From 2d118eeb914586c4407e50050e602e1b24aea68d Mon Sep 17 00:00:00 2001 From: 13693261870 <252740454@qq.com> Date: 星期三, 28 九月 2022 14:00:20 +0800 Subject: [PATCH] 1 --- src/main/java/com/lf/server/helper/StringHelper.java | 18 +++++++++++++----- 1 files changed, 13 insertions(+), 5 deletions(-) diff --git a/src/main/java/com/lf/server/helper/StringHelper.java b/src/main/java/com/lf/server/helper/StringHelper.java index 8509337..0eaed3e 100644 --- a/src/main/java/com/lf/server/helper/StringHelper.java +++ b/src/main/java/com/lf/server/helper/StringHelper.java @@ -81,13 +81,23 @@ } /** - * 瀛楃涓诧紝鏄惁涓虹┖ + * 瀛楃涓诧紝鏄惁涓簄ull鎴�"" + * + * @param str + * @return + */ + public static boolean isNull(String str) { + return null == str || str.length() == 0; + } + + /** + * 瀛楃涓�,鏄惁涓虹┖null鍜岀┖鏍� * * @param str * @return */ public static boolean isEmpty(String str) { - return null == str || str.length() == 0; + return str == null || "".equals(str.trim()); } /** @@ -97,8 +107,6 @@ * @return */ public static String capitalize(String str) { - String f = str.charAt(0) + ""; - - return f.toUpperCase() + str.substring(1); + return String.valueOf(str.charAt(0)).toUpperCase() + str.substring(1); } } -- Gitblit v1.9.3