Oauth2.0认证原理

Oauth2.0 认证协议

Oauth2.0 应用场景： 微信联合登录     授权管理  

互联网开放平台互相调用保证安全

    微信提供api  给toov5调用  然后就可以获取一些微信的信息  比如微信头像

    开放平台有 支付宝  微信 百度等等

    不同的开放平台 对接的oauth2.0协议流程都是相同，无非接口地址不同

  

Oauth2.0原理 (appId appsecret access_token  openId  回调地址 授权地址)

使用：

   在微信开放平台申请对应的appId信息

    toov5生成登录授权连接

    用于在确认微信登录之后  跳转回到回调地址（配置域名权限）

    获取到授权码 使用授权码获取对应的accessToken（调用腾讯借口权限）

    使用accessToken+openId获取用户相关信息 （openid 开放userId）

  

配置 授权访问连接： 通过controller跳转到 腾讯的连接

用户点击确定登录时候  进入到callback，并且获取到前面返回的code

拿到code 后面就可以获取到相应的 token 和 id了

 第一步：用户同意授权，获取code
2 第二步：通过code换取网页授权access_token
3 第三步：刷新access_token（如果需要）
4 第四步：拉取用户信息(需scope为 snsapi_userinfo)
5 附：检验授权凭证（access_token）是否有效

maven:

<parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.0.0.RELEASE</version>
    </parent>
    <dependencies>



        <!-- SpringBoot 对lombok 支持 -->
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
        </dependency>

        <!-- SpringBoot web 核心组件 -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-tomcat</artifactId>
        </dependency>
        <!-- SpringBoot 外部tomcat支持 -->
        <dependency>
            <groupId>org.apache.tomcat.embed</groupId>
            <artifactId>tomcat-embed-jasper</artifactId>
        </dependency>

        <!-- springboot-log4j -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-log4j</artifactId>
            <version>1.3.8.RELEASE</version>
        </dependency>
        <!-- springboot-aop 技术 -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-aop</artifactId>
        </dependency>
        <!-- https://mvnrepository.com/artifact/commons-lang/commons-lang -->
        <dependency>
            <groupId>commons-lang</groupId>
            <artifactId>commons-lang</artifactId>
            <version>2.6</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/org.apache.httpcomponents/httpclient -->
        <dependency>
            <groupId>org.apache.httpcomponents</groupId>
            <artifactId>httpclient</artifactId>
        </dependency>
        <!-- https://mvnrepository.com/artifact/com.alibaba/fastjson -->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
            <version>1.2.47</version>
        </dependency>

        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>jstl</artifactId>
        </dependency>
        <dependency>
            <groupId>taglibs</groupId>
            <artifactId>standard</artifactId>
            <version>1.1.2</version>
        </dependency>
    </dependencies>

yml:

spring:
  mvc:
    view:
      # 页面默认前缀目录
      prefix: /WEB-INF/jsp/
      # 响应页面默认后缀
      suffix: .jsp
      
appid: wx5c43fde3c9733d9e
secret: b8b217126c33a5fb7074927d5e72a81a
redirectUri: http://127.0.0.1:8080/callback
### 生成微信授权   官方提供的授权接口
authorizedUrl: https://open.weixin.qq.com/connect/oauth2/authorize?appid=APPID&redirect_uri=REDIRECT_URI&response_type=code&scope=snsapi_userinfo&state=STATE#wechat_redirect
###获取code后，请求以下链接获取access_token
access_token: https://api.weixin.qq.com/sns/oauth2/access_token?appid=APPID&secret=SECRET&code=CODE&grant_type=authorization_code
###拉取用户信息(需scope为 snsapi_userinfo)
userinfo: https://api.weixin.qq.com/sns/userinfo?access_token=ACCESS_TOKEN&openid=OPENID&lang=zh_CN

Controller:

import javax.servlet.http.HttpServletRequest;

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.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

import com.alibaba.fastjson.JSONObject;
import com.itmayiedu.base.BaseApiService;
import com.itmayiedu.utils.HttpClientUtils;
import com.itmayiedu.utils.WeiXinUtils;

