扫码登录二维码

server/like-front/src/main/java/com/mdd/front/config/FrontConfig.java

@@ -28,6 +28,8 @@ public class FrontConfig {
             "/api/article/category",
             "/api/article/detail",
             "/api/article/list",
+
+            "/api/login/getScanCode"
     };
 
 }

server/like-front/src/main/java/com/mdd/front/controller/LoginController.java

@@ -11,6 +11,10 @@ import org.springframework.validation.annotation.Validated;
 import org.springframework.web.bind.annotation.*;
 
 import javax.annotation.Resource;
+import javax.servlet.http.HttpSession;
+import java.io.UnsupportedEncodingException;
+import java.net.URLEncoder;
+import java.util.LinkedHashMap;
 import java.util.Map;
 
 /**
@@ -104,4 +108,12 @@ public class LoginController {
         return AjaxResult.success();
     }
 
+    @GetMapping("/getScanCode")
+    public AjaxResult<Map<String, String>> getScanCode(HttpSession session) {
+        String qrcodeUrl = iLoginService.getScanCode(session);
+        Map<String, String> map = new LinkedHashMap<>();
+        map.put("url", qrcodeUrl);
+        return AjaxResult.success(map);
+    }
+
 }

server/like-front/src/main/java/com/mdd/front/service/ILoginService.java

@@ -3,6 +3,7 @@ package com.mdd.front.service;
 import com.mdd.front.validate.UserRegisterValidate;
 import com.mdd.front.vo.LoginTokenVo;
 
+import javax.servlet.http.HttpSession;
 import java.util.Map;
 
 /**
@@ -71,4 +72,5 @@ public interface ILoginService {
      */
     void forgotPassword(Map<String, String> params);
 
+    String getScanCode(HttpSession session);
 }

server/like-front/src/main/java/com/mdd/front/service/impl/LoginServiceImpl.java

@@ -17,6 +17,7 @@ import com.mdd.front.config.FrontConfig;
 import com.mdd.front.service.ILoginService;
 import com.mdd.front.validate.UserRegisterValidate;
 import com.mdd.front.vo.LoginTokenVo;
+import jdk.nashorn.internal.runtime.regexp.joni.Config;
 import lombok.extern.slf4j.Slf4j;
 import me.chanjar.weixin.common.api.WxConsts;
 import me.chanjar.weixin.common.bean.oauth2.WxOAuth2AccessToken;
@@ -27,6 +28,9 @@ import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
 import javax.annotation.Resource;
+import javax.servlet.http.HttpSession;
+import java.io.UnsupportedEncodingException;
+import java.net.URLEncoder;
 import java.util.Map;
 
 /**
@@ -414,6 +418,36 @@ public class LoginServiceImpl implements ILoginService {
         userMapper.updateById(user);
     }
 
+    @Override
+    public String getScanCode(HttpSession session) {
+        // 获取AppId
+        String appId = ConfigUtils.get("op_channel", "appId", "");
+
+        // 微信开放平台授权
+        String baseUrl = "https://open.weixin.qq.com/connect/qrconnect" +
+                "?appid=%s" +
+                "&redirect_uri=%s" +
+                "&response_type=code" +
+                "&scope=snsapi_login" +
+                "&state=%s" +
+                "#wechat_redirect";
+
+        // 回调地址
+        String redirectUrl = "https://www.baidu.com/";
+        try {
+            redirectUrl = URLEncoder.encode(redirectUrl, "UTF-8");
+        } catch (UnsupportedEncodingException e) {
+            throw new OperateException(e.getMessage());
+        }
+
+        // 防止csrf攻击
+        String state = ToolsUtils.makeUUID().replaceAll("-", "");
+        RedisUtils.set("wechat-open-state-"+session.getId(), state, 600);
+
+        //生成qrcodeUrl
+        return String.format(baseUrl, appId, redirectUrl, state);
+    }
+
     /**
      * 生成用户编号
      *