修改删除字典的业务

src/main/java/com/stylefeng/guns/modular/system/controller/DictController.java

 package com.stylefeng.guns.modular.system.controller;
 
+import com.baomidou.mybatisplus.mapper.EntityWrapper;
+import com.baomidou.mybatisplus.mapper.Wrapper;
 import com.stylefeng.guns.common.annotion.log.BussinessLog;
 import com.stylefeng.guns.common.controller.BaseController;
 import com.stylefeng.guns.common.exception.BizExceptionEnum;
@@ -116,7 +118,15 @@ public class DictController extends BaseController {
     @RequestMapping(value = "/delete/{dictId}")
     @ResponseBody
     public Object delete(@PathVariable("dictId") Integer dictId) {
+
+        //删除这个字典的子词典
+        Wrapper<Dict> dictEntityWrapper = new EntityWrapper<>();
+        dictEntityWrapper = dictEntityWrapper.eq("pid", dictId);
+        dictMapper.delete(dictEntityWrapper);
+
+        //删除这个词典
         dictMapper.deleteById(dictId);
+
         return SUCCESS_TIP;
     }
 }