【发布时间】:2018-07-03 13:48:20
【问题描述】:
我在第一个 reactjs 工作中遇到 json 错误。这对我和我是候选人的工作非常重要。我怎样才能解决这个问题?非常感谢。
相关类:
constructor() {
super();
this.state = {
data:[],
}
}
componentDidMount(){
fetch('../JsonFiles/routes.json').
then(response => response.json()).
then(findresponse => this.setState ({ data: findresponse.data }));
}
render() {
return (
<div>
fasfasfa
{
this.state.data.map((dynamicData, key) =>
<div>
<span> {dynamicData.routes.origin.cityName} </span>
<span> {dynamicData.routes.destinations[{}].cityName} </span>
</div>
)
}
</div>
);
}
}
json 文件:
{"routes": [
{
"origin": {
"name": "Aalborg Airport",
"country": "DK",
"cityName": "Aalborg",
"cityCode": "AAL"
},
"destinations": [
{
"name": "Bornholm Rønne",
"country": "DK",
"cityName": "Bornholm",
"cityCode": "RNN"
}
]
},
{
"origin": {
"name": "Barca",
"country": "ES",
"cityName": "Barcelona",
"cityCode": "BCN"
},
"destinations": [
{
"name": "Borispol",
"country": "UA",
"cityName": "Kyiv",
"cityCode": "KBP"
}
]
},
{
"origin": {
"name": "Billund",
"country": "DK",
"cityName": "Billund",
"cityCode": "BLL"
},
"destinations": [
{
"name": "Bornholm Rønne",
"country": "DK",
"cityName": "Bornholm",
"cityCode": "RNN"
},
{
"name": "København Kastrup",
"country": "DK",
"cityName": "Copenhagen",
"cityCode": "CPH"
},
{
"name": "Stavanger Sola",
"country": "NO",
"cityName": "Stavanger",
"cityCode": "SVG"
}
]
},
{
"origin": {
"name": "Bornholm Rønne",
"country": "DK",
"cityName": "Bornholm",
"cityCode": "RNN"
},
"destinations": [
{
"name": "Aalborg Airport",
"country": "DK",
"cityName": "Aalborg",
"cityCode": "AAL"
},
{
"name": "Billund",
"country": "DK",
"cityName": "Billund",
"cityCode": "BLL"
},
{
"name": "København Kastrup",
"country": "DK",
"cityName": "Copenhagen",
"cityCode": "CPH"
},
{
"name": "Midtjyllands Lufthavn (Karup)",
"country": "DK",
"cityName": "Midtjyllands Lufthavn (Karup)",
"cityCode": "KRP"
},
{
"name": "Stavanger Sola",
"country": "NO",
"cityName": "Stavanger",
"cityCode": "SVG"
}
]
},
{
"origin": {
"name": "Charles de Gaulle",
"country": "FR",
"cityName": "Charles de Gaulle",
"cityCode": "CDG"
},
"destinations": [
{
"name": "Billund",
"country": "DK",
"cityName": "Billund",
"cityCode": "BLL"
}
]
},
{
"origin": {
"name": "København Kastrup",
"country": "DK",
"cityName": "Copenhagen",
"cityCode": "CPH"
},
"destinations": [
{
"name": "Billund",
"country": "DK",
"cityName": "Billund",
"cityCode": "BLL"
},
{
"name": "Bornholm Rønne",
"country": "DK",
"cityName": "Bornholm",
"cityCode": "RNN"
},
{
"name": "Midtjyllands Lufthavn (Karup)",
"country": "DK",
"cityName": "Midtjyllands Lufthavn (Karup)",
"cityCode": "KRP"
}
]
},
{
"origin": {
"name": "Esbjerg",
"country": "DK",
"cityName": "Esbjerg",
"cityCode": "EBJ"
},
"destinations": [
{
"name": "Stavanger Sola",
"country": "NO",
"cityName": "Stavanger",
"cityCode": "SVG"
}
]
},
{
"origin": {
"name": "Borispol",
"country": "UA",
"cityName": "Kyiv",
"cityCode": "KBP"
},
"destinations": [
{
"name": "Barca",
"country": "ES",
"cityName": "Barcelona",
"cityCode": "BCN"
}
]
},
{
"origin": {
"name": "Midtjyllands Lufthavn (Karup)",
"country": "DK",
"cityName": "Midtjyllands Lufthavn (Karup)",
"cityCode": "KRP"
},
"destinations": [
{
"name": "Bornholm Rønne",
"country": "DK",
"cityName": "Bornholm",
"cityCode": "RNN"
},
{
"name": "København Kastrup",
"country": "DK",
"cityName": "Copenhagen",
"cityCode": "CPH"
}
]
},
{
"origin": {
"name": "Oslo Gardermoen",
"country": "NO",
"cityName": "Oslo",
"cityCode": "OSL"
},
"destinations": [
{
"name": "Stord lufthavn, Sørstokken",
"country": "NO",
"cityName": "Stord",
"cityCode": "SRP"
},
{
"name": "Ørland",
"country": "NO",
"cityName": "Ørland",
"cityCode": "OLA"
}
]
},
{
"origin": {
"name": "Rhodos",
"country": "GR",
"cityName": "Rhodos",
"cityCode": "RHO"
},
"destinations": [
{
"name": "Billund",
"country": "DK",
"cityName": "Billund",
"cityCode": "BLL"
}
]
},
{
"origin": {
"name": "Stavanger Sola",
"country": "NO",
"cityName": "Stavanger",
"cityCode": "SVG"
},
"destinations": [
{
"name": "Billund",
"country": "DK",
"cityName": "Billund",
"cityCode": "BLL"
},
{
"name": "Bornholm Rønne",
"country": "DK",
"cityName": "Bornholm",
"cityCode": "RNN"
},
{
"name": "Esbjerg",
"country": "DK",
"cityName": "Esbjerg",
"cityCode": "EBJ"
}
]
},
{
"origin": {
"name": "Stord lufthavn, Sørstokken",
"country": "NO",
"cityName": "Stord",
"cityCode": "SRP"
},
"destinations": [
{
"name": "Oslo Gardermoen",
"country": "NO",
"cityName": "Oslo",
"cityCode": "OSL"
}
]
},
{
"origin": {
"name": "Ørland",
"country": "NO",
"cityName": "Ørland",
"cityCode": "OLA"
},
"destinations": [
{
"name": "Oslo Gardermoen",
"country": "NO",
"cityName": "Oslo",
"cityCode": "OSL"
}
]
}
]}
我得到了这个错误:
1 未处理的拒绝 (SyntaxError):意外的令牌 11 |组件DidMount(){
12 |获取('../JsonFiles/routes.json')。 13 |然后(响应 => response.json())。 14 |然后(findresponse => this.setState ({ data: findresponse.data })); 15 |
16 |
【问题讨论】:
-
可以试试绝对路径吗?像这样:
/home/test/user/JsonFiles/routes.json请在描述中指定你的json文件路径。
标签: json reactjs react-router react-redux data-mapping