Javascript React App JS-如何引用静态JSON文件
在JS中，我指的是远程服务器上的文件，如：Javascript React App JS-如何引用静态JSON文件,javascript,reactjs,Javascript,Reactjs,在JS中，我指的是远程服务器上的文件，如： class App extends Component { constructor(props) { super(props); let client = this.getParameterByName('client', window.url); this.state = { sidebarClass: 'open', client: client ? client : 'abc-client'
class App extends Component {
constructor(props) {
super(props);
let client = this.getParameterByName('client', window.url);
this.state = {
sidebarClass: 'open',
client: client ? client : 'abc-client',
specUrl: client
? `http://<remote-host>/${client}.json`
: '<remote-host>/abc-client.json',
};
this.showAPI = this.showAPI.bind(this);
this.toggleSidebar = this.toggleSidebar.bind(this);
}
getParameterByName(name, url) {
if (!url) url = window.location.href;
name = name.replace(/[\[\]]/g, '\\$&');
var regex = new RegExp('[?&]' + name + '(=([^&#]*)|&|#|$)'),
results = regex.exec(url);
if (!results) return null;
if (!results[2]) return '';
return decodeURIComponent(results[2].replace(/\+/g, ' '));
}
showAPI(specURL) {
this.setState({
specUrl: 'http://<remotehost>/' + specURL + '.json',
client: specURL,
});
}
toggleSidebar() {
this.setState((prevState) => ({
sidebarClass: prevState.sidebarClass === 'open' ? '' : 'open',
}));
}
render() {
return (
<div>
<Sidebar
showAPI={this.showAPI}
toggleClass={this.state.sidebarClass}
toggleSidebar={this.toggleSidebar}
client={this.state.client}
/>
<header className="header text-center">
<div className="text-right">
<div className="hamburger" onClick={this.toggleSidebar}>
<svg
xmlns="http://www.w3.org/2000/svg"
viewBox="0 0 30 30"
width="30"
height="30"
focusable="false">
<path
stroke="#c635d7"
strokeWidth="2"
strokeLinecap="round"
strokeMiterlimit="10"
d="M4 7h22M4 15h22M4 23h22"
/>
</svg>
</div>
<h3 className="heading text-center">{this.state.client}</h3>
</div>
</header>
<section className={`swagger-container ${this.state.sidebarClass}`}>
<Swagger specUrl={this.state.specUrl} />
</section>
</div>
);
}
}
类应用程序扩展组件{
建造师（道具）{
超级（道具）；
让client=this.getParameterByName（'client'，window.url）；
此.state={
侧边栏类：“打开”，
客户：客户？客户：“abc客户”，
specUrl：客户端
？`http://${client}.json`
：“/abc client.json”，
};
this.showAPI=this.showAPI.bind（this）；
this.toggleSidebar=this.toggleSidebar.bind（this）；
}
getParameterByName（名称、url）{
如果（！url）url=window.location.href；
name=name.replace（/[\[\]]/g，\\$&'）；
var regex=new RegExp（'[？&]'+name+'（=（[^&#]*）和|#|$），
结果=regex.exec（url）；
如果（！results）返回null；
如果（！results[2]）返回“”；
返回组件（结果[2]。替换（/\+/g'）；
}
showAPI（specURL）{
这是我的国家({
specUrl:'http://'+specUrl+'.json'，
客户：specURL，
});
}
toggleSidebar（）{
this.setState（（prevState）=>({
sidebarClass:prevState.sidebarClass=='open'？'''open'，
}));
}
render（）{
返回(
{this.state.client}
);
}
}
现在，我希望将它捆绑到react应用程序本身中（在本地提供服务），而不是远程主机。我知道该文件需要存在于公用文件夹中，但不知道如何在上面共享的javaScript中引用它。您可以使用fetch进行此操作。如果xxx.json位于公用文件夹的根目录中，请使用：
const data = fetch('xxx.json');
import data from ‘./data/xxx.json’;
我认为第二种方法减少了对无用http请求的需求，并且可能会减少代码的大小。在下一个示例中，您可以看到并确定数组为数据，它可以是axios或fetch请求之后来自后端的响应。您可以定义数据来模拟对象或数组中的响应，就像您喜欢的那样
