QQ第三方登录

qq互联申请开发者账号

搞第三方登录，必须先进行接口的申请 得到授权；

QQ第三方接口的申请地址：QQ互联 https://connect.qq.com/index.html

申请之前，你必须有一个进行过国内备案过的网站，个人也可以；

登录QQ互联后，首先填写个人或者公司信息，然后申请网站应用，但是APP的话，需要申请移动应用.

填写后，一般一周内审核

这里有个回调地址注意下，是用户进行第三方登录的时候会带上这个参数一起请求服务器，然后腾讯服务器再调用这个地址，顺便把用户信息带也过来，这样开发者的服务器就能得到用户信息了；

get_user_info接口窥探

申请通过过，腾讯开放平台给我们提供了get_user_info接口

我们得熟悉下这个接口，通过这个接口我们能获取到一些比如昵称，性别，头像等信息；

接口概要

请求参数：

请求Demo：

https://graph.qq.com/user/get_user_info?access_token=YOUR_ACCESS_TOKEN&oauth_consumer_key=YOUR_APP_ID&openid=YOUR_OPENID

返回Demo:

{
“ret”:0,
“msg”:””,
“nickname”:”YOUR_NICK_NAME”,
…
}

返回参数说明：

ret 返回码
msg 如果ret<0，会有相应的错误信息提示，返回数据全部用UTF-8编码。

1. nickname 用户在QQ空间的昵称。
2. figureurl 大小为30×30像素的QQ空间头像URL。
3. figureurl_1 大小为50×50像素的QQ空间头像URL。
4. figureurl_2 大小为100×100像素的QQ空间头像URL。
5. figureurl_qq_1 大小为40×40像素的QQ头像URL。
6. figureurl_qq_2 大小为100×100像素的QQ头像URL。需要注意，不是所有的用户都拥有QQ的100x100的头像，但40x40像素则是一定会有。
7. gender 性别。 如果获取不到则默认返回”男”

---

鑫哥要说：大体原理了解，大体流程了解，看下面我的一顿猛操，直接撸代码，就几步搞定，坑我都已经填平了；

1.pom.xml 相关依赖

<dependencies>
	<dependency>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter</artifactId>
	</dependency>
	<dependency>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-test</artifactId>
		<scope>test</scope>
	</dependency>
	
	 <!-- 热部署 -->
       <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
           <optional>true</optional>
       </dependency> 
       
       <!-- thymeleaf 模版   -->
       <dependency>
           <groupId>org.springframework.boot</groupId>
           <artifactId>spring-boot-starter-thymeleaf</artifactId>
       </dependency>
       
	 <!-- web -->
	<dependency>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-web</artifactId>
	</dependency>
	
	<!-- 以下是 qq wx 联合登陆需要的相关依赖工具 commons-io， commons-lang3，httpclient，fastjson-->
       <dependency>
           <groupId>org.apache.commons</groupId>
           <artifactId>commons-io</artifactId>
           <version>1.3.2</version>
       </dependency>
       <dependency>
           <groupId>org.apache.commons</groupId>
           <artifactId>commons-lang3</artifactId>
       </dependency>
       <dependency>
           <groupId>org.apache.httpcomponents</groupId>
           <artifactId>httpclient</artifactId>
       </dependency>
       <dependency>
           <groupId>com.alibaba</groupId>
           <artifactId>fastjson</artifactId>
           <version>1.2.38</version>
       </dependency>
</dependencies>

2. 配置文件信息

填写QQ互联的Appid，key，登录后回调地址（必须和QQ互联填写的一致，QQLogin 对应代码里的接口）

### QQ
constants.qqAppId= 101847701
constants.qqAppSecret= ********  #换自己密钥      
constants.qqRedirectUrl= http://www.lovekhh.xyz/connect/qq

3. 读取配置文件信息常量类

import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Configuration;

/**
 * qq 登陆常量配置类
 */
@Configuration
@Data
public class Constants {

	@Value("${constants.qqAppId}")
	private String qqAppId;

