评论

收藏

[JSP] struts2中一个表单中提交多个请求的例子(多个提交按钮)

开发技术 开发技术 发布于:2021-10-23 17:08 | 阅读数:540 | 评论:0

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" "https://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" "https://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>

关注下面的标签,发现更多相似文章