Struts2 文件上传
1 设计文件上传表单
注意：表单必须把enctype改为"multipart/form-data"
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%@ taglib uri="/struts-tags" prefix="s"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>一点教程-struts2的文件上传</title>
</head>
<body>
<h3>文件上传</h3>
<form action="demo1.action" method="post" enctype="multipart/form-data">
用户名：<input type="text" name="name"/><br/>
密码：<input type="password" name="password"/><br/>
请选择头像：<input type="file" name="icon"/><br/>
<input type="submit" value="修改"/>
</form>
</body>
</html>
2 编写Action接收文件
注意：表单的name必须和Action的属性名保持一致
package com.yiidian.action;
import java.io.File;
import com.opensymphony.xwork2.ActionSupport;
/**
* 接收文件和参数
* @author 一点教程(yiidian.com)
*/
public class Demo1Action extends ActionSupport{
//接收表单普通参数
private String name;
private String password;
public void setName(String name) {
this.name = name;
}
public void setPassword(String password) {
this.password = password;
}
//接收文件信息
private File icon; //内容
private String iconFileName;//名称
private String iconContentType;//类型
public void setIcon(File icon) {
this.icon = icon;
}
public void setIconFileName(String iconFileName) {
this.iconFileName = iconFileName;
}
public void setIconContentType(String iconContentType) {
this.iconContentType = iconContentType;
}
@Override
public String execute() throws Exception {
System.out.println("name="+name);
System.out.println("password="+password);
System.out.println("文件内容--"+icon);
System.out.println("文件名称--"+iconFileName);
System.out.println("文件类型--"+iconContentType);
return SUCCESS;
}
}
3 struts.xml配置Action
注意：这里可以修改文件上传大小的常量
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.5//EN"
"http://struts.apache.org/dtds/struts-2.5.dtd">
<struts>
<!-- 修改文件上传大小常量，默认为2M -->
<constant name="struts.multipart.maxSize" value="20971520"></constant>
<package name="base" extends="struts-default" namespace="/">
<action name="demo1" class="com.yiidian.action.Demo1Action">
<result>/succ.jsp</result>
</action>
</package>
</struts>
4 运行测试
控制台输出
热门文章
优秀文章
