org.apache.commons.lang.StringUtils 工具类的使用

package org.apache.commons.lang; 18 19 import java.util.ArrayList; 20 import java.util.Collection; 21 import java.util.Iterator; 22 import java.util.List; 23 import java.util.Locale; 24 25 import org.apache.commons.lang.text.StrBuilder; 26 27 /** 28

/** * */ package com.dsj.gdbd.utils.web; import org.apache.commons.lang3.time.DateFormatUtils; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.*; import java.util.regex.Matcher; /** * 日期工具类, 继承org.apache.commons.l

转自 http://my.oschina.net/zenglingfan/blog/134872 写代码的时候,经常会碰到需要把一个List中的每个元素,按逗号分隔转成字符串的需求,以前是自己写一段比较难看的代码,先把字符串拼出来,再把最后面多余的逗号去掉:虽然功能可以实现,但总觉得最后加的那一步操作很没有必要: public static String join(List<String> list, String seperator){ if(list.isEmpty()){ return

最近遇到了很多的问题,所以我要记录下来,记录自己的成长过程. 要在工程的lib文件夹中导入commons.lang.2.6的jar包. 下载地址:http://commons.apache.org/proper/commons-lang/download_lang.cgi 原文地址:https://www.cnblogs.com/kevin-lee123/p/9246666.html

CollectionUtils提供很多对集合的操作方法,常用的方法如下 import org.apache.commons.collections.CollectionUtils; import java.util.ArrayList; import java.util.List; public class CollectionUtilsTest {      public static void main(String[] args) {         List<Integer> a = 

org.apache.commons.lang Class StringUtils java.lang.Object org.apache.commons.lang.StringUtils public class StringUtilsextends Object Operations on String that are null safe. IsEmpty/IsBlank - checks if a String contains text Trim/Strip - removes lea

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今天在练习怎样SSH中进行单元測试的时候出现下列异常: SEVERE: Exception starting filter Struts2 java.lang.NoClassDefFoundError: org/apache/commons/lang3/StringUtils at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.register(XmlConfigurationProvider.java:211

1.java.lang.NoClassDefFoundError: org/apache/commons/lang3/StringUtils 缺少类 2. There is no Action mapped for namespace [/] and action name [indexjsp] associated with context path [/test1Struts2]. - [unknown location]莫名其妙就好了,不知错在哪了,不过我把jsp文件删了,重新建的,有谁知