链接：https://pan.baidu.com/s/1JUhY6KtjtyJTSlfK6e6OFQ
提取码：q99h
），代码展示如下：
（1）控制类代码：
/**
* 微信支付（返回参数给前端）
* @param request
* @param response
* @return
* @throws Exception
*/
@ResponseBody
@RequestMapping(value="/doWxPay")
public Object doWxPay(HttpServletRequest request, HttpServletResponse response)throws Exception {
Map<String, Object> returnMap = new HashMap<>();
PageData pd = this.getPageData();
if(StringUtils.isEmpty(pd.getString("openId"))){
returnMap.put("result", "no openId");
return AppUtil.returnObject(returnMap);
}
return doWxPay(request, response, pd.getString("openId"),pd.getInteger("totalFee"));
}
/**
* 微信支付
* @param request
* @param response
* @param openId
* @return
* @throws Exception
*/
public Object doWxPay(HttpServletRequest request, HttpServletResponse response, String openId,Integer totalFee) throws Exception {
// 发起微信支付
WXPay wxpay = null;
Map<String, String> result = new HashMap<>();
TMembers tMembers = memberService.getMemberByMpOpenId(openId);
// 获取请求ip地址
String ip = request.getHeader("x-forwarded-for");
if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
ip = request.getHeader("Proxy-Client-IP");
}
if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
ip = request.getHeader("WL-Proxy-Client-IP");
}
if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
ip = request.getRemoteAddr();
}
if (ip.indexOf(",") != -1) {
String[] ips = ip.split(",");
ip = ips[0].trim();
}
try {
// ******************************************
//
// 统一下单
//
// ******************************************
wxpay = new WXPay(iWxPayConfig); // *** 注入自己实现的微信配置类, 创建WXPay核心类, WXPay 包括统一下单接口
Map<String, String> data = new HashMap<String, String>();
data.put("body", "微课充值中心-微币充值");
data.put("out_trade_no", UuidUtil.get32UUID().substring(0,20)+"_"+tMembers.getMemberId()); // 订单唯一编号, 不允许重复(uuid前20位_memberId)
data.put("total_fee", String.valueOf(new BigDecimal(totalFee).intValue())); // 订单金额, 单位分
data.put("spbill_create_ip", ip); // 下单ip
data.put("openid", openId); // 微信公众号统一标示openid
data.put("notify_url", WXPayConstants.NOTIFYURL); // 订单结果通知, 微信主动回调此接口
data.put("trade_type", "JSAPI"); // 固定填写
Map<String, String> responseDate = wxpay.unifiedOrder(data); // 微信sdk集成方法, 统一下单接口unifiedOrder, 此处请求 MD5加密 加密方式
String returnCode = responseDate.get("return_code");
if (!WXPayConstants.SUCCESS.equals(returnCode)) {
return null;
}
String resultCode = responseDate.get("result_code");
if (!WXPayConstants.SUCCESS.equals(resultCode)) {
return null;
}
String prepay_id = responseDate.get("prepay_id");
if (prepay_id == null) {
return null;
}
// ******************************************
//
// 前端调起微信支付必要参数
//
// ******************************************
String packages = "prepay_id=" + prepay_id;
Map<String, String> wxPayMap = new HashMap<String, String>();
wxPayMap.put("appId", iWxPayConfig.getAppID());
wxPayMap.put("nonceStr", UuidUtil.get32UUID());
wxPayMap.put("package", packages);
wxPayMap.put("signType", "MD5");
wxPayMap.put("timeStamp", String.valueOf(System.currentTimeMillis()));
// 加密串中包括 appId timeStamp nonceStr package signType 5个参数, 通过sdk WXPayUtil类加密, 注意, 此处使用 MD5加密 方式
String sign = WXPayUtil.generateSignature(wxPayMap, iWxPayConfig.getKey());
// ******************************************
//
// 返回给前端调起微信支付的必要参数
//
// ******************************************
result.put("prepay_id", prepay_id);
result.put("sign", sign);
result.putAll(wxPayMap);
return result;
} catch (Exception e) {
}
return null;
}2.IWxPayConfig类：
import org.springframework.stereotype.Service;
import java.io.ByteArrayInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;
@Service(value = "wxPayConfig")
public class IWxPayConfig extends WXPayConfig { // 继承sdk WXPayConfig 实现sdk中部分抽象方法
private byte[] certData;
private String app_id = WXPayConstants.APPID;
private String wx_pay_key = WXPayConstants.PATERNERKEY;
private String wx_pay_mch_id = WXPayConstants.MCHID;
public IWxPayConfig() throws Exception { // 构造方法读取证书, 通过getCertStream 可以使sdk获取到证书
String certPath = WXPayConstants.CERTPATH;
File file = new File(certPath);
InputStream certStream = new FileInputStream(file);
this.certData = new byte[(int) file.length()];
certStream.read(this.certData);
certStream.close();
}
@Override
public String getAppID() {
return app_id;
}
@Override
public String getMchID() {
return wx_pay_mch_id;
}
@Override
public String getKey() {
return wx_pay_key;
}
@Override
public InputStream getCertStream() {
return new ByteArrayInputStream(this.certData);
}
@Override
public IWXPayDomain getWXPayDomain() { // 这个方法需要这样实现, 否则无法正常初始化WXPay
IWXPayDomain iwxPayDomain = new IWXPayDomain() {
@Override
public void report(String domain, long elapsedTimeMillis, Exception ex) {
}
@Override
public DomainInfo getDomain(WXPayConfig config) {
return new IWXPayDomain.DomainInfo(WXPayConstants.DOMAIN_API, true);
}
};
return iwxPayDomain;
}
}3.WXPayConstants类：
import org.apache.http.client.HttpClient;
/**
* 微信支付常量
* @author Administrator
*
*/
public class WXPayConstants {
public static final Double PERCENTGAINED = 0.8;//提现获取百分比
public static final String CERTPATH = "cert证书保存位置";//cert证书保存位置
public static final String APPID = "APPID";//APPID
public static final String MCHID ="微信支付商户号";//微信支付商户号
public static final String PATERNERKEY = "支付秘钥";//支付秘钥
public static final String APPSECRET = "身份秘钥";//身份秘钥
public static final String NOTIFYURL = "支付成功回调接口";//支付成功回调接口
public enum SignType {
MD5, HMACSHA256
}
public static final String DOMAIN_API = "api.mch.weixin.qq.com";
public static final String DOMAIN_API2 = "api2.mch.weixin.qq.com";
public static final String DOMAIN_APIHK = "apihk.mch.weixin.qq.com";
public static final String DOMAIN_APIUS = "apius.mch.weixin.qq.com";
public static final String FAIL = "FAIL";
public static final String SUCCESS = "SUCCESS";
public static final String HMACSHA256 = "HMAC-SHA256";
public static final String MD5 = "MD5";
public static final String FIELD_SIGN = "sign";
public static final String FIELD_SIGN_TYPE = "sign_type";
public static final String WXPAYSDK_VERSION = "WXPaySDK/3.0.9";
public static final String USER_AGENT = WXPAYSDK_VERSION +
" (" + System.getProperty("os.arch") + " " + System.getProperty("os.name") + " " + System.getProperty("os.version") +
") Java/" + System.getProperty("java.version") + " HttpClient/" + HttpClient.class.getPackage().getImplementationVersion();
public static final String MICROPAY_URL_SUFFIX = "/pay/micropay";
