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1. beans.xml <?xml version="1.0" encoding="UTF-8" ?> <beans> <bean id="u" class="com.bjsxt.impl.UserDAOImpl" /> <bean id="userService" class="com.bjsxt.service.UserService"> <property name="userDAO" ...
一般情况有: 第一种:XML文件的改变 第二种:java类变化 (A.新增类 B.类方法增减 C.方法参数个数改变 D.类型与返回类型的改变) 知道这些可以在有些时候明白为什么修改了代码但结果没有变化。
这个分页的存储过程是转自互联网: http://kingmxj.javaeye.com/blog/438267 create or replace package package_page as type cursor_page is ref cursor; Procedure proc_page( p_tablename varchar2, --表名emp e p_tablecolumn varchar2, --查询列e.id,e.ename,e.job p_order varchar2, --排序e.ename desc p_pagesize Number, --每页 ...
package test; import java.io.BufferedReader; import java.io.File; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.IOException; import java.io.InputStreamReader; import java.io.Reader; import java.sql.Clob; import java.sql.Connection; import java.sql.Dr ...
/** * A)当用户调用pool = ConnectionPool.getInstance(username,password)方法时<br> * 执行构造方法--> 调用init()方法(1.读取配置文件中的driverClassName,url并设置, <br> * 2.创建Vector容器<br> * 3.addConn():通过driverClassName,url,username,password 向容器中添加Conn ...
1.将文件tom-cat-users.xml最后的注释去掉(否则会弹出输入用户名密码框): <tomcat-users> ...... <role rolename="tomcat"/> <role rolename="role1"/> <user username="tomcat" password="tomcat" roles="tomcat"/> <user username="both" passw ...
文件名: They don't care about us.txt [00:47.43]Situation, Aggravation, Everybody, Allegation [00:50.06]In the suite, On the news Everybody dog food Bang bang [00:53.61]Shock dead, Everybody's Gone mad [00:55.58]All I wanna say is that they don't really care about us [01:00.87]All I wanna say is th ...
import java.util.*; public class EmployeeTest2 { public static void main(String[] args) { Employee e = new Employee(); Date d = e.getHireDay();//e.hireDay和d引用同一个对象。 //由于指向同一个引用,所以e.getHirDay()访问器 //与修改后的Date d 指向同一个引用,而不是当前时间 d.setTime(d.getTime()+1000000000); System.out.p ...
class HelloWorld{ public static void main(String[] args){ HelloWorld hw = new HelloWorld(); hw.printError(); } void printError(){ Variable v = new Variable(); v.d = 123.0;//否则,破坏这个域值的捣乱者可能会出没在任何地方。 v.var(); } } class Variable{ public double d = 0;//请不要将成员变量定义成public ...
class test { final int i;//在构造对象之后 必须 已对常量初始化, //最好在定义时初始化常量 final int i = 0; //当对类使用final时,表示对象的引用不可变 //final String name; 不可变类 //final Date d; 可变类时表示对象的引用不可变 public static void main(String[] args) { test t = new test(123); test tt = new test(12);//此处创建了两个对象所以产生两个j } pu ...
class { publicActionForwardindex(ActionMappingmapping,ActionFormform, HttpServletRequestrequest,HttpServletResponseresponse){ Cookie[]cookies=request.getCookies(); if(null==request.getSession().getAttribute("userMsg")){ if(cookies!=null){ booleancookie=false; Stringu ...
一般情况下 js中得到background的image属性是: document.getElementById("").backgroundImage; 但是:repeat 确不一样 document.getElementById("").background.repeat;
/** *向前后推算时间正负都可以 *@paramdays *@return */ publicstaticStringtimeUtil(intdays){ SimpleDateFormatsd=newSimpleDateFormat("yyyy-MM-dd"); Calendarcalendar=Calendar.getInstance(); inti=calendar.get(Calendar.DAY_OF_YEAR); i=i+days; calendar.set(Calendar.DAY_OF_YEAR,i); ret ...
<% Stringstr="<ahref='#'>这是链接</a>Lkfd<fontcolor=/"red/"><h1>字体是红色</hr></font>"; request.setAttribute("str",str); %> <bean:writename="str"filter="true"/><br> <bean:writename=" ...
<% HashMaphm=newHashMap(); hm.put(1,"aa"); hm.put(2,"bb"); hm.put(3,"cc"); hm.put(4,"dd"); request.setAttribute("hm",hm); %> <logic:notEmptyname="hm"> <logic:iterateid="li"name="hm&quo ...
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