function postSimpleData() {        $.ajax({            type: "POST",            url: "/Service/SimpleData",            contentType: "application/json", //必须有            dataType: "json", //表示返回值类型，不必须            data: JSON.stringify({ 'foo': 'foovalue', 'bar': 'barvalue' }),  //相当于 //data: "{'str1':'foovalue', 'str2':'barvalue'}",            success: function (jsonResult) {                alert(jsonResult);            }        });    }

表单序列化：
    $.ajax({
        url:options.url,
        type:"POST",
        data:$("#Form1").serialize(),
        success: function(data) {
            if(options.success!=undefined)
            {
                options.success.call(this,data);
            }
        },
        error:function(){
            if(options.error!=undefined)
            {
                options.error.call(this,data);
            }
        }
    });