update 优化 代码生成器

ruoyi-modules/ruoyi-gen/src/main/java/org/dromara/gen/controller/GenController.java

@@ -56,7 +56,7 @@ public class GenController extends BaseController {
         GenTable table = genTableService.selectGenTableById(tableId);
         List<GenTable> tables = genTableService.selectGenTableAll();
         List<GenTableColumn> list = genTableService.selectGenTableColumnListByTableId(tableId);
-        Map<String, Object> map = new HashMap<String, Object>();
+        Map<String, Object> map = new HashMap<>();
         map.put("info", table);
         map.put("rows", list);
         map.put("tables", tables);

ruoyi-modules/ruoyi-gen/src/main/java/org/dromara/gen/util/VelocityUtils.java

@@ -109,7 +109,7 @@ public class VelocityUtils {
      * @return 模板列表
      */
     public static List<String> getTemplateList(String tplCategory) {
-        List<String> templates = new ArrayList<String>();
+        List<String> templates = new ArrayList<>();
         templates.add("vm/java/domain.java.vm");
         templates.add("vm/java/vo.java.vm");
         templates.add("vm/java/bo.java.vm");