diff --git a/laws-modules/src/main/java/com/jero/modules/laws/standard/controller/LawsPartNameController.java b/laws-modules/src/main/java/com/jero/modules/laws/standard/controller/LawsPartNameController.java
index f6ec64bb..fd78a752 100644
--- a/laws-modules/src/main/java/com/jero/modules/laws/standard/controller/LawsPartNameController.java
+++ b/laws-modules/src/main/java/com/jero/modules/laws/standard/controller/LawsPartNameController.java
@@ -16,6 +16,7 @@ import org.springframework.web.bind.annotation.*;
 
 import javax.annotation.Resource;
 import java.util.List;
+import java.util.Map;
 
 /**
  * @author: Mzaxd
@@ -44,9 +45,8 @@ public class LawsPartNameController {
     @AutoLog(value = "企业标准-零部件树选中回显")
     @ApiOperation(value = "企业标准-零部件树选中回显", notes = "企业标准-零部件树选中回显")
     @PostMapping("/echo")
-    public Result<List<PartName>> queryEcho(@RequestParam(name = "selectNodeCodes", required = false, defaultValue = "")
-                                                          @ApiParam("选中的节点名称") String selectNodeCodes) {
-        List<PartName> list = partNameService.queryEcho(selectNodeCodes);
+    public Result<List<PartName>> queryEcho(@RequestBody Map<String, String> selectNodeCodes) {
+        List<PartName> list = partNameService.queryEcho(selectNodeCodes.get("selectNodeCodes"));
         return Result.OK(list);
     }