zhi
引入pom文件
<dependency>
<groupId>commons-codec</groupId>
<artifactId>commons-codec</artifactId>
<version>1.9</version>
</dependency>package com.example.controller;
import com.example.service.IConfigService;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import javax.servlet.ServletInputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.PrintWriter;
/**
* 控制层
*/
@Slf4j
@RestController
@RequestMapping(value = "system")
public class SystemController {
@Autowired
private IConfigService configService;
/**
* 验证通用开发参数及应用回调
* @param: request
* @param: response
* @returns: void
*/
@ApiOperation(value = "验证通用开发参数及应用回调")
@GetMapping(value = "getEchostr")
public void doGetCallback(HttpServletRequest request, HttpServletResponse response) throws Exception {
// 微信加密签名
String msgSignature = request.getParameter("msg_signature");
// 时间戳
String timestamp = request.getParameter("timestamp");
// 随机数
String nonce = request.getParameter("nonce");
// 随机字符串
// 如果是刷新，需返回原echostr
String echoStr = request.getParameter("echostr");
String sEchoStr= "";
PrintWriter out;
log.debug("msgSignature: " + msgSignature+"timestamp="+timestamp+"nonce="+nonce+"echoStr="+echoStr);
try {
sEchoStr = configService.doGetCallback(msgSignature,timestamp,nonce,echoStr); //需要返回的明文;
log.debug("doGetCallback-> echostr: " + sEchoStr);
// 验证URL成功，将sEchoStr返回
out = response.getWriter();
out.print(sEchoStr);
} catch (Exception e) {
//验证URL失败，错误原因请查看异常
e.printStackTrace();
}
}
/**
* 刷新ticket，AuthCode
*/
@ApiOperation(value = "刷新ticket，AuthCode")
@PostMapping(value = "getEchostr")
public String doPostCallback(HttpServletRequest request) throws Exception {
// 微信加密签名
String msgSignature = request.getParameter("msg_signature");
// 时间戳
String timestamp = request.getParameter("timestamp");
// 随机数
String nonce = request.getParameter("nonce");
// 类型
String type = request.getParameter("type");
// 企业id
String corpId = request.getParameter("corpid");
ServletInputStream in = request.getInputStream();
// 刷新ticket，AuthCode
String success = configService.doPostCallback(msgSignature, timestamp, nonce, type, corpId, in);
return success;
}
}package com.example.service;
import javax.servlet.ServletInputStream;
/**
* 企业微信第三方服务service
*/
public interface IConfigService {
/**
* 验证通用开发参数及应用回调
* @returns: java.lang.String
*/
String doGetCallback(String msgSignature, String timestamp, String nonce, String echoStr);
/**
* 获取SuiteTicket，AuthCode
*/
String doPostCallback(String msgSignature, String timestamp, String nonce, String type, String corpId, ServletInputStream in);
}package com.example.service.impl;
import com.example.qvs.AesException;
import com.example.qvs.WXBizMsgCrypt;
import com.example.qvs.WeChatConstants;
import com.example.qvs.WxUtil;
import com.example.service.IConfigService;
import io.github.classgraph.json.JSONUtils;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Service;
import javax.servlet.ServletInputStream;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.Map;
/**
* TODO 类描述
*/
@Slf4j
@Service
public class ConfigServiceImpl implements IConfigService {
/**
* 验证通用开发参数及应用回调
* @returns: java.lang.String
*/
@Override
public String doGetCallback(String msgSignature, String timestamp, String nonce, String echoStr) {
//需要返回的明文
String sEchoStr="";
try {
log.debug(WeChatConstants.TOKENS, WeChatConstants.ENCODING_AES_KEY, WeChatConstants.CORP_ID);
WXBizMsgCrypt wxcpt = new WXBizMsgCrypt(WeChatConstants.TOKENS, WeChatConstants.ENCODING_AES_KEY, WeChatConstants.CORP_ID);
sEchoStr = wxcpt.VerifyURL(msgSignature, timestamp, nonce, echoStr);
} catch (AesException e) {
e.printStackTrace();
}
return sEchoStr;
}
/**
* 获取SuiteTicket，AuthCode
* @param: msgSignature 微信加密签名
* @param: timestamp 时间戳
* @param: nonce 随机数
* @param: type 类型