public static final String UNIFIEDORDER_URL_SUFFIX = "/pay/unifiedorder";
public static final String ORDERQUERY_URL_SUFFIX = "/pay/orderquery";
public static final String REVERSE_URL_SUFFIX = "/secapi/pay/reverse";
public static final String CLOSEORDER_URL_SUFFIX = "/pay/closeorder";
public static final String REFUND_URL_SUFFIX = "/secapi/pay/refund";
public static final String REFUNDQUERY_URL_SUFFIX = "/pay/refundquery";
public static final String DOWNLOADBILL_URL_SUFFIX = "/pay/downloadbill";
public static final String REPORT_URL_SUFFIX = "/payitil/report";
public static final String SHORTURL_URL_SUFFIX = "/tools/shorturl";
public static final String AUTHCODETOOPENID_URL_SUFFIX = "/tools/authcodetoopenid";
// sandbox
public static final String SANDBOX_MICROPAY_URL_SUFFIX = "/sandboxnew/pay/micropay";
public static final String SANDBOX_UNIFIEDORDER_URL_SUFFIX = "/sandboxnew/pay/unifiedorder";
public static final String SANDBOX_ORDERQUERY_URL_SUFFIX = "/sandboxnew/pay/orderquery";
public static final String SANDBOX_REVERSE_URL_SUFFIX = "/sandboxnew/secapi/pay/reverse";
public static final String SANDBOX_CLOSEORDER_URL_SUFFIX = "/sandboxnew/pay/closeorder";
public static final String SANDBOX_REFUND_URL_SUFFIX = "/sandboxnew/secapi/pay/refund";
public static final String SANDBOX_REFUNDQUERY_URL_SUFFIX = "/sandboxnew/pay/refundquery";
public static final String SANDBOX_DOWNLOADBILL_URL_SUFFIX = "/sandboxnew/pay/downloadbill";
public static final String SANDBOX_REPORT_URL_SUFFIX = "/sandboxnew/payitil/report";
public static final String SANDBOX_SHORTURL_URL_SUFFIX = "/sandboxnew/tools/shorturl";
public static final String SANDBOX_AUTHCODETOOPENID_URL_SUFFIX = "/sandboxnew/tools/authcodetoopenid";
}4.WXPayUtil类：
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.StringWriter;
import java.security.MessageDigest;
import java.security.SecureRandom;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Map;
import java.util.Random;
import java.util.Set;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.transform.OutputKeys;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;
import org.slf4j.LoggerFactory;
import com.ldkj.smms.util.wxtools.pay.WXPayConstants.SignType;
import org.slf4j.Logger;
import javax.crypto.Mac;
import javax.crypto.spec.SecretKeySpec;
/**
* 微信支付工具类
*
* @author Administrator
*
*/
public class WXPayUtil {
/**
* 生成签名
*
* @param data
* 待签名数据
* @param key
* API密钥
* @return 签名
*/
public static String generateSignature(final Map<String, String> data, String key) throws Exception {
return generateSignature(data, key, SignType.MD5);
}
/**
* 生成签名. 注意，若含有sign_type字段，必须和signType参数保持一致。
*
* @param data
* 待签名数据
* @param key
* API密钥
* @param signType
* 签名方式
* @return 签名
*/
public static String generateSignature(final Map<String, String> data, String key, SignType signType)
throws Exception {
Set<String> keySet = data.keySet();
String[] keyArray = keySet.toArray(new String[keySet.size()]);
Arrays.sort(keyArray);
StringBuilder sb = new StringBuilder();
for (String k : keyArray) {
if (k.equals(WXPayConstants.FIELD_SIGN)) {
continue;
}
if (data.get(k).trim().length() > 0) // 参数值为空，则不参与签名
sb.append(k).append("=").append(data.get(k).trim()).append("&");
}
sb.append("key=").append(key);
if (SignType.MD5.equals(signType)) {
return MD5(sb.toString()).toUpperCase();
} else if (SignType.HMACSHA256.equals(signType)) {
return HMACSHA256(sb.toString(), key);
} else {
throw new Exception(String.format("Invalid sign_type: %s", signType));
}
}
}5.WXPay类：
import java.util.HashMap;
import java.util.Map;
import com.ldkj.smms.util.wxtools.pay.WXPayConstants.SignType;
public class WXPay {
private WXPayConfig config;
private SignType signType;
private boolean autoReport;
private boolean useSandbox;
private String notifyUrl;
private WXPayRequest wxPayRequest;
public WXPay(final WXPayConfig config) throws Exception {
this(config, null, true, false);
}
public WXPay(final WXPayConfig config, final boolean autoReport) throws Exception {
this(config, null, autoReport, false);
}
public WXPay(final WXPayConfig config, final boolean autoReport, final boolean useSandbox) throws Exception{
this(config, null, autoReport, useSandbox);
}
public WXPay(final WXPayConfig config, final String notifyUrl) throws Exception {
this(config, notifyUrl, true, false);
}
public WXPay(final WXPayConfig config, final String notifyUrl, final boolean autoReport) throws Exception {
this(config, notifyUrl, autoReport, false);
}
public WXPay(final WXPayConfig config, final String notifyUrl, final boolean autoReport, final boolean useSandbox) throws Exception {
this.config = config;
this.notifyUrl = notifyUrl;
this.autoReport = autoReport;
this.useSandbox = useSandbox;
if (useSandbox) {
this.signType = SignType.MD5; // 沙箱环境
}
else {
//默认的加密方式，这是个坑，因为开发代码默认是HMACSHA256，而我们都用MD5，一定要注意修改
//this.signType = SignType.HMACSHA256;
this.signType = SignType.MD5;
}
this.wxPayRequest = new WXPayRequest(config);
}
@SuppressWarnings("unused")
private void checkWXPayConfig() throws Exception {
if (this.config == null) {
throw new Exception("config is null");
}
if (this.config.getAppID() == null || this.config.getAppID().trim().length() == 0) {
throw new Exception("appid in config is empty");
}
if (this.config.getMchID() == null || this.config.getMchID().trim().length() == 0) {
throw new Exception("appid in config is empty");
}
if (this.config.getCertStream() == null) {
throw new Exception("cert stream in config is empty");
}
if (this.config.getWXPayDomain() == null){
throw new Exception("config.getWXPayDomain() is null");
}
if (this.config.getHttpConnectTimeoutMs() < 10) {
throw new Exception("http connect timeout is too small");
}
if (this.config.getHttpReadTimeoutMs() < 10) {
throw new Exception("http read timeout is too small");
}
}
/**
* 向 Map 中添加 appid、mch_id、nonce_str、sign_type、sign <br>
* 该函数适用于商户适用于统一下单等接口，不适用于红包、代金券接口
*
* @param reqData
* @return
* @throws Exception
*/
public Map<String, String> fillRequestData(Map<String, String> reqData) throws Exception {
reqData.put("appid", config.getAppID());
reqData.put("mch_id", config.getMchID());
reqData.put("nonce_str", WXPayUtil.generateNonceStr());
if (SignType.MD5.equals(this.signType)) {
reqData.put("sign_type", WXPayConstants.MD5);
}
else if (SignType.HMACSHA256.equals(this.signType)) {
reqData.put("sign_type", WXPayConstants.HMACSHA256);
}
reqData.put("sign", WXPayUtil.generateSignature(reqData, config.getKey(), this.signType));
return reqData;
}
/**
