原生java代碼實現碼云第三方驗證登錄的示例代碼
研究了QQ，碼云，微信等第三方登錄接口時，發現QQ以及微信第一步都需要驗證授權管理，而且個人測試需要提供手持身份證一張，并且驗證時間過長( 3天工作日左右吧 )，這樣會非常浪費大家學習第三方接口登錄的時間，終于， 在我的不屑努力下，找到了適合大家快速上手，測試第三方接口登錄的平臺-————碼云（看網上帖子說某WX接入還要開發者認證，人民幣300元）碼云鏈接地址https://gitee.com/
一、在碼云上創建應用1、在碼云上注冊一個賬號，點擊右上角設置
很多同學不太了解什么是應用回調地址webhooks（第三方登錄成功后，會返回到你指定的地址，并且攜帶驗證是否成功的參數信息）
clientId和client Sercret的主要作用是通過拼接得到請求地址，將地址重定向至授權登錄頁面
準備過程已完成
二、在項目中實現第三方登錄大概流程
<!--servlet服務--><dependency> <groupId>javax.servlet</groupId> <artifactId>javax.servlet-api</artifactId> <version>3.1.0</version> </dependency><!--第三方登錄插件包--> <dependency> <groupId>me.zhyd.oauth</groupId> <artifactId>JustAuth</artifactId> <version>1.3.2</version> </dependency><!--服務器發送get，post工具包--> <dependency> <groupId>org.apache.httpcomponents</groupId> <artifactId>httpclient</artifactId> <version>4.5.2</version> </dependency>2、跳轉授權頁面
AuthRequest authRequest = new AuthGiteeRequest(AuthConfig.builder().clientId(CLIENT_ID) //Client ID.clientSecret(CLIENT_SECRET) //Client Secret.redirectUri(REDIRECTURI) //回調地址.build());String authorizeUrl = authRequest.authorize(AuthStateUtils.createState());//跳轉到授權頁面response.sendRedirect(authorizeUrl);3、通過回調地址獲取到code值
//http://localhost:8080/login?actionName=giteeCode&code=e063730161cd40cf&state=25c74eba2ac5f String code = request.getParameter('code');4、再將用戶授權碼發送碼云服務器
補充一個小小的坑，碼云第三方驗證需要加上header信息，否則會報403錯誤
String url = 'https://gitee.com/oauth/token?grant_type=authorization_code&code='+code+'&client_id='+CLIENT_ID+'&redirect_uri='+REDIRECTURI+'&client_secret='+CLIENT_SECRET;Map<String,String> map = new HashMap<>();map.put('User-Agent','Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.36)');JSONObject s = HttpUtils.post(url,map);
授權登錄失敗會返回message錯誤信息，標識登錄失敗
成功:
{'access_token':'e386e20327b7c4','refresh_token':'057c79c2d1f957a5cb4d','scope':'user_info','created_at':15488,'token_type':'bearer','expires_in':86400}5、獲取碼云用戶信息
通過授權碼獲取到的json數據，其中access_token參數，可以訪問碼云的用戶數據
//https://gitee.com/api/v5/user?access_token=*******String access_token = s.getString('access_token');String url2 = 'https://gitee.com/api/v5/user?access_token='+access_token;JSONObject user = HttpUtils.get(url2,map);//1、設置響應類型輸出流response.setContentType('application/json;charset=UTF-8');//2、將json轉為字符串String str = JSON.toJSONString(user);//3、得到字符輸出流response.getWriter().write(str);
源碼：在這小編要說一下回調地址操作1和回調地址操作2的區別操作1：小編使用的是服務器的get,post發送請求，而跳轉“授權頁面”（giteeLogin 方法）使用的是插件，各位看主大大也可手動改為get請求，跳轉第三方登錄頁面，具體get地址請參考碼云oauth文檔其中A和B步驟，修改后就可以不用插件代碼跳轉授權頁面
操作2：完全使用的是JustAuth插件實現第三方登錄
import com.alibaba.fastjson.JSON;import com.alibaba.fastjson.JSONObject;import com.shsxt.utils.HttpUtils;import me.zhyd.oauth.config.AuthConfig;import me.zhyd.oauth.model.AuthCallback;import me.zhyd.oauth.model.AuthResponse;import me.zhyd.oauth.request.AuthGiteeRequest;import me.zhyd.oauth.request.AuthRequest;import me.zhyd.oauth.utils.AuthStateUtils;import org.apache.http.client.ClientProtocolException;import org.apache.http.client.methods.HttpPost;import org.apache.http.client.methods.HttpRequestBase;import org.apache.http.impl.client.CloseableHttpClient;import org.apache.http.impl.client.HttpClients;import org.apache.http.util.EntityUtils;import javax.servlet.ServletException;import javax.servlet.annotation.WebServlet;import javax.servlet.http.HttpServlet;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import java.io.IOException;import java.io.UnsupportedEncodingException;import java.util.HashMap;import java.util.Map;@WebServlet('/login')public class LoginServlet extends HttpServlet { private static final long serialVersionUID = 1L; //ac85a173bb89ee private final String CLIENT_ID = “Client ID” private final String CLIENT_SECRET= “Client Secret” private final String REDIRECTURI = “回調地址” protected void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {//獲取用戶行為String actionName = request.getParameter('actionName');//判斷用戶行為if('giteeLogin'.equals(actionName)) { //如果發送碼云授權驗證 giteeLogin(request,response);}else if('giteeCode'.equals(actionName)) { //giteeCode(request,response); giteeCode2(request,response);}System.out.println('點擊了'); } /** * 回調地址后的操作1 * @param request * @param response */ private void giteeCode(HttpServletRequest request, HttpServletResponse response) throws IOException {//獲取codeString code = request.getParameter('code');String url = 'https://gitee.com/oauth/token?grant_type=authorization_code&code='+code+'&client_id='+CLIENT_ID+'&redirect_uri='+REDIRECTURI+'&client_secret='+CLIENT_SECRET;Map<String,String> map = new