问JSON使用JavaScript读取本地文件(类似问题堆栈溢出没有帮助)

EN

var xmlhttp = new XMLHttpRequest();
//xmlhttp.overrideMimeType("application/json"); //this line also didnt help
var url = "sample.json";
xmlhttp.open("GET", url, true);
xmlhttp.onreadystatechange = function() {

    if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
        testme(xmlhttp.responseText);
    }
};
xmlhttp.send(); 

function testme(response){

    var record = JSON.parse(response);
    var out = "<table>";

    for(var i = 0; i < record.length; i++) { //prints all the data to html
        out += "<tr><td>" +
        record[i].Name +
        "</td><td>" +
        record[i].City +
        "</td><td>" +
        record[i].Country +
        "</td></tr>";
    }
    out += "</table>";
    document.getElementById("dis").innerHTML = out;
}