* 判断xml数据的sign是否有效，必须包含sign字段，否则返回false。
*
* @param reqData 向wxpay post的请求数据
* @return 签名是否有效
* @throws Exception
*/
public boolean isResponseSignatureValid(Map<String, String> reqData) throws Exception {
// 返回数据的签名方式和请求中给定的签名方式是一致的
return WXPayUtil.isSignatureValid(reqData, this.config.getKey(), this.signType);
}
/**
* 判断支付结果通知中的sign是否有效
*
* @param reqData 向wxpay post的请求数据
* @return 签名是否有效
* @throws Exception
*/
public boolean isPayResultNotifySignatureValid(Map<String, String> reqData) throws Exception {
String signTypeInData = reqData.get(WXPayConstants.FIELD_SIGN_TYPE);
SignType signType;
if (signTypeInData == null) {
signType = SignType.MD5;
}
else {
signTypeInData = signTypeInData.trim();
if (signTypeInData.length() == 0) {
signType = SignType.MD5;
}
else if (WXPayConstants.MD5.equals(signTypeInData)) {
signType = SignType.MD5;
}
else if (WXPayConstants.HMACSHA256.equals(signTypeInData)) {
signType = SignType.HMACSHA256;
}
else {
throw new Exception(String.format("Unsupported sign_type: %s", signTypeInData));
}
}
return WXPayUtil.isSignatureValid(reqData, this.config.getKey(), signType);
}
/**
* 不需要证书的请求
* @param urlSuffix String
* @param reqData 向wxpay post的请求数据
* @param connectTimeoutMs 超时时间，单位是毫秒
* @param readTimeoutMs 超时时间，单位是毫秒
* @return API返回数据
* @throws Exception
*/
public String requestWithoutCert(String urlSuffix, Map<String, String> reqData,
int connectTimeoutMs, int readTimeoutMs) throws Exception {
String msgUUID = reqData.get("nonce_str");
String reqBody = WXPayUtil.mapToXml(reqData);
String resp = this.wxPayRequest.requestWithoutCert(urlSuffix, msgUUID, reqBody, connectTimeoutMs, readTimeoutMs, autoReport);
return resp;
}
/**
* 需要证书的请求
* @param urlSuffix String
* @param reqData 向wxpay post的请求数据 Map
* @param connectTimeoutMs 超时时间，单位是毫秒
* @param readTimeoutMs 超时时间，单位是毫秒
* @return API返回数据
* @throws Exception
*/
public String requestWithCert(String urlSuffix, Map<String, String> reqData,
int connectTimeoutMs, int readTimeoutMs) throws Exception {
String msgUUID= reqData.get("nonce_str");
String reqBody = WXPayUtil.mapToXml(reqData);
String resp = this.wxPayRequest.requestWithCert(urlSuffix, msgUUID, reqBody, connectTimeoutMs, readTimeoutMs, this.autoReport);
return resp;
}
/**
* 处理 HTTPS API返回数据，转换成Map对象。return_code为SUCCESS时，验证签名。
* @param xmlStr API返回的XML格式数据
* @return Map类型数据
* @throws Exception
*/
public Map<String, String> processResponseXml(String xmlStr) throws Exception {
String RETURN_CODE = "return_code";
String return_code;
Map<String, String> respData = WXPayUtil.xmlToMap(xmlStr);
if (respData.containsKey(RETURN_CODE)) {
return_code = respData.get(RETURN_CODE);
}
else {
throw new Exception(String.format("No `return_code` in XML: %s", xmlStr));
}
if (return_code.equals(WXPayConstants.FAIL)) {
return respData;
}
else if (return_code.equals(WXPayConstants.SUCCESS)) {
if (this.isResponseSignatureValid(respData)) {
return respData;
}
else {
throw new Exception(String.format("Invalid sign value in XML: %s", xmlStr));
}
}
else {
throw new Exception(String.format("return_code value %s is invalid in XML: %s", return_code, xmlStr));
}
}
/**
* 作用：提交刷卡支付<br>
* 场景：刷卡支付
* @param reqData 向wxpay post的请求数据
* @return API返回数据
* @throws Exception
*/
public Map<String, String> microPay(Map<String, String> reqData) throws Exception {
return this.microPay(reqData, this.config.getHttpConnectTimeoutMs(), this.config.getHttpReadTimeoutMs());
}
/**
* 作用：提交刷卡支付<br>
* 场景：刷卡支付
* @param reqData 向wxpay post的请求数据
* @param connectTimeoutMs 连接超时时间，单位是毫秒
* @param readTimeoutMs 读超时时间，单位是毫秒
* @return API返回数据
* @throws Exception
*/
public Map<String, String> microPay(Map<String, String> reqData, int connectTimeoutMs, int readTimeoutMs) throws Exception {
String url;
if (this.useSandbox) {
url = WXPayConstants.SANDBOX_MICROPAY_URL_SUFFIX;
}
else {
url = WXPayConstants.MICROPAY_URL_SUFFIX;
}
String respXml = this.requestWithoutCert(url, this.fillRequestData(reqData), connectTimeoutMs, readTimeoutMs);
return this.processResponseXml(respXml);
}
/**
* 提交刷卡支付，针对软POS，尽可能做成功
* 内置重试机制，最多60s
* @param reqData
* @return
* @throws Exception
*/
public Map<String, String> microPayWithPos(Map<String, String> reqData) throws Exception {
return this.microPayWithPos(reqData, this.config.getHttpConnectTimeoutMs());
}
/**
* 提交刷卡支付，针对软POS，尽可能做成功
* 内置重试机制，最多60s
* @param reqData
* @param connectTimeoutMs
* @return
* @throws Exception
*/
public Map<String, String> microPayWithPos(Map<String, String> reqData, int connectTimeoutMs) throws Exception {
int remainingTimeMs = 60*1000;
long startTimestampMs = 0;
Map<String, String> lastResult = null;
Exception lastException = null;
while (true) {
startTimestampMs = WXPayUtil.getCurrentTimestampMs();
int readTimeoutMs = remainingTimeMs - connectTimeoutMs;
if (readTimeoutMs > 1000) {
try {
lastResult = this.microPay(reqData, connectTimeoutMs, readTimeoutMs);
String returnCode = lastResult.get("return_code");
if (returnCode.equals("SUCCESS")) {
String resultCode = lastResult.get("result_code");
String errCode = lastResult.get("err_code");
if (resultCode.equals("SUCCESS")) {
break;
}
else {
// 看错误码，若支付结果未知，则重试提交刷卡支付
if (errCode.equals("SYSTEMERROR") || errCode.equals("BANKERROR") || errCode.equals("USERPAYING")) {
remainingTimeMs = remainingTimeMs - (int)(WXPayUtil.getCurrentTimestampMs() - startTimestampMs);
if (remainingTimeMs <= 100) {
break;
}
else {
WXPayUtil.getLogger().info("microPayWithPos: try micropay again");
if (remainingTimeMs > 5*1000) {
Thread.sleep(5*1000);
}
else {
Thread.sleep(1*1000);
}
continue;
}
}
else {
break;
}
}
}
else {
break;
}
}
catch (Exception ex) {
lastResult = null;
lastException = ex;
}
}
else {
break;
}
}
if (lastResult == null) {
throw lastException;
}
else {
return lastResult;
}
}
/**
* 作用：统一下单<br>
* 场景：公共号支付、扫码支付、APP支付
* @param reqData 向wxpay post的请求数据
* @return API返回数据
* @throws Exception
*/
public Map<String, String> unifiedOrder(Map<String, String> reqData) throws Exception {
return this.unifiedOrder(reqData, config.getHttpConnectTimeoutMs(), this.config.getHttpReadTimeoutMs());
}
/**
* 作用：统一下单<br>
* 场景：公共号支付、扫码支付、APP支付
* @param reqData 向wxpay post的请求数据
* @param connectTimeoutMs 连接超时时间，单位是毫秒
* @param readTimeoutMs 读超时时间，单位是毫秒
* @return API返回数据
* @throws Exception
*/
public Map<String, String> unifiedOrder(Map<String, String> reqData, int connectTimeoutMs, int readTimeoutMs) throws Exception {
String url;
if (this.useSandbox) {
url = WXPayConstants.SANDBOX_UNIFIEDORDER_URL_SUFFIX;
