JSON 和字符串的转换

Question

如果把一个对象 转换成 字符串的形式?用于ajax的提交数据.{id:"x",name:"xx"}转换成"{id:\"x\",name:\"xx\"}"

Answer 1

$.ajax({
                type: "post",
                url: "Handler.ashx",
                data: { m: 'a' },
                success: function(arr) {
                    var length = eval(arr).length;
                    var select1Str = [];
                    for (var i = 0; i < length; ++i) {
                        select1Str.push("<option value='", eval(arr)[i].name, "'>", eval(arr)[i].name, "</option>");
                    }
                    select1Str = select1Str.join("");
                    $("#select1").append(select1Str);                    //绑定事件change事件
                    $("#select1").change(function() {
                        alert($("#select1 option[selected]").val());
                    });
                }
            });public void ProcessRequest (HttpContext context) 
    {
        char method = Convert.ToChar(context.Request.Params["m"]);
        context.Response.ContentType = "text/plain";        string arraryA = "[{name:\"柳州\"},{name:\"南宁\"},{name:\"桂林\"}]";
        string arraryB = "[{name:\"广西\"},{name:\"上海\"},{name:\"北京\"}]";
        string arraryC = "[{name:\"中国\"},{name:\"美国\"},{name:\"英国\"}]";
        string arraryD = "[{name:\"地球\"},{name:\"月球\"},{name:\"太阳\"}]";
        
        switch (method)
        {
            case 'a':
                context.Response.Write(arraryA);
                break;
            case 'b':
                context.Response.Write(arraryB);
                break;
            case 'c':
                context.Response.Write(arraryC);
                break;
            case 'd':
                context.Response.Write(arraryD);
                break;
        }
    }

Answer 2

http://www.javaeye.com/topic/121319也可遍历json对象，然后生成json字符串