通用类型处理

新增：
- BaseResponse
- ErrorCode
- ResultUtil

修改：
- UserController

src/main/java/com/jsl/oa/controllers/UserController.java

@@ -1,7 +1,16 @@
 package com.jsl.oa.controllers;
 
+import com.jsl.oa.utils.BaseResponse;
+import com.jsl.oa.utils.ErrorCode;
+import com.jsl.oa.utils.ResultUtil;
+import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.RestController;
 
 @RestController
 public class UserController {
+
+    @PostMapping("/user/register")
+    public BaseResponse userRegister() {
+        return ResultUtil.error(ErrorCode.WRONG_PASSWORD);
+    }
 }

src/main/java/com/jsl/oa/utils/BaseResponse.java

@@ -0,0 +1,27 @@
+package com.jsl.oa.utils;
+
+import com.fasterxml.jackson.annotation.JsonInclude;
+import lombok.Getter;
+
+@Getter
+@JsonInclude(JsonInclude.Include.NON_NULL)
+public class BaseResponse {
+    private final String output;
+    private final Integer code;
+    private final String message;
+    private final Object data;
+
+    public BaseResponse(String output, Integer code, String message, Object data) {
+        this.output = output;
+        this.code = code;
+        this.message = message;
+        this.data = data;
+    }
+
+    public BaseResponse(String output, Integer code, String message) {
+        this.output = output;
+        this.code = code;
+        this.message = message;
+        this.data = null;
+    }
+}

src/main/java/com/jsl/oa/utils/ErrorCode.java

@@ -0,0 +1,17 @@
+package com.jsl.oa.utils;
+
+import lombok.Getter;
+
+@Getter
+public enum ErrorCode {
+    WRONG_PASSWORD("WrongPassword", 40010, "密码错误");
+
+    private final String output;
+    private final Integer code;
+    private final String message;
+    ErrorCode(String output, Integer code, String message) {
+        this.output = output;
+        this.code = code;
+        this.message = message;
+    }
+}

src/main/java/com/jsl/oa/utils/ResultUtil.java

@@ -0,0 +1,20 @@
+package com.jsl.oa.utils;
+
+public class ResultUtil {
+
+    public static BaseResponse success() {
+        return new BaseResponse("Success", 200, "操作成功", null);
+    }
+
+    public static BaseResponse success(Object data) {
+        return new BaseResponse("Success", 200, "操作成功", data);
+    }
+
+    public static BaseResponse error(ErrorCode errorCode) {
+        return new BaseResponse(errorCode.getOutput(), errorCode.getCode(), errorCode.getMessage());
+    }
+
+    public static BaseResponse error(ErrorCode errorCode, Object data) {
+        return new BaseResponse(errorCode.getOutput(), errorCode.getCode(), errorCode.getMessage(), data);
+    }
+}