小程序后端获取一些用户信息
先写一个get请求公用方法，后面很多接口都要用到
//根据url获取openId和sessionkey
private String[] requestJson(String url) {
return request(url);
}
private String[] request(String connurl) {
String[] resultStr = new String[]{"", “”};
StringBuilder resultData = new StringBuilder("");
HttpURLConnection conn = null;
try {
URL url = new URL(connurl);
conn = (HttpURLConnection) url.openConnection();
conn.setRequestMethod(“GET”);
conn.setUseCaches(false);
int mTimeout = 10000;
conn.setConnectTimeout(mTimeout);
conn.connect();
int resultCode = conn.getResponseCode();
InputStreamReader in;
if (resultCode == 200) {
in = new InputStreamReader(conn.getInputStream());
BufferedReader buffer = new BufferedReader(in);
String inputLine;
while ((inputLine = buffer.readLine()) != null) {
resultData.append(inputLine);
resultData.append("\n");
}
buffer.close();
in.close();
}
resultStr[0] = resultData.toString();
resultStr[1] = resultCode + “”;
} catch (Exception e) {
e.printStackTrace();
} finally {
if (conn != null) {
conn.disconnect();
}
}
return resultStr;
}各种请求url
// 定义微信解密获取手机号码的接口地址，固定的
private final String wxAppHost = “https://api.weixin.qq.com”;
private final String wxAppPath = “/sns/jscode2session”;
/**
* 获取access_token的url
*
*appid=APPID（公众号唯一标识）
* secret=SECRET（公众号的appsecret）
* code=CODE（第一步获取的code参数）
* grant_type=authorization_code（无需更改）
*
* 返回结果（json格式数据）
* {
* “access_token”: “e1nYJFpZuehfQH1buzHFZLb7onqs_wT1cudSdy9HRlnaMXFtFpRMNFOA0euK6UxPcItrSNbAQVcXDdthbLJYX0MdH1p7-tkZSKuGqBCxVc0”,
* “expires_in”: 7200,
* “refresh_token”: “0iVsXn4O1rBCASbO7hx8VNVUVFM1RP2Q4xS0giegd4jlIsJYOjTJNZ0b4Dsh_xcoB02ZZ3bt0WH0a47LvjIEPjWUnESJCZyl6EtY_xYZdVs”,
* “openid”: “o47Fa0mp9SRTf3eiKmqWm69BjG_8”,
* “scope”: “snsapi_userinfo”
* }
*
* 结果解释
* access_token 网页授权接口调用凭证,注意：此access_token与基础支持的access_token不同
* expires_in access_token接口调用凭证超时时间，单位（秒）
* refresh_token 用户刷新access_token
* openid 用户唯一标识，请注意，在未关注公众号时，用户访问公众号的网页，也会产生一个用户和公众号唯一的OpenID
* scope 用户授权的作用域，使用逗号（,）分隔
* */
private final String getTokenUrl = “https://api.weixin.qq.com/sns/oauth2/”;/**
* 使用access_token获取用户信息的url
*参数说明
* access_token=ACCESS_TOKEN（第2步获取的access_token参数，此access_token与基础支持的access_token不同）
* openid=OPENID（第2步获取的openid参数）
* langlang=zh_CN 返回国家地区语言版本，zh_CN 简体，zh_TW 繁体，en 英语
*
*返回结果（json格式数据）
* {
* "openid": "o47Fa0mp9SRTf3eiKmqWm69BjG_8",
* "nickname": "齐齐",
* "sex": 0,
* "language": "zh_CN",
* "city": "Shaoxing",
* "province": "Zhejiang",
* "country": "CN",
* "headimgurl": "http://wx.qlogo.cn/mmhead/Q3auHgzwzM6kqfcibzzVc8MDGBch53mIgJjWrbKSwkBnzcsWBOMOGlg/0",
* "privilege": []
* }
*
* 结果解释
* openid 用户的唯一标识
* nickname 用户昵称
* sex 用户的性别，值为1时是男性，值为2时是女性，值为0时是未知
* province 用户个人资料填写的省份
* city 普通用户个人资料填写的城市
* country 国家，如中国为CN
* headimgurl 用户头像，最后一个数值代表正方形头像大小（有0、46、64、96、132数值可选，0代表640*640正方形头像），用户没有头像时该项为空
* privilege 用户特权信息，json 数组，如微信沃卡用户为（chinaunicom）
*
*/
private final String getUserInfoUrl = "https://api.weixin.qq.com/sns/userinfo?";1、获取用户信息
@RequestMapping("/getUserinfo")
public Result getUserinfo(@RequestBody Map json){
String code = json.get(“code”).toString();
//获取access_token
String path = getTokenUrl+“appid=”+weixinConfig.getAppid()+"&secret="+weixinConfig.getSecret()+
“&code=”+code+"&grant_type=authorization_code";
try{
String res[] = requestJson(path);
JSONObject jsonObject = JSON.parseObject(res[0]);
String accessToken = jsonObject.getString(“access_token”);
if(ToolUtil.isEmpty(accessToken)){