import React, { useEffect, useState } from 'react';
import { View, Text, TextInput, StyleSheet, Dimensions, SafeAreaView, FlatList, TouchableOpacity, StatusBar } from 'react-native';
import ActionButton from 'react-native-action-button';
import Icon from 'react-native-vector-icons/FontAwesome';
import Header from '../../core/Header/Header';
import DismissKeyboard from '../../libs/DismissKeyboard';
const { width: WIDTH } = Dimensions.get('window');
import Guide from './Guide';
const styles = StyleSheet.create({
iconQr: {
fontSize: 36,
color: 'white',
},
inputContainer: {
marginTop: 10,
},
input: {
height: 45,
fontSize: 16,
paddingLeft: 45,
borderRadius: 10,
width: WIDTH - 55,
marginHorizontal: 25,
backgroundColor: '#FFFFFF',
},
container: {
flex: 1,
marginTop: StatusBar.currentHeight || 0,
},
});
const DATA = [
{
"empresa": "SHIPNOW",
"tipo_operacion": "ENTREGA",
"bultos": 1,
"sender_empresa": "SUCSHIPNOW",
"sender_remitente": "SHIPNOW",
"sender_direccion": "Av. de los Constituyentes 2985",
"sender_localidad": "CABA",
"sender_provincia": "CABA",
"sender_cp": 1428,
"comprador_apenom": "Lisandro Arguello",
"comprador_direccion": "Calle Jun\u00edn 2189",
"comprador_localidad": "Corrientes",
"comprador_provincia": "Corrientes",
"comprador_cp": 3400,
"usuario:": "shipnow",
"id:": 166308,
"zonaOrigen:": "AMBA",
"fecha_hora:": "2020-10-01 13:20:13",
"zona:": "NEA",
"confirmada:": 1,
"tipo_op:": 0,
"remito:": null,
"servicio:": "ENVIO ECOMMERCE",
"orden:": 1,
"rrId:": 61972,
"contrareembolso:": null,
"codigo_estado:": "011"
},
{ "empresa": "SHIPNOW", "tipo_operacion": "ENTREGA", "bultos": 1, "sender_empresa": "SUCSHIPNOW", "sender_remitente": "SHIPNOW", "sender_direccion": "Av. de los Constituyentes 2985", "sender_localidad": "CABA", "sender_provincia": "CABA", "sender_cp": 1428, "comprador_apenom": "Mellsa Picchio", "comprador_direccion": "Uruguay 1145", "comprador_localidad": "BBB", "comprador_provincia": "Corrientes", "comprador_cp": 3400, "usuario": "shipnow", "id": 165891, "zonaOrigen": "AMBA", "fecha_hora": "2020-09-30 07:24:41", "zona": "NEA", "confirmada": 1, "tipo_op": 0, "remito": null, "servicio": "ENVIO ECOMMERCE", "orden": 2, "rrId": 61973, "contrareembolso": null, "codigo_estado": "011" },
{ "empresa": "SHIPNOW", "tipo_operacion": "ENTREGA", "bultos": 1, "sender_empresa": "SUCSHIPNOW", "sender_remitente": "SHIPNOW", "sender_direccion": "Av. de los Constituyentes 2985", "sender_localidad": "CABA", "sender_provincia": "CABA", "sender_cp": 1428, "comprador_apenom": "Claudia Silva", "comprador_direccion": "Calle Playa Miramar 2754", "comprador_localidad": "Corrientes", "comprador_provincia": "Corrientes", "comprador_cp": 3400, "usuario": "shipnow", "id": 166152, "zonaOrigen": "AMBA", "fecha_hora": "2020-09-30 16:34:43", "zona": "NEA", "confirmada": 1, "tipo_op": 0, "remito": null, "servicio": "ENVIO ECOMMERCE", "orden": 3, "rrId": 61974, "contrareembolso": null, "codigo_estado": "011" },
