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Struts1.2文件下载(解决中文乱码)

2009-08-27 11:44 525 查看

JSP页面写的比较简单就是一个提交按纽，只为演示

download.jsp

<%...@ page language="java" pageEncoding="utf-8"%>

<%...@ taglib uri="http://struts.apache.org/tags-bean" divfix="bean" %>

<%...@ taglib uri="http://struts.apache.org/tags-html" divfix="html" %>

<%...@ taglib uri="http://struts.apache.org/tags-logic" divfix="logic" %>

<%...@ taglib uri="http://struts.apache.org/tags-tiles" divfix="tiles" %>

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

<html:html lang="true">

<head>

<html:base />

</head>

<body>

<html:form action="download.do" method="post">

<html:submit value="下载文件"></html:submit>

</html:form>

</body>

</html:html>

Action

/**//*

* Generated by MyEclipse Struts

* Template path: templates/java/JavaClass.vtl

package com.struts.action;

import java.io.FileInputStream;

import java.io.FileNotFoundException;

import java.io.IOException;

import java.io.InputStream;

import java.io.OutputStream;

import java.io.UnsupportedEncodingException;

import java.net.URLEncoder;

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;

import com.struts.form.DownloadForm;

/** *//**

* MyEclipse Struts

* Creation date: 03-29-2008

* XDoclet definition:

* @struts.action path="/download" name="downloadForm" input="/form/download.jsp" scope="request" validate="true"

public class DownloadAction extends Action ...{

/**//*

* Generated Methods

/** *//**

* Method execute

* @param mapping

* @param form

* @param request

* @param response

* @return ActionForward

* @throws UnsupportedEncodingException

public ActionForward execute(ActionMapping mapping, ActionForm form,

HttpServletRequest request, HttpServletResponse response) throws UnsupportedEncodingException ...{

DownloadForm d = (DownloadForm) form;

InputStream is=null;

OutputStream os=null;

String path = "JAVA问题.doc";

/**//*解决中文乱码问题，设置后产生一个新的String对象此对象以改变了编码*/

String newpath=URLEncoder.encode(path,"utf-8");

byte[] b=new byte[1024];

int i=0;

try ...{

is = new FileInputStream("d:/"+path);

os = response.getOutputStream();

/**//*在页面上弹出一个下在窗口*/

response.setContentType("application/x-msdownload");

/**//*设置报头信息，弹出窗口中显示的文件名 newpath*/

response.setHeader("Content-Disposition", "Disposition; filename="+newpath);

/**//*具体的输入输出流操作*/

while((i=is.read(b))!=-1)...{

os.write(b, 0, i);

i=0;

}

os.flush();

} catch (IOException e) ...{

// TODO Auto-generated catch block

e.printStackTrace();

}finally...{

try ...{

os.close();

is.close();

} catch (IOException e) ...{

// TODO Auto-generated catch block

e.printStackTrace();

}

return null;

}

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