用通配符配置 action的name,class,result
此次主要介绍用通配符来配置struts的action的class，name，result之间的链接。下面是实例：
1，struts.xml文件中配置：
注意：abcAction,*Action.* ,如果有个请求是abcAction那么struts接受该请求的顺序是:
abcAction>*Action>*
一般不让用户直接请求视图资源，一般的做法是有这样的配置：
<action name="*">
<result>/{1}.jsp</result>
</action>
解释：名字为*表示优先级最低的接受所有请求，因为没有class属性，那么就会让ActionSupport来处理，而这个action的execute方法总是返回success字符串，而上面的result又没有那么属性默认的就是success那么就直接跳转至{1}.jsp中去了。
2，加法Action
3，减法Action
4，用户操作页面。
4，加法跳转页面
5，减法跳转页面
1，struts.xml文件中配置：
[color=red] <action name="*_*" class="com.dd.action.{1}" method="{2}">
<result name="success">/{1}Result.jsp</result>
</action>、[/color]
注意：abcAction,*Action.* ,如果有个请求是abcAction那么struts接受该请求的顺序是:
abcAction>*Action>*
一般不让用户直接请求视图资源，一般的做法是有这样的配置：
<action name="*">
<result>/{1}.jsp</result>
</action>
解释：名字为*表示优先级最低的接受所有请求，因为没有class属性，那么就会让ActionSupport来处理，而这个action的execute方法总是返回success字符串，而上面的result又没有那么属性默认的就是success那么就直接跳转至{1}.jsp中去了。
2，加法Action
引用package com.dd.action; public class AddAction { private int number1; private int number2; private int sum; public int getNumber1() { return number1; } public void setNumber1(int number1) { this.number1 = number1; } public int getNumber2() { return number2; } public void setNumber2(int number2) { this.number2 = number2; } public int getSum() { return sum; } public void setSum(int sum) { this.sum = sum; } public String add(){ setSum(getNumber1()+getNumber2()); return "success"; } }
3，减法Action
package com.dd.action;
import com.opensymphony.xwork2.ActionSupport;
public class ReduceAction extends ActionSupport {
private int number1;
private int number2;
private int sum;
public int getNumber1() {
return number1;
}
public void setNumber1(int number1) {
this.number1 = number1;
}
public int getNumber2() {
return number2;
}
public void setNumber2(int number2) {
this.number2 = number2;
}
public int getSum() {
return sum;
}
public void setSum(int sum) {
this.sum = sum;
}
public String reduce(){
setSum(getNumber1()-getNumber2());
return "success";
}
}
4，用户操作页面。
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@ taglib prefix="s" uri="/struts-tags"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
<title>My JSP 'add.jsp' starting page</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
<script type="text/javascript">
function changeAction(){
document.forms[0].action = "ReduceAction_reduce";
document.forms[0].submit();
}
</script>
</head>
<body>
<s:form action="AddAction_add">
<s:textfield name="number1"></s:textfield>
<s:textfield name="number2"></s:textfield>
<input type="button" value="减法" onclick="changeAction();"/>
<s:submit vlue="提交"></s:submit>
</s:form>
</body>
</html>
4，加法跳转页面
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@ taglib prefix="s" uri="/struts-tags" %>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
</head>
<body>
加法的结果页面<br>
<s:property value="sum"/>
</body>
</html>
5，减法跳转页面
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@ taglib prefix="s" uri="/struts-tags"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<body>
减法的结果页面<br>
<s:property value="sum"/>
</body>
</html>