diff --git a/src/main/java/com/bonus/autoweb/UI/frame/StringHelper.java b/src/main/java/com/bonus/autoweb/UI/frame/StringHelper.java
new file mode 100644
index 0000000..915eb63
--- /dev/null
+++ b/src/main/java/com/bonus/autoweb/UI/frame/StringHelper.java
@@ -0,0 +1,30 @@
+package com.bonus.autoweb.UI.frame;
+
+public class StringHelper {
+	public static boolean isEmpty(String str) {
+		if (str == null || str.trim().equals("") || str.trim().equals("null")) {
+			return true;
+		}
+		return false;
+	}
+	/**
+	 * 判断字符串 不为空
+	 */
+	public static boolean isNotEmpty(String str) {
+		return !isEmpty(str);
+	}
+
+	public static boolean isEmptyAndNull(String str) {
+		if (str == null || str.trim().equals("") || str.trim().equals("null")) {
+			return true;
+		}
+		return false;
+	}
+	public static String fillPrefixZero(int v, int len) {
+		String vStr = v + "";
+		while (vStr.length() < len) {
+			vStr = "0" + vStr;
+		}
+		return vStr;
+	}
+}
\ No newline at end of file