* @param: corpId 企业id
* @param: in
* @returns: java.lang.String
*/
@Override
public String doPostCallback(String msgSignature, String timestamp, String nonce, String type, String corpId, ServletInputStream in) {
String id = "";
// 访问应用和企业回调传不同的ID
if(type!=null && type.equals("data")){
id = corpId;
log.debug("======corpId==="+id);
} else {
id = WeChatConstants.SUITE_ID;
log.debug("======SuiteId===" + id);
}
try {
WXBizMsgCrypt wxcpt = new WXBizMsgCrypt(WeChatConstants.TOKENS, WeChatConstants.ENCODING_AES_KEY, id);
String postData=""; // 密文，对应POST请求的数据
//1.获取加密的请求消息：使用输入流获得加密请求消息postData
BufferedReader reader = new BufferedReader(new InputStreamReader(in));
String tempStr = ""; //作为输出字符串的临时串，用于判断是否读取完毕
while(null != (tempStr=reader.readLine())){
postData+=tempStr;
}
log.debug("====msg_signature===="+msgSignature+"====timestamp==="+timestamp+"====nonce==="+nonce+"====postData==="+postData);
String suiteXml = wxcpt.DecryptMsg(msgSignature, timestamp, nonce, postData);
log.debug("suiteXml: " + suiteXml);
Map suiteMap = WxUtil.parseXml(suiteXml);
log.debug("==suiteMap=="+ suiteMap.toString());
if(suiteMap.get("SuiteTicket") != null) {
String suiteTicket = (String) suiteMap.get("SuiteTicket");
log.debug("====SuiteTicket=====" + suiteTicket);
} else if(suiteMap.get("AuthCode") != null){
String authCode = (String) suiteMap.get("AuthCode");
log.debug("doPostValid->AuthCode:" + authCode);
}
} catch (Exception e) {
e.printStackTrace();
}
return "success";
}
}package com.example.qvs;
@SuppressWarnings("serial")
public class AesException extends Exception {
public final static int OK = 0;
public final static int ValidateSignatureError = -40001;
public final static int ParseXmlError = -40002;
public final static int ComputeSignatureError = -40003;
public final static int IllegalAesKey = -40004;
public final static int ValidateCorpidError = -40005;
public final static int EncryptAESError = -40006;
public final static int DecryptAESError = -40007;
public final static int IllegalBuffer = -40008;
//public final static int EncodeBase64Error = -40009;
//public final static int DecodeBase64Error = -40010;
//public final static int GenReturnXmlError = -40011;
private int code;
private static String getMessage(int code) {
switch (code) {
case ValidateSignatureError:
return "签名验证错误";
case ParseXmlError:
return "xml解析失败";
case ComputeSignatureError:
return "sha加密生成签名失败";
case IllegalAesKey:
return "SymmetricKey非法";
case ValidateCorpidError:
return "corpid校验失败";
case EncryptAESError:
return "aes加密失败";
case DecryptAESError:
return "aes解密失败";
case IllegalBuffer:
return "解密后得到的buffer非法";
// case EncodeBase64Error:
// return "base64加密错误";
// case DecodeBase64Error:
// return "base64解密错误";
// case GenReturnXmlError:
// return "xml生成失败";
default:
return null; // cannot be
}
}
public int getCode() {
return code;
}
AesException(int code) {
super(getMessage(code));
this.code = code;
}
}package com.example.qvs;
import java.util.ArrayList;
class ByteGroup {
ArrayList<Byte> byteContainer = new ArrayList<Byte>();
public byte[] toBytes() {
byte[] bytes = new byte[byteContainer.size()];
for (int i = 0; i < byteContainer.size(); i++) {
bytes[i] = byteContainer.get(i);
}
return bytes;
}
public ByteGroup addBytes(byte[] bytes) {
for (byte b : bytes) {
byteContainer.add(b);
}
return this;
}
public int size() {
return byteContainer.size();
}
}/**
* 对公众平台发送给公众账号的消息加解密示例代码.
*
* @copyright Copyright (c) 1998-2014 Tencent Inc.
*/
// ------------------------------------------------------------------------
package com.example.qvs;
import java.nio.charset.Charset;
import java.util.Arrays;
/**
* 提供基于PKCS7算法的加解密接口.
*/
class PKCS7Encoder {
static Charset CHARSET = Charset.forName("utf-8");
static int BLOCK_SIZE = 32;
/**
* 获得对明文进行补位填充的字节.
