javascript JSON @attributes
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时间：2020-10-26 12:44:39 来源:igfitidea点击:
JSON @attributes
提问by enloz
I have a hard time to understand how to read JSON object containing "@attributes".
我很难理解如何读取包含“@attributes”的 JSON 对象。
Javascript:
Javascript:
$.ajax({
type: "GET",
dataType: 'json',
url: "http://..../script/weather.php?r="+req,
success: function(data){
alert(data.weather.forecast_information.city[0].data)
}
});
JSONresponse:
JSON响应：
{
"@attributes": {
"version": "1"
},
"weather": {
"@attributes": {
"module_id": "0",
"tab_id": "0",
"mobile_row": "0",
"mobile_zipped": "1",
"row": "0",
"section": "0"
},
"forecast_information": {
"city": {
"@attributes": {
"data": "Kreuzlingen, Thurgovia"
}
},
"postal_code": {
"@attributes": {
"data": "kreuzlingen"
}
},
"latitude_e6": {
"@attributes": {
"data": ""
}
},
"longitude_e6": {
"@attributes": {
"data": ""
}
},
"forecast_date": {
"@attributes": {
"data": "2012-07-03"
}
},
"current_date_time": {
"@attributes": {
"data": "1970-01-01 00:00:00 +0000"
}
},
"unit_system": {
"@attributes": {
"data": "US"
}
}
},
"current_conditions": {
"condition": {
"@attributes": {
"data": "Cloudy"
}
},
"temp_f": {
"@attributes": {
"data": "70"
}
},
"temp_c": {
"@attributes": {
"data": "21"
}
},
"humidity": {
"@attributes": {
"data": "Humidity: 68%"
}
},
"icon": {
"@attributes": {
"data": "/ig/images/weather/cloudy.gif"
}
},
"wind_condition": {
"@attributes": {
"data": "Wind: N at 0 mph"
}
}
},
"forecast_conditions": [
{
"day_of_week": {
"@attributes": {
"data": "Tue"
}
},
"low": {
"@attributes": {
"data": "55"
}
},
"high": {
"@attributes": {
"data": "72"
}
},
"icon": {
"@attributes": {
"data": "/ig/images/weather/thunderstorm.gif"
}
},
"condition": {
"@attributes": {
"data": "Thunderstorm"
}
}
},
{
"day_of_week": {
"@attributes": {
"data": "Wed"
}
},
"low": {
"@attributes": {
"data": "66"
}
},
"high": {
"@attributes": {
"data": "79"
}
},
"icon": {
"@attributes": {
"data": "/ig/images/weather/chance_of_storm.gif"
}
},
"condition": {
"@attributes": {
"data": "Chance of Storm"
}
}
},
{
"day_of_week": {
"@attributes": {
"data": "Thu"
}
},
"low": {
"@attributes": {
"data": "61"
}
},
"high": {
"@attributes": {
"data": "77"
}
},
"icon": {
"@attributes": {
"data": "/ig/images/weather/chance_of_storm.gif"
}
},
"condition": {
"@attributes": {
"data": "Chance of Storm"
}
}
},
{
"day_of_week": {
"@attributes": {
"data": "Fri"
}
},
"low": {
"@attributes": {
"data": "63"
}
},
"high": {
"@attributes": {
"data": "79"
}
},
"icon": {
"@attributes": {
"data": "/ig/images/weather/chance_of_rain.gif"
}
},
"condition": {
"@attributes": {
"data": "Chance of Rain"
}
}
}
]
}
}
ERROR (Chrome);
错误（铬）；
Uncaught TypeError: Cannot read property 'data' of undefined
未捕获的类型错误：无法读取未定义的属性“数据”
Question is, how to get "Kreuzlingen, Thurgovia" in alert ?
问题是，如何让“克罗伊茨林根，图尔戈维亚”处于警戒状态？
回答by Engineer
Get like this:
得到这样的：
alert(data.weather.forecast_information.city["@attributes"].data)
