fix gencode

src/main/java/com/izouma/awesomeAdmin/web/GenCodeController.java

@@ -39,20 +39,20 @@ public class GenCodeController {
 //            File file = ResourceUtils.getFile("classpath:genjson");
         File file = new File(genJsonPath);
         File[] fs = file.listFiles();    //遍历path下的文件和目录，放在File数组中
-        for (File f : fs) {                    //遍历File[]数组
-            if (!f.isDirectory()) {//若非目录(即文件)，则打印
-                System.out.println(f);
-                reader = new BufferedReader(new FileReader(f));
-                Gson gson = new GsonBuilder().create();
-
-                GenCode genCode = gson.fromJson(reader, GenCode.class);
-                genCodeList.add(genCode);
-
+        if (fs != null) {
+            for (File f : fs) {                    //遍历File[]数组
+                if (!f.isDirectory()) {//若非目录(即文件)，则打印
+                    System.out.println(f);
+                    reader = new BufferedReader(new FileReader(f));
+                    Gson gson = new GsonBuilder().create();
+
+                    GenCode genCode = gson.fromJson(reader, GenCode.class);
+                    genCodeList.add(genCode);
+                    reader.close();
+                }
             }
         }
 
-        reader.close();
-
         return genCodeList;
     }