}
else {
url = WXPayConstants.UNIFIEDORDER_URL_SUFFIX;
}
if(this.notifyUrl != null) {
reqData.put("notify_url", this.notifyUrl);
}
String respXml = this.requestWithoutCert(url, this.fillRequestData(reqData), connectTimeoutMs, readTimeoutMs);
return this.processResponseXml(respXml);
}
/**
* 作用：查询订单<br>
* 场景：刷卡支付、公共号支付、扫码支付、APP支付
* @param reqData 向wxpay post的请求数据
* @return API返回数据
* @throws Exception
*/
public Map<String, String> orderQuery(Map<String, String> reqData) throws Exception {
return this.orderQuery(reqData, config.getHttpConnectTimeoutMs(), this.config.getHttpReadTimeoutMs());
}
/**
* 作用：查询订单<br>
* 场景：刷卡支付、公共号支付、扫码支付、APP支付
* @param reqData 向wxpay post的请求数据 int
* @param connectTimeoutMs 连接超时时间，单位是毫秒
* @param readTimeoutMs 读超时时间，单位是毫秒
* @return API返回数据
* @throws Exception
*/
public Map<String, String> orderQuery(Map<String, String> reqData, int connectTimeoutMs, int readTimeoutMs) throws Exception {
String url;
if (this.useSandbox) {
url = WXPayConstants.SANDBOX_ORDERQUERY_URL_SUFFIX;
}
else {
url = WXPayConstants.ORDERQUERY_URL_SUFFIX;
}
String respXml = this.requestWithoutCert(url, this.fillRequestData(reqData), connectTimeoutMs, readTimeoutMs);
return this.processResponseXml(respXml);
}
/**
* 作用：撤销订单<br>
* 场景：刷卡支付
* @param reqData 向wxpay post的请求数据
* @return API返回数据
* @throws Exception
*/
public Map<String, String> reverse(Map<String, String> reqData) throws Exception {
return this.reverse(reqData, config.getHttpConnectTimeoutMs(), this.config.getHttpReadTimeoutMs());
}
/**
* 作用：撤销订单<br>
* 场景：刷卡支付<br>
* 其他：需要证书
* @param reqData 向wxpay post的请求数据
* @param connectTimeoutMs 连接超时时间，单位是毫秒
* @param readTimeoutMs 读超时时间，单位是毫秒
* @return API返回数据
* @throws Exception
*/
public Map<String, String> reverse(Map<String, String> reqData, int connectTimeoutMs, int readTimeoutMs) throws Exception {
String url;
if (this.useSandbox) {
url = WXPayConstants.SANDBOX_REVERSE_URL_SUFFIX;
}
else {
url = WXPayConstants.REVERSE_URL_SUFFIX;
}
String respXml = this.requestWithCert(url, this.fillRequestData(reqData), connectTimeoutMs, readTimeoutMs);
return this.processResponseXml(respXml);
}
/**
* 作用：关闭订单<br>
* 场景：公共号支付、扫码支付、APP支付
* @param reqData 向wxpay post的请求数据
* @return API返回数据
* @throws Exception
*/
public Map<String, String> closeOrder(Map<String, String> reqData) throws Exception {
return this.closeOrder(reqData, config.getHttpConnectTimeoutMs(), this.config.getHttpReadTimeoutMs());
}
/**
* 作用：关闭订单<br>
* 场景：公共号支付、扫码支付、APP支付
* @param reqData 向wxpay post的请求数据
* @param connectTimeoutMs 连接超时时间，单位是毫秒
* @param readTimeoutMs 读超时时间，单位是毫秒
* @return API返回数据
* @throws Exception
*/
public Map<String, String> closeOrder(Map<String, String> reqData, int connectTimeoutMs, int readTimeoutMs) throws Exception {
String url;
if (this.useSandbox) {
url = WXPayConstants.SANDBOX_CLOSEORDER_URL_SUFFIX;
}
else {
url = WXPayConstants.CLOSEORDER_URL_SUFFIX;
}
String respXml = this.requestWithoutCert(url, this.fillRequestData(reqData), connectTimeoutMs, readTimeoutMs);
return this.processResponseXml(respXml);
}
/**
* 作用：申请退款<br>
* 场景：刷卡支付、公共号支付、扫码支付、APP支付
* @param reqData 向wxpay post的请求数据
* @return API返回数据
* @throws Exception
*/
public Map<String, String> refund(Map<String, String> reqData) throws Exception {
return this.refund(reqData, this.config.getHttpConnectTimeoutMs(), this.config.getHttpReadTimeoutMs());
}
/**
* 作用：申请退款<br>
* 场景：刷卡支付、公共号支付、扫码支付、APP支付<br>
* 其他：需要证书
* @param reqData 向wxpay post的请求数据
* @param connectTimeoutMs 连接超时时间，单位是毫秒
* @param readTimeoutMs 读超时时间，单位是毫秒
* @return API返回数据
* @throws Exception
*/
public Map<String, String> refund(Map<String, String> reqData, int connectTimeoutMs, int readTimeoutMs) throws Exception {
String url;
if (this.useSandbox) {
url = WXPayConstants.SANDBOX_REFUND_URL_SUFFIX;
}
else {
url = WXPayConstants.REFUND_URL_SUFFIX;
}
String respXml = this.requestWithCert(url, this.fillRequestData(reqData), connectTimeoutMs, readTimeoutMs);
return this.processResponseXml(respXml);
}
/**
* 作用：退款查询<br>
* 场景：刷卡支付、公共号支付、扫码支付、APP支付
* @param reqData 向wxpay post的请求数据
* @return API返回数据
* @throws Exception
*/
public Map<String, String> refundQuery(Map<String, String> reqData) throws Exception {
return this.refundQuery(reqData, this.config.getHttpConnectTimeoutMs(), this.config.getHttpReadTimeoutMs());
}
/**
* 作用：退款查询<br>
* 场景：刷卡支付、公共号支付、扫码支付、APP支付
* @param reqData 向wxpay post的请求数据
* @param connectTimeoutMs 连接超时时间，单位是毫秒
* @param readTimeoutMs 读超时时间，单位是毫秒
* @return API返回数据
* @throws Exception
*/
public Map<String, String> refundQuery(Map<String, String> reqData, int connectTimeoutMs, int readTimeoutMs) throws Exception {
String url;
if (this.useSandbox) {
url = WXPayConstants.SANDBOX_REFUNDQUERY_URL_SUFFIX;
}
else {
url = WXPayConstants.REFUNDQUERY_URL_SUFFIX;
}
String respXml = this.requestWithoutCert(url, this.fillRequestData(reqData), connectTimeoutMs, readTimeoutMs);
return this.processResponseXml(respXml);
}
/**
* 作用：对账单下载（成功时返回对账单数据，失败时返回XML格式数据）<br>
* 场景：刷卡支付、公共号支付、扫码支付、APP支付
* @param reqData 向wxpay post的请求数据
* @return API返回数据
* @throws Exception
*/
public Map<String, String> downloadBill(Map<String, String> reqData) throws Exception {
return this.downloadBill(reqData, this.config.getHttpConnectTimeoutMs(), this.config.getHttpReadTimeoutMs());
}
/**
* 作用：对账单下载<br>
* 场景：刷卡支付、公共号支付、扫码支付、APP支付<br>
* 其他：无论是否成功都返回Map。若成功，返回的Map中含有return_code、return_msg、data，
* 其中return_code为`SUCCESS`，data为对账单数据。
* @param reqData 向wxpay post的请求数据
* @param connectTimeoutMs 连接超时时间，单位是毫秒
* @param readTimeoutMs 读超时时间，单位是毫秒
* @return 经过封装的API返回数据
* @throws Exception
*/
public Map<String, String> downloadBill(Map<String, String> reqData, int connectTimeoutMs, int readTimeoutMs) throws Exception {
String url;
if (this.useSandbox) {
url = WXPayConstants.SANDBOX_DOWNLOADBILL_URL_SUFFIX;
}
else {
url = WXPayConstants.DOWNLOADBILL_URL_SUFFIX;
}
String respStr = this.requestWithoutCert(url, this.fillRequestData(reqData), connectTimeoutMs, readTimeoutMs).trim();
Map<String, String> ret;
// 出现错误，返回XML数据
if (respStr.indexOf("<") == 0) {
ret = WXPayUtil.xmlToMap(respStr);
}
else {
// 正常返回csv数据
ret = new HashMap<String, String>();
ret.put("return_code", WXPayConstants.SUCCESS);
ret.put("return_msg", "ok");
ret.put("data", respStr);
}
return ret;
}
/**
* 作用：交易保障<br>
* 场景：刷卡支付、公共号支付、扫码支付、APP支付
* @param reqData 向wxpay post的请求数据
* @return API返回数据
* @throws Exception
*/
public Map<String, String> report(Map<String, String> reqData) throws Exception {
