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RSS订阅原创 java set 过滤 重复对象
package vo;public class User { private int id; private String name; private String password; public User(int id, String name, String password) { super(); this.id = id; th...
2013-05-15 20:24:41
668
原创 oracle resource
oracle resourceselect * from (select rownum as rn,e1.* from (select * from emp) e1 where rownum=5;/** * @param args */ public static void main(String[] args) { try{ //Classs.forNa...
2013-02-21 21:43:39
168
原创 clear bat
@echo off color 0atitle windows7系统垃圾清理---echo....清理系统垃圾文件，请稍等...... echo 清理垃圾文件，速度由电脑文件大小而定。在没看到结尾信息时 echo 请勿关闭本窗口。 echo 正在清除系统垃圾文件，请稍后...... echo 删除补丁备份目录 RD %windir%\$hf_mig$ /Q /S ...
2013-01-02 22:06:11
343
原创 cache
/** * $RCSfile: Cache.java,v $ * $Revision: 1.5 $ * $Date: 2002/05/10 21:53:20 $ * * Copyright (C) 1999-2002 CoolServlets, Inc. All rights reserved. * * This software is the proprietary ...
2012-11-28 17:21:58
145
原创 StringUtil
package util;import java.util.ArrayList;import java.util.List;/** * * */public class StringUtil { /*** * * @param s 要匹配的字符窜 如:aaa${user}bbb${people.name}cccc${people.ag...
2012-11-19 09:23:39
106
原创 freemarker的例子
test.ftl Welcome! Welcome ${user} ! Our latest product: ${latestProduct.name}Test.javapackage test;import freemarker.template.*;import java.util.*;import java.io.*;...
2012-11-08 10:20:58
122
原创 FileUtil
package util;import java.io.BufferedReader;import java.io.File;import java.io.FileInputStream;import java.io.FileOutputStream;import java.io.FileReader;import java.io.IOException;impor...
2012-10-26 17:21:30
213
原创 动态update sql
update test1 e1 set name=(select key from test2 e2 where e1.ID=e2.ID) where ID in(select b.ID from (select * from test1) a join (select * from test2) b on a.ID=b.ID);
2012-07-30 08:45:43
236
原创 获取request的参数
package servlet;import java.io.IOException;import javax.servlet.ServletConfig;import javax.servlet.ServletException;import javax.servlet.http.HttpServlet;import javax.servlet.http.HttpSe...
2012-07-19 22:19:13
194
原创 jfreechart 中文乱码
package util;import java.awt.Font;import org.jfree.chart.JFreeChart;import org.jfree.chart.axis.CategoryAxis;import org.jfree.chart.axis.ValueAxis;import org.jfree.chart.plot.CategoryPlo...
2012-06-29 10:39:58
139
原创 maven pom 设置outputDirectory,maven-antrun-plugin,maven-resources-plugin
src/main/java target/A/lib/classes org.apache.maven.plugins maven-antrun-plugin createThriftDir process-resources ...
2012-06-01 11:49:50
1967
原创 java 设计模式
http://java.chinaitlab.com/special/patterns/Index.htmlhttp://java.chinaitlab.com/model/768909_2.html
2012-05-03 10:37:22
96
原创 java与maven的环境变量配置
JAVA_HOME:C:\Program Files\Java\jdk1.6.0_14CLASSPATH:.JAVA_OPTS:-Xms256m -Xmx512m -XX:MaxNewSize=256m -XX:MaxPermSize=256mMAVEN_HOME:E:\apache-maven-3.0.3MAVEN_OPTS:-Xmn128m -Xms256m -Xmx768m -XX:Pe...
2012-04-13 07:45:27
135
原创 maven 配置Hibernate
1.首先在maven仓库里,自己安装oracle驱动包到maven本地mvn install:install-file -Dfile=D:\ojdbc6_g.jar -DgroupId=com.oracle -DartifactId=ojdbc6 -Dversion=1.0 -Dpackaging=jar 2.pom文件如下:<project xmlns="http://ma...
2012-04-12 10:55:52
131
原创 Hibernate 多对多
package model;import java.io.Serializable;import java.util.HashSet;import java.util.Set;//订单public class Order implements Serializable { private static final long serialVersionUID = 1L; private ...
2012-04-10 16:37:35
96
原创 Hibernate 外键一对一
package model;import java.io.Serializable;public class User implements Serializable { private static final long serialVersionUID = 1L; private Integer id; private String username; private Strin...
2012-04-08 10:07:08
98
原创 Hibernate 单向一对多
package model;import java.io.Serializable;import java.util.HashSet;import java.util.Set;//产品分类表public class Category implements Serializable { private static final long serialVersionUID = 1L; priva...
2012-04-07 15:37:36
77
原创 Hiberntae 双向一对多
package model;import java.io.Serializable;import java.util.HashSet;import java.util.Set;//产品分类表public class Category implements Serializable { private static final long serialVersionUID = 1L; priva...
