回显数据字典防止空值报错

ruoyi-modules/ruoyi-system/src/main/java/com/ruoyi/system/controller/SysDictDataController.java

@@ -1,6 +1,7 @@
 package com.ruoyi.system.controller;
 
 import java.io.IOException;
+import java.util.ArrayList;
 import java.util.List;
 import javax.servlet.http.HttpServletResponse;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -14,6 +15,7 @@ import org.springframework.web.bind.annotation.RequestBody;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RestController;
 import com.ruoyi.common.core.utils.SecurityUtils;
+import com.ruoyi.common.core.utils.StringUtils;
 import com.ruoyi.common.core.utils.poi.ExcelUtil;
 import com.ruoyi.common.core.web.controller.BaseController;
 import com.ruoyi.common.core.web.domain.AjaxResult;
@@ -75,7 +77,12 @@ public class SysDictDataController extends BaseController
     @GetMapping(value = "/type/{dictType}")
     public AjaxResult dictType(@PathVariable String dictType)
     {
-        return AjaxResult.success(dictTypeService.selectDictDataByType(dictType));
+        List<SysDictData> data = dictTypeService.selectDictDataByType(dictType);
+        if (StringUtils.isNull(data))
+        {
+            data = new ArrayList<SysDictData>();
+        }
+        return AjaxResult.success(data);
     }
 
     /**