在 Coldfusion 中循环嵌套结构
[英]Looping a nesty struture in Coldfusion
问题描述
这是我的 JSON 数据：我正在尝试循环并使用键名和键数据获取有关它的每个节点的所有信息
{
"src": 1,
"feeds": [{
"id": 1,
"name": "All",
"polarPlot": true
}],
"srcFeed": 1,
"showSil": true,
"showFlg": true,
"showPic": true,
"flgH": 20,
"flgW": 85,
"acList": [{
"Id": 12589424,
"Rcvr": 1,
"HasSig": false,
"Icao": "C01970",
"Bad": false,
"Reg": "C-FJQL",
"FSeen": "\/Date(1672216397120)\/",
"TSecs": 334,
"CMsgs": 330,
"Alt": 34975,
"GAlt": 35206,
"InHg": 30.15059,
"AltT": 0,
"Call": "ROU1958",
"Lat": 45.59019,
"Long": -74.90746,
"PosTime": 1672216731130,
"Mlat": false,
"Tisb": false,
"Spd": 469.0,
"Trak": 59.3,
"TrkH": false,
"Type": "A321",
"Mdl": "Airbus A321 211SL",
"Man": "Airbus",
"CNum": "7117",
"From": "YYZ Lester B. Pearson, Toronto, Canada",
"To": "YQB Quebec Jean Lesage, Canada",
"Op": "Air Canada Rouge",
"OpIcao": "ROU",
"Sqk": "2222",
"Help": false,
"Vsi": 0,
"VsiT": 0,
"WTC": 2,
"Species": 1,
"Engines": "2",
"EngType": 3,
"EngMount": 0,
"Mil": false,
"Cou": "Canada",
"HasPic": false,
"Interested": false,
"FlightsCount": 2,
"Gnd": false,
"SpdTyp": 0,
"CallSus": false,
"Trt": 2,
"Year": "2016"
}, {
"Id": 12595324,
"Rcvr": 1,
"HasSig": false,
"Icao": "C0307C",
"Bad": false,
"Reg": "C-FSJJ",
"FSeen": "\/Date(1672215986531)\/",
"TSecs": 745,
"CMsgs": 284,
"Alt": 35000,
"GAlt": 35189,
"InHg": 30.1092529,
"AltT": 0,
"Call": "ACA394",
"Lat": 47.86931,
"Long": -72.90211,
"PosTime": 1672216731064,
"Mlat": false,
"Tisb": false,
"Spd": 513.0,
"Trak": 117.2,
"TrkH": false,
"Type": "B38M",
"Mdl": "Boeing 737MAX 8",
"Man": "Boeing",
"CNum": "61217",
"From": "YYC Calgary, Canada",
"To": "YHZ Halifax / Stanfield, Canada",
"Op": "Air Canada",
"OpIcao": "ACA",
"Sqk": "1144",
"Help": false,
"Vsi": 0,
"VsiT": 0,
"WTC": 2,
"Species": 1,
"Engines": "2",
"EngType": 3,
"EngMount": 0,
"Mil": false,
"Cou": "Canada",
"HasPic": false,
"Interested": false,
"FlightsCount": 2,
"Gnd": false,
"SpdTyp": 0,
"CallSus": false,
"Trt": 2,
"Year": "2018"
}, {
"Id": 12601386,
"Rcvr": 1,
"HasSig": false,
"Icao": "C0482A",
"Bad": false,
"Reg": "C-GBIN",
"FSeen": "\/Date(1672215747131)\/",
"TSecs": 984,
"CMsgs": 5124,
"Alt": 32925,
"GAlt": 33185,
"InHg": 30.1801186,
"AltT": 0,
"Call": "ROU1689",
"Lat": 45.119546,
"Long": -71.834575,
"PosTime": 1672216731191,
"Mlat": false,
"Tisb": false,
"Spd": 462.5,
"Trak": 31.1,
"TrkH": false,
"Type": "A319",
"Mdl": "Airbus A319 114",
"Man": "Airbus",
"CNum": "845",
"From": "FLL Fort Lauderdale Hollywood, United States",
"To": "YQB Quebec Jean Lesage, Canada",
"Op": "Air Canada Rouge",
"OpIcao": "ROU",
"Sqk": "1447",
"Help": false,
"Vsi": -2112,
"VsiT": 0,
"WTC": 2,
"Species": 1,
"Engines": "2",
"EngType": 3,
"EngMount": 0,
"Mil": false,
"Cou": "Canada",
"HasPic": false,
"Interested": false,
"FlightsCount": 1,
"Gnd": false,
"SpdTyp": 0,
"CallSus": false,
"Trt": 2,
"Year": "1998"
}, {
"Id": 10812570,
"Rcvr": 1,
"HasSig": false,
"Icao": "A4FC9A",
"Bad": false,
"Reg": "N420LA",
"FSeen": "\/Date(1672215081608)\/",
"TSecs": 1650,
