//1、调用微信登录接口，获取code
wx.login({success: function (r) {var code = r.code;//登录凭证if (code) {//2、调用获取用户信息接口//...} else {console.log('获取用户登录态失败！' + r.errMsg)}},fail: function () {callback(false)}
})

//1、调用微信登录接口，获取code
wx.login({success: function (r) {var code = r.code;//登录凭证if (code) {//2、调用获取用户信息接口wx.getUserInfo({success: function (res) {console.log({encryptedData: res.encryptedData, iv: res.iv, code: code})//3.解密用户信息 获取unionId//...},fail: function () {console.log('获取用户信息失败')}})} else {console.log('获取用户登录态失败！' + r.errMsg)}},fail: function () {callback(false)}
})

//1、调用微信登录接口，获取code
wx.login({success: function (r) {var code = r.code;//登录凭证if (code) {//2、调用获取用户信息接口wx.getUserInfo({success: function (res) {console.log({encryptedData: res.encryptedData, iv: res.iv, code: code})//3.请求自己的服务器，解密用户信息 获取unionId等加密信息wx.request({url: 'https://xxxx.com/wxsp/decodeUserInfo',//自己的服务接口地址method: 'post',header: {'content-type': 'application/x-www-form-urlencoded'},data: {encryptedData: res.encryptedData, iv: res.iv, code: code},success: function (data) {//4.解密成功后 获取自己服务器返回的结果if (data.data.status == 1) {var userInfo_ = data.data.userInfo;console.log(userInfo_)} else {console.log('解密失败')}},fail: function () {console.log('系统错误')}})},fail: function () {console.log('获取用户信息失败')}})} else {console.log('获取用户登录态失败！' + r.errMsg)}},fail: function () {console.log('登陆失败')}
})

/**
     * 解密用户敏感数据
     *
     * @param encryptedData 明文,加密数据
     * @param iv            加密算法的初始向量
     * @param code          用户允许登录后，回调内容会带上 code（有效期五分钟），开发者需要将 code 发送到开发者服务器后台，使用code 换取 session_key api，将 code 换成 openid 和 session_key
     * @return
     */@ResponseBody@RequestMapping(value = "/decodeUserInfo", method = RequestMethod.POST)public Map decodeUserInfo(String encryptedData, String iv, String code) {Map map = new HashMap();//登录凭证不能为空if (code == null || code.length() == 0) {map.put("status", 0);map.put("msg", "code 不能为空");return map;}//小程序唯一标识   (在微信小程序管理后台获取)String wxspAppid = "xxxxxxxxxxxxxx";//小程序的 app secret (在微信小程序管理后台获取)String wxspSecret = "xxxxxxxxxxxxxx";//授权（必填）String grant_type = "authorization_code"; 1、向微信服务器 使用登录凭证 code 获取 session_key 和 openid //请求参数String params = "appid=" + wxspAppid + "&secret=" + wxspSecret + "&js_code=" + code + "&grant_type=" + grant_type;//发送请求String sr = HttpRequest.sendGet("https://api.weixin.qq.com/sns/jscode2session", params);//解析相应内容（转换成json对象）JSONObject json = JSONObject.fromObject(sr);//获取会话密钥（session_key）String session_key = json.get("session_key").toString();//用户的唯一标识（openid）String openid = (String) json.get("openid"); 2、对encryptedData加密数据进行AES解密 try {String result = AesCbcUtil.decrypt(encryptedData, session_key, iv, "UTF-8");if (null != result && result.length() > 0) {map.put("status", 1);map.put("msg", "解密成功");JSONObject userInfoJSON = JSONObject.fromObject(result);Map userInfo = new HashMap();userInfo.put("openId", userInfoJSON.get("openId"));userInfo.put("nickName", userInfoJSON.get("nickName"));userInfo.put("gender", userInfoJSON.get("gender"));userInfo.put("city", userInfoJSON.get("city"));userInfo.put("province", userInfoJSON.get("province"));userInfo.put("country", userInfoJSON.get("country"));userInfo.put("avatarUrl", userInfoJSON.get("avatarUrl"));userInfo.put("unionId", userInfoJSON.get("unionId"));map.put("userInfo", userInfo);return map;}} catch (Exception e) {e.printStackTrace();}map.put("status", 0);map.put("msg", "解密失败");return map;}