return this.report(reqData, this.config.getHttpConnectTimeoutMs(), this.config.getHttpReadTimeoutMs());
}
/**
* 作用：交易保障<br>
* 场景：刷卡支付、公共号支付、扫码支付、APP支付
* @param reqData 向wxpay post的请求数据
* @param connectTimeoutMs 连接超时时间，单位是毫秒
* @param readTimeoutMs 读超时时间，单位是毫秒
* @return API返回数据
* @throws Exception
*/
public Map<String, String> report(Map<String, String> reqData, int connectTimeoutMs, int readTimeoutMs) throws Exception {
String url;
if (this.useSandbox) {
url = WXPayConstants.SANDBOX_REPORT_URL_SUFFIX;
}
else {
url = WXPayConstants.REPORT_URL_SUFFIX;
}
String respXml = this.requestWithoutCert(url, this.fillRequestData(reqData), connectTimeoutMs, readTimeoutMs);
return WXPayUtil.xmlToMap(respXml);
}
/**
* 作用：转换短链接<br>
* 场景：刷卡支付、扫码支付
* @param reqData 向wxpay post的请求数据
* @return API返回数据
* @throws Exception
*/
public Map<String, String> shortUrl(Map<String, String> reqData) throws Exception {
return this.shortUrl(reqData, this.config.getHttpConnectTimeoutMs(), this.config.getHttpReadTimeoutMs());
}
/**
* 作用：转换短链接<br>
* 场景：刷卡支付、扫码支付
* @param reqData 向wxpay post的请求数据
* @return API返回数据
* @throws Exception
*/
public Map<String, String> shortUrl(Map<String, String> reqData, int connectTimeoutMs, int readTimeoutMs) throws Exception {
String url;
if (this.useSandbox) {
url = WXPayConstants.SANDBOX_SHORTURL_URL_SUFFIX;
}
else {
url = WXPayConstants.SHORTURL_URL_SUFFIX;
}
String respXml = this.requestWithoutCert(url, this.fillRequestData(reqData), connectTimeoutMs, readTimeoutMs);
return this.processResponseXml(respXml);
}
/**
* 作用：授权码查询OPENID接口<br>
* 场景：刷卡支付
* @param reqData 向wxpay post的请求数据
* @return API返回数据
* @throws Exception
*/
public Map<String, String> authCodeToOpenid(Map<String, String> reqData) throws Exception {
return this.authCodeToOpenid(reqData, this.config.getHttpConnectTimeoutMs(), this.config.getHttpReadTimeoutMs());
}
/**
* 作用：授权码查询OPENID接口<br>
* 场景：刷卡支付
* @param reqData 向wxpay post的请求数据
* @param connectTimeoutMs 连接超时时间，单位是毫秒
* @param readTimeoutMs 读超时时间，单位是毫秒
* @return API返回数据
* @throws Exception
*/
public Map<String, String> authCodeToOpenid(Map<String, String> reqData, int connectTimeoutMs, int readTimeoutMs) throws Exception {
String url;
if (this.useSandbox) {
url = WXPayConstants.SANDBOX_AUTHCODETOOPENID_URL_SUFFIX;
}
else {
url = WXPayConstants.AUTHCODETOOPENID_URL_SUFFIX;
}
String respXml = this.requestWithoutCert(url, this.fillRequestData(reqData), connectTimeoutMs, readTimeoutMs);
return this.processResponseXml(respXml);
}
} // end class6.WXPayConfig类：
import java.io.InputStream;
public abstract class WXPayConfig {
/**
* 获取 App ID
*
* @return App ID
*/
abstract String getAppID();
/**
* 获取 Mch ID
*
* @return Mch ID
*/
abstract String getMchID();
/**
* 获取 API 密钥
*
* @return API密钥
*/
abstract String getKey();
/**
* 获取商户证书内容
*
* @return 商户证书内容
*/
abstract InputStream getCertStream();
/**
* HTTP(S) 连接超时时间，单位毫秒
*
* @return
*/
public int getHttpConnectTimeoutMs() {
return 6*1000;
}
/**
* HTTP(S) 读数据超时时间，单位毫秒
*
* @return
*/
public int getHttpReadTimeoutMs() {
return 8*1000;
}
/**
* 获取WXPayDomain, 用于多域名容灾自动切换
* @return
*/
abstract IWXPayDomain getWXPayDomain();
/**
* 是否自动上报。
* 若要关闭自动上报，子类中实现该函数返回 false 即可。
*
* @return
*/
public boolean shouldAutoReport() {
return true;
}
/**
* 进行健康上报的线程的数量
*
* @return
*/
public int getReportWorkerNum() {
return 6;
}
/**
* 健康上报缓存消息的最大数量。会有线程去独立上报
* 粗略计算：加入一条消息200B，10000消息占用空间 2000 KB，约为2MB，可以接受
*
* @return
*/
public int getReportQueueMaxSize() {
return 10000;
}
/**
* 批量上报，一次最多上报多个数据
*
* @return
*/
public int getReportBatchSize() {
return 10;
}
}7.WXPayRequest类：
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.config.RegistryBuilder;
import org.apache.http.conn.ConnectTimeoutException;
import org.apache.http.conn.socket.ConnectionSocketFactory;
import org.apache.http.conn.socket.PlainConnectionSocketFactory;
import org.apache.http.conn.ssl.DefaultHostnameVerifier;
import org.apache.http.conn.ssl.SSLConnectionSocketFactory;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.impl.conn.BasicHttpClientConnectionManager;
import org.apache.http.util.EntityUtils;
import javax.net.ssl.KeyManagerFactory;
import javax.net.ssl.SSLContext;
import java.io.InputStream;
import java.net.SocketTimeoutException;
import java.net.UnknownHostException;
import java.security.KeyStore;
import java.security.SecureRandom;
import static com.ldkj.smms.util.wxtools.pay.WXPayConstants.USER_AGENT;
public class WXPayRequest {
private WXPayConfig config;
public WXPayRequest(WXPayConfig config) throws Exception{
this.config = config;
}
/**
* 请求，只请求一次，不做重试
* @param domain
* @param urlSuffix
* @param uuid
* @param data
* @param connectTimeoutMs
* @param readTimeoutMs
* @param useCert 是否使用证书，针对退款、撤销等操作
* @return
* @throws Exception
*/
private String requestOnce(final String domain, String urlSuffix, String uuid, String data, int connectTimeoutMs, int readTimeoutMs, boolean useCert) throws Exception {
BasicHttpClientConnectionManager connManager;
if (useCert) {
// 证书
char[] password = config.getMchID().toCharArray();
InputStream certStream = config.getCertStream();
KeyStore ks = KeyStore.getInstance("PKCS12");
ks.load(certStream, password);
// 实例化密钥库 & 初始化密钥工厂
KeyManagerFactory kmf = KeyManagerFactory.getInstance(KeyManagerFactory.getDefaultAlgorithm());
kmf.init(ks, password);
// 创建 SSLContext
SSLContext sslContext = SSLContext.getInstance("TLS");
sslContext.init(kmf.getKeyManagers(), null, new SecureRandom());
SSLConnectionSocketFactory sslConnectionSocketFactory = new SSLConnectionSocketFactory(
sslContext,
new String[]{"TLSv1"},
null,
new DefaultHostnameVerifier());
connManager = new BasicHttpClientConnectionManager(
RegistryBuilder.<ConnectionSocketFactory>create()
.register("http", PlainConnectionSocketFactory.getSocketFactory())
.register("https", sslConnectionSocketFactory)
.build(),
null,
null,
null
);
}
else {
connManager = new BasicHttpClientConnectionManager(
RegistryBuilder.<ConnectionSocketFactory>create()
.register("http", PlainConnectionSocketFactory.getSocketFactory())
.register("https", SSLConnectionSocketFactory.getSocketFactory())
.build(),
null,
null,
null
);
}
HttpClient httpClient = HttpClientBuilder.create()
.setConnectionManager(connManager)
.build();
String url = "https://" + domain + urlSuffix;
HttpPost httpPost = new HttpPost(url);
RequestConfig requestConfig = RequestConfig.custom().setSocketTimeout(readTimeoutMs).setConnectTimeout(connectTimeoutMs).build();