"CMsgs": 4226,
"Alt": 34000,
"GAlt": 34281,
"InHg": 30.2007866,
"AltT": 0,
"Call": "LAE2512",
"Lat": 46.00371,
"Long": -71.20912,
"PosTime": 1672216731894,
"Mlat": false,
"Tisb": false,
"Spd": 399.0,
"Trak": 210.7,
"TrkH": false,
"Type": "B763",
"Mdl": "Boeing 767 316F/W",
"Man": "Boeing",
"CNum": "34627",
"Op": "MAS Air Cargo",
"OpIcao": "MAA",
"Sqk": "0706",
"Help": false,
"Vsi": 0,
"VsiT": 0,
"WTC": 3,
"Species": 1,
"Engines": "2",
"EngType": 3,
"EngMount": 0,
"Mil": false,
"Cou": "United States",
"HasPic": false,
"Interested": false,
"FlightsCount": 1,
"Gnd": false,
"SpdTyp": 0,
"CallSus": false,
"Trt": 2,
"Year": "2006"
}, {
"Id": 12706028,
"Rcvr": 1,
"HasSig": false,
"Icao": "C1E0EC",
"Bad": false,
"FSeen": "\/Date(1672196473179)\/",
"TSecs": 20258,
"CMsgs": 1605,
"Alt": 125300,
"GAlt": 125300,
"AltT": 0,
"Call": "TEST1234",
"Tisb": false,
"TrkH": false,
"Sqk": "",
"VsiT": 0,
"WTC": 0,
"Species": 0,
"EngType": 0,
"EngMount": 0,
"Mil": false,
"Cou": "Canada",
"HasPic": false,
"Interested": false,
"FlightsCount": 4,
"Gnd": false,
"SpdTyp": 0,
"CallSus": false,
"Trt": 1
}],
"totalAc": 5,
"lastDv": "638077811342841157",
"shtTrlSec": 30,
"stm": 1672216731909
}
我正在尝试循环并为嵌套结构中的每个循环获取数据根据平面信息，数据经常在嵌套循环内或多或少地更改 fopr 我已经尝试了一切，因为我对 coldfusion 的了解很少需要一些帮助，非常感谢对所有人
2 个解决方案
解决方案1
0 2022-12-29 00:55:11
将其保存为变量，然后反序列化。
<cfset JSONObject = DeserializeJSON(YourVariable)>
然后，您可以从中调用特定的键值，例如#JSONObject.flgH# 。
如果你有多个循环，你可以用数组表示法 output 它，比如#JSONObject.acList.Reg[1]# - 如果你动态循环它，你会用像[i]这样的变量替换数字。
解决方案2
0 2022-12-29 04:14:11
你可以从：
<cfset local.stData = deserializeJSON(whatever that variable is holding the JSON) />
<!--- Now, local.stData.acList is what is called "an array of structs" --->
<cfloop array="#local.stData.acList#" index="local.n" item="local.stPlane">
<!--- In here, you can work with local.stPlane.id, for example --->
<!--- If you need to loop over the "keys" of the struct, like "Id", "Rcvr", you can do that, too. I prefer structKeyList --->
<cfloop list="#structKeyList(local.stPlane)#" index="local.sKey">
<cfif local.sKey = 'Id'>
<cfelseif local.sKey = 'Rcvr'>
</cfif>
<!--- Or... --->
<cfswitch expression="#local.sKey#">
<cfcase value="Id">
</cfcase>
<cfcase value="Rcvr">
</cfcase>
<cfdefaultcase>
<!--- For unexpected keys, or just skip this block --->
</cfdefaultcase>
</cfswitch>
</cfloop>
</cfloop>
解决方案3
0 2022-12-29 05:04:56
很好，但我仍然需要密钥的值文件内容是我发布的 JSON 我不知道#structKeyList(local.stPlane)# 是否是密钥的值非常感谢您的帮助越来越近
<cfloop list="#structKeyList(local.stPlane)#" index="local.sKey">
<!--- Or... --->
<cfswitch expression="#local.sKey#">
<cfcase value="Id">
#local.sKey# : #structKeyList(local.stPlane)# <br>
</cfcase>
<cfcase value="Rcvr">
#local.sKey# <br>
</cfcase>
<cfdefaultcase>
<!--- For unexpected keys, or just skip this block --->
</cfdefaultcase>
</cfswitch>
</cfloop>
循环API Json响应时的ColdFusion GC开销限制
[英]ColdFusion GC Overhead Limit while looping over API Json Response
声明:本站的技术帖子网页，遵循CC BY-SA 4.0协议，如果您需要转载，请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.