STRUTS2之SELECT

最新推荐文章于 2021-02-28 16:50:53 发布

原创最新推荐文章于 2021-02-28 16:50:53 发布 · 5.7k 阅读

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#struts #action #class #import #html #exception

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本文介绍了一个简单的Struts2示例项目，包括JSP页面、Action类及配置文件等内容。通过这个例子，读者可以了解如何使用Struts2框架实现基本的表单选择功能。

最近突然开始学STRUTS2了，出试牛刀。感觉不错。先将我的第一个例子发表下；

第一个程序是select.jsp

<%@ page contentType="text/html; charset=UTF-8" %>

<%@ taglib prefix="s" uri="/struts-tags" %>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">

<html>

<head>

<title>Others</title>

<s:head/>

</head>

<body>

<h3>Others</h3>

<s:form action="SelectAtion" >

<s:submit value="确定"/>

</s:form>

</body>

</html>

CITY类

package org.fakir08.struts2;

public class City

{

private String name;

private String no;

public String getName()

{

return name;

}

public void setName(String name)

{

this.name = name;

}

public String getNo()

{

return no;

}

public void setNo(String no)

{

this.no = no;

}

Action类

package org.fakir08.struts2;

import java.util.ArrayList;

import java.util.List;

import com.opensymphony.xwork2.ActionSupport;

public class SelectAction extends ActionSupport

{

private String selectCity;

private List listCity;

public List getListCity()

{

return listCity;

}

public void setListCity(List listCity)

{

this.listCity = listCity;

}

public String getSelectCity()

{

return selectCity;

}

public void setSelectCity(String selectCity)

{

this.selectCity = selectCity;

}

@Override

public String execute() throws Exception

{

// TODO Auto-generated method stub

System.out.println(":XX");

listCity=new ArrayList();

City a = new City();

a.setName("深圳");

a.setNo("0755");

listCity .add(a);

a = null;

City a1 = new City();

a1.setName("北京");

a1.setNo("010");

listCity .add(a1);

a1=null;

City a2 = new City();

a2.setName("广州");

a2.setNo("020");

listCity .add(a2);

a2=null;

return super.execute();

}

select2.jsp

<%@ page contentType="text/html; charset=UTF-8" %>

<%@ taglib prefix="s" uri="/struts-tags" %>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">

<html>

<head>

<title>Others</title>

<s:head/>

</head>

<body>

<h3>Others</h3>

<s:form action="Store" >

<s:select

label="选择城市"

list="listCity"

name="selectCity"

listKey="no"

listValue="name"

emptyOption="true"

headerKey="None"

headerValue="None"/>

</s:form>

</body>

</html>

XML

<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE struts PUBLIC

"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"

"http://struts.apache.org/dtds/struts-2.0.dtd">

<result>HelloChina.jsp</result>

</action>

<result>example.jsp</result>

<result name="input">example.jsp</result>

</action>

<result>select2.jsp</result>

<result name="input">select.jsp</result>

</action>

</package>

</struts>