struts2-byblank案例练习（二）封装表单数据
前言：本文对案例练习一拓展，进行数据封装，并实现表单校验。
数据封装
1 修改struts.xml配置，将action添加class属性
<package name="default" namespace="/" extends="struts-default">
<action name="HelloWorld" class="action.HelloWorldAction">
<result>HelloWorld.jsp</result>
</action>
</package>2 创建HelloWorld.java文件
package action;
import com.opensymphony.xwork2.ActionSupport;
public class HelloWorldAction extends ActionSupport{
private String message;
public String getMessage() {
return message;
}
public void setMessage(String message) {
this.message = message;
}
@Override
public String execute() throws Exception {
setMessage("hello,world! 我来自HelloWorldAction.java");
return SUCCESS;
}
}3，修改HelloWorld.jsp，引入struts2标签库。
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ 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>HelloWord</title>
</head>
<body>
<h1><s:property value="message"/></h1>
</body>
</html>运行结果
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