Question

C# json解析（多层）怎么遍历

{"resultcode":"200","reason":"成功的返回","result":
{"BJ":
{"province":"北京","province_code":"BJ","citys":
[{"city_name":"北京","city_code":"BJ","abbr":"京","engine":"1","engineno":"0","classa":"0","class":"0","classno":"0","regist":"0","registno":"0"}]},
"SH":{"province":"上海","province_code":"SH","citys":[{"city_name":"上海","city_code":"SH","abbr":"沪","engine":"1","engineno":"0","classa":"0","class":"0","classno":"0","regist":"0","registno":"0"}]},
"ZJ":{"province":"浙江","province_code":"ZJ","citys":[{"city_name":"杭州","city_code":"ZJ_HZ","abbr":"浙","engine":"0","engineno":"0","classa":"1","class":"1","classno":"6","regist":"0","registno":"0"},{"city_name":"宁波","city_code":"ZJ_NB","abbr":"浙","engine":"0","engineno":"0","classa":"1","class":"1","classno":"6","regist":"0","registno":"0"},{"city_name":"义乌","city_code":"ZJ_YW","abbr":"浙","engine":"0","engineno":"0","classa":"1","class":"1","classno":"3","regist":"0","registno":"0"}]),"error_code":0}
使用JsonSerializer或者JavaScriptSerializer取每个节点的值
使用对象获取

Answer 1

想用JavaScriptSerializer，前提条件就是你的json数据要有对应的Domain类。

如果没有，你只能转换为Dictionary，然后在转换。

追问

我查到JavaScriptSerializer好像有限制的，是否有例子可以参考或者代码

追答

我不明白你现在遇到的问题。你是对JavaScriptSerializer这个类没用过，还是什么？

这个类的使用非常简单。
http://www.cnblogs.com/color-wolf/p/3640261.html

追问

我是不知道怎么循环输出重复的节点

追答

你现在已经完成反序列化的过程了？如果完成的话，你现在手上应该是一个集合，直接Distinct就可以了

追问

我已经得到json字符串，然后想用对象进行处理，然后卡在了result节点后那一大块不知道如何循环取值了

追答

你好，抱歉最近工作有点事，追答得有些晚。我今天分析了一下你的json字符串。我发现一个问题，就是你这个json字符串不是通过代码序列化而来，肯定是手工拼接的。为什么？因为第一少节点，第二我发现里面居然有“)”符号，肯定是错误的。

下面是我的代码，我已经通过Dictionary反序列了resulet后面的json字符串。下面你想要什么值，都可以通过这个Dictionary来获取

string abc = @"{
""BJ"":
{
""province"":""北京"",""province_code"":""BJ"",""citys"":
[
{""city_name"":""北京"",""city_code"":""BJ"",""abbr"":""京"",""engine"":""1"",""engineno"":""0"",""classa"":""0"",""class"":""0"",""classno"":""0"",""regist"":""0"",""registno"":""0""}
]
}
}";

JavaScriptSerializer jss = new JavaScriptSerializer();
Dictionary<string,object> dic = jss.Deserialize<Dictionary<string, object>>(abc);

//你可以自己断点这个dic，你就能看到所有的节点都在里面了。你想要哪个就通过key来获取就可以了。由于字数限制，我去掉了后面的两个，你自己应该补充上。