試試這個:
$.ajax("/MyFile.xxx", {
dataType: "text",
beforeSend: function(xhr) {
xhr.overrideMimeType("text/plain; charset=x-user-defined");
},
success: function(data) {
var len = data.length,
str = "";
for(var i = 0; i < len; ++i) {
var byte = data.charCodeAt(i) & 0xFF;
str += byte + " ";
}
document.body.innerHTML = str;
}
});
演示:http://jsfiddle.net/SXgfu/(顯示UTF-8字節åöä
)
注意,IE9不支持這個。它不支持獲取響應的原始字節的任何其他方式。
如果您使用的是PHP,你可以使用這個變通的IE:
$.get("/base64encoder.php?file=MyFile.xxx", function(data) {
data = decode64(data);
var len = data.length,
str = "";
for (var i = 0; i < len; ++i) {
var byte = data.charCodeAt(i) & 0xFF;
str += byte + " ";
}
document.body.innerHTML = str;
}, "text");
凡是一樣的東西:
<?php
echo base64_encode(file_get_contents($_GET['file']));
記得消毒以上,否則就巨大的安全漏洞
and decode64
(src http://ntt.cc/2008/01/19/base64-encoder-decoder-with-javascript.html):
var keyStr = "ABCDEFGHIJKLMNOP" +
"QRSTUVWXYZabcdef" +
"ghijklmnopqrstuv" +
"wxyz/" +
"=";
function decode64(input) {
var output = "";
var chr1, chr2, chr3 = "";
var enc1, enc2, enc3, enc4 = "";
var i = 0;
// remove all characters that are not A-Z, a-z, 0-9, +, /, or =
var base64test = /[^A-Za-z0-9\+\/\=]/g;
if (base64test.exec(input)) {
alert("There were invalid base64 characters in the input text.\n" + "Valid base64 characters are A-Z, a-z, 0-9, '+', '/',and '='\n" + "Expect errors in decoding.");
}
input = input.replace(/[^A-Za-z0-9\+\/\=]/g, "");
do {
enc1 = keyStr.indexOf(input.charAt(i++));
enc2 = keyStr.indexOf(input.charAt(i++));
enc3 = keyStr.indexOf(input.charAt(i++));
enc4 = keyStr.indexOf(input.charAt(i++));
chr1 = (enc1 << 2) | (enc2 >> 4);
chr2 = ((enc2 & 15) << 4) | (enc3 >> 2);
chr3 = ((enc3 & 3) << 6) | enc4;
output = output + String.fromCharCode(chr1);
if (enc3 != 64) {
output = output + String.fromCharCode(chr2);
}
if (enc4 != 64) {
output = output + String.fromCharCode(chr3);
}
chr1 = chr2 = chr3 = "";
enc1 = enc2 = enc3 = enc4 = "";
} while (i < input.length);
return output;
}
請顯示內容。 – mplungjan 2012-08-13 10:41:26