随笔分类 -  java

摘要：1 import java.util.HashMap; 2 import java.util.Map; 3 import java.util.Random; 4 5 6 7 public class Test { 8 9 //String 可以为任意类型 也可以自定义类型10 static Map keyChanceMap = new HashMap();11 static{12 keyChanceMap.put("出现比例为10的", 10);13 keyChanceMap.put("出现比例为100的", 100);14 ... 阅读全文

摘要：采用Maven管理，Spring Mvc Jpa等技术pom.xml 4.0.0 com.wiker springSecurity war 0.0.1-SNAPSHOT springSecurity Maven Webapp http://maven.apache.org 0.9.1.2 2.0.8 1.1 2.1-rev6 3.2.3.RELEASE 2.5 1.1 1.1 1.4 1.3... 阅读全文

摘要：TestScoket.java单例模式实现，继承Socket 1 public class TestSocket 2 extends Socket { 3 4 private static TestSocket instance; 5 6 private TestSocket() { 7 } 8 9 private TestSocket(String ip,int port) throws UnknownHostException, IOException{10 super(ip,port);11 ... 阅读全文

摘要：今天在做一个java调用windows的压缩命令时遇到一奇怪问题代码如下：String cmd ="C:/Program Files (x86)/WinRAR/rar.exe a c:/test.rar c:/test.log"; //System.out.println(cmd);Process proc = Runtime.getRuntime().exec(cmd);以上代码在Xp，win7，windows server2003执行完全正常发现将代码转移到Windows Server2008之后，直接提示java异常。经过二小... 阅读全文

摘要：@RequestMapping(value = "test", method = { RequestMethod.GET, RequestMethod.POST }) @ResponseBody public String getMenuByParentId(Model model, String parentId) { List list = menuService.getByParentId(Long.valueOf(parentId)); StringBuffer sb = new StringBuffer(); ... 阅读全文

摘要：1 package com.yw.ie; 2 3 import java.awt.*; 4 import java.io.IOException; 5 import java.net.URL; 6 import javax.swing.*; 7 import java.awt.event.*; 8 import javax.swing.event.*; 9 10 public class WebBrowser extends JFrame{11 12 JPanel contentPane;13 BorderLayout borderLayoutAll=new BorderLayout(... 阅读全文