	@Value("${constants.qqAppSecret}")
	private String qqAppSecret;

	@Value("${constants.qqRedirectUrl}")
	private String qqRedirectUrl;

	@Value("${constants.weCatAppId}")
	private String weCatAppId;

	@Value("${constants.weCatAppSecret}")
	private String weCatAppSecret;

	@Value("${constants.weCatRedirectUrl}")
	private String weCatRedirectUrl;

}

4. qq数据实体类

public class QQUserInfo {

	private Integer ret;
	private String msg;
	private Integer is_lost;
	private String nickname;
	private String gender;
	private String province;
	private String city;
	private String year;
	private String constellation;
	private String figureurl;
	private String figureurl_1;
	private String figureurl_2;
	private String figureurl_qq;
	private String figureurl_qq_1;
	private String figureurl_qq_2;
	private String is_yellow_vip;
	private String vip;
	private String yellow_vip_level;
	private String level;
	private String is_yellow_year_vip;
	
   //自行生成 set get
}

5.Http工具类 HttpClientUtils.java

import java.io.IOException;
import java.net.SocketTimeoutException;
import java.security.GeneralSecurityException;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;

import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLException;
import javax.net.ssl.SSLSession;
import javax.net.ssl.SSLSocket;

/**
 * Created by Administrator on 2018/10/30/030.
 */

import org.apache.commons.io.IOUtils;
import org.apache.commons.lang3.StringUtils;
import org.apache.http.Consts;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.HttpClient;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.config.RequestConfig.Builder;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.conn.ConnectTimeoutException;
import org.apache.http.conn.ssl.SSLConnectionSocketFactory;
import org.apache.http.conn.ssl.SSLContextBuilder;
import org.apache.http.conn.ssl.TrustStrategy;
import org.apache.http.conn.ssl.X509HostnameVerifier;
import org.apache.http.entity.ContentType;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.impl.conn.PoolingHttpClientConnectionManager;
import org.apache.http.message.BasicNameValuePair;

@SuppressWarnings("all")
public class HttpClientUtils {

	public static final int connTimeout = 10000;
	public static final int readTimeout = 10000;
	public static final String charset = "UTF-8";
	private static HttpClient client = null;

	static {
		PoolingHttpClientConnectionManager cm = new PoolingHttpClientConnectionManager();
		cm.setMaxTotal(128);
		cm.setDefaultMaxPerRoute(128);
		client = HttpClients.custom().setConnectionManager(cm).build();
	}

	public static String postParameters(String url, String parameterStr)
			throws ConnectTimeoutException, SocketTimeoutException, Exception {
		return post(url, parameterStr, "application/x-www-form-urlencoded", charset, connTimeout, readTimeout);
	}

	public static String postParameters(String url, String parameterStr, String charset, Integer connTimeout,
			Integer readTimeout) throws ConnectTimeoutException, SocketTimeoutException, Exception {
		return post(url, parameterStr, "application/x-www-form-urlencoded", charset, connTimeout, readTimeout);
	}

	public static String postParameters(String url, Map<String, String> params)
			throws ConnectTimeoutException, SocketTimeoutException, Exception {
		return postForm(url, params, null, connTimeout, readTimeout);
	}

	public static String postParameters(String url, Map<String, String> params, Integer connTimeout,
			Integer readTimeout) throws ConnectTimeoutException, SocketTimeoutException, Exception {
		return postForm(url, params, null, connTimeout, readTimeout);
	}

	public static String get(String url) throws Exception {
		return get(url, charset, null, null);
	}

	public static String get(String url, String charset) throws Exception {
		return get(url, charset, connTimeout, readTimeout);
	}

