JAVAWEB压缩多个文件并下载

Java ZIP文件打包与下载

最新推荐文章于 2024-07-10 10:25:26 发布

转载最新推荐文章于 2024-07-10 10:25:26 发布 · 70 阅读

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原文链接：http://www.cnblogs.com/yzjSince92/p/6282869.html

本文介绍了一种使用Java进行ZIP文件打包的方法，并演示了如何将包含多个文件（如图片）的ZIP文件通过HTTP响应返回给客户端进行下载。具体步骤包括创建文件输入流、ZIP输出流、设置HTTP响应头等。

        //文件名称
        String[] names={"one.jpg","two.jpg","three.jpg","four.jpg"};
        //四个文件流
        FileInputStream input1 = new FileInputStream(new File("文件路径"));
        FileInputStream input2 = new FileInputStream(new File("文件路径"));
        FileInputStream input3 = new FileInputStream(new File("文件路径"));
        FileInputStream input4 = new FileInputStream(new File("文件路径"));
        FileInputStream[] inputs={input1,input2,input3,input4};
        //ZIP打包图片
        File zipFile = new File("压缩文件存放路径");
        byte[] buf = new byte[1024];
        int len;
        ZipOutputStream zout=new ZipOutputStream(new FileOutputStream(zipFile));
        for (int i = 0; i < inputs.length; i++) {  
            FileInputStream in =inputs[i];  
            zout.putNextEntry(new ZipEntry(names[i]));    
            while ((len = in.read(buf)) > 0) {  
                zout.write(buf, 0, len);  
            }  
            zout.closeEntry();  
            in.close();  
        }
        zout.close();
        
        
        //下载图片
        FileInputStream zipInput =new FileInputStream(zipFile);
        OutputStream out = response.getOutputStream();
        response.setContentType("application/octet-stream");
        response.setHeader("Content-Disposition", "attachment; filename=images.zip");
        while ((len=zipInput.read(buf))!= -1){  
            out.write(buf,0,len);  
        }
        zipInput.close();
        out.flush();
        out.close();
        //删除压缩包
        zipFile.delete();

转载于:https://www.cnblogs.com/yzjSince92/p/6282869.html