qq登录代码java(Java如何实现QQ第三方登录)

前期准备工作

1.云服务器

2.备案的域名

3.本地调试需要修改hosts文件,将域名映射到127.0.0.1

申请QQ互联,并成为开发者

申请QQ互联创建应用时需要备案域名,所以建议提前准备备案域名。

QQ互联:https://connect.qq.com/index.html

登录后,点击头像,进入认证页面,填写信息,等待审核。


qq登录代码java(Java如何实现QQ第三方登录)(1)

审核通过后创建应用


qq登录代码java(Java如何实现QQ第三方登录)(2)

应用创建通过审核后,就可以使用APP ID 和 APP Key


qq登录代码java(Java如何实现QQ第三方登录)(3)

前期工作就这些了,后面可以开始写代码了。

项目结构:


qq登录代码java(Java如何实现QQ第三方登录)(4)

properties或者yml配置文件(这里就是简单的配置了一下,可以自行添加数据库等配置)

server.port=80 server.servlet.context-path=/ #qq互联 qq.oauth.http:QQ互联中申请填写的网站地址


qq登录代码java(Java如何实现QQ第三方登录)(5)

在pom中添加依赖

<!--httpclient--> <dependency> <groupId>org.apache.httpcomponents</groupId> <artifactId>httpclient</artifactId> <version>4.5.6</version> </dependency> <!--阿里 JSON--> <dependency> <groupId>com.alibaba</groupId> <artifactId>fastjson</artifactId> <version>1.2.47</version> </dependency>

发送QQ登录请求

定义全局变量获取配置文件中的网站地址

@Value("${qq.oauth.http}") private String http;

定义登录回调地址(可以用网站地址拼接或者直接写)

//QQ互联中的回调地址 String backUrl = http "/index";


qq登录代码java(Java如何实现QQ第三方登录)(6)

登录请求方法代码

@GetMapping("/qq/login") public String qq(Httpsession session) throws UnsupportedEncodingException { //QQ互联中的回调地址 String backUrl = http "/index"; //用于第三方应用防止CSRF攻击 String uuid = UUID.randomUUID().toString().replaceAll("-",""); session.setAttribute("state",uuid); //Step1:获取Authorization Code String url = "https://graph.qq.com/oauth2.0/authorize?response_type=code" "&client_id=" QQHttpClient.APPID "&redirect_uri=" URLEncoder.encode(backUrl, "utf-8") "&state=" uuid; return "redirect:" url; }

正确返回示例:

JSON示例:

Content-type: text/html; charset=utf-8 { "ret":0, "is_lost":0, "nickname":"Peter", "gender":"男", "country":"中国", "province":"广东", "city":"深圳", "figureurl":"http://imgcache.qq.com/qzone_v4/client/userinfo_icon/1236153759.gif", "is_yellow_vip":1, "is_yellow_year_vip":1, "yellow_vip_level":7, "is_yellow_high_vip": 0 }

错误返回示例

Content-type: text/html; charset=utf-8 { "ret":1002, "msg":"请先登录" }

用户资料的接口文档:https://wiki.open.qq.com/wiki/v3/user/get_info

请求成功,用户确认登录后回调方法

@GetMapping("/index") public String qqcallback(HttpServletRequest request, HttpServletResponse response) throws Exception { HttpSession session = request.getSession(); //qq返回的信息 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 QQStateErrorException("QQ,state错误"); } } //Step2:通过Authorization Code获取Access Token String backUrl = http "/index"; 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=" backUrl; 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; //返回用户的信息 JSONObject jsonObject = QQHttpClient.getUserInfo(url); //也可以放到Redis和mysql中,只取出了部分数据,根据自己需要取 session.setAttribute("openid",openid); //openid,用来唯一标识qq用户 session.setAttribute("nickname",(String)jsonObject.get("nickname")); //QQ名 session.setAttribute("figureurl_qq_2",(String)jsonObject.get("figureurl_qq_2")); //大小为100*100像素的QQ头像URL //响应重定向到home路径 return "redirect:/home"; }

QQ客户端类QQHttpClient:

主要用于QQ消息返回

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; public class QQHttpClient { //QQ互联中提供的 appid 和 appkey public static final String APPID = "appid"; public static final String APPKEY = "appkey"; 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); } //qq返回信息:access_token=FE04************************CCE2&expires_in=7776000&refresh_token=88E4************************BE14 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; } //qq返回信息:callback( {"client_id":"YOUR_APPID","openid":"YOUR_OPENID"} ); 需要用到上面自己定义的解析方法parseJSONP 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; } } //qq返回信息:{ "ret":0, "msg":"", "nickname":"YOUR_NICK_NAME", ... },为JSON格式,直接使用JSONObject对象解析 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; } }

异常类QQStateErrorException:

public class QQStateErrorException extends Exception { public QQStateErrorException() { super(); } public QQStateErrorException(String message) { super(message); } public QQStateErrorException(String message, Throwable cause) { super(message, cause); } public QQStateErrorException(Throwable cause) { super(cause); } protected QQStateErrorException(String message, Throwable cause, boolean enableSuppression, boolean writableStackTrace) { super(message, cause, enableSuppression, writableStackTrace); } }

首页controller用于跳转页面

@Controller public class IndexController { @GetMapping({"/index", "/"}) public String index(){ return "index"; } @GetMapping("/home") public String home(HttpSession session, Model model){ String openid = (String) session.getAttribute("openid"); String nickname = (String) session.getAttribute("nickname"); String figureurl_qq_2 = (String) session.getAttribute("figureurl_qq_2"); model.addAttribute("openid",openid); model.addAttribute("nickname",nickname); model.addAttribute("figureurl_qq_2",figureurl_qq_2); return "home"; } }

还有两个简单的登录页面和信息页面

index.html

<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Title</title> </head> <body> <a href="/qq/login">QQ登录</a> </body> </html>

home.html

<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Title</title> </head> <body> <div> <img th:src="${figureurl_qq_2}"> </div> <span th:text="${openid}"></span> <span th:text="${nickname}"></span> </body> </html>

最后附上下载地址:https://github.com/machaoyin/qqdemo


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