{ "empresa": "SHIPNOW", "tipo_operacion": "ENTREGA", "bultos": 1, "sender_empresa": "SUCSHIPNOW", "sender_remitente": "SHIPNOW", "sender_direccion": "Av. de los Constituyentes 2985", "sender_localidad": "CABA", "sender_provincia": "CABA", "sender_cp": 1428, "comprador_apenom": "Claudia Silva", "comprador_direccion": "Azcuenga 1995", "comprador_localidad": "Corrientes", "comprador_provincia": "Corrientes", "comprador_cp": 3400, "usuario": "shipnow", "id": 166153, "zonaOrigen": "AMBA", "fecha_hora": "2020-09-30 16:34:43", "zona": "NEA", "confirmada": 1, "tipo_op": 0, "remito": null, "servicio": "ENVIO ECOMMERCE", "orden": 3, "rrId": 61974, "contrareembolso": null, "codigo_estado": "011" },
{ "empresa": "SHIPNOW", "tipo_operacion": "ENTREGA", "bultos": 1, "sender_empresa": "SUCSHIPNOW", "sender_remitente": "SHIPNOW", "sender_direccion": "Av. de los Constituyentes 2985", "sender_localidad": "CABA", "sender_provincia": "CABA", "sender_cp": 1428, "comprador_apenom": "Claudia Silva", "comprador_direccion": "Urquiza 2050", "comprador_localidad": "Corrientes", "comprador_provincia": "Corrientes", "comprador_cp": 3400, "usuario": "shipnow", "id": 166154, "zonaOrigen": "AMBA", "fecha_hora": "2020-09-30 16:34:43", "zona": "NEA", "confirmada": 1, "tipo_op": 0, "remito": null, "servicio": "ENVIO ECOMMERCE", "orden": 3, "rrId": 61974, "contrareembolso": null, "codigo_estado": "011" },
{ "empresa": "SHIPNOW", "tipo_operacion": "ENTREGA", "bultos": 1, "sender_empresa": "SUCSHIPNOW", "sender_remitente": "SHIPNOW", "sender_direccion": "Av. de los Constituyentes 2985", "sender_localidad": "CABA", "sender_provincia": "CABA", "sender_cp": 1428, "comprador_apenom": "Claudia Silva", "comprador_direccion": "Palmares Valley 50", "comprador_localidad": "Corrientes", "comprador_provincia": "Corrientes", "comprador_cp": 3400, "usuario": "shipnow", "id": 166155, "zonaOrigen": "AMBA", "fecha_hora": "2020-09-30 16:34:43", "zona": "NEA", "confirmada": 1, "tipo_op": 0, "remito": null, "servicio": "ENVIO ECOMMERCE", "orden": 3, "rrId": 61974, "contrareembolso": null, "codigo_estado": "011" },
]
function Delivieries({ navigation, route }) {
const [selectedId, setSelectedId] = useState(null);
const [guideNumber, setGuideNumber] = useState(null);
useEffect(() => route.params?.guideNumber && setGuideNumber(route.params?.guideNumber)
, [route.params?.guideNumber]);
const renderGuide = ({ item, index }) => {
console.log(item)
const backgroundColor = item.id === selectedId ? "#FFFFFF" : "#FFFFFF";
return (
<Guide
item={item}
index={index}
onPress={() => setSelectedId(item.id)}
style={{ backgroundColor }}
/>
);
};
return (
<>
<Header title="Entregas pendientes" isHome={false} />
<View style={{ marginTop: 25, marginLeft: 30, paddingBottom: 5 }}>
<Text>Ingresar número de ruta</Text>
</View>
<DismissKeyboard>
<View style={{ flex: 0.1, alignItems: 'center', justifyContent: 'center' }}>
<View style={styles.inputContainer}>
<TextInput
value={guideNumber}
onChangeText={(guideNumber) => setGuideNumber(guideNumber)}
placeholder="Número de ruta"
underlineColorAndroid="transparent"
placeholderTextColor="rgba(0,0,0,0.2)"
style={styles.input}
/>
</View>
</View>
</DismissKeyboard>
<SafeAreaView style={styles.container}>
<FlatList
