struts2中一个表单中提交多个请求的例子(多个提交按钮)

前端技术 2023/09/06 JSP

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

复制代码 代码如下:

<%@ 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

复制代码 代码如下:

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

复制代码 代码如下:

<?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

复制代码 代码如下:

<%@ 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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