jQuery 数据表中不允许小于 (<) 符号

Question

要求不高，我想用JSON数据显示数据表，在这里我有一个小挑战，如果 JSON 数据有特殊字符，如 lessthan symbol(<)，数据不会显示在数据网格中。不知道为什么只有 lessthan symbol(<) 才会出现问题我尝试使用以下代码，如果遗漏任何内容，请纠正我， Eg:last 名字是 Jhons<asdf 但它只显示 Jhons 请帮我解决这个问题。

这是我的示例代码

$.ajax({
    url: '/echo/json/',
    type: "post",
    dataType: "json",
    data: {
        json: JSON.stringify([
            {
            id: 1,
            firstName: "Peter&heins",
            lastName: "Jhons<asdf"},
        {
            id: 2,
            firstName: "David>tyy",
            lastName: "Bowie<wwww"},
            {
            id: 2,
            firstName: "David<test",
            lastName: "testqwwe>qewrqwe"}
        ]),
        delay: 3
    },
    success: function(data, textStatus, jqXHR) {
        // since we are using jQuery, you don't need to parse response
        drawTable(data);
    }
});

function drawTable(data) {
    for (var i = 0; i < data.length; i++) {
        drawRow(data[i]);
    }
}

function drawRow(rowData) {
    var row = $("<tr />")
    $("#personDataTable").append(row); //this will append tr element to table... keep its reference for a while since we will add cels into it
    row.append($("<td>" + rowData.id + "</td>"));
    row.append($("<td>" + rowData.firstName + "</td>"));
    row.append($("<td>" + rowData.lastName + "</td>"));
}

JSFiddle

谢谢

Answer 1

因为<在HTML中是一个特殊字符，你需要转义它。

row.append($("<td>").text(rowData.firstName));

Answer 2

Demo

您可以使用

row.append($("<td>" + rowData.lastName.replace("<","&lt") + "</td>"));

而不是

row.append($("<td>" + rowData.lastName + "</td>"));

If you use the less than (<) or greater than (>) signs in your text, the browser might mix them with tags. Character entities are used to display reserved characters in HTML.

Manual

jQuery 数据表中不允许小于 (<) 符号

Lessthan(<) symbol is not allowed in jQuery Datatable

datatable

jquery

json