	/**
	 * 发送一个 Post 请求, 使用指定的字符集编码.
	 *
	 * @param url
	 * @param body        RequestBody
	 * @param mimeType    例如 application/xml "application/x-www-form-urlencoded"
	 *                    a=1&b=2&c=3
	 * @param charset     编码
	 * @param connTimeout 建立链接超时时间,毫秒.
	 * @param readTimeout 响应超时时间,毫秒.
	 * @return ResponseBody, 使用指定的字符集编码.
	 * @throws ConnectTimeoutException 建立链接超时异常
	 * @throws SocketTimeoutException  响应超时
	 * @throws Exception
	 */
	public static String post(String url, String body, String mimeType, String charset, Integer connTimeout,
			Integer readTimeout) throws ConnectTimeoutException, SocketTimeoutException, Exception {
		HttpClient client = null;
		HttpPost post = new HttpPost(url);
		String result = "";
		try {
			if (StringUtils.isNotBlank(body)) {
				HttpEntity entity = new StringEntity(body, ContentType.create(mimeType, charset));
				post.setEntity(entity);
			}
			// 设置参数
			Builder customReqConf = RequestConfig.custom();
			if (connTimeout != null) {
				customReqConf.setConnectTimeout(connTimeout);
			}
			if (readTimeout != null) {
				customReqConf.setSocketTimeout(readTimeout);
			}
			post.setConfig(customReqConf.build());

			HttpResponse res;
			if (url.startsWith("https")) {
				// 执行 Https 请求.
				client = createSSLInsecureClient();
				res = client.execute(post);
			} else {
				// 执行 Http 请求.
				client = HttpClientUtils.client;
				res = client.execute(post);
			}
			result = IOUtils.toString(res.getEntity().getContent(), charset);
		} finally {
			post.releaseConnection();
			if (url.startsWith("https") && client != null && client instanceof CloseableHttpClient) {
				((CloseableHttpClient) client).close();
			}
		}
		return result;
	}

	/**
	 * 提交form表单
	 *
	 * @param url
	 * @param params
	 * @param connTimeout
	 * @param readTimeout
	 * @return
	 * @throws ConnectTimeoutException
	 * @throws SocketTimeoutException
	 * @throws Exception
	 */
	public static String postForm(String url, Map<String, String> params, Map<String, String> headers,
			Integer connTimeout, Integer readTimeout)
			throws ConnectTimeoutException, SocketTimeoutException, Exception {

		HttpClient client = null;
		HttpPost post = new HttpPost(url);
		try {
			if (params != null && !params.isEmpty()) {
				List<NameValuePair> formParams = new ArrayList<org.apache.http.NameValuePair>();
				Set<Entry<String, String>> entrySet = params.entrySet();
				for (Entry<String, String> entry : entrySet) {
					formParams.add(new BasicNameValuePair(entry.getKey(), entry.getValue()));
				}
				UrlEncodedFormEntity entity = new UrlEncodedFormEntity(formParams, Consts.UTF_8);
				post.setEntity(entity);
			}

			if (headers != null && !headers.isEmpty()) {
				for (Entry<String, String> entry : headers.entrySet()) {
					post.addHeader(entry.getKey(), entry.getValue());
				}
			}
			// 设置参数
			Builder customReqConf = RequestConfig.custom();
			if (connTimeout != null) {
				customReqConf.setConnectTimeout(connTimeout);
			}
			if (readTimeout != null) {
				customReqConf.setSocketTimeout(readTimeout);
			}
			post.setConfig(customReqConf.build());
			HttpResponse res = null;
			if (url.startsWith("https")) {
				// 执行 Https 请求.
				client = createSSLInsecureClient();
				res = client.execute(post);
			} else {
				// 执行 Http 请求.
				client = HttpClientUtils.client;
				res = client.execute(post);
			}
			return IOUtils.toString(res.getEntity().getContent(), "UTF-8");
		} finally {
			post.releaseConnection();
			if (url.startsWith("https") && client != null && client instanceof CloseableHttpClient) {
				((CloseableHttpClient) client).close();
			}
		}
	}

	/**
	 * 发送一个 GET 请求
	 *
	 * @param url
	 * @param charset
	 * @param connTimeout 建立链接超时时间,毫秒.
	 * @param readTimeout 响应超时时间,毫秒.
	 * @return
	 * @throws ConnectTimeoutException 建立链接超时
	 * @throws SocketTimeoutException  响应超时
	 * @throws Exception
	 */
	public static String get(String url, String charset, Integer connTimeout, Integer readTimeout)
			throws ConnectTimeoutException, SocketTimeoutException, Exception {

