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把一个外部的目录映射成能供tomcat访问的虚拟目录   打开tomcat的安装路径--》conf下面找到server.xml 找到<host >标签 在host标签中添加<Context path="/my" docBase="c:/myVerturalList"/> /my 是供外部访问的虚拟目录,docBase是磁盘上面的真是文件夹,即存放供外部访问的资源文件夹  <Context path=" " docBase="c:/myVerturalL
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <title>Myindex.html</title> <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"> <meta http-equiv="desc ...
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如何使用Juery的日期插件  *  引入的       * 引入jquery的js类库        <script type="text/javascript" src="../js/jquery-1.4.2.js"></script>    * 引入日期插件的css样式        <link rel="stylesheet" href="./jquery.datepick.css" type="text/css">    * 引入日期插件的js文件   ...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <title>ddd</title> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <script language="JavaScript" src=" ...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <title>ddd</title> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <script language="JavaScript" src=". ...

Ajax

var createxmlHttpReq = function(){ var xmlHttpReq; try{ xmlHttpReq = new ActiveXObject("Msxml2.XMLHTTP"); }catch(e){ try{ xmlHttpReq = new ActiveXObject("Microsoft.XMLHTTP"); }catch(e){ } } return xmlHttpReq; }  
[code=&quot;java&quot;]public class Demo3 { @Test public void test1(){ Map map = new HashMap(); map.put(&quot;1&quot;,&quot;a&quot;); map.put(&quot;2&quot;,&quot;b&quot;); map.put(&quot;3&quot;,&quot;c&quot;); map.put(&quot;4&quot ...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <title>demo3.html</title> <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"> <meta http-equiv="description" ...
public class MySession { /** * 用反射实现的查找 */ public Object find(Class clazz,Object id){ try { //通过反射获取clazz的类名 QueryRunner query = new QueryRunner(); String className = clazz.getName(); String[] split = className.split("\\."); String tableName = split[split.le ...
import java.lang.annotation.Retention; import java.lang.annotation.RetentionPolicy; @Retention(RetentionPolicy.RUNTIME) public @interface myAnnotation { String name() default "abc"; } import java.lang.annotation.Annotation; @myAnnotation public class A { @myAnnotation publi ...
一、反射 1. 一段java代码在程序运行期间会经历三个阶段: source-->class-->runtime   2. Class 对象     在java中用一个Class对象来表示一个java类的class阶段     Class对象封装了一个java类中定义的成员变量、成员方法、构造方法、类名、包名等
package cn.itcast.proxy; import java.lang.reflect.InvocationHandler; import java.lang.reflect.Method; import java.lang.reflect.Proxy; import javax.servlet.http.HttpServletRequest; public class NameProxy implements InvocationHandler{ private HttpServletRequest request; public NamePro ...
import java.lang.reflect.Constructor;import java.lang.reflect.InvocationHandler;import java.lang.reflect.Method;import java.lang.reflect.Proxy; public class FactoryDao { @SuppressWarnings("unchecked") public static UserDao getUserDaoImpl(UserDao dao) throws Exception {  Class proxyClass = ...
public static void main(String[] args) throws Exception {   // 1.找服务器  Properties props = new Properties();  props.setProperty("mail.transport.protocol", "smtp");  props.setProperty("mail.host", "localhost");   // 2.登陆服务器  Session session = Session.getInstanc ...
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