*
* @param count 需要进行填充补位操作的明文字节个数
* @return 补齐用的字节数组
*/
static byte[] encode(int count) {
// 计算需要填充的位数
int amountToPad = BLOCK_SIZE - (count % BLOCK_SIZE);
if (amountToPad == 0) {
amountToPad = BLOCK_SIZE;
}
// 获得补位所用的字符
char padChr = chr(amountToPad);
String tmp = new String();
for (int index = 0; index < amountToPad; index++) {
tmp += padChr;
}
return tmp.getBytes(CHARSET);
}
/**
* 删除解密后明文的补位字符
*
* @param decrypted 解密后的明文
* @return 删除补位字符后的明文
*/
static byte[] decode(byte[] decrypted) {
int pad = (int) decrypted[decrypted.length - 1];
if (pad < 1 || pad > 32) {
pad = 0;
}
return Arrays.copyOfRange(decrypted, 0, decrypted.length - pad);
}
/**
* 将数字转化成ASCII码对应的字符，用于对明文进行补码
*
* @param a 需要转化的数字
* @return 转化得到的字符
*/
static char chr(int a) {
byte target = (byte) (a & 0xFF);
return (char) target;
}
}/**
* 对公众平台发送给公众账号的消息加解密示例代码.
*
* @copyright Copyright (c) 1998-2014 Tencent Inc.
*/
// ------------------------------------------------------------------------
package com.example.qvs;
import java.security.MessageDigest;
import java.util.Arrays;
/**
* SHA1 class
*
* 计算公众平台的消息签名接口.
*/
class SHA1 {
/**
* 用SHA1算法生成安全签名
* @param token 票据
* @param timestamp 时间戳
* @param nonce 随机字符串
* @param encrypt 密文
* @return 安全签名
* @throws AesException
*/
public static String getSHA1(String token, String timestamp, String nonce, String encrypt) throws AesException
{
try {
String[] array = new String[] { token, timestamp, nonce, encrypt };
StringBuffer sb = new StringBuffer();
// 字符串排序
Arrays.sort(array);
for (int i = 0; i < 4; i++) {
sb.append(array[i]);
}
String str = sb.toString();
// SHA1签名生成
MessageDigest md = MessageDigest.getInstance("SHA-1");
md.update(str.getBytes());
byte[] digest = md.digest();
StringBuffer hexstr = new StringBuffer();
String shaHex = "";
for (int i = 0; i < digest.length; i++) {
shaHex = Integer.toHexString(digest[i] & 0xFF);
if (shaHex.length() < 2) {
hexstr.append(0);
}
hexstr.append(shaHex);
}
return hexstr.toString();
} catch (Exception e) {
e.printStackTrace();
throw new AesException(AesException.ComputeSignatureError);
}
}
}package com.example.qvs;
/**
* 企业微信
*/
public class WeChatConstants {
// 企业微信授权码获取时间
public static final Long EXPIRES_IN = 24 * 60 * 60 * 1000L;
//24 * 60 * 60 * 1000L 7200L * 1000
/**
* 服务商CorpID
*/
public static final String CORP_ID = "wwe077b310e3faa834";
/**
* 服务商身份的调用凭证
*/
public static final String PROVIDER_SECRET = "12sxxNX6lwwu_YjgtoZjZae2ePDo6SO6wrD_EvhTZ2_cZSR7i3sPW76_c4Bxw46BGyf ";
/**
* 应用的唯一身份标识
*/
public static final String SUITE_ID = "ww8712853b3230af4a8a086";
/**
* 应用的调用身份密钥
*/
public static final String SUITE_SECRET = "u9QHw32rl8nBh3231yAtV7I-ROIAYXKYAF12TJ8LPU_ARgBWew";
// 回调相关
/**
* 回调/通用开发参数Token, 两者解密算法一样，所以为方便设为一样
*/
public static final String TOKENS = "BTyvB7H1J11231qpfTNeCr323YYkkG";
/**
* 回调/通用开发参数EncodingAESKey, 两者解密算法一样，所以为方便设为一样
*/
public static final String ENCODING_AES_KEY = "Dmaot7OdDn4ysvrwqOXSJsPb7UIXMk1uuuLuOCwe1tV";
}package com.example.qvs;
/**
* 企业微信工具类
*/
