如何像对象一样操纵Json响应? [英] how to manipulate Json response like an object?

问题描述

我的jQuery.ajax返回JSon对象.我首先阅读其他文章.但他们的回应文字不喜欢我的. 我的回复内容:来自萤火虫回复

my jQuery.ajax return JSon object. I firstly read other articles. but their response text not likes mine. My Response content: from firebug response

{"item":"[{\"country\":\"USA\",\"lan\":\"EN\"},{\"country\":\"Turkiye\",\"lan\":\"TR\"}]"}

现在我要提醒countryName:

Now i trying to alert countryName:

$('#loadData').click(function() {
            $.ajax({
                type: "POST",
                url: "WS/myWS.asmx/getDaa",
                data: "{}",
                contentType: "application/json; charset=utf-8",
                dataType: "json",
                success: function(msg) {
                $("#jsonResponse").html(msg);
                    $.each(msg.item, function(i, d) {
                        alert(this.country);
                        debugger;
                    });
                },
            });
        });

但它正在警告未定义"

推荐答案

item的值是一个字符串.因此，您首先需要将其解析为json.试试这个.

The value of item is a string. Thus you first need to parse it as json. Try this.

$("#jsonResponse").html(msg);
    var item = jQuery.parseJSON(msg.item)
    $.each(item, function(i, d) {
        alert(this.country);
        debugger;
    });
},

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