修复了统一返回类在使用返回成功方法且只有返回类做参数时,返回空的错误

src/main/java/com/muyu/common/core/domain/Result.java

@@ -65,7 +65,7 @@ public class Result<T> implements Serializable {
     }
 
     public static <T> Result<T> success (T data) {
-        return restResult(null, SUCCESS, "操作成功");
+        return restResult(data, SUCCESS, "操作成功");
     }
 
     public static <T> Result<T> success (T data, String msg) {