Posted on 2007-07-27 13:50
天空苍茫 阅读(419)
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jsp学习 、
eclipse
最近由于struts2比较流行起来，我开始想学webwork2买了本书《webwork in action》中文版，但是却发现，讲解按照是2.1.7新的，现在都是2.2.6.了，变化最大(一个简单的helloworld例子：)
web.xml
<?xml version="1.0" encoding="GB18030"?>
<web-app version="2.4"
xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
<filter>
<filter-name>webwork</filter-name>
<filter-class>com.opensymphony.webwork.dispatcher.FilterDispatcher</filter-class>
</filter>
<filter-mapping>
<filter-name>webwork</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>
xwork.xml
<!DOCTYPE xwork PUBLIC "-//OpenSymphony Group//XWork 1.0//EN"
"http://www.opensymphony.com/xwork/xwork-1.0.dtd">
<xwork>
<include file="webwork-default.xml"></include>
<package name="default" extends="webwork-default">
<action name="helloWorld" class="cn.javaworker.yeming.action.HelloWorld">
<result name="success">index.jsp</result>
<result name="input">hello.jsp</result>
</action>
</package>
</xwork>
hello.jsp
<%@ taglib prefix="ww" uri="/webwork"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>Enter you name</title>
</head>
<body>
<ww:form action="helloWorld">
<ww:textfield label="please enter user name" name="name"></ww:textfield>
<input type="submit"/>
</ww:form>
<form action="helloWorld.action">
please enter you name:<input type="text" name="name" value="<ww:property value="name"/>"/>
<input type="submit">
</form>
</body>
</html>
index.jsp
<%@ taglib prefix="ww" uri="/webwork"%>
<html>
<head>
<title>hello page</title>
</head>
<body>
The message generated by my first action is :<ww:property value="message"/>
</body>
</html>
HelloWorld.java
package cn.javaworker.yeming.action;
import com.opensymphony.xwork.ActionSupport;
/**
* @author $author
*/
@SuppressWarnings("serial")
public class HelloWorld extends ActionSupport{
private String message;
private String name;
/**
* @see com.opensymphony.xwork.Action#execute()
*/
public String execute() throws Exception
{
if(name==null||name.equals("")||name.equals("world")){
addFieldError("name","blank names or names of 'world' are not allowed!");
return INPUT;
}
message ="hello "+name+"!\n";
message+="this is the time is: "+System.currentTimeMillis();
return SUCCESS;
}
/**
* @return the name
*/
public String getName() {
return name;
}
/**
* @param name the name to set
*/
public void setName(String name) {
this.name = name;
}
/**
* @return the message
*/
public String getMessage() {
return message;
}
}