struts2的重定向
首先，开始登录：
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <%@ page isELIgnored="false"%> <%@ taglib prefix="s" uri="/struts-tags"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>登陆</title> </head> <body> <s:form method="post" action="login.action"> <p> <s:textfield type="text" name="loginInfo.uesrname" label="用户名" /> <br> <s:textfield type="text" name="loginInfo.password" label="密码" /> <br> <br> <s:submit value="提交" /> </p> </s:form> </body> </html>
发送的actin为login.action，由struts.xml确定
<?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">
<struts>
<constant name="struts.devMode" value="true" />
<package name="lyyStruts1" extends="struts-default">
<action name="login" class="controller.Login">
<result name="list" type="redirectAction">
<param name="actionName">
List
</param>
</result>
</action>
<!-- 小写不行 -->
<action name="List" class="controller.List">
<result name="bookListJsp">
/bookList.jsp
</result>
</action>
</package>
</struts>
action name就是提交的action去掉action后缀。实现类是controller.Login。然后重定向到list action中。再通过list.action显示。
Login.java
public class Login {
public String execute() throws Exception {
return "list";
}
}
List.java
public class List {
private ArrayList bookList = new ArrayList();
public ArrayList getBookList() {
return bookList;
}
public void setBookList(ArrayList bookList) {
this.bookList = bookList;
}
public String execute() {
bookList.add("book1");
bookList.add("book2");
bookList.add("book3");
bookList.add("book4");
return "bookListJsp";
}
}
最后，显示结果的页面：
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ page isELIgnored="false"%>
<%@ taglib prefix="s" uri="/struts-tags"%>
<!--
-->
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<s:iterator var="bookName" value="bookList">
<s:property value="bookName" />
</s:iterator>
<!--不支持jstl标签库
<c:forEach var="bookName" items="${bookList}">
<c:out value="${bookName}"></c:out>
</c:forEach>
-->
</body>
</html>