feat-获取用户功能demo

src/main/java/cn/dcsy/stsy/controllers/BasicController.java

@@ -24,7 +24,7 @@ public class BasicController {
     /**
      * 网站主页
      */
-//    @GetMapping("/**")
+    @GetMapping("/index")
     public ResponseEntity<BaseResponse> index() {
         log.info("访问主页");
         BaseResponse response = new BaseResponse("欢迎", 200, "Success", "这是故事管理系统主页");
@@ -40,4 +40,15 @@ public class BasicController {
         return userService.login(username, password);
     }
 
+    @GetMapping("/user/{userId}")
+    public ResponseEntity<BaseResponse> getUserCurrent(@PathVariable String userId) {
+        log.info("获取用户 {}", userId);
+        if (!userId.matches("^[0-9]+$")) {
+            return ResponseEntity.status(403).body(
+                    new BaseResponse("PathValueError", 40301, "参数错误", null)
+            );
+        }
+        return userService.getUserInfo(userId);
+    }
+
 }

src/main/java/cn/dcsy/stsy/dao/UserDAO.java

@@ -21,4 +21,10 @@ public class UserDAO {
         log.info("\t> Mysql 读取");
         return userMapper.getPasswordByUsername(userName);
     }
+
+    public UserDemoDO getUserById(String userId) {
+        log.info("[DAO] 执行 getUserById 方法");
+        log.info("\t> Mysql 读取");
+        return userMapper.getUserById(Long.parseLong(userId));
+    }
 }

src/main/java/cn/dcsy/stsy/mappers/UserMapper.java

@@ -12,4 +12,7 @@ import org.apache.ibatis.annotations.Select;
 public interface UserMapper {
     @Select("SELECT * FROM stories_system.user_demo WHERE username = #{username}")
     UserDemoDO getPasswordByUsername(String username);
+
+    @Select("SELECT * FROM stories_system.user_demo WHERE id = #{userId}")
+    UserDemoDO getUserById(long userId);
 }

src/main/java/cn/dcsy/stsy/service/UserService.java

@@ -9,4 +9,6 @@ import org.springframework.http.ResponseEntity;
  */
 public interface UserService {
     ResponseEntity<BaseResponse> login(String username, String password);
+
+    ResponseEntity<BaseResponse> getUserInfo(String userId);
 }

src/main/java/cn/dcsy/stsy/service/impl/UserServiceImpl.java

@@ -22,10 +22,10 @@ public class UserServiceImpl implements UserService {
     @Override
     public ResponseEntity<BaseResponse> login(String username, String password) {
         UserDemoDO userDemoDO = userDAO.getPasswordByUserName(username);
-        log.info(String.valueOf(userDemoDO));
         if (userDemoDO != null){
+            log.info(userDemoDO.toString());
             if (userDemoDO.getPassword().equals(password)){
-                BaseResponse response = new BaseResponse("登录成功", 200, "Success", "用户已登录");
+                BaseResponse response = new BaseResponse("登录成功", 200, "Success", userDemoDO);
                 return ResponseEntity.ok(response);
             } else {
                 BaseResponse response = new BaseResponse("登录失败", 404, "Error", "密码错误");
@@ -36,4 +36,18 @@ public class UserServiceImpl implements UserService {
             return ResponseEntity.status(404).body(response);
         }
     }
+
+    @Override
+    public ResponseEntity<BaseResponse> getUserInfo(String userId) {
+        UserDemoDO getUser = userDAO.getUserById(userId);
+        if (getUser != null) {
+            return ResponseEntity.ok().body(
+                    new BaseResponse("Success", 200, "获取成功", getUser)
+            );
+        } else {
+            return ResponseEntity.status(404).body(
+                    new BaseResponse("UserNotExist", 40401, "用户不存在", null)
+            );
+        }
+    }
 }