Struts ActionForm 文件上传

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文件上传

采用struts上传文件

* 页面的配置，如：

标题：<input type="text" name="title"><br>

文件：<input type="file" name="myfile"><br>

</form>

* ActionForm中使用FormFile来接收上传的文件

* 在Action中调用FormFile取得上传文件数据，采用流输出，即完成上传

* 在struts-config.xml中采用<controller/>标签配置上传参数，在<action-mappings>标签后边，如：<controller maxFileSize="10M"/>

创建

Index.jsp

<%@ page language="java" pageEncoding="GB18030"%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">

<html>

<head>

<title>UploadFile</title>

</head>

<body>

<hr>

Title：<input type="text" name="title"><br>

文件:<input type="file" name="myfile"><br>

</form>

</body>

</html>

Upload_success.jsp

<%@ page language="java" contentType="text/html; charset=GB18030"

pageEncoding="GB18030"%>

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">

<html>

<head>

</head>

<body>

上传成功！<br>

Title：${uploadfile.title }<br>

文件名:${uploadfile.myfile.fileName }<br>

文件大小:${uploadfile.myfile.fileSize }

</body>

</html>

UploadFileActionForm.jsp

package com.libo.struts;

import org.apache.struts.action.ActionForm;

import org.apache.struts.upload.FormFile;

public class UploadFileActionForm extends ActionForm {

private String title;

private FormFile myfile;

public String getTitle() {

return title;

}

public void setTitle(String title) {

this.title = title;

}

public FormFile getMyfile() {

return myfile;

}

public void setMyfile(FormFile myfile) {

this.myfile = myfile;

}

UploadAction.jsp

package com.libo.struts;

import java.io.FileOutputStream;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import org.apache.struts.action.Action;

import org.apache.struts.action.ActionForm;

import org.apache.struts.action.ActionForward;

import org.apache.struts.action.ActionMapping;

public class UploadAction extends Action {

@Override

public ActionForward execute(ActionMapping mapping, ActionForm form,

HttpServletRequest request, HttpServletResponse response)

throws Exception {

UploadFileActionForm ufa = (UploadFileActionForm)form;

System.out.println(ufa.getTitle());

System.out.println(ufa.getMyfile().getFileName());

FileOutputStream fos = new FileOutputStream("c://"+ufa.getMyfile().getFileName());

fos.write(ufa.getMyfile().getFileData());

fos.flush();

fos.close();

return mapping.findForward("success");

}

Struts-config.xml

<?xml version="1.0" encoding="ISO-8859-1" ?>

<!DOCTYPE struts-config PUBLIC

"-//Apache Software Foundation//DTD Struts Configuration 1.2//EN"

"http://jakarta.apache.org/struts/dtds/struts-config_1_2.dtd">

<struts-config>

<form-beans>

<form-bean name="uploadfile" type="com.libo.struts.UploadFileActionForm" />

</form-beans>

<action-mappings>

<action path="/uploadfile"

type="com.libo.struts.UploadAction"

name="uploadfile"

scope="request"

</action>

</action-mappings>

</struts-config>