struts2中一个form多个提交的方法

在很多Web应用中,为了完成不同的工作,一个HTML form标签中可能有两个或多个submit按钮
Struts2中提供了另外一种方法,使得无需要配置可以在同一个action类中执行不同的方法(默认执行的是execute方法)。使用这种方式也需要通过请求参来来指定要执行的动作。请求参数名的格式为
  action!method.action
  注:由于Struts2只需要参数名,因此,参数值是什么都可以。
  下面我就给出一个实例程序来演示如何处理有多个submit的form:
主页面more_submit.jsp


<%@ page language="java" import="java.util.*" pageEncoding="GBK"%>
<%@ taglib prefix="s" uri="/struts-tags"%>
<html>
<head>	
<title>My JSP 'hello.jsp' starting page</title>
</head>
<body>
	<s:form action="submit.action">
		<s:textfield name="msg" label="输入内容" />
		<s:submit name="save" value="保存" align="left" method="save" />
		<s:submit name="print" value="打印" align="left" method="print" />
	</s:form>
</body>
</html>

MoreSubmitAction.java

package action;

import javax.servlet.http.*;
import com.opensymphony.xwork2.ActionSupport;
import org.apache.struts2.interceptor.*;

public class MoreSubmitAction extends ActionSupport implements
		ServletRequestAware {
	private String msg;
	private javax.servlet.http.HttpServletRequest request;

	// 获得HttpServletRequest对象
	public void setServletRequest(HttpServletRequest request) {
		this.request = request;
	}

	// 处理save submit按钮的动作
	public String save() throws Exception {
		request.setAttribute("result", "成功保存[" + msg + "]");
		return "save";
	}

	// 处理print submit按钮的动作
	public String print() throws Exception {
		request.setAttribute("result", "成功打印[" + msg + "]");
		return "print";
	}

	public String getMsg() {
		return msg;
	}

	public void setMsg(String msg) {
		this.msg = msg;
	}
}

structs.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.1//EN" "http://struts.apache.org/dtds/struts-2.1.dtd">
<struts>

	<package name="demo" extends="struts-default">
		<action name="submit" class="action.MoreSubmitAction">
			<result name="save">
				/result.jsp
			</result>
			<result name="print">
				/result.jsp
			</result>
		</action>
	</package>


</struts>    

result.jsp

<%@ page language="java" contentType="text/html; charset=GBK"
    pageEncoding="GBK"%>
<!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>提交结果</title>
</head>
<body>
<h1>${result }</h1>
</body>
</html>

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