SpringBoot登陆Github，获取登陆信息

骑猪看日落 2023-02-11 10:15 2阅读 0赞

### 一.在GitHub上面申请应用 ###

[https://github.com/settings/developers][https_github.com_settings_developers]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMzMzcxNzY2_size_16_color_FFFFFF_t_70][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMzMzcxNzY2_size_16_color_FFFFFF_t_70 1][]

以上就是项目地址的配置，申请好之后就会生成**clientId**和**clientSecret**，如图：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMzMzcxNzY2_size_16_color_FFFFFF_t_70 2][]

### 二.创建springboot项目 ###

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMzMzcxNzY2_size_16_color_FFFFFF_t_70 3][]

**1.pom.xml**

<?xml version="1.0" encoding="UTF-8"?>
    <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
             xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
        <modelVersion>4.0.0</modelVersion>
        <parent>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-parent</artifactId>
            <version>2.3.0.RELEASE</version>
            <relativePath/> 
        </parent>
        <groupId>com.cxb</groupId>
        <artifactId>oauth2</artifactId>
        <version>0.0.1-SNAPSHOT</version>
        <name>oauth2</name>
        <description>Demo project for Spring Boot</description>
    
        <properties>
            <java.version>1.8</java.version>
        </properties>
    
        <dependencies>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-thymeleaf</artifactId>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-web</artifactId>
            </dependency>
    
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-test</artifactId>
                <scope>test</scope>
                <exclusions>
                    <exclusion>
                        <groupId>org.junit.vintage</groupId>
                        <artifactId>junit-vintage-engine</artifactId>
                    </exclusion>
                </exclusions>
            </dependency>
    
            
            <dependency>
                <groupId>com.squareup.okhttp</groupId>
                <artifactId>okhttp</artifactId>
                <version>2.7.5</version>
            </dependency>
    
    
            
            <dependency>
                <groupId>com.alibaba</groupId>
                <artifactId>fastjson</artifactId>
                <version>1.2.68</version>
            </dependency>
    
            <dependency>
                <groupId>org.projectlombok</groupId>
                <artifactId>lombok</artifactId>
            </dependency>
    
        </dependencies>
    
        <build>
            <plugins>
                <plugin>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-maven-plugin</artifactId>
                </plugin>
            </plugins>
        </build>
    
    </project>

**2.application.yml 主要配置页面和项目的端口号**

spring:
      thymeleaf:
        prefix: classpath:/templates/
        suffix: .html
        cache: false
    server:
      port: 8090

**3.HttpHelper**

package com.cxb.oauth2.helper;
    
    import com.squareup.okhttp.*;
    import org.springframework.stereotype.Component;
    
    import java.io.IOException;
    
    @Component
    public class HttpHelper {
        public String Get(String url) {
            OkHttpClient client = new OkHttpClient();
    
            Request request = new Request.Builder()
                    .url(url)
                    .build();
            try {
                Response response = client.newCall(request).execute();
                return response.body().string();
            } catch (IOException e) {
                e.printStackTrace();
            }
            return null;
        }
    
        public String Post(String url, String json) {
            OkHttpClient client = new OkHttpClient();
            MediaType mediaType = MediaType.parse("application/json; charset=utf-8");
            RequestBody body = RequestBody.create(mediaType, json);
            Request request = new Request.Builder()
                    .url(url)
                    .post(body)
                    .build();
            try {
                Response response = client.newCall(request).execute();
                return response.body().string();
            } catch (IOException e) {
                e.printStackTrace();
            }
            return null;
        }
    }

**4.AuthController**

package com.cxb.oauth2.web;
    
    import com.alibaba.fastjson.JSON;
    import com.cxb.oauth2.helper.HttpHelper;
    
    import org.springframework.beans.factory.annotation.Autowired;
    
    import org.springframework.stereotype.Controller;
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.RequestParam;
    import org.springframework.web.bind.annotation.ResponseBody;
    
    import java.util.HashMap;
    import java.util.Map;
    
    
    @Controller
    public class AuthController {
    
        @Autowired
        private HttpHelper httpHelper;
    
        String client_id = "70b0503b92ada105ca14";
        String client_secret = "3ce52d25b52c325d5b0013a2092fcde1285865ac";
    
        @RequestMapping("/callback")
        @ResponseBody
        public String callback(@RequestParam("code") String code) {
            //1.code参数为github回调callback_uri时，github传递过来的
            System.out.println("请求callback...,code:" + code);
            Map<String,Object> map = new HashMap<>();
            map.put("client_id",client_id);
            map.put("client_secret",client_secret);
            map.put("code",code);
            map.put("redirect_url","http://localhost:8090");
            map.put("state", "test");
            //获取access token
            String url = "https://github.com/login/oauth/access_token";
            String json = JSON.toJSONString(map);
            //2.根据传入的参数（包含code），post请求https://github.com/login/oauth/access_token，获取返回值
            String result = httpHelper.Post(url, json);//access_token=your_client_id&scope=user&token_type=bearer
            System.out.println("callback result:" + result);
    
            String[] strs = result.split("&");
            String access_token = strs[0].split("=")[1];//解析access_token
    
            //3.根据access token,请求https://api.github.com/user获取用户信息
            String url_user = "https://api.github.com/user?access_token=" + access_token;
            String userInfo = httpHelper.Get(url_user);
            System.out.println("userInfo:" + userInfo);//返回的是一个json字符串
            return userInfo;
        }
    }

**5.LoginController**

package com.cxb.oauth2.web;
    
    import org.springframework.stereotype.Controller;
    import org.springframework.web.bind.annotation.GetMapping;
    
    @Controller
    public class LoginController {
    
        @GetMapping("/index")
        public String index() {
            return "index";
        }
    }

**6.index.html 这里将client\_id和****redirect\_uri和应用里面的值对应起来。**

<!DOCTYPE html>
    <html lang="en">
    <head>
        <meta charset="UTF-8">
        <title>Title</title>
    </head>
    <body>
    <a href="https://github.com/login/oauth/authorize?client_id=70b0503b92ada105ca14&redirect_uri=http://localhost:8090/callback&state=test&scope=user">授权github登录</a>
    </body>
    </html>

**7.测试，启动项目**

![20200522222223960.png][]

点击授权登陆

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMzMzcxNzY2_size_16_color_FFFFFF_t_70 4][]

点击授权，最后返回该账户对应的所有的信息。

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMzMzcxNzY2_size_16_color_FFFFFF_t_70 5][]

搞定！

[https_github.com_settings_developers]: https://github.com/settings/developers
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[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMzMzcxNzY2_size_16_color_FFFFFF_t_70 1]: https://img-blog.csdnimg.cn/20200522221100141.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMzMzcxNzY2,size_16,color_FFFFFF,t_70
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[20200522222223960.png]: https://img-blog.csdnimg.cn/20200522222223960.png
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