httpPost.setConfig(requestConfig);
StringEntity postEntity = new StringEntity(data, "UTF-8");
httpPost.addHeader("Content-Type", "text/xml");
httpPost.addHeader("User-Agent", USER_AGENT + " " + config.getMchID());
httpPost.setEntity(postEntity);
HttpResponse httpResponse = httpClient.execute(httpPost);
HttpEntity httpEntity = httpResponse.getEntity();
return EntityUtils.toString(httpEntity, "UTF-8");
}
private String request(String urlSuffix, String uuid, String data, int connectTimeoutMs, int readTimeoutMs, boolean useCert, boolean autoReport) throws Exception {
Exception exception = null;
long elapsedTimeMillis = 0;
long startTimestampMs = WXPayUtil.getCurrentTimestampMs();
boolean firstHasDnsErr = false;
boolean firstHasConnectTimeout = false;
boolean firstHasReadTimeout = false;
IWXPayDomain.DomainInfo domainInfo = config.getWXPayDomain().getDomain(config);
if(domainInfo == null){
throw new Exception("WXPayConfig.getWXPayDomain().getDomain() is empty or null");
}
try {
String result = requestOnce(domainInfo.domain, urlSuffix, uuid, data, connectTimeoutMs, readTimeoutMs, useCert);
elapsedTimeMillis = WXPayUtil.getCurrentTimestampMs()-startTimestampMs;
config.getWXPayDomain().report(domainInfo.domain, elapsedTimeMillis, null);
WXPayReport.getInstance(config).report(
uuid,
elapsedTimeMillis,
domainInfo.domain,
domainInfo.primaryDomain,
connectTimeoutMs,
readTimeoutMs,
firstHasDnsErr,
firstHasConnectTimeout,
firstHasReadTimeout);
return result;
}
catch (UnknownHostException ex) { // dns 解析错误，或域名不存在
exception = ex;
firstHasDnsErr = true;
elapsedTimeMillis = WXPayUtil.getCurrentTimestampMs()-startTimestampMs;
WXPayUtil.getLogger().warn("UnknownHostException for domainInfo {}", domainInfo);
WXPayReport.getInstance(config).report(
uuid,
elapsedTimeMillis,
domainInfo.domain,
domainInfo.primaryDomain,
connectTimeoutMs,
readTimeoutMs,
firstHasDnsErr,
firstHasConnectTimeout,
firstHasReadTimeout
);
}
catch (ConnectTimeoutException ex) {
exception = ex;
firstHasConnectTimeout = true;
elapsedTimeMillis = WXPayUtil.getCurrentTimestampMs()-startTimestampMs;
WXPayUtil.getLogger().warn("connect timeout happened for domainInfo {}", domainInfo);
WXPayReport.getInstance(config).report(
uuid,
elapsedTimeMillis,
domainInfo.domain,
domainInfo.primaryDomain,
connectTimeoutMs,
readTimeoutMs,
firstHasDnsErr,
firstHasConnectTimeout,
firstHasReadTimeout
);
}
catch (SocketTimeoutException ex) {
exception = ex;
firstHasReadTimeout = true;
elapsedTimeMillis = WXPayUtil.getCurrentTimestampMs()-startTimestampMs;
WXPayUtil.getLogger().warn("timeout happened for domainInfo {}", domainInfo);
WXPayReport.getInstance(config).report(
uuid,
elapsedTimeMillis,
domainInfo.domain,
domainInfo.primaryDomain,
connectTimeoutMs,
readTimeoutMs,
firstHasDnsErr,
firstHasConnectTimeout,
firstHasReadTimeout);
}
catch (Exception ex) {
exception = ex;
elapsedTimeMillis = WXPayUtil.getCurrentTimestampMs()-startTimestampMs;
WXPayReport.getInstance(config).report(
uuid,
elapsedTimeMillis,
domainInfo.domain,
domainInfo.primaryDomain,
connectTimeoutMs,
readTimeoutMs,
firstHasDnsErr,
firstHasConnectTimeout,
firstHasReadTimeout);
}
config.getWXPayDomain().report(domainInfo.domain, elapsedTimeMillis, exception);
throw exception;
}
/**
* 可重试的，非双向认证的请求
* @param urlSuffix
* @param uuid
* @param data
* @return
*/
public String requestWithoutCert(String urlSuffix, String uuid, String data, boolean autoReport) throws Exception {
return this.request(urlSuffix, uuid, data, config.getHttpConnectTimeoutMs(), config.getHttpReadTimeoutMs(), false, autoReport);
}
/**
* 可重试的，非双向认证的请求
* @param urlSuffix
* @param uuid
* @param data
* @param connectTimeoutMs
* @param readTimeoutMs
* @return
*/
public String requestWithoutCert(String urlSuffix, String uuid, String data, int connectTimeoutMs, int readTimeoutMs, boolean autoReport) throws Exception {
return this.request(urlSuffix, uuid, data, connectTimeoutMs, readTimeoutMs, false, autoReport);
}
/**
* 可重试的，双向认证的请求
* @param urlSuffix
* @param uuid
* @param data
* @return
*/
public String requestWithCert(String urlSuffix, String uuid, String data, boolean autoReport) throws Exception {
return this.request(urlSuffix, uuid, data, config.getHttpConnectTimeoutMs(), config.getHttpReadTimeoutMs(), true, autoReport);
}
/**
* 可重试的，双向认证的请求
* @param urlSuffix
* @param uuid
* @param data
* @param connectTimeoutMs
* @param readTimeoutMs
* @return
*/
public String requestWithCert(String urlSuffix, String uuid, String data, int connectTimeoutMs, int readTimeoutMs, boolean autoReport) throws Exception {
return this.request(urlSuffix, uuid, data, connectTimeoutMs, readTimeoutMs, true, autoReport);
}
}8.HttpRequest类：
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.net.URL;
import java.net.URLConnection;
import java.util.List;
import java.util.Map;
import javax.net.ssl.HttpsURLConnection;
public class HttpRequest {
/**
* 向指定URL发送GET方法的请求
*
* @param url
* 发送请求的URL
* @param param
* 请求参数,请求参数应该是 name1=value1&name2=value2 的形式。
* @return URL 所代表远程资源的响应结果
*/
public static String sendGet(String url, String param) {
String result = "";
BufferedReader in = null;
try {
String urlNameString = url + "?" + param;
System.out.println(urlNameString);
URL realUrl = new URL(urlNameString);
// 打开和URL之间的连接
URLConnection connection = realUrl.openConnection();
// 设置通用的请求属性
connection.setRequestProperty("accept", "*/*");
connection.setRequestProperty("connection", "Keep-Alive");
connection.setRequestProperty("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
// 建立实际的连接
connection.connect();
// 获取所有响应头字段
Map<String, List<String>> map = connection.getHeaderFields();
// 遍历所有的响应头字段
for (String key : map.keySet()) {
System.out.println(key + "--->" + map.get(key));
}
// 定义 BufferedReader输入流来读取URL的响应
in = new BufferedReader(new InputStreamReader(connection.getInputStream()));
String line;
while ((line = in.readLine()) != null) {
result += line;
}
} catch (Exception e) {
System.out.println("发送GET请求出现异常！" + e);
e.printStackTrace();
}
// 使用finally块来关闭输入流
finally {
try {
if (in != null) {
in.close();
}
} catch (Exception e2) {
e2.printStackTrace();
}
}
return result;
}
/**
* 向指定 URL 发送POST方法的请求
*
* @param url
* 发送请求的 URL
* @param param
* 请求参数,请求参数应该是 name1=value1&name2=value2 的形式。
* @return 所代表远程资源的响应结果
*/
public static String sendPost(String url, String param) {
PrintWriter out = null;
BufferedReader in = null;
String result = "";
try {
URL realUrl = new URL(url);
// 打开和URL之间的连接
