我不明白為什么這么難,每個人都有自己的實現…

因此,在服務器中,我生成了一個.zip文件,希望用戶單擊該文件即可下載.

因此,我設置了服務器成功接收到的請求,現在,我正在努力將字節數組寫入輸出.

這是我的響應代碼：

protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

// TODO Auto-generated method stub

System.out.println("Downloading clusters.zip");

/* Generate the directory on the server, then zip it. */

clustersToFiles();

zipClusters();

/* Now the zip is saved on zipFullPath */

System.out.println("Done generating the .zip");

String parent_dir = System.getProperty("catalina.base");

String filename = "clusters.zip";

String zipFullPath = parent_dir + "/" + filename;

response.setContentType("application/zip");

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

OutputStream out = response.getOutputStream();

FileInputStream fis = new FileInputStream(zipFullPath);

int bytes;

while ((bytes = fis.read()) != -1) {

System.out.println(bytes);

out.write(bytes);

}

fis.close();

response.flushBuffer();

System.out.println(".zip file downloaded at client successfully");

}

總結

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