2012-04-07 15:30:02
76
原创 Hibernate 单向多对一
package model;import java.io.Serializable;//产品分类表public class Category implements Serializable { private static final long serialVersionUID = 1L; private Integer id; private String name; private...
2012-04-07 09:58:33
92
原创 java web 定向
request.setAttribute("username", username); request.setAttribute("password", password);RequestDispatcher rd=request.getRequestDispatcher("/Login.jsp"); rd.forward(request, response); //re...
2011-06-12 15:07:30
89
原创 sql server 排序规则
select * from BillTemplate where bidSegment_id='73' order by CHARINDEX(SUBSTRING(billId,1,1),'0123456789'),CHARINDEX(SUBSTRING(billId,2,1),'0123456789'),CHARINDEX(SUBSTRING(billId,3,1),'0123456789'),C...
2011-06-12 11:20:32
172
原创 解决服务推的seeion超时的办法
就是在session超时,发送有错误的javascript的代码,如:public static String ShowObj(String s){ String str="<!doctype html public \"-//w3c//dtd html 4.0 transitional//en\">" + "<html><head><s...
2011-06-07 21:25:01
131
原创 InputStream转换为File
InputStream ins = (new AnnexXML()).getClass().getResourceAsStream("../../annexInternet.xml"); File f=new File("annexInternet.xml"); inputstreamtofile(ins, f); public static void inputstreamtof...
2011-05-31 17:47:20
3923
原创 动态改变首页
package https.filter;import java.io.IOException;import javax.servlet.Filter;import javax.servlet.FilterChain;import javax.servlet.FilterConfig;import javax.servlet.ServletContext;import javax.serv...
2011-05-28 10:24:06
123
原创 poi读取excel
package atest;import java.io.FileInputStream;import java.io.InputStream;import org.apache.poi.hssf.usermodel.HSSFCell;import org.apache.poi.hssf.usermodel.HSSFRow;import org.apache.poi.hssf.usermode...
2011-05-14 10:12:23
85
原创 sql server exec sp_executesql的用法
declare @sql nvarchar(4000)set @sql='select * from Action'exec sp_executesql @sqlgo
2011-05-03 11:28:56
179
原创 Graphics2D设置背景色
package test;import java.awt.AlphaComposite;import java.awt.Color;import java.awt.Font;import java.awt.Graphics2D;import java.awt.image.BufferedImage;import java.io.File;import javax.imageio.Image...
2011-04-17 16:35:56
5549
原创 java的rgb表示
//11.覆盖filterRGB方法,对图像像素进行过滤 @Override public int filterRGB(int x, int y, int rgb) { /*DirectColorModel cm=(DirectColorModel)ColorModel.getRGBdefault(); int alpha=cm.getAlpha(rgb); int red=cm.getRe...
2011-04-15 22:37:47
941
原创 EditorGridPanel的sm设置
Ext.onReady(function(){ Ext.BLANK_IMAGE_URL = 'images/s.gif'; Ext.QuickTips.init(); var genres = new Ext.data.SimpleStore({ fields: ['id', 'genre'], data : [['1','Comedy'],['2'...
2011-04-13 11:23:15
153
原创 ext grid的getSelectionModel的使用例子
tbar:[{ text:"Change Title", handler:function(){ var sm=grid.getSelectionModel(); if(sm.hasSelection()){ var ...
2011-04-07 17:05:10
462
原创 json转换成对象
String JsonText=request.getParameter("JsonText").toString(); JsonText=java.net.URLDecoder.decode(JsonText,"UTF-8"); JSONArray ja=new JSONArray(); ja=JSONArray.fromObject(JsonText); for(int i=0;i&l...
2011-04-01 17:06:49
72
原创 jsp,js中文乱码解决方法
前台:"data="+encodeURIComponent(encodeURIComponent(Ext.encode(jsonArray))) 后台:data=URLDecoder.decode(data, "UTF-8");
2011-03-26 14:48:24
135
原创 extjs继承原有对象
Ext.namespace("Ext.dojochina");//使用命名空间 Ext.dojochina.Person=function(_cfg){ //Person的构造函数,使用对象来构造 Ext.apply(this,_cfg); }; var p=new Ext.dojochina.Person({name:'CRT',sex:'male'...
2011-03-23 10:57:28
94
原创 JavaScript中将String转换为对象
var obj="{region:'center',split:true,border:true,id:'main'}"; obj=eval("("+obj+")");//将字符转换为对象
2011-03-22 14:44:10
149
原创 extjs的导航树的简单例子
Ext.onReady(function(){ Ext.QuickTips.init(); var tree=new Ext.tree.TreePanel({ // el:"tree" }); var root=new Ext.tree.TreeNode({text:'项目信息'}); var node=new Ext.tree.TreeNode({ ...
2011-03-21 17:30:24
183
空空如也
请问怎样用javascript将json对象怎样传到后台servlet,后台怎样解释
2009-06-18
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