初学Struts2零配置例子

叁歲伎倆 2022-09-21 11:40 168阅读 0赞

## 步骤： ##

### 1、创建Web Project，将struts2-convention-plugin-2.xx.jar导入WEB-INF/lib   2、创建Action对象 ###

#### LoginAction.java(所属包名必须为action,否则会报错找不到映射): ####

package com.action;
 
 import org.apache.struts2.convention.annotation.Action;
 import org.apache.struts2.convention.annotation.Result;
 import org.apache.struts2.convention.annotation.Results;
 
 import com.opensymphony.xwork2.ActionSupport;
 
 @Results({ @Result(name = "success", location = "success.jsp"), @Result(name = "input", location = "index.jsp") })
 
 public class LoginAction extends ActionSupport {
 	private static final long serialVersionUID = 1L;
 	private String username;
 	private String password;
 
 	@Action("login")	//相当于@Action(value="login"),即该Action名为login.action
 
 	public String execute() {
 		return SUCCESS;
 	}
 
 	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;
 	}
 }

#### 相应的页面:   index.jsp: ####

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
 <%@ taglib uri="/struts-tags" prefix="s" %>
 <html>
 <head>
 <title>零配置登录页</title>
 </head>
 <body>
 		<s:form action="login.action" method="post">
 		<s:textfield label="用户名" name="username"></s:textfield>
 		<s:password label="密码" name = "password"></s:password>
 		<s:submit></s:submit>
 		</s:form>
 </body>
 </html>

success.jsp:

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
 <%@ taglib uri="/struts-tags" prefix="s" %>
 <html>
 <head>
 <title>零配置成功登陆页</title>
 </head>
 <body>
 <s:property value="username"/>,welcome. 
 Login Success!
 </body>
 </html>

### struts2.xml如下: ###

<?xml version="1.0" encoding="UTF-8" ?>
 <!DOCTYPE struts PUBLIC
 	"-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"
 	"http://struts.apache.org/dtds/struts-2.3.dtd">
 <struts>
 	<constant name="struts.convention.result.path" value="/"></constant>
 </struts>

![Center][] ![Center 1][]

[Center]: https://img-blog.csdn.net/20160617165044607?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center
[Center 1]: /images/20220721/fe6b8bedb8ff4533b6e8f0bd768a6fb0.png