@Controller
public class OauthController extends BaseApiService {

    @Autowired
    private WeiXinUtils weiXinUtils;
    private String errorPage = "errorPage";

    // 生成授权链接
    @RequestMapping("/authorizedUrl")
    public String authorizedUrl() {
        System.out.println(weiXinUtils.getAuthorizedUrl());
        return "redirect:" + weiXinUtils.getAuthorizedUrl();   //重定向到微信的开放平台地址
    }

    // 微信授权回调地址
    @RequestMapping("/callback")
    public String callback(String code, HttpServletRequest request) {
        // 1.使用Code 获取 access_token
        String accessTokenUrl = weiXinUtils.getAccessTokenUrl(code);
        JSONObject resultAccessToken = HttpClientUtils.httpGet(accessTokenUrl);
        boolean containsKey = resultAccessToken.containsKey("errcode");

        if (containsKey) {
            request.setAttribute("errorMsg", "系统错误!");
            return errorPage;
        }
        // 2.使用access_token获取用户信息
        String accessToken = resultAccessToken.getString("access_token");
        String openid = resultAccessToken.getString("openid");
        // 3.拉取用户信息(需scope为 snsapi_userinfo)
        String userInfoUrl = weiXinUtils.getUserInfo(accessToken, openid);
        JSONObject userInfoResult = HttpClientUtils.httpGet(userInfoUrl);
        System.out.println("userInfoResult:" + userInfoResult);
        request.setAttribute("nickname", userInfoResult.getString("nickname"));
        request.setAttribute("city", userInfoResult.getString("city"));
        request.setAttribute("headimgurl", userInfoResult.getString("headimgurl"));
        return "info";
    }

}

Base:

import org.springframework.stereotype.Component;

import com.itmayiedu.utils.Constants;

@Component
public class BaseApiService {

    public ResponseBase setResultError(Integer code, String msg) {
        return setResult(code, msg, null);
    }

    // 返回错误，可以传msg
    public ResponseBase setResultError(String msg) {
        return setResult(Constants.HTTP_RES_CODE_500, msg, null);
    }

    // 返回成功，可以传data值
    public ResponseBase setResultSuccessData(Object data) {
        return setResult(Constants.HTTP_RES_CODE_200, Constants.HTTP_RES_CODE_200_VALUE, data);
    }

    public ResponseBase setResultSuccessData(Integer code, Object data) {
        return setResult(code, Constants.HTTP_RES_CODE_200_VALUE, data);
    }

    // 返回成功，沒有data值
    public ResponseBase setResultSuccess() {
        return setResult(Constants.HTTP_RES_CODE_200, Constants.HTTP_RES_CODE_200_VALUE, null);
    }

    // 返回成功，沒有data值
    public ResponseBase setResultSuccess(String msg) {
        return setResult(Constants.HTTP_RES_CODE_200, msg, null);
    }

    // 通用封装
    public ResponseBase setResult(Integer code, String msg, Object data) {
        return new ResponseBase(code, msg, data);
    }

}

import lombok.Getter;
import lombok.Setter;
import lombok.extern.slf4j.Slf4j;

@Getter
@Setter
@Slf4j
public class ResponseBase {

    private Integer rtnCode;
    private String msg;
    private Object data;

    public ResponseBase() {

    }

    public ResponseBase(Integer rtnCode, String msg, Object data) {
        super();
        this.rtnCode = rtnCode;
        this.msg = msg;
        this.data = data;
    }

    public static void main(String[] args) {
        ResponseBase responseBase = new ResponseBase();
        responseBase.setData("123456");
        responseBase.setMsg("success");
        responseBase.setRtnCode(200);
        System.out.println(responseBase.toString());
        log.info("itmayiedu...");
    }

    @Override
    public String toString() {
        return "ResponseBase [rtnCode=" + rtnCode + ", msg=" + msg + ", data=" + data + "]";
    }

