动感超人的专栏

public static String getIpAddr(HttpServletRequest request) {           String ip = request.getHeader("X-Forwarded-For");           if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(

package com.test;import java.util.ArrayList;import java.util.Collections;import java.util.Comparator;import java.util.List;public class NewsManager { /** * @param args */

package com.test;import java.util.ArrayList;import java.util.List;public class ListSplit { /**  * @param args  */ public static void main(String[] args) {    List list=new ArrayList(

/**  * 替换字符串  * @param isCase 是否区分大小写  * @param source 源字符串  * @param oldstring 待替换旧字符串  * @param newstring 新字符串  * @return 替换后的字符串  */ public static String replaceString(Boolean isCas

import org.apache.commons.logging.Log;import org.apache.commons.logging.LogFactory;import java.io.*;import java.util.regex.Pattern;public class FileUtil { private static final Log LOG = LogF

//当前时间毫秒数    Long current_time1=System.currentTimeMillis();    //结束时间毫秒数  Long  end_time2=1337875200000l;    //计算时间差   Long time2=end_time2-current_time1;                //转换为秒数

前台页面： String path = request.getContextPath();String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";%>      ">        My JSP '

1. 新建TestServlet类package com.yanek.test;import java.io.IOException;import java.lang.reflect.Method;import javax.servlet.ServletException;import javax.servlet.http.HttpServlet;import javax.

面向接口编程的例子，生活中的实例来说明接口的概念，对理解java接口有很大帮助！