package com.yfs.util;import org.apache.commons.codec.binary.Base64;
import org.bouncycastle.jce.provider.BouncyCastleProvider;import javax.crypto.BadPaddingException;
import javax.crypto.Cipher;
import javax.crypto.IllegalBlockSizeException;
import javax.crypto.NoSuchPaddingException;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;
import java.io.UnsupportedEncodingException;
import java.security.*;
import java.security.spec.InvalidParameterSpecException;/**
 * Created by yfs on 2017/2/6.
 * <p>
 * AES-128-CBC 加密方式
 * 注：
 * AES-128-CBC可以自己定义“密钥”和“偏移量“。
 * AES-128是jdk自动生成的“密钥”。
 */
public class AesCbcUtil {static {//BouncyCastle是一个开源的加解密解决方案，主页在http://www.bouncycastle.org/Security.addProvider(new BouncyCastleProvider());}/**
     * AES解密
     *
     * @param data           //密文，被加密的数据
     * @param key            //秘钥
     * @param iv             //偏移量
     * @param encodingFormat //解密后的结果需要进行的编码
     * @return
     * @throws Exception
     */public static String decrypt(String data, String key, String iv, String encodingFormat) throws Exception {//        initialize();//被加密的数据byte[] dataByte = Base64.decodeBase64(data);//加密秘钥byte[] keyByte = Base64.decodeBase64(key);//偏移量byte[] ivByte = Base64.decodeBase64(iv);try {Cipher cipher = Cipher.getInstance("AES/CBC/PKCS7Padding");SecretKeySpec spec = new SecretKeySpec(keyByte, "AES");AlgorithmParameters parameters = AlgorithmParameters.getInstance("AES");parameters.init(new IvParameterSpec(ivByte));cipher.init(Cipher.DECRYPT_MODE, spec, parameters);// 初始化byte[] resultByte = cipher.doFinal(dataByte);if (null != resultByte && resultByte.length > 0) {String result = new String(resultByte, encodingFormat);return result;}return null;} catch (NoSuchAlgorithmException e) {e.printStackTrace();} catch (NoSuchPaddingException e) {e.printStackTrace();} catch (InvalidParameterSpecException e) {e.printStackTrace();} catch (InvalidKeyException e) {e.printStackTrace();} catch (InvalidAlgorithmParameterException e) {e.printStackTrace();} catch (IllegalBlockSizeException e) {e.printStackTrace();} catch (BadPaddingException e) {e.printStackTrace();} catch (UnsupportedEncodingException e) {e.printStackTrace();}return null;}}

package com.yfs.util;import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.URL;
import java.net.URLConnection;
import java.util.List;
import java.util.Map;public class HttpRequest {public static void main(String[] args) {//发送 GET 请求String s=HttpRequest.sendGet("http://v.qq.com/x/cover/kvehb7okfxqstmc.html?vid=e01957zem6o", "");System.out.println(s);//        //发送 POST 请求
//        String sr=HttpRequest.sendPost("http://www.toutiao.com/stream/widget/local_weather/data/?city=%E4%B8%8A%E6%B5%B7", "");
//        JSONObject json = JSONObject.fromObject(sr);
//        System.out.println(json.get("data"));}/**
     * 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;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()));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;}
}

<build><finalName>com.yfs.app</finalName><plugins><plugin><groupId>org.apache.maven.plugins</groupId><artifactId>maven-compiler-plugin</artifactId><version>2.5.1</version><configuration><source>1.7</source><target>1.7</target><compilerArguments><verbose /><bootclasspath>${JAVA_HOME}/jre/lib/rt.jar:${JAVA_HOME}/jre/lib/jce.jar</bootclasspath></compilerArguments><encoding>utf-8</encoding></configuration></plugin></plugins>
</build>