HashMap<>();map.put('User-Agent','Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.36)');JSONObject s = HttpUtils.post(url,map);System.out.println(s);//https://gitee.com/api/v5/user?access_token=*******String access_token = s.getString('access_token');String url2 = 'https://gitee.com/api/v5/user?access_token='+access_token;JSONObject user = HttpUtils.get(url2,map);//1、設置響應類型輸出流response.setContentType('application/json;charset=UTF-8');//2、將json轉為字符串String str = JSON.toJSONString(user);//3、得到字符輸出流response.getWriter().write(str); } /** * 回調地址后的操作2 * @param request * @param response */ private void giteeCode2(HttpServletRequest request, HttpServletResponse response) throws IOException { String code = request.getParameter('code');AuthRequest authRequest = new AuthGiteeRequest(AuthConfig.builder().clientId(CLIENT_ID) //Client ID.clientSecret(CLIENT_SECRET) //Client Secret.redirectUri(REDIRECTURI) //回調地址.build());AuthResponse json = authRequest.login(code);System.out.println(json); } /** * 跳轉授權頁面 * @param request * @param response */ private void giteeLogin(HttpServletRequest request, HttpServletResponse response) throws IOException {//跳轉授權頁面AuthRequest authRequest = new AuthGiteeRequest(AuthConfig.builder().clientId(CLIENT_ID) //Client ID.clientSecret(CLIENT_SECRET) //Client Secret.redirectUri(REDIRECTURI) //回調地址.build());String authorizeUrl = authRequest.authorize();//跳轉到授權頁面response.sendRedirect(authorizeUrl); }}
服務器發送get/post請求工具類
package com.shsxt.utils;import com.alibaba.fastjson.JSON;import com.alibaba.fastjson.JSONObject;import org.apache.http.client.ClientProtocolException;import org.apache.http.client.methods.HttpGet;import org.apache.http.client.methods.HttpPost;import org.apache.http.client.methods.HttpRequestBase;import org.apache.http.impl.client.CloseableHttpClient;import org.apache.http.impl.client.HttpClients;import org.apache.http.util.EntityUtils;import java.io.IOException;import java.io.UnsupportedEncodingException;import java.util.Map;import java.util.Set;public class HttpUtils { /* *發送簡單post請求 */ public static JSONObject post(String url) {HttpPost post = new HttpPost(url);return getResult(post); } /* *發送帶Header的post請求 */ public static JSONObject post(String url, Map<String, String> map) {HttpPost post = new HttpPost(url);if (!map.isEmpty()) { Set<Map.Entry<String, String>> entrys = map.entrySet(); for (Map.Entry<String, String> entry : entrys) {post.setHeader(entry.getKey(), entry.getValue()); }}return getResult(post); } /* *發送帶Header的get請求 */ public static JSONObject get(String url, Map<String, String> map) {HttpGet get = new HttpGet(url);if (!map.isEmpty()) { Set<Map.Entry<String, String>> entrys = map.entrySet(); for (Map.Entry<String, String> entry : entrys) {get.setHeader(entry.getKey(), entry.getValue()); }}return getResult(get); } /* *發送簡單的get請求 */ public static JSONObject get(String url) {HttpGet get = new HttpGet(url);return getResult(get); } /* *發送請求方法，請求響應為JSONObject */ private static JSONObject getResult(HttpRequestBase requestBase) {CloseableHttpClient httpClient = HttpClients.createDefault();String result = null;try { result = EntityUtils.toString(httpClient.execute(requestBase).getEntity()); result = new String(result.getBytes('ISO-8859-1'),'utf-8'); httpClient.close();} catch (UnsupportedEncodingException e1) { e1.printStackTrace();} catch (ClientProtocolException e1) { e1.printStackTrace();} catch (IOException e1) { e1.printStackTrace();} finally { return new JSONObject(JSON.parseObject(result));} } /* *當請求響應為String時 */ public static String getString(String url) {CloseableHttpClient httpClient = HttpClients.createDefault();HttpGet get = new HttpGet(url);String result = null;try { result = EntityUtils.toString(httpClient.execute(get).getEntity()); httpClient.close();} catch (UnsupportedEncodingException e1) { e1.printStackTrace();} catch (ClientProtocolException e1) { e1.printStackTrace();} catch (IOException e1) { e1.printStackTrace();} finally { return result;} }}```*當請求響應為String時 */ public static String getString(String url) {CloseableHttpClient httpClient = HttpClients.createDefault();HttpGet get = new HttpGet(url);String result = null;try { result = EntityUtils.toString(httpClient.execute(get).getEntity()); httpClient.close();} catch (UnsupportedEncodingException e1) { e1.printStackTrace();} catch (ClientProtocolException e1) { e1.printStackTrace();} catch (IOException e1) { e1.printStackTrace();} finally { return result;} }}前端頁面
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