增加简化版返回结果DTO的构建

common/src/main/java/com/jpsoft/employment/modules/common/dto/MessageResultBuilder.java

@@ -9,4 +9,12 @@ public class MessageResultBuilder {
     public static <T>  MessageResult<T> error(String msg){
         return new MessageResult<T>(false,msg,null,500);
     }
+    
+    public static  MessageResultSimple success(Object data){
+        return new MessageResultSimple(true,null,data,200);
+    }
+
+    public static  MessageResultSimple failed(String msg){
+        return new MessageResultSimple(false,msg,null,500);
+    }
 }