URLConnection conn = realUrl.openConnection();
// 设置通用的请求属性
conn.setRequestProperty("accept", "*/*");
conn.setRequestProperty("connection", "Keep-Alive");
conn.setRequestProperty("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
// 发送POST请求必须设置如下两行
conn.setDoOutput(true);
conn.setDoInput(true);
// 获取URLConnection对象对应的输出流
out = new PrintWriter(conn.getOutputStream());
// 发送请求参数
out.print(param);
// flush输出流的缓冲
out.flush();
// 定义BufferedReader输入流来读取URL的响应
in = new BufferedReader(new InputStreamReader(conn.getInputStream(), "UTF-8"));
String line;
while ((line = in.readLine()) != null) {
result += line;
}
} catch (Exception e) {
System.out.println("发送 POST 请求出现异常！" + e);
e.printStackTrace();
}
// 使用finally块来关闭输出流、输入流
finally {
try {
if (out != null) {
out.close();
}
if (in != null) {
in.close();
}
} catch (IOException ex) {
ex.printStackTrace();
}
}
return result;
}
/**
* post请求并得到返回结果
*
* @param requestUrl
* @param requestMethod
* @param output
* @return
*/
public static String httpsRequest(String requestUrl, String requestMethod, String output) {
try {
URL url = new URL(requestUrl);
HttpsURLConnection connection = (HttpsURLConnection) url.openConnection();
connection.setDoOutput(true);
connection.setDoInput(true);
connection.setUseCaches(false);
connection.setRequestMethod(requestMethod);
if (null != output) {
OutputStream outputStream = connection.getOutputStream();
outputStream.write(output.getBytes("UTF-8"));
outputStream.close();
}
// 从输入流读取返回内容
InputStream inputStream = connection.getInputStream();
InputStreamReader inputStreamReader = new InputStreamReader(inputStream, "utf-8");
BufferedReader bufferedReader = new BufferedReader(inputStreamReader);
String str = null;
StringBuffer buffer = new StringBuffer();
while ((str = bufferedReader.readLine()) != null) {
buffer.append(str);
}
bufferedReader.close();
inputStreamReader.close();
inputStream.close();
inputStream = null;
connection.disconnect();
return buffer.toString();
} catch (Exception ex) {
ex.printStackTrace();
}
return "";
}
}9.IWXPayDomain类：
/**
* 域名管理，实现主备域名自动切换
*/
public abstract interface IWXPayDomain {
/**
* 上报域名网络状况
* @param domain 域名。 比如：api.mch.weixin.qq.com
* @param elapsedTimeMillis 耗时
* @param ex 网络请求中出现的异常。
* null表示没有异常
* ConnectTimeoutException，表示建立网络连接异常
* UnknownHostException， 表示dns解析异常
*/
abstract void report(final String domain, long elapsedTimeMillis, final Exception ex);
/**
* 获取域名
* @param config 配置
* @return 域名
*/
abstract DomainInfo getDomain(final WXPayConfig config);
static class DomainInfo{
public String domain; //域名
public boolean primaryDomain; //该域名是否为主域名。例如:api.mch.weixin.qq.com为主域名
public DomainInfo(String domain, boolean primaryDomain) {
this.domain = domain;
this.primaryDomain = primaryDomain;
}
@Override
public String toString() {
return "DomainInfo{" +
"domain='" + domain + '\'' +
", primaryDomain=" + primaryDomain +
'}';
}
}
}10.WXPayReport类：
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.config.RegistryBuilder;
import org.apache.http.conn.socket.ConnectionSocketFactory;
import org.apache.http.conn.socket.PlainConnectionSocketFactory;
import org.apache.http.conn.ssl.SSLConnectionSocketFactory;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.impl.conn.BasicHttpClientConnectionManager;
import org.apache.http.util.EntityUtils;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.LinkedBlockingQueue;
import java.util.concurrent.ThreadFactory;
/**
* 交易保障
*/
public class WXPayReport {
public static class ReportInfo {
/**
* 布尔变量使用int。0为false， 1为true。
*/
// 基本信息
private String version = "v1";
private String sdk = WXPayConstants.WXPAYSDK_VERSION;
private String uuid; // 交易的标识
private long timestamp; // 上报时的时间戳，单位秒
private long elapsedTimeMillis; // 耗时，单位 毫秒
// 针对主域名
private String firstDomain; // 第1次请求的域名
private boolean primaryDomain; //是否主域名
private int firstConnectTimeoutMillis; // 第1次请求设置的连接超时时间，单位 毫秒
private int firstReadTimeoutMillis; // 第1次请求设置的读写超时时间，单位 毫秒
private int firstHasDnsError; // 第1次请求是否出现dns问题
private int firstHasConnectTimeout; // 第1次请求是否出现连接超时
private int firstHasReadTimeout; // 第1次请求是否出现连接超时
public ReportInfo(String uuid, long timestamp, long elapsedTimeMillis, String firstDomain, boolean primaryDomain, int firstConnectTimeoutMillis, int firstReadTimeoutMillis, boolean firstHasDnsError, boolean firstHasConnectTimeout, boolean firstHasReadTimeout) {
this.uuid = uuid;
this.timestamp = timestamp;
this.elapsedTimeMillis = elapsedTimeMillis;
this.firstDomain = firstDomain;
this.primaryDomain = primaryDomain;
this.firstConnectTimeoutMillis = firstConnectTimeoutMillis;
this.firstReadTimeoutMillis = firstReadTimeoutMillis;
this.firstHasDnsError = firstHasDnsError?1:0;
this.firstHasConnectTimeout = firstHasConnectTimeout?1:0;
this.firstHasReadTimeout = firstHasReadTimeout?1:0;
}
@Override
public String toString() {
return "ReportInfo{" +
"version='" + version + '\'' +
", sdk='" + sdk + '\'' +
", uuid='" + uuid + '\'' +
", timestamp=" + timestamp +
", elapsedTimeMillis=" + elapsedTimeMillis +
", firstDomain='" + firstDomain + '\'' +
", primaryDomain=" + primaryDomain +
", firstConnectTimeoutMillis=" + firstConnectTimeoutMillis +
", firstReadTimeoutMillis=" + firstReadTimeoutMillis +
", firstHasDnsError=" + firstHasDnsError +
", firstHasConnectTimeout=" + firstHasConnectTimeout +
", firstHasReadTimeout=" + firstHasReadTimeout +
'}';
}
/**
* 转换成 csv 格式
*
* @return
*/
public String toLineString(String key) {
String separator = ",";
Object[] objects = new Object[] {
version, sdk, uuid, timestamp, elapsedTimeMillis,
firstDomain, primaryDomain, firstConnectTimeoutMillis, firstReadTimeoutMillis,
firstHasDnsError, firstHasConnectTimeout, firstHasReadTimeout
};
StringBuffer sb = new StringBuffer();
for(Object obj: objects) {
sb.append(obj).append(separator);
}
try {
String sign = WXPayUtil.HMACSHA256(sb.toString(), key);
sb.append(sign);
return sb.toString();
}
catch (Exception ex) {
return null;
}
}
}
private static final String REPORT_URL = "http://report.mch.weixin.qq.com/wxpay/report/default";
// private static final String REPORT_URL = "http://127.0.0.1:5000/test";
private static final int DEFAULT_CONNECT_TIMEOUT_MS = 6*1000;
private static final int DEFAULT_READ_TIMEOUT_MS = 8*1000;
private LinkedBlockingQueue<String> reportMsgQueue = null;
private WXPayConfig config;
private ExecutorService executorService;
private volatile static WXPayReport INSTANCE;
private WXPayReport(final WXPayConfig config) {