public class WeChatUtils {
/**
* 第三方应用api start
*/
// 获取第三方应用凭证
public final static String THIRD_BUS_WECHAT_SUITE_TOKEN = "https://qyapi.weixin.qq.com/cgi-bin/service/get_suite_token";
// 获取企业永久授权码
public final static String THIRD_BUS_WECHAT_ACCESS_TOKEN = "https://qyapi.weixin.qq.com/cgi-bin/service/get_permanent_code?suite_access_token=SUITE_ACCESS_TOKEN";
// 第三方 构造扫码登录链接
public final static String THIRD_BUS_WECHAT_LOGIN = "https://open.work.weixin.qq.com/wwopen/sso/3rd_qrConnect?appid=CORPID&redirect_uri=REDIRECT_URI&state=web_login&usertype=member";
// 第三方 获取登录用户信息 POST
public final static String THIRD_BUS_WECHAT_GET_LOGIN_INFO = "https://qyapi.weixin.qq.com/cgi-bin/service/get_login_info?access_token=PROVIDER_ACCESS_TOKEN";
// 第三方 构造网页授权链接
public final static String THIRD_BUS_WECHAT_AUTHORIZE_URL = "https://open.weixin.qq.com/connect/oauth2/authorize?appid=APPID&redirect_uri=REDIRECT_URI&response_type=code&scope=snsapi_privateinfo&state=STATE#wechat_redirect";
// 第三方 获取访问用户身份 GET
public final static String THIRD_BUS_WECHAT_GET_USER_INFO = "https://qyapi.weixin.qq.com/cgi-bin/service/getuserinfo3rd?suite_access_token=SUITE_TOKEN&code=CODE";
// 第三方 获取访问用户敏感信息 post
public final static String THIRD_BUS_WECHAT_GET_USER_DETAIL3RD = "https://qyapi.weixin.qq.com/cgi-bin/service/getuserdetail3rd?suite_access_token=SUITE_ACCESS_TOKEN";
// 第三方 获取部门列表
public final static String THIRD_BUS_WECHAT_DEPART_LIST = "https://qyapi.weixin.qq.com/cgi-bin/department/list?access_token=ACCESS_TOKEN&id=ID";
// 第三方 获取部门成员
public final static String THIRD_BUS_WECHAT_DEPART_USER = "https://qyapi.weixin.qq.com/cgi-bin/user/simplelist?access_token=ACCESS_TOKEN&department_id=DEPARTMENT_ID&fetch_child=FETCH_CHILD";
// 第三方 获取部门成员详情
public final static String THIRD_BUS_WECHAT_DEPART_USER_DETAIL = "https://qyapi.weixin.qq.com/cgi-bin/user/list?access_token=ACCESS_TOKEN&department_id=DEPARTMENT_ID&fetch_child=FETCH_CHILD";
// 第三方 读取成员 GET
public final static String THIRD_BUS_WECHAT_GET_USER = "https://qyapi.weixin.qq.com/cgi-bin/user/get?access_token=ACCESS_TOKEN&userid=USERID";
// 服务商的token
public final static String THIRD_BUS_WECHAT_GET_PROVIDER_TOKEN = "https://qyapi.weixin.qq.com/cgi-bin/service/get_provider_token";
// 获取企业凭证
public final static String THIRD_BUS_WECHAT_GET_CORP_TOKEN = "https://qyapi.weixin.qq.com/cgi-bin/service/get_corp_token?suite_access_token=SUITE_ACCESS_TOKEN";
// 发送应用消息
public final static String THIRD_BUS_WECHAT_SEND = "https://qyapi.weixin.qq.com/cgi-bin/message/send?access_token=ACCESS_TOKEN";
// 获取应用的jsapi_ticket
public final static String THIRD_BUS_GET_JSAPI_TICKET = "https://qyapi.weixin.qq.com/cgi-bin/ticket/get?access_token=ACCESS_TOKEN&type=agent_config";
// 获取企业的jsapi_ticket
public final static String THIRD_BUS_GET_JSAPI_TICKET_BUS = "https://qyapi.weixin.qq.com/cgi-bin/get_jsapi_ticket?access_token=ACCESS_TOKEN";
/**
* 第三方应用api end
*/
}/**
* 对公众平台发送给公众账号的消息加解密示例代码.
*
* @copyright Copyright (c) 1998-2014 Tencent Inc.