data={DATA}
renderItem={renderGuide}
keyExtractor={(item) => item.id}
extraData={selectedId}
/>
</SafeAreaView>
<ActionButton
buttonColor="rgba(231,76,60,1)"
renderIcon={() => <Icon name="qrcode" style={styles.iconQr} />}
onPress={() => navigation.navigate('Scanner')}
position="center"
size={55}
/>
</>
);
};
export default Delivieries;
import React，{useffect，useState}来自“React”；
从“react native”导入{View、Text、TextInput、样式表、维度、SafeAreaView、FlatList、TouchableOpacity、StatusBar}；
从“反应本机操作按钮”导入操作按钮；
从“反应本机矢量图标/FontAwesome”导入图标；
从“../../core/Header/Header”导入标头；
从“../../libs/DismissKeyboard”导入DismissKeyboard；
const{width:width}=Dimensions.get（'window'）；
从“/Guide”导入指南；
const styles=StyleSheet.create({
iconQr：{
尺寸：36，
颜色：'白色'，
},
输入容器：{
玛金托普：10，
},
输入：{
身高：45，
尺寸：16，
paddingLeft:45，
边界半径：10，
宽度：宽度-55，
marginHorizontal:25，
背景颜色：“#FFFFFF”，
},
容器：{
弹性：1，
marginTop:StatusBar.currentHeight | | 0，
},
});
常数数据=[
{
“empresa”：“SHIPNOW”，
“tipo_operacion”：“ENTREGA”，
“bultos”：1，
“发送者”\u empresa:“SucchipNow”，
“发件人/汇款人”：“立即发货”，
“发件人地址”：“宪法第2985号大街”，
“发送者”——“卡巴”，
“发送方省”：“CABA”，
“发送者”cp:1428，
“买办”——“Lisandro Arguello”，
“买办董事”：“Calle Jun\u00edn 2189”，
“地方买办”：“Corrientes”，
“省买办”：“勘误表”，
“买办”：3400，
“usuario:：“shipnow”，
“id:”：166308，
“zonaOrigen:：“AMBA”，
“费查霍拉：：“2020-10-01 13:20:13”，
“zona:：“NEA”，
“confirmada:”：1，
“tipo_op:”：0，
“汇款：”：空，
“服务：：“环境电子商务”，
“奥登：”：1，
“rrId:”：61972，
“contareembolso:”：空，
“codigo_estado:：“011”
},
{“empresa”：“SHIPNOW”，“tipo_operacion”：“ENTREGA”，“bultos”：1，“sender_empresa”：“SUCSHIPNOW”，“sender_-Transcenter”：“SHIPNOW”，“sender_-direccion”：“Av.de los Constityentes 2985”，“sender_-localidad”：“CABA”，“sender_-provincia”：“CABA”，“sender_-cp”：1428，“Compador_-apenom”：“Melsa Picchio”，“Compador_-direccion”：“乌拉圭1145”，“地方买办”：“BBB”，“地方买办”：“Corrientes”，“Compador_cp”：3400，“usuario”：“shipnow”，“id”：165891，“zonaOrigen”：“AMBA”，“fecha_hora”：“2020-09-30 07:24:41”，“zona”：“NEA”，“confirmada”：1，“tipo_op”：0，“汇款”：空，“服务”：“ENVIO电子商务”，“orden”：2，“rrId”：61973，“Contrarembolso”：空，“codigo”：“estado”：”011" },
{“经营”：“SHIPNOW”，“tipo_operacion”：“ENTREGA”，“bultos”：1，“sender_empresa”：“SUCSHIPNOW”，“sender_-Transcente”：“SHIPNOW”，“sender_-direccion”：“Av.de los Constityentes 2985”，“sender_-localidad”：“CABA”，“sender_-provincia”：“CABA”，“sender_-cp”：1428，“Compador_-apenom”：“Claudia Silva”，“Compador_-direccion”：“Calle Playa Miramar 2754”当地买办：“Corrientes”，“Compador_provincia”：“Corrientes”，“Compador_cp”：3400，“Usario”：“shipnow”，“id”：166152，“Zonarigen”：“AMBA”，“fecha_hora”：“2020-09-30 16:34:43”，“zona”：“NEA”，“confirmada”：1，“tipo_op”：0，“汇款”：空，“服务”：“ENVIO电子商务”，“orden”：3，“rrId”：61974，“Contrarembolso”：空，“codigo”": "011" },
{“empresa”：“SHIPNOW”，“tipo_operacion”：“ENTREGA”，“bultos”：1，“sender_empresa”：“SUCSHIPNOW”，“sender_-Transcente”：“SHIPNOW”，“sender_-direccion”：“Av.de los Constityentes 2985”，“sender_-localidad”：“CABA”，“sender_-provincia”：“CABA”，“sender_-cp”：1428，“Compador_-apenom”：“Claudia Silva”，“Compador_-direccion”：“Azcuenga 1995”，“地方买办”：“勘误表”，“省买办”：“勘误表”，“省买办”：3400，“通常情况下”：“shipnow”，“id”：166153，“zonaOrigen”：“AMBA”，“fecha_hora”：“2020-09-30 16:34:43”，“区”：“NEA”，“confirmada”：1，“tipo_op”：0，“汇款”：空，“服务”：“环境”