Action
public class UserAction extends ActionSupport implements SessionAware {
/**
*
*/
private static final long serialVersionUID = 1L;
private String name;
private Map<String, Object> session;
public String add() {
if (name == "" || !name.equals("tom")) {
this.addFieldError("name", "this name is wrong!");
this.addFieldError(name, "this name too long!");
System.out.println("name:" + name);
return ERROR;
}
System.out.println("name" + name);
session.put("name", name);
return "success";
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
@Override
public void setSession(Map<String, Object> session) {
// TODO Auto-generated method stub
this.session = session;
}
}
web.xml
<filter>
<filter-name>struts2</filter-name>
<filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
struts.xml
<struts>
<!-- 改变xml不用重启服务，开发模式 -->
<constant name="struts.configuration.xml.reload" value="true"/>
<!-- DMI动态方法调用需要配置 -->
<constant name="struts.enable.DynamicMethodInvocation" value="true"/>
<package name="user" namespace="/" extends="struts-default">
<!-- 默认Action -->
<default-action-ref name="index"></default-action-ref>
<action name="index">
<result>
/index.jsp
</result>
</action>
<action name="user" class="com.buaa.struts2.userAction.UserAction" >
<result >/Hello.jsp</result>
<result name="error">/index.jsp</result>
</action>
</package>
</struts>
测试的登录页面
<%@ page language="java" contentType="text/html; charset=UTF-8"
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" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<base href="<%=basePath %>" />
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<%-- <s:fielderror fieldName="name" theme="simple"/>
<br> --%>
<s:debug></s:debug>
<form action="user!add" method="post">
<input type="text" name="name"/><s:property value="errors.name[0]"/>
<input type="submit" value="提交submit"/>
</form>
</body>
</html>
获取到session的值
<body>
hello struts success!<br />
<s:property value="#session.name"/>
</body>
时间： 2024-11-10 00:08:41