Question

前后如何遍历后台传过来的json

{"Table":[{"Id":1,"BuMenName":"管理层","BuMenHit":1},{"Id":2,"BuMenName":"预订部","BuMenHit":2},{"Id":3,"BuMenName":"销售部","BuMenHit":3},{"Id":4,"BuMenName":"财务部","BuMenHit":4},{"Id":8,"BuMenName":"test3","BuMenHit":1000},{"Id":10,"BuMenName":"test23","BuMenHit":123},{"Id":11,"BuMenName":"teststest修改","BuMenHit":23}]}

Answer 1

这个是JSON字符串和数组的混合形式啊，你就正常的取值就好了啊，比如：

var data = {"Table":[{"Id":1,"BuMenName":"管理层","BuMenHit":1},{"Id":2,"BuMenName":"预订部","BuMenHit":2},{"Id":3,"BuMenName":"销售部","BuMenHit":3},{"Id":4,"BuMenName":"财务部","BuMenHit":4},{"Id":8,"BuMenName":"test3","BuMenHit":1000},{"Id":10,"BuMenName":"test23","BuMenHit":123},{"Id":11,"BuMenName":"teststest修改","BuMenHit":23}]};
//如果想要取得Table中的值，因为Table值是数组，那就在用取数组的方法取，如下
var arr = data.Table;
$.each(arr,function(i,json){
    alert(json.Id);   //依次弹出ID为1，2,3,4等
});

类似上面的方法可以去到任意你想要的值，希望对你有所帮助！

追问

我用data.Table 显示的undefined

追答

哦，你单独把我的那段拿出来看下！我估计是你后台传过来的时候是字符串而不是JSON对象，需要用JS的eval()方法进行转化下如：eval(data);

Answer 2

//UserController.cs
public ActionResult Create()
{
var stream = controllerContext.HttpContext.Request.InputStream;
string json = new StreamReader(stream).ReadToEnd(); //json 字符串在此
}
最好用一些json工具来反序列化成强类型比如JSON.NET，当前上面的写法只讲了原理，其实很搓的。正确的做法是用Binder生成一个强类型的参数：
public ActionResult Create([UserBinder]User user)
{
//已经得到一个强类型的user了
}
然后把上面那些丑陋的代码，扔到binder里去。