github:https://github.com/huyufan1995/oauth_weixin.git

重要放在开头说明：

想深入研究微信相关：小程序后台，公众号等，建议看微信文档后了解下

WXJAVA第三方的SDK

  想要懂微信登陆原理最好看下oauth2.0 协议。懂了之后看本人的文档+代码 你会感觉！！

  还有其中微信开发调试中用到的回调地址必须能够http访问，本人用的是natapp配置的

 具体natapp配置调试微信步骤我就不啰嗦了，读者可以百度。下面放大致步骤，具体代码请

gitHub

 

思维图

 

1首先去微信开放平台获取测试账号

https://mp.weixin.qq.com/debug/cgi-bin/sandboxinfo?action=showinfo&t=sandbox/index

项目结构图

2 下面是代码的主要配置其中获取各种信息的配置已经写好  application.yml

spring:mvc:view:# 页面默认前缀目录prefix: /WEB-INF/jsp/# 响应页面默认后缀suffix: .jspappid: wx60c1c374fd9379a2
 secret: b6e4ebc42a5fa9fd1ea7ea440e52d648
 redirectUri: http://moran1995.natapp1.cc/callback
 ### 生成微信授权
 authorizedUrl: https://open.weixin.qq.com/connect/oauth2/authorize?appid=APPID&redirect_uri=REDIRECT_URI&response_type=code&scope=snsapi_userinfo&state=STATE#wechat_redirect
 ###获取code后，请求以下链接获取access_token
 access_token: https://api.weixin.qq.com/sns/oauth2/access_token?appid=APPID&secret=SECRET&code=CODE&grant_type=authorization_code
 ###拉取用户信息(需scope为 snsapi_userinfo)
 userinfo: https://api.weixin.qq.com/sns/userinfo?access_token=ACCESS_TOKEN&openid=OPENID&lang=zh_CN

3 controller层代码

package oauthWeixin.oauth;import javax.servlet.http.HttpServletRequest;import oauthWeixin.utils.HttpClientUtils;
 import oauthWeixin.utils.WeiXinUtils;
 import oauthWeixin.base.BaseApiService;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Controller;
 import org.springframework.web.bind.annotation.RequestMapping;import com.alibaba.fastjson.JSONObject;@Controller
 public class OauthController extends BaseApiService {@Autowiredprivate WeiXinUtils weiXinUtils;private String errorPage = "errorPage";// 生成授权链接@RequestMapping("/authorizedUrl")public String authorizedUrl() {return "redirect:" + weiXinUtils.getAuthorizedUrl();}// 微信授权回调地址@RequestMapping("/callback")public String callback(String code, HttpServletRequest request) {// 1.使用Code 获取 access_tokenString accessTokenUrl = weiXinUtils.getAccessTokenUrl(code);JSONObject resultAccessToken = HttpClientUtils.httpGet(accessTokenUrl);boolean containsKey = resultAccessToken.containsKey("errcode");if (containsKey) {request.setAttribute("errorMsg", "系统错误!");return errorPage;}// 2.使用access_token获取用户信息String accessToken = resultAccessToken.getString("access_token");String openid = resultAccessToken.getString("openid");// 3.拉取用户信息(需scope为 snsapi_userinfo)String userInfoUrl = weiXinUtils.getUserInfo(accessToken, openid);JSONObject userInfoResult = HttpClientUtils.httpGet(userInfoUrl);System.out.println("userInfoResult:" + userInfoResult);request.setAttribute("nickname", userInfoResult.getString("nickname"));request.setAttribute("city", userInfoResult.getString("city"));request.setAttribute("headimgurl", userInfoResult.getString("headimgurl"));return "info";}}
 

但是官方要求请求必须是在微信环境下

在输入项目访问路径会有如下

所以要用到微信开发工具

 

 

 

请求项目后如下

 

下一步放开断点后如下：微信开发工具需要用户确认

点击确认后会根据我们配置的回调地址请求后台

 

 

 

成功界面如下：