this.config = config;
reportMsgQueue = new LinkedBlockingQueue<String>(config.getReportQueueMaxSize());
// 添加处理线程
executorService = Executors.newFixedThreadPool(config.getReportWorkerNum(), new ThreadFactory() {
public Thread newThread(Runnable r) {
Thread t = Executors.defaultThreadFactory().newThread(r);
t.setDaemon(true);
return t;
}
});
if (config.shouldAutoReport()) {
WXPayUtil.getLogger().info("report worker num: {}", config.getReportWorkerNum());
for (int i = 0; i < config.getReportWorkerNum(); ++i) {
executorService.execute(new Runnable() {
public void run() {
while (true) {
// 先用 take 获取数据
try {
StringBuffer sb = new StringBuffer();
String firstMsg = reportMsgQueue.take();
WXPayUtil.getLogger().info("get first report msg: {}", firstMsg);
String msg = null;
sb.append(firstMsg); //会阻塞至有消息
int remainNum = config.getReportBatchSize() - 1;
for (int j=0; j<remainNum; ++j) {
WXPayUtil.getLogger().info("try get remain report msg");
// msg = reportMsgQueue.poll(); // 不阻塞了
msg = reportMsgQueue.take();
WXPayUtil.getLogger().info("get remain report msg: {}", msg);
if (msg == null) {
break;
}
else {
sb.append("\n");
sb.append(msg);
}
}
// 上报
WXPayReport.httpRequest(sb.toString(), DEFAULT_CONNECT_TIMEOUT_MS, DEFAULT_READ_TIMEOUT_MS);
}
catch (Exception ex) {
WXPayUtil.getLogger().warn("report fail. reason: {}", ex.getMessage());
}
}
}
});
}
}
}
/**
* 单例，双重校验，请在 JDK 1.5及更高版本中使用
*
* @param config
* @return
*/
public static WXPayReport getInstance(WXPayConfig config) {
if (INSTANCE == null) {
synchronized (WXPayReport.class) {
if (INSTANCE == null) {
INSTANCE = new WXPayReport(config);
}
}
}
return INSTANCE;
}
public void report(String uuid, long elapsedTimeMillis,
String firstDomain, boolean primaryDomain, int firstConnectTimeoutMillis, int firstReadTimeoutMillis,
boolean firstHasDnsError, boolean firstHasConnectTimeout, boolean firstHasReadTimeout) {
long currentTimestamp = WXPayUtil.getCurrentTimestamp();
ReportInfo reportInfo = new ReportInfo(uuid, currentTimestamp, elapsedTimeMillis,
firstDomain, primaryDomain, firstConnectTimeoutMillis, firstReadTimeoutMillis,
firstHasDnsError, firstHasConnectTimeout, firstHasReadTimeout);
String data = reportInfo.toLineString(config.getKey());
WXPayUtil.getLogger().info("report {}", data);
if (data != null) {
reportMsgQueue.offer(data);
}
}
@SuppressWarnings("unused")
@Deprecated
private void reportSync(final String data) throws Exception {
httpRequest(data, DEFAULT_CONNECT_TIMEOUT_MS, DEFAULT_READ_TIMEOUT_MS);
}
@SuppressWarnings("unused")
@Deprecated
private void reportAsync(final String data) throws Exception {
new Thread(new Runnable() {
public void run() {
try {
httpRequest(data, DEFAULT_CONNECT_TIMEOUT_MS, DEFAULT_READ_TIMEOUT_MS);
}
catch (Exception ex) {
WXPayUtil.getLogger().warn("report fail. reason: {}", ex.getMessage());
}
}
}).start();
}
/**
* http 请求
* @param data
* @param connectTimeoutMs
* @param readTimeoutMs
* @return
* @throws Exception
*/
private static String httpRequest(String data, int connectTimeoutMs, int readTimeoutMs) throws Exception{
BasicHttpClientConnectionManager connManager;
connManager = new BasicHttpClientConnectionManager(
RegistryBuilder.<ConnectionSocketFactory>create()
.register("http", PlainConnectionSocketFactory.getSocketFactory())
.register("https", SSLConnectionSocketFactory.getSocketFactory())
.build(),
null,
null,
null
);
HttpClient httpClient = HttpClientBuilder.create()
.setConnectionManager(connManager)
.build();
HttpPost httpPost = new HttpPost(REPORT_URL);
RequestConfig requestConfig = RequestConfig.custom().setSocketTimeout(readTimeoutMs).setConnectTimeout(connectTimeoutMs).build();
httpPost.setConfig(requestConfig);
StringEntity postEntity = new StringEntity(data, "UTF-8");
httpPost.addHeader("Content-Type", "text/xml");
httpPost.addHeader("User-Agent", WXPayConstants.USER_AGENT);
httpPost.setEntity(postEntity);
HttpResponse httpResponse = httpClient.execute(httpPost);
HttpEntity httpEntity = httpResponse.getEntity();
return EntityUtils.toString(httpEntity, "UTF-8");
}
}11.WXPayXmlUtil类：
import org.w3c.dom.Document;
import javax.xml.XMLConstants;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
/**
* 2018/7/3
*/
public final class WXPayXmlUtil {
public static DocumentBuilder newDocumentBuilder() throws ParserConfigurationException {
DocumentBuilderFactory documentBuilderFactory = DocumentBuilderFactory.newInstance();
documentBuilderFactory.setFeature("http://apache.org/xml/features/disallow-doctype-decl", true);
documentBuilderFactory.setFeature("http://xml.org/sax/features/external-general-entities", false);
documentBuilderFactory.setFeature("http://xml.org/sax/features/external-parameter-entities", false);
documentBuilderFactory.setFeature("http://apache.org/xml/features/nonvalidating/load-external-dtd", false);
documentBuilderFactory.setFeature(XMLConstants.FEATURE_SECURE_PROCESSING, true);
documentBuilderFactory.setXIncludeAware(false);
documentBuilderFactory.setExpandEntityReferences(false);
return documentBuilderFactory.newDocumentBuilder();
}
public static Document newDocument() throws ParserConfigurationException {
return newDocumentBuilder().newDocument();
}
}12.WXSignUtils类：
import java.util.Iterator;
import java.util.Map;
import java.util.Set;
import com.ldkj.smms.util.MD5Util;
import java.util.Map.Entry;
public class WXSignUtils {
public static String createSign(String characterEncoding, Map<Object, Object> parameters){
StringBuffer sb = new StringBuffer();
Set<Entry<Object, Object>> es = parameters.entrySet();
Iterator<Entry<Object, Object>> it = es.iterator();
while (it.hasNext()) {
Entry<Object, Object> entry = it.next();
String k = (String) entry.getKey();
Object v = entry.getValue();
if (null != v && !"".equals(v) && !"sign".equals(k) && !"key".equals(k)) {
sb.append(k + "=" + v + "&");
}
}
sb.append("key=" + WXPayConstants.PATERNERKEY);
String sign = MD5Util.MD5Encode(sb.toString(), characterEncoding).toUpperCase();
return sign;
}
}二.遇到的问题
（1）NoClassDefFoundError:
Failed resolution of: org.apache.http.conn.ssl.DefaultHostnameVerifier 错误
解决方案：
添加依赖或者jar包：
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpclient</artifactId>
<version>4.4.1</version>
</dependency>链接：https://pan.baidu.com/s/12yT-QNJX0ZYbjyXSnZnEPA
提取码：lwx6
（2）签名不正确：
解决方案：当你用MD5加密时，应该修改官方代码的一个地方（WXPay类）下的一个地方，因为这个地方默认HMACSHA256
（3）记得在微信公众号的微信支付里添加支付域名、相关秘钥，以及一些证书
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