Java实现第三方登录

package com.thirdPartyLogin.adapter; import com.alibaba.fastjson.JSONObject; import com.thirdPartyLogin.pojo.UserInfo; import com.thirdPartyLogin.service.UserService; import com.thirdPartyLogin.utils.HttpClientUtils; import org.springframework.beans.factory.annotation.Value; import org.springframework.http.HttpMethod; import org.springframework.stereotype.Component; import java.util.Date; /** * @Author YZK * @Date 2024/3/14 * @Desc */ @Component public class Login3rdAdapter extends UserService implements Login3rdTarget { @Value("${gitee.state}") private String giteeState; @Value("${gitee.token.url}") private String giteeTokenUrl; @Value("${gitee.user.url}") private String giteeUserUrl; @Value("${gitee.user.prefix}") private String giteeUserPrefix; @Value("${gitee.client_id}") private String giteeClient_id; @Value("${gitee.client_secret}") private String giteeClient_secret; @Value("${gitee.callback}") private String giteeCallBack; @Override public String loginByGitee(String code, String state) { //进行state判断，state的值是前端与后端商定好的，前端将State传给Gitee平台，Gitee平台回传state给回调接口 // if (!giteeState.equals(state)) { // throw new UnsupportedOperationException("Invalid state!"); // } //请求Gitee平台获取token，并携带code String replace = giteeTokenUrl .replace("client_id=?", "client_id=" + giteeClient_id) .replace("client_secret=?", "client_secret=" + giteeClient_secret) .replace("redirect_uri=?", "redirect_uri=" + giteeCallBack); String tokenUrl = replace.concat(code); JSONObject tokenResponse = HttpClientUtils.execute(tokenUrl, HttpMethod.POST); String token = String.valueOf(tokenResponse.get("access_token")); System.out.println(token); //请求用户信息，并携带 token String userUrl = giteeUserUrl.concat(token); JSONObject userInfoResponse = HttpClientUtils.execute(userUrl, HttpMethod.GET); //获取用户信息，userName添加前缀 GITEE@, 密码保持与userName一致。讨论过程请参见2.3小节 String userName = giteeUserPrefix.concat(String.valueOf(userInfoResponse.get("name"))); String password = userName; //“自动注册” 和登录功能，此处体现了方法的 “复用” return autoRegister3rdAndLogin(userName, password); } private String autoRegister3rdAndLogin(String userName, String password) { //如果第三方账号已经登录过，则直接登录 if (super.checkUserExists(userName)) { return super.login(userName, password); } UserInfo userInfo = new UserInfo(); userInfo.setUserName(userName); userInfo.setUserPassword(password); userInfo.setCreateDate(new Date()); //如果第三方账号是第一次登录，先进行“自动注册” super.register(userInfo); //自动注册完成后，进行登录 return super.login(userName, password); } @Override public String loginByWechat(String... params) { return null; } @Override public String loginByQQ(String... params) { return null; } }