修改JSON格式的值
本文关键字:格式 JSON 修改 | 更新日期: 2023-09-27 18:17:09
我有以下JSON:
{
"Sonos": [
{
"192.168.10.214": [
{
"Volume": "5",
"Extension": null,
"Name": "Wohnzimmer"
}
]
},
{
"192.168.10.204": [
{
"Volume": "5",
"Extension": null,
"Name": "Büro"
}
]
}
]
}
点击我想改变音量,我试着用这个代码片段来做:
string[] address = ip.Text.Split(new string[] {" | "},
StringSplitOptions.RemoveEmptyEntries); //ip is a ListViewItem
...
dynamic jsonObj = JsonConvert.DeserializeObject(config);
jsonObj["Sonos"][address[0]]["Volume"] = "10";
现在最后一行抛出
访问的JArray值中key值无效:"192.168.10.214"。
如何更新指定IP的Volume ?我是using Newtonsoft.Json;
任何提示感谢!
编辑
根据请求提供完整功能:
private void IncomingCall()
{
int i = 0;
foreach (ListViewItem ip in sonosListExt1.Items)
{
string[] address = ip.Text.Split(new string[] {" | "}, StringSplitOptions.RemoveEmptyEntries);
/* Get current Volume and save */
string getVol = sendXML("/MediaRenderer/RenderingControl/Control", "GetVolume",
"urn:schemas-upnp-org:service:RenderingControl:1",
"<InstanceID>0</InstanceID><Channel>Master</Channel>", address[0]);
XmlDocument xmlResponse = new XmlDocument();
xmlResponse.LoadXml(getVol);
var curVol = ((XmlElement) xmlResponse.FirstChild.FirstChild.FirstChild).InnerText;
string config = File.ReadAllText(AppDomain.CurrentDomain.BaseDirectory + "cfg''config.json");
dynamic jsonObj = JsonConvert.DeserializeObject(config);
jsonObj["Sonos"][i][address[0]][i]["Volume"] = curVol;
string output = JsonConvert.SerializeObject(jsonObj, Newtonsoft.Json.Formatting.Indented);
File.WriteAllText(AppDomain.CurrentDomain.BaseDirectory + "cfg''config.json", output);
/* Lower Volume */
sendXML("/MediaRenderer/RenderingControl/Control", "SetVolume",
"urn:schemas-upnp-org:service:RenderingControl:1",
"<InstanceID>0</InstanceID><Channel>Master</Channel><DesiredVolume>2</DesiredVolume>", address[0]);
/* Var up */
i++;
}
}
"Sonos"
是一个数组,子项及其值也是一个数组。
所以访问如下:
jsonObj["Sonos"][0][address[0]][0]["Volume"] = "10";
编辑:对于foreach
迭代,考虑类似于这样的东西(有点粗糙,但如果结构得到保证,那么这应该可以工作耸肩):
foreach (ListViewItem ip in sonosListExt1.Items)
{
var index = sonosListExt1.Items.ToList().IndexOf(ip);
string[] address = ip.Text.Split(new string[] {" | "}, StringSplitOptions.RemoveEmptyEntries);
/* --- Excluded XML manipulation code --- */
jsonObj["Sonos"][index][address[0]][0]["Volume"] = "10";
}
理想情况下,您应该将Sonos
更改为以地址值为键的JSON字典。