沫沫金::struts下载文档[解决方案]

   沫沫金在解决生成文档的最后，需要实现客户端下载功能。就好好写了一个完善的方法，贡献给大家。

特点：

-中文支持

-全文当支持*.rar,*.zip,*.txt,*.doc

-拷贝后直接使用

提示：

URLEncoder使用Jar包

import java.net.URLEncoder

//这么调用sunvinsDown(root+"/",strFileName,response);就好
public static void sunvinsDown(String filePath,String fileName,HttpServletResponse response)
throws Exception {
File file = new File(filePath+fileName);
if(!file.exists()){
System.out.println("文件不存在");
}else{
FileInputStream fis = new FileInputStream(file);
BufferedInputStream bis = new BufferedInputStream(fis);

OutputStream os=response.getOutputStream();
BufferedOutputStream bos=new BufferedOutputStream(os);

fileName=URLEncoder.encode(fileName,"UTF-8");
fileName=new String(fileName.getBytes("UTF-8"),"GBK");

response.reset();
response.setContentType("UTF-8");
response.setContentType("Application/x-msdownload");
response.setHeader("Content-Disposition", "p_w_upload;filename="+fileName);
response.setHeader("Content-Length", String.valueOf(bis.available()));

int bytesRead=0;
byte[] buffer=new byte[1024];
while((bytesRead=bis.read(buffer))!=-1){
bos.write(buffer,0,bytesRead);
}
bos.flush();
bos.close();
bis.close();

os.close();
fis.close();
}
}