}

Entity:

public class AppEntity {

    private long id;
    private String appId;
    private String appName;
    private String appSecret;
    private String accessToken;
    private String redirectUri;
    private int isFlag;

    public long getId() {
        return id;
    }

    public void setId(long id) {
        this.id = id;
    }

    public String getAppId() {
        return appId;
    }

    public void setAppId(String appId) {
        this.appId = appId;
    }

    public String getAppName() {
        return appName;
    }


    public void setAppName(String appName) {
        this.appName = appName;
    }

    public String getAppSecret() {
        return appSecret;
    }


    public void setAppSecret(String appSecret) {
        this.appSecret = appSecret;
    }

    public int getIsFlag() {
        return isFlag;
    }


    public void setIsFlag(int isFlag) {
        this.isFlag = isFlag;
    }

    public String getAccessToken() {
        return accessToken;
    }

    
    public void setAccessToken(String accessToken) {
        this.accessToken = accessToken;
    }

    public String getRedirectUri() {
        return redirectUri;
    }


    public void setRedirectUri(String redirectUri) {
        this.redirectUri = redirectUri;
    }

}

import lombok.Getter;
import lombok.Setter;
import lombok.extern.slf4j.Slf4j;

@Getter
@Setter
@Slf4j
public class ResponseBase {

    private Integer rtnCode;
    private String msg;
    private Object data;

    public ResponseBase() {

    }

    public ResponseBase(Integer rtnCode, String msg, Object data) {
        super();
        this.rtnCode = rtnCode;
        this.msg = msg;
        this.data = data;
    }

    public static void main(String[] args) {
        ResponseBase responseBase = new ResponseBase();
        responseBase.setData("123456");
        responseBase.setMsg("success");
        responseBase.setRtnCode(200);
        System.out.println(responseBase.toString());
        log.info("itmayiedu...");
    }

    @Override
    public String toString() {
        return "ResponseBase [rtnCode=" + rtnCode + ", msg=" + msg + ", data=" + data + "]";
    }

}

Util:

public interface Constants {
    // 响应请求成功
    String HTTP_RES_CODE_200_VALUE = "success";
    // 系统错误
    String HTTP_RES_CODE_500_VALUE = "fial";
    // 响应请求成功code
    Integer HTTP_RES_CODE_200 = 200;
    // 系统错误
    Integer HTTP_RES_CODE_500 = 500;
    // 未关联QQ账号
    Integer HTTP_RES_CODE_201 = 201;
    // 发送邮件
    String MSG_EMAIL = "email";
    // 会员token
    String TOKEN_MEMBER = "TOKEN_MEMBER";
    // 支付token
    String TOKEN_PAY = "TOKEN_pay";
    // 支付成功
    String PAY_SUCCESS = "success";
    // 支付白
    String PAY_FAIL = "fail";
    // 用户有效期 90天
    Long TOKEN_MEMBER_TIME = (long) (60 * 60 * 24 * 90);
    int COOKIE_TOKEN_MEMBER_TIME = (60 * 60 * 24 * 90);
    Long PAY_TOKEN_MEMBER_TIME = (long) (60 * 15);
    // cookie 会员 totoken 名称
    String COOKIE_MEMBER_TOKEN = "cookie_member_token";

}

import java.io.IOException;

import org.apache.http.HttpEntity;
import org.apache.http.HttpStatus;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.alibaba.fastjson.JSONObject;


public class HttpClientUtils {
    private static Logger logger = LoggerFactory.getLogger(HttpClientUtils.class); // 日志记录

    private static RequestConfig requestConfig = null;

    static {
        // 设置请求和传输超时时间
        requestConfig = RequestConfig.custom().setSocketTimeout(2000).setConnectTimeout(2000).build();
    }


