使用flaterStream对字符串压缩及解压缩

在前后台进行交互时，当页面的PV量较大，为了减少带宽流量的消耗，有必要对前后台传输的字符串进行压缩，如果1天有1亿的PV,那么一天就能产生4TB的带宽流量了，从节省带宽成本来说，压缩还是很有必要的。

使用 DeflaterOutputStream 压缩字符串

结果

@Test
    // 使用 DeflaterOutputStream 压缩字符串
    public void test3() throws IOException {
        String s ="aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaadewfwefwerfwefweffffffffffffffffffffffweqweeeeeeeeeeeee";
        ByteArrayOutputStream bos;
        bos = new ByteArrayOutputStream();
        Base64.Encoder encoder = Base64.getEncoder();
        DeflaterOutputStream dos = new DeflaterOutputStream(bos);
        dos.write(s.getBytes());
        dos.close();
        System.out.println("压缩前长度:" + s.getBytes().length);
        String s1 = encoder.encodeToString(bos.toByteArray());
        System.out.println("压缩后长度：" + s1.length());
        System.out.println("压缩后的字符串：" + s1);
    }

使用InflaterInputStream 解压缩

结果

@Test
    //使用 InflaterInputStream 解压
    public void test4() throws IOException {
        String s ="eJxLTCQBpKSWp5WnAlERhErDCspTC8tTkQEAqzEncQ==";
        ByteArrayOutputStream out = new ByteArrayOutputStream();
        byte[] decode = Base64.getDecoder().decode(s);
        ByteArrayInputStream bis = new ByteArrayInputStream(decode);
        InflaterInputStream inflater = new InflaterInputStream(bis);
        byte[] b = new byte[1024];
        int count;
        while ((count = inflater.read(b)) >=0){
            out.write(b, 0, count);
        }
        inflater.close();
        System.out.println(out.toByteArray().length);
        System.out.println(new String(out.toByteArray()));
        out.flush();
        out.close();
    }