js解压ZIP数据
js解压ZIP数据
第一步:
在html中使用script标签引入pako.min.js文件
<script src="https://cdnjs.cloudflare.com/ajax/libs/pako/2.0.4/pako.min.js"></script>
第二步:
function Utf8ArrayToStr(array) {
var out, i, len, c;
var char2, char3;
out = "";
len = array.length;
i = 0;
while (i < len) {
c = array[i++];
switch (c >> 4) {
case 0: case 1: case 2: case 3: case 4: case 5: case 6: case 7:
out += String.fromCharCode(c);
break;
case 12: case 13:
char2 = array[i++];
out += String.fromCharCode(((c & 0x1F) << 6) | (char2 & 0x3F));
break;
case 14:
char2 = array[i++];
char3 = array[i++];
out += String.fromCharCode(((c & 0x0F) << 12) |
((char2 & 0x3F) << 6) |
((char3 & 0x3F) << 0));
break;
}
}
return JSON.parse(out);
}
第三步:
解压zip数据
// 解压zip数据
function unzip(b64Data) {
var strData = atob(b64Data);
var charData = strData.split('').map(function (x) { return x.charCodeAt(0) });
var binData = new Uint8Array(charData);
var data = pako.inflate(binData);
return Utf8ArrayToStr(data);
}
举例:
const data = "";
const datalist = unzip(data);
console.log(datalist)
原文地址:https://blog.csdn.net/weixin_66557048/article/details/142872016
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