    public static JSONObject httpPost(String url, JSONObject jsonParam) {
        // post请求返回结果
        CloseableHttpClient httpClient = HttpClients.createDefault();
        JSONObject jsonResult = null;
        HttpPost httpPost = new HttpPost(url);
        // 设置请求和传输超时时间
        httpPost.setConfig(requestConfig);
        try {
            if (null != jsonParam) {
                // 解决中文乱码问题
                StringEntity entity = new StringEntity(jsonParam.toString(), "utf-8");
                entity.setContentEncoding("UTF-8");
                entity.setContentType("application/json");
                httpPost.setEntity(entity);
            }
            CloseableHttpResponse result = httpClient.execute(httpPost);
            // 请求发送成功，并得到响应
            if (result.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {
                String str = "";
                try {
                    // 读取服务器返回过来的json字符串数据
                    str = EntityUtils.toString(result.getEntity(), "utf-8");
                    // 把json字符串转换成json对象
                    jsonResult = JSONObject.parseObject(str);
                } catch (Exception e) {
                    logger.error("post请求提交失败:" + url, e);
                }
            }
        } catch (IOException e) {
            logger.error("post请求提交失败:" + url, e);
        } finally {
            httpPost.releaseConnection();
        }
        return jsonResult;
    }


    public static JSONObject httpPost(String url, String strParam) {
        // post请求返回结果
        CloseableHttpClient httpClient = HttpClients.createDefault();
        JSONObject jsonResult = null;
        HttpPost httpPost = new HttpPost(url);
        httpPost.setConfig(requestConfig);
        try {
            if (null != strParam) {
                // 解决中文乱码问题
                StringEntity entity = new StringEntity(strParam, "utf-8");
                entity.setContentEncoding("UTF-8");
                entity.setContentType("application/x-www-form-urlencoded");
                httpPost.setEntity(entity);
            }
            CloseableHttpResponse result = httpClient.execute(httpPost);
            // 请求发送成功，并得到响应
            if (result.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {
                String str = "";
                try {
                    // 读取服务器返回过来的json字符串数据
                    str = EntityUtils.toString(result.getEntity(), "utf-8");
                    // 把json字符串转换成json对象
                    jsonResult = JSONObject.parseObject(str);
                } catch (Exception e) {
                    logger.error("post请求提交失败:" + url, e);
                }
            }
        } catch (IOException e) {
            logger.error("post请求提交失败:" + url, e);
        } finally {
            httpPost.releaseConnection();
        }
        return jsonResult;
    }


    public static JSONObject httpGet(String url) {
        // get请求返回结果
        JSONObject jsonResult = null;
        CloseableHttpClient client = HttpClients.createDefault();
        // 发送get请求
        HttpGet request = new HttpGet(url);
        request.setConfig(requestConfig);
        try {
            CloseableHttpResponse response = client.execute(request);

            // 请求发送成功，并得到响应
            if (response.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {
                // 读取服务器返回过来的json字符串数据
                HttpEntity entity = response.getEntity();
                String strResult = EntityUtils.toString(entity, "utf-8");
                // 把json字符串转换成json对象
                jsonResult = JSONObject.parseObject(strResult);
            } else {
                logger.error("get请求提交失败:" + url);
            }
        } catch (IOException e) {
            logger.error("get请求提交失败:" + url, e);
        } finally {
            request.releaseConnection();
        }
        return jsonResult;
    }

}

import java.net.URLEncoder;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;
import org.springframework.web.bind.annotation.RequestMapping;


@Component
public class WeiXinUtils {
    @Value("${appid}")
    private String appId;
    @Value("${secret}")
    private String secret;
    @Value("${redirecturi}")
    private String redirectUri;
    @Value("${authorizedUrl}")
    private String authorizedUrl;
    @Value("${access_token}")
    private String accessToken;
    @Value("${userinfo}")
    private String userinfo;

    public String getAuthorizedUrl() {
        return authorizedUrl.replace("APPID", appId).replace("REDIRECT_URI", URLEncoder.encode(redirectUri));
    }

    public String getAccessTokenUrl(String code) {
        return accessToken.replace("APPID", appId).replace("SECRET", secret).replace("CODE", code);
    }

    public String getUserInfo(String accessToken, String openId) {
        return userinfo.replace("ACCESS_TOKEN", accessToken).replace("OPENID", openId);
    }

}

启动类：

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class AppOauth {

    public static void main(String[] args) {
        SpringApplication.run(AppOauth.class, args);
    }

}