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WxLiteOAuth added
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‎CHANGELOG.md‎

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# ChangeLog
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## 2.3.8
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#### 新增
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- WxLiteOAuth 接口
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- Agreement 接口
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#### 修改
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- 合并部分内部类
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- WxpubOAuth 接口错误时增加异常
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## 2.3.7 (2018-03-16)
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#### 新增
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- BalanceSettlement 接口

‎src/main/java/com/pingplusplus/util/WxLiteOAuth.java‎

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package com.pingplusplus.util;
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import com.google.gson.FieldNamingPolicy;
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import com.google.gson.GsonBuilder;
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import com.pingplusplus.exception.ChannelException;
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import java.io.UnsupportedEncodingException;
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import java.util.HashMap;
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import java.util.Map;
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/**
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* 用于微信小程序用户授权后获取用户唯一标识 openid
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* WxLiteOAuth 中的方法都是可选的，开发者也可根据实际情况自行开发相关功能，
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* 详细内容可参考 https://developers.weixin.qq.com/miniprogram/dev/api/api-login.html
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*/
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public class WxLiteOAuth extends WxpubOAuth {
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/**
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* 获取微信小程序授权用户唯一标识
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*
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* @param appId 微信小程序应用唯一标识
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* @param appSecret 微信小程序应用密钥（注意保密）
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* @param code 授权 code, 登录时获取的 code
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* @return openid 微信小程序授权用户唯一标识
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* @throws UnsupportedEncodingException
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*/
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public static String getOpenId(String appId, String appSecret, String code)
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throws UnsupportedEncodingException, ChannelException {
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AuthResult authResult = getSession(appId, appSecret, code);
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if (authResult.getErrmsg() != null) {
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throw new ChannelException(authResult.getErrmsg(), authResult.getErrcode().toString(), null);
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}
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return authResult.getOpenid();
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}
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/**
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* 获取微信小程序授权用户唯一标识
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*
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* @param appId 微信小程序应用唯一标识
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* @param appSecret 微信小程序应用密钥（注意保密）
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* @param code 授权 code, 登录时获取的 code
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* @return openid 微信小程序授权用户唯一标识
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* @throws UnsupportedEncodingException
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*/
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public static AuthResult getSession(String appId, String appSecret, String code)
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throws UnsupportedEncodingException {
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Map<String, String> params = new HashMap<String, String>();
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params.put("appid", appId);
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params.put("secret", appSecret);
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params.put("js_code", code);
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params.put("grant_type", "authorization_code");
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String url = "https://api.weixin.qq.com/sns/jscode2session?" + httpBuildQuery(params);
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String ret = httpGet(url);
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AuthResult authResult = new GsonBuilder()
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.setFieldNamingPolicy(FieldNamingPolicy.LOWER_CASE_WITH_UNDERSCORES)
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.create().fromJson(ret, AuthResult.class);
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return authResult;
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}
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class AuthResult {
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String sessionKey;
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String openid;
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String unionid;
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Integer errcode;
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String errmsg;
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public String getSessionKey() {
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return sessionKey;
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}
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public String getOpenid() {
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return openid;
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}
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public String getUnionid() {
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return unionid;
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}
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public Integer getErrcode() {
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return errcode;
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}
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public String getErrmsg() {
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return errmsg;
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}
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}
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}

‎src/main/java/com/pingplusplus/util/WxpubOAuth.java‎

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package com.pingplusplus.util;
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import com.google.gson.*;
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import com.pingplusplus.exception.ChannelException;
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import com.pingplusplus.model.Channel;
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import java.io.BufferedReader;
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import java.io.IOException;
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/**
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* 用于微信公众号OAuth2.0鉴权，用户授权后获取授权用户唯一标识openid
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* WxpubOAuth中的方法都是可选的，开发者也可根据实际情况自行开发相关功能，
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* 详细内容可参考http://mp.weixin.qq.com/wiki/17/c0f37d5704f0b64713d5d2c37b468d75.html
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* 详细内容可参考 https://mp.weixin.qq.com/wiki?t=resource/res_main&id=mp1421140842
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*/
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public class WxpubOAuth {
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* @throws UnsupportedEncodingException
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*/
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public static String getOpenId(String appId, String appSecret, String code)
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throws UnsupportedEncodingException {
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throws UnsupportedEncodingException, ChannelException {
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String url = WxpubOAuth.createOauthUrlForOpenid(appId, appSecret, code);
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String ret = WxpubOAuth.httpGet(url);
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OAuthResult oAuthResult = new GsonBuilder()
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.setFieldNamingPolicy(FieldNamingPolicy.LOWER_CASE_WITH_UNDERSCORES)
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.create().fromJson(ret, OAuthResult.class);
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if (oAuthResult.getErrmsg() != null) {
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throw new ChannelException(oAuthResult.getErrmsg(), oAuthResult.getErrcode().toString(), null);
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}
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return oAuthResult.getOpenid();
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}
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return "https://api.weixin.qq.com/sns/oauth2/access_token?" + queryString;
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}
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private static String httpBuildQuery(Map<String, String> queryString) throws UnsupportedEncodingException {
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protected static String httpBuildQuery(Map<String, String> queryString) throws UnsupportedEncodingException {
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StringBuilder sb = new StringBuilder();
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for (Map.Entry<String, String> e : queryString.entrySet()) {
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if (sb.length() > 0) {
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* @param urlString
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* @return responseString
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*/
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private static String httpGet(String urlString) {
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protected static String httpGet(String urlString) {
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String result = "";
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try {
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URL url = new URL(urlString);
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String refreshToken;
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String openid;
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String scope;
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Integer errcode;
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String errmsg;
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public String getAccessToken() {
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return accessToken;
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public String getScope() {
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return scope;
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}
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public Integer getErrcode() {
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return errcode;
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}
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public String getErrmsg() {
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return errmsg;
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}
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}
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}

‎src/test/java/com/pingplusplus/WeixinOpenidTest.java‎

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package com.pingplusplus;
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import com.pingplusplus.exception.ChannelException;
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import com.pingplusplus.util.WxLiteOAuth;
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import com.pingplusplus.util.WxpubOAuth;
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import org.junit.Test;
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import java.io.UnsupportedEncodingException;
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public class WeixinOpenidTest extends PingppTestBase {
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/**
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* 通过 appId, secret, code 获取微信公众号 openid 信息。
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*/
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@Test
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public void testWxPubOpenid() throws UnsupportedEncodingException {
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try {
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String openid = WxpubOAuth.getOpenId("wx262681902838", "piOgk852569gKXpRLjhh38J6O14H7ejb", "ZkJfiPkzQAFCxc4vxRE4");
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System.out.println(openid);
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} catch (ChannelException e) {
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System.out.println(e.getMessage());
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System.out.println(e.getParam());
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}
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}
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/**
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* 通过 appId, secret, code 获取微信小程序 openid 信息。
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*/
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@Test
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public void testWxLiteOpenid() throws UnsupportedEncodingException {
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try {
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String openid = WxLiteOAuth.getOpenId("wx283881926260", "piOgk852569gKXpRLjhh38J6O14H7ejb", "vNnPjvqD0BT3snbxVLjY");
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System.out.println(openid);
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} catch (ChannelException e) {
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System.out.println(e.getMessage());
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System.out.println(e.getParam());
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}
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}
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}

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