我是 React js 的新手，我正在尝试根据用户输入简单地动态更改地图，但是对于特定位置的搜索请求，此错误会出现
XMLHttpRequest 无法加载https://maps.googleapis.com/maps/api/place/nearbysearch/json?location=undef...ined&半径=1000&关键字=fdtbf&key=myapikey。
请求中不存在“Access-Control-Allow-Origin”标头
资源。起源 'http://本地主机:3000' 因此不允许
使用权。
这是我的节点js代码
import express from 'express';
import path from 'path';
import bodyParser from 'body-parser';
//Import To Pord
import api from './routes/api';
import auth from './routes/auth'
import cookieParser from 'cookie-parser';
import {LoginCheck} from './middleware/authCheck';
import cors from 'cors';
//All Webpack Stuff
import webpackConfig from '../../webpack.config.dev';
import webpack from 'webpack';
import webpackMiddleware from 'webpack-dev-middleware'
import webpackHotMidleware from 'webpack-hot-middleware';
//Server Side Rendering Stuff
import {match, RouterContext } from 'react-router';
import { Provider } from 'react-redux';
import { dispatch } from 'redux';
import { renderToString, renderToStaticMarkup } from 'react-dom/server';
import reducer from '../../src/client/Reducers';
import routes from '../client/routes';
import thunk from 'redux-thunk';
import { createStore ,applyMiddleware} from 'redux'
import React from 'react'
import Helmet from 'react-helmet';
import serialize from 'serialize-javascript';
//PassPort Stuff Import This
let app = express();
app.use(bodyParser.json());
app.use(express.static('public'))
const compiler = webpack(webpackConfig);
app.use(webpackMiddleware(compiler, {
hot: true,
publicPath: webpackConfig.output.publicPath,
noInfo: true
}));
app.use(webpackHotMidleware(compiler));
app.use(cors());
app.use(cookieParser('sdkhcvlsd684684JJJklvblsdkuvgblsduvblsidvksdjbvlsjvuywlsfvliusdgv'));
//Check Auth MiddleWare
app.use(LoginCheck)
//Passport Api
app.use('/auth',auth);
//Our Api
app.use('/p',api);
app.get('/*', (req, res,next) => {
// res.sendFile(path.join(__dirname, '../../index.html'))
// Server Side Rendering Starts
match({routes:routes(),location:req.url},(err,redirectLocation,renderProps) => {
if (err) return next(err);
if (redirectLocation) {
return res.redirect(302, redirectLocation.pathname + redirectLocation.search)
}
// if (!renderProps) {
// res.redirect('/404')
// }
const components = renderProps.components;
const Comp = components[components.length - 1].WrappedComponent;
const fetchData = (Comp && Comp.fetchData) || (() => Promise.resolve())
const initialState = {}
const store = createStore(reducer, initialState, applyMiddleware(thunk));
const { location, params, history } = renderProps
fetchData({ store, location, params, history }).then(() => {
const body = renderToString(
<Provider store={store}>
<RouterContext {...renderProps} />
</Provider>
)
const state = store.getState();
// console.log(state)
let head = Helmet.rewind();
res.header('Access-Control-Allow-Origin', "*");
res.header('Access-Control-Allow-Methods', 'GET,PUT,POST,DELETE');
res.header('Access-Control-Allow-Headers', 'Content-Type');
res.send(`<!DOCTYPE html>
<html>
<head>
${head.title}
${head.meta}
${head.link}
</head>
<body>
<div id="app" >${body}</div>
<script>window.__STATE__=${JSON.stringify(state)}</script>
<script src="/bundle.js"></script>
</body>
</html>`)
})
.catch((err) => next(err))
})
});
app.listen(3000 ,() => {
console.log('Listening')
});
这是我的 axios 请求
export function getPlaceFromCoords(term,coords) {
// https://maps.googleapis.com/maps/api/place/nearbysearch/json?location=13.0826802,80.2707184&radius=500&keyword=parks&key=AIzaSyAZbur2hq7p3UxjYrA2_G4ctpswFi0pO3A
console.log(coords)
return dispatch => {
return axios.get(`https://maps.googleapis.com/maps/api/place/nearbysearch/json?location=${coords.lat},${coords.lng}&radius=1000&keyword=${term}&key=${config.MAP_API}`).then(response => {
return response.data
})
}
}