log.error(“获取access_token异常”);
return Result.failure(“获取access_token失败”);
}
String openId = jsonObject.getString(“openid”);
//获取用户信息
String path2 = getUserInfoUrl+accessToken+"&openid="+openId+"&lang=zh_CN";
String res2[] = requestJson(path2);
JSONObject jsonObject2 = JSON.parseObject(res2[0]);
return Result.success(jsonObject2);
}catch (Exception e){
log.error(“获取用户信息异常，信息如下:”, e);
return Result.failure(“获取用户信息失败”);
}
}/**
*
* 小程序
* 获取openId 和 sessionkey
* @param
* @param
* @param
* @return
* @RequestParam(value = “encrypted”) String encrypted,
* @RequestParam(value = “iv”) String iv,
* @RequestParam(value = “code”) String code
*/
@RequestMapping(value = “/decodePhone”, method = RequestMethod.POST)
public Result getAppPhone(@RequestBody Map json) {
String encrypted = json.get(“encrypted”).toString();
String iv = json.get(“iv”).toString();
String code = json.get(“code”).toString();
JSONObject returnObject = new JSONObject();
try {
returnObject = decodeWxAppPhone(encrypted, iv, code);
if(ToolUtil.isEmpty(returnObject)){
return Result.failure(“无法获取sessionkey”);
}
return Result.success(returnObject);
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return Result.failure(“无法获取sessionkey”);
}获取手机号方法
private JSONObject decodeWxAppPhone(String encrypted, String iv, String code){String path =wxAppHost+
wxAppPath
+ "?appid="
+ weixinConfig.getAppid()
+ "&secret="
+ weixinConfig.getSecret()
+ "&js_code="
+ code
+ "&grant_type=authorization_code&connect_redirect=1#wechat_redirect";
try {
// 向微信服务器发送get请求获取加密了的内容// HttpResponse response = HttpUtils.doGet(wxAppHost, path, “GET”, null, null);
// String jsonStr = response.getEntity();
String res[] = requestJson(path);
JSONObject jsonObject = JSON.parseObject(res[0]);
String sessionkey = jsonObject.getString(“session_key”); // 解密
String openId = jsonObject.getString(“openid”);
byte[] encrypData = Base64Utils.decodeFromString(encrypted);
byte[] ivData = Base64Utils.decodeFromString(iv);
byte[] sessionKey = Base64Utils.decodeFromString(sessionkey);
AlgorithmParameterSpec ivSpec = new IvParameterSpec(ivData);
Cipher cipher = Cipher.getInstance(“AES/CBC/PKCS5Padding”);
SecretKeySpec keySpec = new SecretKeySpec(sessionKey, “AES”);
cipher.init(Cipher.DECRYPT_MODE, keySpec, ivSpec);
String resultString = new String(cipher.doFinal(encrypData), “UTF-8”);
JSONObject object = JSONObject.parseObject(resultString); // 拿到手机号码
String phone = object.getString(“phoneNumber”); // 返回手机号码
JSONObject returnObject = new JSONObject();
returnObject.put(“phone”, phone);returnObject.put("openid",openId);
return returnObject;
} catch (Exception e) {
log.error("微信小程序手机号码解密异常，信息如下:", e);
return null;
}
/**
* 小程序获取 unionid
* @param json
* @return
*/
@RequestMapping("/getUnionid")
public Result getUnionid(@RequestBody Map json){
String encrypted = json.get("encrypted").toString();
String iv = json.get("iv").toString();
String code = json.get("code").toString();
JSONObject returnObject = new JSONObject();
try {
returnObject = getWeChatUserinfo(encrypted, iv, code);
if(ToolUtil.isEmpty(returnObject)){
return Result.failure("获取失败");
}
String unionId = returnObject.getString("unionId"); // 返回手机号码
JSONObject object = new JSONObject();
object.put("unionId", unionId);
return Result.success(object);
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return Result.failure("获取失败");
}
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