修改部分实现

lift-business-service/src/main/java/cn/com/ty/lift/business/contract/controller/ContractController.java

@@ -139,7 +139,7 @@ public class ContractController {
      * 导出合同数据
      */
     @PostMapping("export")
-    public  void export(ContractRequest contractRequest,HttpServletResponse response) {
+    public  void export(@RequestBody ContractRequest contractRequest,HttpServletResponse response) {
         contractService.export(contractRequest,response);
     }
 }