		HttpClient client = null;
		HttpGet get = new HttpGet(url);
		String result = "";
		try {
			// 设置参数
			Builder customReqConf = RequestConfig.custom();
			if (connTimeout != null) {
				customReqConf.setConnectTimeout(connTimeout);
			}
			if (readTimeout != null) {
				customReqConf.setSocketTimeout(readTimeout);
			}
			get.setConfig(customReqConf.build());

			HttpResponse res = null;

			if (url.startsWith("https")) {
				// 执行 Https 请求.
				client = createSSLInsecureClient();
				res = client.execute(get);
			} else {
				// 执行 Http 请求.
				client = HttpClientUtils.client;
				res = client.execute(get);
			}

			result = IOUtils.toString(res.getEntity().getContent(), charset);
		} finally {
			get.releaseConnection();
			if (url.startsWith("https") && client != null && client instanceof CloseableHttpClient) {
				((CloseableHttpClient) client).close();
			}
		}
		return result;
	}

	/**
	 * 从 response 里获取 charset
	 *
	 * @param ressponse
	 * @return
	 */
	@SuppressWarnings("unused")
	private static String getCharsetFromResponse(HttpResponse ressponse) {
		// Content-Type:text/html; charset=GBK
		if (ressponse.getEntity() != null && ressponse.getEntity().getContentType() != null
				&& ressponse.getEntity().getContentType().getValue() != null) {
			String contentType = ressponse.getEntity().getContentType().getValue();
			if (contentType.contains("charset=")) {
				return contentType.substring(contentType.indexOf("charset=") + 8);
			}
		}
		return null;
	}

	/**
	 * 创建 SSL连接
	 * 
	 * @return
	 * @throws GeneralSecurityException
	 */
	private static CloseableHttpClient createSSLInsecureClient() throws GeneralSecurityException {
		try {
			SSLContext sslContext = new SSLContextBuilder().loadTrustMaterial(null, new TrustStrategy() {
				public boolean isTrusted(X509Certificate[] chain, String authType) throws CertificateException {
					return true;
				}
			}).build();

			SSLConnectionSocketFactory sslsf = new SSLConnectionSocketFactory(sslContext, new X509HostnameVerifier() {

				@Override
				public boolean verify(String arg0, SSLSession arg1) {
					return true;
				}

				@Override
				public void verify(String host, SSLSocket ssl) throws IOException {
				}

				@Override
				public void verify(String host, X509Certificate cert) throws SSLException {
				}

				@Override
				public void verify(String host, String[] cns, String[] subjectAlts) throws SSLException {
				}

			});

			return HttpClients.custom().setSSLSocketFactory(sslsf).build();

		} catch (GeneralSecurityException e) {
			throw e;
		}
	}

	public static void main(String[] args) {
		try {
			String str = post("https://localhost:443/ssl/test.shtml", "name=12&page=34",
					"application/x-www-form-urlencoded", "UTF-8", 10000, 10000);
			// String str=
			// get("https://localhost:443/ssl/test.shtml?name=12&page=34","GBK");
			/*
			 * Map<String,String> map = new HashMap<String,String>(); map.put("name",
			 * "111"); map.put("page", "222"); String str=
			 * postForm("https://localhost:443/ssl/test.shtml",map,null, 10000, 10000);
			 */
			System.out.println(str);
		} catch (ConnectTimeoutException e) {
			e.printStackTrace();
		} catch (SocketTimeoutException e) {
			e.printStackTrace();
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

}

6. url转码工具类 URLEncodeUtil.java

import java.io.UnsupportedEncodingException;

public class URLEncodeUtil {
    private final static String ENCODE = "UTF-8";
    /**
     * URL 解码
     */
    public static String getURLDecoderString(String str) {
        String result = "";
        if (null == str) {
            return "";
        }
        try {
            result = java.net.URLDecoder.decode(str, ENCODE);
        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
        }
        return result;
    }
    /**
     * URL 转码
     */
    public static String getURLEncoderString(String str) {
        String result = "";
        if (null == str) {
            return "";
        }
        try {
            result = java.net.URLEncoder.encode(str, ENCODE);
        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
        }
        return result;
    }
}

