add

qiaoba-commons/qiaoba-common-web/src/main/java/com/qiaoba/common/web/utils/ResponseUtil.java

@@ -20,6 +20,7 @@ public class ResponseUtil {
     public static void response(HttpServletResponse response, String msg) throws IOException {
         response.setStatus(HttpServletResponse.SC_OK);
         response.setContentType(ContentType.JSON.getValue());
+        response.setCharacterEncoding("UTF-8");
         PrintWriter writer = response.getWriter();
         writer.write(msg);
         writer.close();