python实现前后端分离,django实现前后端分离

微信扫一扫关注个公众号。谢谢各位

第一步：https://connect.qq.com/去此网站进行授权（需要用到域名，域名需要备案通过）

审核通过后。拿到appid

第二步：前端定义个按钮，为按钮绑定好事件（client_id==appid）

window.location.href ="https://graph.qq.com/oauth2.0/authorize?response_type=code&client_id=******&state=register&redirect_uri="+encodeURI("http://zhdydet.xyz:8085/api/qqLogin");//http://zhdydet.xyz:8085/api/qqLogin===>回调地址（qq第三方）

第三步：编写后台回调代码

//具体此代码要根据业务来。我这边用的是shiro权限框架。回调后。默认进行shiro登录授权，以及根据openid进行添加和修改用户信息

@RequestMapping("/qqLogin")public void qqLoginAfter(HttpServletResponse response, HttpServletRequest request) { try{ HttpSession session = request.getSession(); String code = request.getParameter("code"); String state = request.getParameter("state"); String uuid = (String) session.getAttribute("state"); if(uuid != null){ if(!uuid.equals(state)){ //throw new Exception("QQ,state错误"); } } //Step2：通过Authorization Code获取Access Token String url = "https://graph.qq.com/oauth2.0/token?grant_type=authorization_code"+ "&client_id=" + QQHttpClient.APPID + "&client_secret=" + QQHttpClient.APPKEY + "&code=" + code + "&redirect_uri=" + QQHttpClient.CALLBACK; String access_token = QQHttpClient.getAccessToken(url); //Step3: 获取回调后的 openid 值 url = "https://graph.qq.com/oauth2.0/me?access_token=" + access_token; String openid = QQHttpClient.getOpenID(url); //Step4：获取QQ用户信息 url = "https://graph.qq.com/user/get_user_info?access_token=" + access_token + "&oauth_consumer_key="+ QQHttpClient.APPID + "&openid=" + openid; User user = userService.selectByOpenId(openid); JSONObject jsonObject = QQHttpClient.getUserInfo(url); String avatarImg = jsonObject.getString("figureurl_qq"); String nickname = jsonObject.getString("nickname"); String gender = jsonObject.getString("gender"); User user1 = new User(); Subject subject = SecurityUtils.getSubject(); if(user == null){ user1.setRealName(nickname); user1.setPicture(avatarImg); user1.setOpenID(openid); user1.setUserName(openid); String salt = getSalt(); user1.setSalt(salt); String password = MD5Utils.MD5Encode(openid+"_"+salt+"_"+"123456","utf-8"); user1.setPassword(password); user1.setRoleId(5); user1.setAddTime(new Date()); this.userService.insertUser(user1); UsernamePasswordToken info = new UsernamePasswordToken(openid, "123456"); subject.login(info); // response.sendRedirect("/api/index"); }else{ user1.setRealName(nickname); user1.setPicture(avatarImg); user1.setOpenID(openid); user1.setUserName(openid); user1.setId(user.getId()); user1.setUpdateTime(new Date()); this.userService.updateUser(user1); UsernamePasswordToken info = new UsernamePasswordToken(openid, "123456"); subject.login(info); } redisTemplate.opsForValue().set("user:info"+":"+subject.getSession().getId(),user1,1L, TimeUnit.HOURS); response.sendRedirect("/api/index"); response.setStatus(200); }catch (IOException e){ }}

QQHttpClient类

需要用到的maven依赖

<dependency> <groupId>org.apache.httpcomponents</groupId> <artifactId>httpclient</artifactId> <version>4.5.6</version></dependency>

package com.bus.utils;import com.alibaba.fastjson.JSONObject;import org.apache.http.HttpEntity;import org.apache.http.HttpResponse;import org.apache.http.client.methods.HttpGet;import org.apache.http.impl.client.CloseableHttpClient;import org.apache.http.impl.client.HttpClients;import org.apache.http.util.EntityUtils;import java.io.IOException;/** * @author wwz * @date 2019-07-24 * @descrption: */public class QQHttpClient { //QQ互联中提供的 appid 和 appkey public static final String APPID = "**********"; public static final String APPKEY = "*********"; public static final String CALLBACK = "http://zhdydet.xyz:8085/api/qqLogin"; private static JSONObject parseJSONP(String jsonp){ int startIndex = jsonp.indexOf("("); int endIndex = jsonp.lastIndexOf(")"); String json = jsonp.substring(startIndex + 1,endIndex); return JSONObject.parseObject(json); } public static String getAccessToken(String url) throws IOException { CloseableHttpClient client = HttpClients.createDefault(); String token = null; HttpGet httpGet = new HttpGet(url); HttpResponse response = client.execute(httpGet); HttpEntity entity = response.getEntity(); if(entity != null){ String result = EntityUtils.toString(entity,"UTF-8"); if(result.indexOf("access_token") >= 0){ String[] array = result.split("&"); for (String str : array){ if(str.indexOf("access_token") >= 0){ token = str.substring(str.indexOf("=") + 1); break; } } } } httpGet.releaseConnection(); return token; } public static String getOpenID(String url) throws IOException { JSONObject jsonObject = null; CloseableHttpClient client = HttpClients.createDefault(); HttpGet httpGet = new HttpGet(url); HttpResponse response = client.execute(httpGet); HttpEntity entity = response.getEntity(); if(entity != null){ String result = EntityUtils.toString(entity,"UTF-8"); jsonObject = parseJSONP(result); } httpGet.releaseConnection(); if(jsonObject != null){ return jsonObject.getString("openid"); }else { return null; } } public static JSONObject getUserInfo(String url) throws IOException { JSONObject jsonObject = null; CloseableHttpClient client = HttpClients.createDefault(); HttpGet httpGet = new HttpGet(url); HttpResponse response = client.execute(httpGet); HttpEntity entity = response.getEntity(); if(entity != null){ String result = EntityUtils.toString(entity,"UTF-8"); jsonObject = JSONObject.parseObject(result); } httpGet.releaseConnection(); return jsonObject; }}