7. Conteoller（实现qq登录层）

package com.zx.qqlogin.controller;

import java.util.HashMap;
import java.util.Map;

import javax.servlet.http.HttpSession;

import com.zx.qqlogin.config.Constants;
import com.zx.qqlogin.config.HttpClientUtils;
import com.zx.qqlogin.config.QQUserInfo;
import com.zx.qqlogin.config.URLEncodeUtil;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.ResponseBody;

import com.alibaba.fastjson.JSON;


/**
 * qq登录
 *
 * @author zx
 * @date 2020年3月10日 下午8:04:15
 */
@Controller
public class QQController {

    /**
     * QQ ：读取Appid相关配置信息静态类
     */
    @Autowired
    private Constants constants;


    /**
     * 登录页
     */
    @GetMapping("/")
    public String login() {
        return "login";
    }

    /**
     * 获得跳转到qq登录页的url,前台直接a连接访问
     *
     * @author wangsong
     * @date 2019年6月18日 下午8:29:20
     * @param session
     * @return
     * @throws Exception
     *
     */
    @GetMapping("/getQQCode")
    public String getCode(HttpSession session, Model model) throws Exception {
        // 拼接url
        StringBuilder url = new StringBuilder();
        url.append("https://graph.qq.com/oauth2.0/authorize?");
        url.append("response_type=code");
        url.append("&client_id=" + constants.getQqAppId());
        // 回调地址 ,回调地址要进行Encode转码
        String redirect_uri = constants.getQqRedirectUrl();
        // 转码
        url.append("&redirect_uri=" + URLEncodeUtil.getURLEncoderString(redirect_uri));
        url.append("&state=ok");
        // HttpClientUtils.get(url.toString(), "UTF-8");
        System.out.println(url.toString());
        return  "redirect:" + url;
    }



    /**
     * 开始登录
     *
     * @param code
     * @param
     * @param 实际业务：token过期调用刷新    token重新获取token信息
     * @param 数据库字段: accessToken，expiresIn，refreshToken，openId
     * @return
     * @throws Exception
     */
    @GetMapping("/connect/qq")
    @ResponseBody
    public QQUserInfo QQLogin(String code, Model model) throws Exception {
        if (code != null) {
            System.out.println(code);
        }
        //获取tocket
        Map<String, Object> qqProperties = getToken(code);
        //获取openId(每个用户的openId都是唯一不变的)
        String openId = getOpenId(qqProperties);
        qqProperties.put("openId",openId);

        //tocket过期刷新token
        //Map<String, Object> refreshToken = refreshToken(qqProperties);

        //获取数据
        QQUserInfo	userInfo =  getUserInfo(qqProperties);
        return userInfo;
    }

    /**
     * 获得token信息（授权，每个用户的都不一致） --> 获得token信息该步骤返回的token期限为一个月
     *
     * @param (保存到Map<String,String> qqProperties)
     * @author wangsong
     * @return
     * @throws Exception
     * @date 2019年6月18日 下午8:56:45
     */
    public Map<String, Object> getToken(String code) throws Exception {
        StringBuilder url = new StringBuilder();
        url.append("https://graph.qq.com/oauth2.0/token?");
        url.append("grant_type=authorization_code");

