文件下载，带转码->pdf->swf

private String upload = “保存的路径”;

//文件下载

public String download() {


//初始化


this.initContext();


String apath = request.getSession().getServletContext().getRealPath(upload);





File af = new File(apath);


// 假设没有这个目录。就创建个目录


if (!af.exists()) {


af.mkdirs();


}

String filenewaddress = request.getSession().getServletContext().getRealPath(upload);

    


System.out.println(“開始下载，请稍后……”);


URL urlfile = null;


HttpURLConnection httpUrl = null;


BufferedInputStream bis = null;


BufferedOutputStream bos = null;


try {





// 把下载地址赋给urlfile 


urlfile = new URL(fileoldaddress);


// 打开下载 URL 引用的资源的通信链接(假设尚未建立这种连接)


httpUrl = (HttpURLConnection) urlfile.openConnection();


// 建立与指定socket的连接


httpUrl.connect();


// 提供一个默认的文件名称


String context = httpUrl.getHeaderField(“Content-Disposition”);


// 推断context是否为空


if (context == null) {


// 取地址最后的/后面的字符当做名字


filename1 = fileoldaddress.substring(fileoldaddress


.lastIndexOf(“/”) + 1, fileoldaddress.length());


filenewaddress = filenewaddress + “\\” + filename1;


} else {


filename1 = context.substring(context.lastIndexOf(“=”) + 1,


context.length());


filenewaddress = filenewaddress + “\\” + filename1;


}


// 把本地保存地址赋给f


File f = new File(filenewaddress);


bis = new BufferedInputStream(httpUrl.getInputStream());


bos = new BufferedOutputStream(new FileOutputStream(f));


int len = 2048;


byte[] b = new byte[len];


while ((len = bis.read(b)) != -1) {


bos.write(b, 0, len);


}


bos.flush();


bis.close();


httpUrl.disconnect();


System.out.println(“下载完毕。”);


} catch (Exception e) {


System.out.println(“无效下载地址,错误信息：” + e.getMessage());


this.msg = “下载失败!”;


this.success = false;


} finally {


try {


if (bis != null)


bis.close();


if (bos != null)


bos.close();


} catch (IOException e) {


System.out.println(“系统错误,错误信息：” + e.getMessage());


System.out.println(“请联系管理员！”);


}


}

// 下载到本地结束

// 取绝对路径+名


String filepath = apath + “\\” + filename1;

System.out.println(filepath);


// 转格式


DocConverter d = new DocConverter(filepath);


d.conver();


// 转格式结束


return “success”;

}

转码须要用到两个软件！

    Apache_OpenOffice_incubating_3.4.1_Win_x86_install_zh-CN

                                                  swftools

必须先启动这两个软件，才干转码