在javascript中解压缩gzip和zlib字符串 [英] Decompress gzip and zlib string in javascript

问题描述

我想从tmx文件中获取压缩层数据。谁知道在javascript中解压缩gzip和zlib字符串的库？我尝试 zlib 但它对我不起作用。例如，tmx文件中的图层数据是：

I want to get compress layer data from tmx file . Who knows libraries for decompress gzip and zlib string in javascript ? I try zlib but it doesn't work for me . Ex , layer data in tmx file is :

  <data encoding="base64" compression="zlib">
       eJztwTEBAAAAwqD1T20JT6AAAHgaCWAAAQ==
  </data>

我的javascript代码是

My javascript code is

var base64Data = "eJztwTEBAAAAwqD1T20JT6AAAHgaCWAAAQ==";
var compressData = atob(base64Data);
var inflate = new Zlib.Inflate(compressData);
var output = inflate.decompress();

它运行时显示消息错误不支持的压缩方法。但我尝试使用在线工具解压缩为 http://i-tools.org/gzip ，它会返回正确的字符串。

It runs with displays message error "unsupported compression method" . But I try decompress with online tool as http://i-tools.org/gzip , it returns correct string.

推荐答案

我可以通过 zlib <解决我的问题/ a>。我将代码修改如下

I can solve my problem by zlib . I fix my code as below

var base64Data = "eJztwTEBAAAAwqD1T20JT6AAAHgaCWAAAQ==";
var compressData = atob(base64Data);
var compressData = compressData.split('').map(function(e) {
    return e.charCodeAt(0);
});
var inflate = new Zlib.Inflate(compressData);
var output = inflate.decompress();

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