*/
// ------------------------------------------------------------------------
/**
* 针对org.apache.commons.codec.binary.Base64，
* 需要导入架包commons-codec-1.9（或commons-codec-1.8等其他版本）
* 官方下载地址：http://commons.apache.org/proper/commons-codec/download_codec.cgi
*/
package com.example.qvs;
import java.nio.charset.Charset;
import java.util.Arrays;
import java.util.Random;
import javax.crypto.Cipher;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;
import org.apache.commons.codec.binary.Base64;
/**
* 提供接收和推送给公众平台消息的加解密接口(UTF8编码的字符串).
* <ol>
* <li>第三方回复加密消息给公众平台</li>
* <li>第三方收到公众平台发送的消息，验证消息的安全性，并对消息进行解密。</li>
* </ol>
* 说明：异常java.security.InvalidKeyException:illegal Key Size的解决方案
* <ol>
* <li>在官方网站下载JCE无限制权限策略文件（JDK7的下载地址：
* http://www.oracle.com/technetwork/java/javase/downloads/jce-7-download-432124.html</li>
* <li>下载后解压，可以看到local_policy.jar和US_export_policy.jar以及readme.txt</li>
* <li>如果安装了JRE，将两个jar文件放到%JRE_HOME%\lib\security目录下覆盖原来的文件</li>
* <li>如果安装了JDK，将两个jar文件放到%JDK_HOME%\jre\lib\security目录下覆盖原来文件</li>
* </ol>
*/
public class WXBizMsgCrypt {
static Charset CHARSET = Charset.forName("utf-8");
Base64 base64 = new Base64();
byte[] aesKey;
String token;
String corpId;
/**
* 构造函数
* @param token 公众平台上，开发者设置的token
* @param encodingAesKey 公众平台上，开发者设置的EncodingAESKey
* @param corpId 企业的corpid
*
* @throws AesException 执行失败，请查看该异常的错误码和具体的错误信息
*/
public WXBizMsgCrypt(String token, String encodingAesKey, String corpId) throws AesException {
if (encodingAesKey.length() != 43) {
throw new AesException(AesException.IllegalAesKey);
}
this.token = token;
this.corpId = corpId;
aesKey = Base64.decodeBase64(encodingAesKey + "=");
}
// 生成4个字节的网络字节序
byte[] getNetworkBytesOrder(int sourceNumber) {
byte[] orderBytes = new byte[4];
orderBytes[3] = (byte) (sourceNumber & 0xFF);
orderBytes[2] = (byte) (sourceNumber >> 8 & 0xFF);
orderBytes[1] = (byte) (sourceNumber >> 16 & 0xFF);
orderBytes[0] = (byte) (sourceNumber >> 24 & 0xFF);
return orderBytes;
}
// 还原4个字节的网络字节序
int recoverNetworkBytesOrder(byte[] orderBytes) {
int sourceNumber = 0;
for (int i = 0; i < 4; i++) {
sourceNumber <<= 8;
sourceNumber |= orderBytes[i] & 0xff;
}
return sourceNumber;
}
// 随机生成16位字符串
String getRandomStr() {
String base = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
Random random = new Random();
StringBuffer sb = new StringBuffer();
for (int i = 0; i < 16; i++) {
int number = random.nextInt(base.length());
sb.append(base.charAt(number));
}
return sb.toString();
}
/**
* 对明文进行加密.
*
* @param text 需要加密的明文
* @return 加密后base64编码的字符串
* @throws AesException aes加密失败
*/
String encrypt(String randomStr, String text) throws AesException {
ByteGroup byteCollector = new ByteGroup();
byte[] randomStrBytes = randomStr.getBytes(CHARSET);
byte[] textBytes = text.getBytes(CHARSET);
byte[] networkBytesOrder = getNetworkBytesOrder(textBytes.length);
byte[] corpidBytes = corpId.getBytes(CHARSET);
// randomStr + networkBytesOrder + text + corpid
byteCollector.addBytes(randomStrBytes);
byteCollector.addBytes(networkBytesOrder);
byteCollector.addBytes(textBytes);
byteCollector.addBytes(corpidBytes);
// ... + pad: 使用自定义的填充方式对明文进行补位填充
byte[] padBytes = PKCS7Encoder.encode(byteCollector.size());
byteCollector.addBytes(padBytes);
// 获得最终的字节流, 未加密
byte[] unencrypted = byteCollector.toBytes();
try {
// 设置加密模式为AES的CBC模式
Cipher cipher = Cipher.getInstance("AES/CBC/NoPadding");
SecretKeySpec keySpec = new SecretKeySpec(aesKey, "AES");
IvParameterSpec iv = new IvParameterSpec(aesKey, 0, 16);
cipher.init(Cipher.ENCRYPT_MODE, keySpec, iv);
// 加密
byte[] encrypted = cipher.doFinal(unencrypted);
// 使用BASE64对加密后的字符串进行编码
String base64Encrypted = base64.encodeToString(encrypted);
return base64Encrypted;
} catch (Exception e) {
e.printStackTrace();
throw new AesException(AesException.EncryptAESError);
}
}
/**
* 对密文进行解密.
