struts2之PreResultListener

最新推荐文章于 2017-10-30 09:43:19 发布

fenglei12

最新推荐文章于 2017-10-30 09:43:19 发布

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分类专栏： Struts2 文章标签： struts2 PreResultListener

本文链接：https://blog.youkuaiyun.com/fenglei12/article/details/84167455

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struts2可由action，拦截器添加PreResultListener监听器，这个监听器可以在转入实际物理视图前回调该监听器的beforeResult()方法。
action代码：

package com.randy.com;

import java.util.Date;

import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionInvocation;
import com.opensymphony.xwork2.ActionSupport;
import com.opensymphony.xwork2.interceptor.PreResultListener;

public class LoginAction extends ActionSupport {

	private static final long serialVersionUID = -2503680075934354752L;

	private String username;
	private String password;

	public String execute() {
		ActionInvocation invitation = ActionContext.getContext().getActionInvocation();
		invitation.addPreResultListener(new PreResultListener() {

			@Override
			public void beforeResult(ActionInvocation invitation, String resultCode) {
				System.out.println(resultCode);
				invitation.getInvocationContext().put("extra", new Date() + resultCode+"转入");
			}
		});
		if ("randy".equals(getUsername()) && "jin".equals(getPassword())) {
			ActionContext.getContext().getSession().put("user", username);
			return SUCCESS;
		}
		return LOGIN;
	}

	public String getUsername() {
		return username;
	}

	public void setUsername(String username) {
		this.username = username;
	}

	public String getPassword() {
		return password;
	}

	public void setPassword(String password) {
		this.password = password;
	}

}

jsp代码：

<%@ page language="java" contentType="text/html" pageEncoding="UTF-8"%>
<%@ taglib uri="/struts-tags" prefix="s" %>
<!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=ISO-8859-1">
<title><s:text name="succPage"/></title>
</head>
<body>
	<s:text name="succTip">
		<s:param>${sessionScope.user}</s:param>
	</s:text>
	<s:property value="username"/>
	<s:property value="extra"/>
	<a href="aa.action">ffff</a>
</body>
</html>