小程序端验签response编码问题

coolstore-partner-webc/src/main/java/com/cool/store/config/SignValidateFilter.java

@@ -112,6 +112,7 @@ public class SignValidateFilter implements Filter {
             // 前后端验签不等
             if (!newSign.equals(sign)) {
                 response.setStatus(HttpStatus.OK.value());
+                response.setContentType("application/json;charset=UTF-8");
                 response.getWriter().write(JSON.toJSONString(ResponseResult.fail(ErrorCodeEnum.SIGN_FAIL)));
                 return;
             }