修改通用响应类，增加code。

并移除errrepository

src/main/java/co/jp/app/common/ApiResponse.java

@@ -1,59 +1,64 @@
 package co.jp.app.common;
 
-import java.util.Objects;
+import co.jp.app.common.ResultCode;
 
 public class ApiResponse<T> {
     private boolean success;
+    private int code;
     private String message;
     private T data;
 
-    public static <T> ApiResponse<T> success(T data) {
-
-        return new ApiResponse<>(true, null, data);
-    }
-
-    public static <T> ApiResponse<T> fail(String message) {
-
-        return new ApiResponse<>(false, message, null);
-    }
-
-    public ApiResponse() {
-    }
-
-    public ApiResponse(boolean success, String message, T data) {
-        this.success = success;
-        this.message = message;
+    private ApiResponse(ResultCode resultCode, T data) {
+        this.code = resultCode.getCode();
+        this.message = resultCode.getMessage();
+        this.success = (resultCode.getCode() == ResultCode.SUCCESS.getCode());
         this.data = data;
     }
 
+    public static <T> ApiResponse<T> success(T data) {
+        return new ApiResponse<>(ResultCode.SUCCESS, data);
+    }
+
+    public static <T> ApiResponse<T> success() {
+        return success(null);
+    }
+
+    public static <T> ApiResponse<T> fail(ResultCode resultCode) {
+        if (resultCode == ResultCode.SUCCESS) {
+
+            throw new IllegalArgumentException("Cannot use SUCCESS ResultCode for fail method. Use a specific error code.");
+        }
+        return new ApiResponse<>(resultCode, null);
+    }
+
+    public static <T> ApiResponse<T> fail(ResultCode resultCode, T data) {
+        if (resultCode == ResultCode.SUCCESS) {
+            throw new IllegalArgumentException("Cannot use SUCCESS ResultCode for fail method. Use a specific error code.");
+        }
+        return new ApiResponse<>(resultCode, data);
+    }
+
     public boolean isSuccess() {
         return success;
     }
 
-    public void setSuccess(boolean success) {
-        this.success = success;
+    public int getCode() {
+        return code;
     }
 
     public String getMessage() {
         return message;
     }
 
-    public void setMessage(String message) {
-        this.message = message;
-    }
-
     public T getData() {
         return data;
     }
 
-    public void setData(T data) {
-        this.data = data;
-    }
-
     @Override
     public String toString() {
         return "ApiResponse{" +
                 "success=" + success +
+                ", code=" + code +
                 ", message='" + message + '\'' +
                 ", data=" + data +
                 '}';