Question

我正在使用XMLHttpRequest来读取名为“filename％3Fformat = json”的文件。我收到一个错误，说区域.js：1382 GET http://localhost:3000/file%3Fformat=json 404（未找到）。

如果我将请求更改为“filename3Fformat = json”并将文件名更改为相同（基本上从文件名和请求中删除％，它可以正常工作......但我需要能够包含％在文件名中。

我在绝望中添加了setRequestHeader，但这似乎没有任何区别。

var requestAllStations = new XMLHttpRequest();

requestAllStations.onload = function ( ) {
    if (requestAllStations.readyState == requestAllStations.DONE && requestAllStations.status == 200) {
        // get json file content
        var allFITStations = JSON.parse(requestAllStations.responseText);

        console.log(allFITStations);
    }
};

requestAllStations.open("get", "./file%3Fformat=json", true );
requestAllStations.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
requestAllStations.send();

Answer 1

使用Javascript的escape（）函数对特殊字符进行编码。

[??? home]$ pip install matlab_kernel
Requirement already satisfied: matlab_kernel in ./ec2-user/anaconda2/lib/python2.7/site-packages
Requirement already satisfied: ipython>=4.0.0 in ./ec2-user/anaconda2/lib/python2.7/site-packages (from matlab_kernel)
Requirement already satisfied: metakernel>=0.18.0 in ./ec2-user/anaconda2/lib/python2.7/site-packages (from matlab_kernel)
Requirement already satisfied: jupyter-client>=4.4.0 in ./ec2-user/anaconda2/lib/python2.7/site-packages (from matlab_kernel)
Requirement already satisfied: backports.tempfile in ./ec2-user/anaconda2/lib/python2.7/site-packages (from matlab_kernel)
Requirement already satisfied: pexpect>=4.2 in ./ec2-user/anaconda2/lib/python2.7/site-packages (from metakernel>=0.18.0->matlab_kernel)
Requirement already satisfied: ipykernel in ./ec2-user/anaconda2/lib/python2.7/site-packages (from metakernel>=0.18.0->matlab_kernel)
Requirement already satisfied: backports.weakref in ./ec2-user/anaconda2/lib/python2.7/site-packages (from backports.tempfile->matlab_kernel)

字符串转义字符串将如下所示：

requestAllStations.open("get", escape("./file%3Fformat=json"), true );

Answer 2

所以，我最终在请求的文件名中添加了.replace（/％/ g，＆＃34;％25＆＃34;）。我猜测发生的事情是我的服务器试图将％3F解码为？在文件名中，我进一步编码文件名以包含＆＃34;％＆＃34; （％25）。

filename = file?format=json    
encodeURIComponent(filename).replace(/%3D/g, "=").replace(/%/g, "%25"))

使用XMLHttpRequest读取文件名包含％的文件

2 个答案: