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在SpringBoot工程中整合Gitee第三方登录授权功能

编辑时间：2021/04/04

读完本节：大概花费10钟，共1046词

1.创建gitee第三方应用程序

2.在idea中创建SpringBoot工程，建项目时勾选web框架即可

3.使用的dependece：okhttp、fastjson、httpclient

在pom.xml中添加上述依赖

<dependency><groupId>com.squareup.okhttp3</groupId><artifactId>okhttp</artifactId><version>3.14.1</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.alibaba/fastjson -->
<dependency><groupId>com.alibaba</groupId><artifactId>fastjson</artifactId><version>1.2.75</version>
</dependency><!--网络请求-->
<dependency><groupId>org.apache.httpcomponents</groupId><artifactId>httpclient</artifactId><version>4.5.6</version>
</dependency>

4.在idea中建立相应的工程结构

1. 将创建好的第三方应用属性放入src\main\resources\application.properties文件内

   

2. 在前端页面中填入get请求，将用户引导至gitee第三方认证页面上

   https://gitee.com/oauth/authorize?client_id={client_id}&redirect_uri={redirect_uri}&response_type=code&state=1
   

   将{}括号内的参数换成申请的第三方程序的相应属性

   

3. 创建AccessTokenDTO.java用于存储在gitee中创建的第三方应用，通过这个类来对第三方应用中的client_id、client_secret、redirect_uri进行封装

   package com.coderforum.community.dto;import org.springframework.stereotype.Component;/*** @Author: xuehai.XUE* @MailBox: xuehai.xue@qq.com* @Date: 2021/4/1 20:56* @Description: 用于数据传输的对象AccessTokenDTO*/
   @Component
   public class AccessTokenDTO {private String client_id;private String redirect_uri;private String client_secret;private String code;private String state;public String getClient_id() {return client_id;}public void setClient_id(String client_id) {this.client_id = client_id;}public String getRedirect_uri() {return redirect_uri;}public void setRedirect_uri(String redirect_uri) {this.redirect_uri = redirect_uri;}public String getClient_secret() {return client_secret;}public void setClient_secret(String client_secret) {this.client_secret = client_secret;}public String getCode() {return code;}public void setCode(String code) {this.code = code;}public String getState() {return state;}public void setState(String state) {this.state = state;}
   }
   

4. 创建GiteeProvider.java使用方法getAccessToken用于向gitee认证服务器发送请求，发送code获取Accesstoken；使用方法getUser用于向Gitee服务器请求用户数据

   package com.coderforum.community.provider;import com.alibaba.fastjson.JSON;
   import com.coderforum.community.dto.AccessTokenDTO;
   import com.coderforum.community.dto.GiteeUser;
   import okhttp3.*;
   import org.springframework.stereotype.Component;import java.io.IOException;/*** @Author: xuehai.XUE* @MailBox: xuehai.xue@qq.com* @Date: 2021/4/1 20:54* @Description:*/
   @Component
   public class GiteeProvider {/** 通过okhttp向gitee认证服务器发送code以获取返回的AccessToken** @param accessTokenDTO 传入的待获取认证DTO，包含应用id、密钥、重定向地址等* @return AccessToken*/public String getAccessToken(AccessTokenDTO accessTokenDTO){MediaType mediaType = MediaType.get("application/json; charset=utf-8");OkHttpClient client = new OkHttpClient();RequestBody body = RequestBody.create(mediaType, JSON.toJSONString(accessTokenDTO));Request request = new Request.Builder().url("https://gitee.com/oauth/token?grant_type=authorization_code&" +"code=" + accessTokenDTO.getCode() + "&" +"client_id=" + accessTokenDTO.getClient_id() + "&" +"redirect_uri=" + accessTokenDTO.getRedirect_uri() + "&" +"client_secret=" + accessTokenDTO.getClient_secret()).post(body).build();try (Response response = client.newCall(request).execute()) {String string = response.body().string();String accessToken = string.split("\"")[3];return accessToken;} catch (IOException e) {e.printStackTrace();}return null;}/** 应用通过 access_token 访问 Open API 使用用户数据。** @param accessToken 传入的accessToken用于向Gitee服务器请求用户数据* @return*/public GiteeUser getUser(String accessToken){OkHttpClient client = new OkHttpClient();Request request = new Request.Builder().url("https://gitee.com/api/v5/user?access_token=" + accessToken).build();try {Response response = client.newCall(request).execute();String string = response.body().string();//将String的json对象自动的解析成GiteeUser类的对象GiteeUser giteeUser = JSON.parseObject(string, GiteeUser.class);return giteeUser;} catch (IOException e) {e.printStackTrace();}return  null;}
   }
   

5. 创建AuthorizedController.java用于页面控制和跳转

   package com.coderforum.community.controller;import com.coderforum.community.dto.AccessTokenDTO;
   import com.coderforum.community.dto.GiteeUser;
   import com.coderforum.community.provider.GiteeProvider;
   import org.springframework.beans.factory.annotation.Autowired;
   import org.springframework.beans.factory.annotation.Value;
   import org.springframework.stereotype.Controller;
   import org.springframework.web.bind.annotation.GetMapping;
   import org.springframework.web.bind.annotation.RequestParam;/*** @Author: xuehai.XUE* @MailBox: xuehai.xue@qq.com* @Date: 2021/4/1 20:45* @Description:*/
   @Controller
   public class AuthorizedController {@Autowiredprivate AccessTokenDTO accessTokenDTO;@Autowiredprivate GiteeProvider giteeProvider;/*** 获取application.properties中定义的第三方应用的属性*/@Value("${gitee.client.id}")private String clientId;@Value("${gitee.client.secret}")private String clientSecret;@Value("${gitee.redirect.uri}")private String clientRedirectUri;@GetMapping("/callback")public String callback(@RequestParam(name = "code") String code,@RequestParam(name = "code") String state) {//为accessTokenDTO对象赋值accessTokenDTO.setClient_id(clientId);accessTokenDTO.setClient_secret(clientSecret);accessTokenDTO.setCode(code);accessTokenDTO.setRedirect_uri(clientRedirectUri);accessTokenDTO.setState(state);//将accessTokenDTO对象作为参数传入以获取用户的accessTokenString accessToken = giteeProvider.getAccessToken(accessTokenDTO);//使用GetUser方法将携带的accessToken链接发送至Gitee服务器获取用户的信息GiteeUser user = giteeProvider.getUser(accessToken);System.out.println(user.getName());System.out.println(user.getId());System.out.println(user.getBio());//重定向返回首页return "redirect:/";}
   }
   

6. 获取的JSON对象转为指定的实体类对象，这个类定义如下

   package com.coderforum.community.dto;/*** @Author: xuehai.XUE* @MailBox: xuehai.xue@qq.com* @Date: 2021/4/2 13:33* @Description: 用于传回JSON格式的用户，解析为这个目标类*/
   public class GiteeUser {private String name;private Long id;private String bio;public String getName() {return name;}public void setName(String name) {this.name = name;}public Long getId() {return id;}public void setId(Long id) {this.id = id;}public String getBio() {return bio;}public void setBio(String bio) {this.bio = bio;}
   }
   

5.相关链接

1. Gitee Oauth文档
2. 在Gitee中创建第三方应用
3. okhttp官网
4. 在MVNREPOSITORY中的fastjson
5. 在Gitee中测试得到的token是否能够获取用户信息

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