*
* @param text 需要解密的密文
* @return 解密得到的明文
* @throws AesException aes解密失败
*/
String decrypt(String text) throws AesException {
byte[] original;
try {
// 设置解密模式为AES的CBC模式
Cipher cipher = Cipher.getInstance("AES/CBC/NoPadding");
SecretKeySpec key_spec = new SecretKeySpec(aesKey, "AES");
IvParameterSpec iv = new IvParameterSpec(Arrays.copyOfRange(aesKey, 0, 16));
cipher.init(Cipher.DECRYPT_MODE, key_spec, iv);
// 使用BASE64对密文进行解码
byte[] encrypted = Base64.decodeBase64(text);
// 解密
original = cipher.doFinal(encrypted);
} catch (Exception e) {
e.printStackTrace();
throw new AesException(AesException.DecryptAESError);
}
String xmlContent, from_corpid;
try {
// 去除补位字符
byte[] bytes = PKCS7Encoder.decode(original);
// 分离16位随机字符串,网络字节序和corpId
byte[] networkOrder = Arrays.copyOfRange(bytes, 16, 20);
int xmlLength = recoverNetworkBytesOrder(networkOrder);
xmlContent = new String(Arrays.copyOfRange(bytes, 20, 20 + xmlLength), CHARSET);
from_corpid = new String(Arrays.copyOfRange(bytes, 20 + xmlLength, bytes.length),
CHARSET);
} catch (Exception e) {
e.printStackTrace();
throw new AesException(AesException.IllegalBuffer);
}
// corpid不相同的情况
if (!from_corpid.equals(corpId)) {
throw new AesException(AesException.ValidateCorpidError);
}
return xmlContent;
}
/**
* 将公众平台回复用户的消息加密打包.
* <ol>
* <li>对要发送的消息进行AES-CBC加密</li>
* <li>生成安全签名</li>
* <li>将消息密文和安全签名打包成xml格式</li>
* </ol>
*
* @param replyMsg 公众平台待回复用户的消息，xml格式的字符串
* @param timeStamp 时间戳，可以自己生成，也可以用URL参数的timestamp
* @param nonce 随机串，可以自己生成，也可以用URL参数的nonce
*
* @return 加密后的可以直接回复用户的密文，包括msg_signature, timestamp, nonce, encrypt的xml格式的字符串
* @throws AesException 执行失败，请查看该异常的错误码和具体的错误信息
*/
public String EncryptMsg(String replyMsg, String timeStamp, String nonce) throws AesException {
// 加密
String encrypt = encrypt(getRandomStr(), replyMsg);
// 生成安全签名
if (timeStamp == "") {
timeStamp = Long.toString(System.currentTimeMillis());
}
String signature = SHA1.getSHA1(token, timeStamp, nonce, encrypt);
// System.out.println("发送给平台的签名是: " + signature[1].toString());
// 生成发送的xml
String result = XMLParse.generate(encrypt, signature, timeStamp, nonce);
return result;
}
/**
* 检验消息的真实性，并且获取解密后的明文.
