新增转租管理;

结构调整

src/main/java/com/gxwebsoft/tower/controller/TowerContractController.java

@@ -100,7 +100,7 @@ public class TowerContractController extends BaseController {
     @PutMapping()
     public ApiResult<?> update(@RequestBody TowerContract towerContract) {
         if (towerContractService.updateById(towerContract)) {
-            return success("修改成功");
+            return success(towerContract.getContractId());
         }
         return fail("修改失败");
     }