Excel导出功能

yzg-util-base/src/main/java/com/yanzuoguang/util/base/ObjectHelper.java

@@ -559,7 +559,7 @@ public class ObjectHelper {
     public static <T> ArrayList<T> getList(Class<T> cls, Object froms) {
         ArrayList<T> tos = new ArrayList<T>();
         if (froms instanceof List) {
-            List vCodeFrom = (List) ((froms instanceof List) ? froms : null);
+            List vCodeFrom = (List) ((froms instanceof List) ? froms : new ArrayList<>());
             for (Object from : vCodeFrom) {
                 if (StringHelper.isEmpty(from)) {
                     continue;

yzg-util-base/src/main/java/com/yanzuoguang/util/helper/ZipHelper.java

@@ -37,7 +37,10 @@ public class ZipHelper {
      * @Title: zipDirectory
      */
     public static void zipDirectory(File dirFile, File zipFile) throws IOException {
-        if (dirFile == null || !dirFile.isDirectory()) {
+        if (dirFile == null) {
+            throw new CodeException("压缩时文件夹对象不能为空。");
+        }
+        if (!dirFile.isDirectory()) {
             throw new CodeException("[" + dirFile.getName() + "]不是一个文件夹,或者不存在。");
         }
         if (zipFile == null) {