* <ol>
* <li>利用收到的密文生成安全签名，进行签名验证</li>
* <li>若验证通过，则提取xml中的加密消息</li>
* <li>对消息进行解密</li>
* </ol>
*
* @param msgSignature 签名串，对应URL参数的msg_signature
* @param timeStamp 时间戳，对应URL参数的timestamp
* @param nonce 随机串，对应URL参数的nonce
* @param postData 密文，对应POST请求的数据
*
* @return 解密后的原文
* @throws AesException 执行失败，请查看该异常的错误码和具体的错误信息
*/
public String DecryptMsg(String msgSignature, String timeStamp, String nonce, String postData)
throws AesException {
// 密钥，公众账号的app secret
// 提取密文
Object[] encrypt = XMLParse.extract(postData);
// 验证安全签名
String signature = SHA1.getSHA1(token, timeStamp, nonce, encrypt[1].toString());
// 和URL中的签名比较是否相等
// System.out.println("第三方收到URL中的签名：" + msg_sign);
// System.out.println("第三方校验签名：" + signature);
if (!signature.equals(msgSignature)) {
throw new AesException(AesException.ValidateSignatureError);
}
// 解密
String result = decrypt(encrypt[1].toString());
return result;
}
/**
* 验证URL
* @param msgSignature 签名串，对应URL参数的msg_signature
* @param timeStamp 时间戳，对应URL参数的timestamp
* @param nonce 随机串，对应URL参数的nonce
* @param echoStr 随机串，对应URL参数的echostr
*
* @return 解密之后的echostr
* @throws AesException 执行失败，请查看该异常的错误码和具体的错误信息
*/
public String VerifyURL(String msgSignature, String timeStamp, String nonce, String echoStr)
throws AesException {
String signature = SHA1.getSHA1(token, timeStamp, nonce, echoStr);
if (!signature.equals(msgSignature)) {
throw new AesException(AesException.ValidateSignatureError);
}
String result = decrypt(echoStr);
return result;
}
}/**
* 对公众平台发送给公众账号的消息加解密示例代码.
*
* @copyright Copyright (c) 1998-2014 Tencent Inc.
*/
// ------------------------------------------------------------------------
package com.example.qvs;
import java.io.StringReader;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.NodeList;
import org.xml.sax.InputSource;
/**
* XMLParse class
*
* 提供提取消息格式中的密文及生成回复消息格式的接口.
*/
class XMLParse {
/**
* 提取出xml数据包中的加密消息
* @param xmltext 待提取的xml字符串
* @return 提取出的加密消息字符串
* @throws AesException
*/
public static Object[] extract(String xmltext) throws AesException {
Object[] result = new Object[3];
try {
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
DocumentBuilder db = dbf.newDocumentBuilder();
StringReader sr = new StringReader(xmltext);
InputSource is = new InputSource(sr);
Document document = db.parse(is);
Element root = document.getDocumentElement();
NodeList nodelist1 = root.getElementsByTagName("Encrypt");
NodeList nodelist2 = root.getElementsByTagName("ToUserName");
result[0] = 0;
result[1] = nodelist1.item(0).getTextContent();
result[2] = nodelist2.item(0).getTextContent();
return result;
} catch (Exception e) {
e.printStackTrace();
throw new AesException(AesException.ParseXmlError);
}
}
/**
* 生成xml消息
* @param encrypt 加密后的消息密文
* @param signature 安全签名
* @param timestamp 时间戳
* @param nonce 随机字符串
* @return 生成的xml字符串
*/
public static String generate(String encrypt, String signature, String timestamp, String nonce) {
String format = "<xml>\n" + "<Encrypt><![CDATA[%1$s]]></Encrypt>\n"
+ "<MsgSignature><![CDATA[%2$s]]></MsgSignature>\n"
+ "<TimeStamp>%3$s</TimeStamp>\n" + "<Nonce><![CDATA[%4$s]]></Nonce>\n" + "</xml>";
return String.format(format, encrypt, signature, timestamp, nonce);
}
}package com.example.qvs;
import org.dom4j.Document;
import org.dom4j.DocumentHelper;
import org.dom4j.Element;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
public class WxUtil {
/**
* @desc ：2.解析微信发来的请求（xmlStr）,获取请求参数
*
* @param xmlStr
* @return
* @throws Exception Map<String,String>
*/
public static Map<String, String> parseXml(String xmlStr) throws Exception {
// 将解析结果存储在HashMap中
Map<String, String> map = new HashMap<String, String>();
//1.将字符串转为Document
Document document = DocumentHelper.parseText(xmlStr);
//2.获取根元素的所有子节点
// 得到xml根元素
Element root = document.getRootElement();
// 得到根元素的所有子节点
List<Element> elementList = root.elements();
//3.遍历所有子节点
for (Element e : elementList){
map.put(e.getName(), e.getText());
}
return map;
}
}
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