        url.append("&client_id=" + constants.getQqAppId());
        url.append("&client_secret=" + constants.getQqAppSecret());
        url.append("&code=" + code);
        // 回调地址
        String redirect_uri = constants.getQqRedirectUrl();
        // 转码
        url.append("&redirect_uri=" + URLEncodeUtil.getURLEncoderString(redirect_uri));
        // 获得token
        String result = HttpClientUtils.get(url.toString(), "UTF-8");
        System.out.println("url:" + url.toString());
        // 把token保存
        String[] items = StringUtils.splitByWholeSeparatorPreserveAllTokens(result, "&");
        String accessToken = StringUtils.substringAfterLast(items[0], "=");
        Long expiresIn = new Long(StringUtils.substringAfterLast(items[1], "="));
        String refreshToken = StringUtils.substringAfterLast(items[2], "=");
        //token信息
        Map<String,Object > qqProperties = new HashMap<String,Object >();
        qqProperties.put("accessToken", accessToken);
        qqProperties.put("expiresIn", String.valueOf(expiresIn));
        qqProperties.put("refreshToken", refreshToken);
        return qqProperties;
    }

    /**
     * 刷新token 信息（token过期，重新授权）
     *
     * @return
     * @throws Exception
     */
    @GetMapping("/refreshToken")
    public Map<String,Object> refreshToken(Map<String,Object> qqProperties) throws Exception {
        // 获取refreshToken
        String refreshToken = (String) qqProperties.get("refreshToken");
        StringBuilder url = new StringBuilder("https://graph.qq.com/oauth2.0/token?");
        url.append("grant_type=refresh_token");
        url.append("&client_id=" + constants.getQqAppId());
        url.append("&client_secret=" + constants.getQqAppSecret());
        url.append("&refresh_token=" + refreshToken);
        System.out.println("url:" + url.toString());
        String result = HttpClientUtils.get(url.toString(), "UTF-8");
        // 把新获取的token存到map中
        String[] items = StringUtils.splitByWholeSeparatorPreserveAllTokens(result, "&");
        String accessToken = StringUtils.substringAfterLast(items[0], "=");
        Long expiresIn = new Long(StringUtils.substringAfterLast(items[1], "="));
        String newRefreshToken = StringUtils.substringAfterLast(items[2], "=");
        //重置信息
        qqProperties.put("accessToken", accessToken);
        qqProperties.put("expiresIn", String.valueOf(expiresIn));
        qqProperties.put("refreshToken", newRefreshToken);
        return qqProperties;
    }

    /**
     * 获取用户openId（根据token）
     *
     * @param 把openId存到map中
     * @return
     * @throws Exception
     */
    public String getOpenId(Map<String,Object> qqProperties) throws Exception {
        // 获取保存的用户的token
        String accessToken = (String) qqProperties.get("accessToken");
        if (!StringUtils.isNotEmpty(accessToken)) {
            // return "未授权";
        }
        StringBuilder url = new StringBuilder("https://graph.qq.com/oauth2.0/me?");
        url.append("access_token=" + accessToken);
        String result = HttpClientUtils.get(url.toString(), "UTF-8");
        String openId = StringUtils.substringBetween(result, "\"openid\":\"", "\"}");
        return openId;
    }

    /**
     * 根据token,openId获取用户信息
     */
    public QQUserInfo getUserInfo(Map<String,Object> qqProperties) throws Exception {
        // 取token
        String accessToken = (String) qqProperties.get("accessToken");
        String openId = (String) qqProperties.get("openId");
        if (!StringUtils.isNotEmpty(accessToken) || !StringUtils.isNotEmpty(openId)) {
            return null;
        }
        //拼接url
        StringBuilder url = new StringBuilder("https://graph.qq.com/user/get_user_info?");
        url.append("access_token=" + accessToken);
        url.append("&oauth_consumer_key=" + constants.getQqAppId());
        url.append("&openid=" + openId);
        // 获取qq相关数据
        String result = HttpClientUtils.get(url.toString(), "UTF-8");
        Object json = JSON.parseObject(result, QQUserInfo.class);
        QQUserInfo userInfo = (QQUserInfo) json;
        return userInfo;
    }
}

8.Html页面

<!DOCTYPE html>
<html xmlns:th="http://www.w3.org/1999/xhtml">
<head>
    <meta charset="UTF-8">
    <title>Insert title here</title>
</head>
<body>
<a href="/getQQCode">qq登录</a>
</body>
</html>

9. 效果

运行点击QQ登录

点击头像第三方登录

获取用户信息