查询站点和组树状列表接口按行政区过滤逻辑，行政区接口逻辑完善等

fastbee-admin/src/main/java/com/fastbee/web/controller/system/SysDistrictController.java

@@ -5,6 +5,7 @@ import javax.servlet.http.HttpServletResponse;
 
 import io.swagger.annotations.Api;
 import io.swagger.annotations.ApiOperation;
+import org.springframework.data.repository.query.Param;
 import org.springframework.security.access.prepost.PreAuthorize;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.web.bind.annotation.GetMapping;
@@ -44,11 +45,21 @@ public class SysDistrictController extends BaseController
 //    @PreAuthorize("@ss.hasPermi('system:district:list')")
     @GetMapping("/tree")
     @ApiOperation("查询行政区划树状列表")
-    public AjaxResult tree(){
-        return success(sysDistrictService.selectSysDistrictTree());
+    public AjaxResult tree( Integer level){
+
+        return success(sysDistrictService.selectSysDistrictTree(level));
     }
 
-/**
+    /**
+     * 查询指定地区行政区划列表
+     */
+    @GetMapping("/tree-by-code")
+    @ApiOperation("查询指定地区行政区划列表")
+    public AjaxResult listByLevel(Long areaCode){
+        return success(sysDistrictService.selectSysDistrictTreeByCode(areaCode));
+    }
+
+    /**
  * 查询行政区划列表
  */
 @PreAuthorize("@ss.hasPermi('system:district:list')")