修改退款申请封装

cash-common/cash-common-tools/src/main/java/com/czg/resp/CzgResult.java

@@ -59,4 +59,8 @@ public class CzgResult<T> implements Serializable {
     public static <T> CzgResult<T> failure(CzgRespCode respCode) {
         return new CzgResult<>(respCode.getCode(), respCode.getMsg(), null);
     }
+
+    public boolean isSuccess() {
+        return code == 200;
+    }
 }