我正在尝试找到一种使用google map API显示google map位置并同时将搜索到的位置存储在mysql数据库中的方法。但是在这里我无法做到这两者，因为单击时不会将值传递到route中的nodejs文件中，也不会一起显示在地图上的位置。我正在尝试找到一种方法来解决这两个问题。请同时指导我。
我的代码是-
server.js
const ejs = require('ejs')
app.set('views',path.join(__dirname+'/views'));
app.set('view engine', 'ejs');
app.use('/', require('./display.js'));
app.get('/', (req, res,next) => {
const loc = req.body.message;
console.log(loc , "location")
res.render('location', {
data: req.body, // { location }
errors: {
message: {
msg: 'A message is required'
},
email: {
msg: 'That email doesn‘t look right'
}
}
})
next();
})
app.get('/saveInDatabase',function(req,res){
// var post = {from:'me', to:'you', msg:'hi'};
var post =req.body;
db.query('INSERT INTO locations values '+ post +";", function(err, result) {
if (err) throw err
else{
console.log("saveInDatabase Result = ", result);
res.render ('location');
}
});
});
app.post('/database', function(req,res,next){
console.log(req.body, "req.solve" )
connection.query('SELECT * FROM locations', function(err, result) {
if(err){
throw err;
} else {
obj = {print: result};
res.render('viewDatabase', obj);
}
});
})
app.listen(8080,(req,res)=>{
console.log('server running on port 8080')
})
location.ejs
<html>
<head>
<title>Geolocation</title>
//code
</head>
<body>
<!-- <div id="database" (click) = "Check Database"></div> -->
<form method="post" action="/database" novalidate>
<div class="form-field">
<label for="location">Check Values in Database : </label>
<!-- <input type="text" id="location" name="message" placeholder= "Location" rows="4" autofocus></input> -->
</div>
<div class="form-actions">
<button class="btn" type="submit">Check Database</button>
</div>
</form>
<br>
<br>
<form method = "post" action = "/saveInDatabase" novalidate>
<div id="floating-panel" class = "form-field">
<input id="address" type="textbox" value="Sydney, NSW">
</div>
<div class= "form-actions">
<button id="submit" type="submit" value="Insert and View Location">Insert and View Location</button>
</div>
</form>
<div id="map"></div>
<script>
// NEW CODE
function initMap() {
var map = new google.maps.Map(document.getElementById('map'), {
zoom: 8,
center: { lat: -34.397, lng: 150.644 }
});
var geocoder = new google.maps.Geocoder();
document.getElementById('submit').addEventListener('click', function () {
geocodeAddress(geocoder, map);
});
}
function geocodeAddress(geocoder, resultsMap) {
var address = document.getElementById('address').value;
// var address = document.getElementById('events').innerHTML;
//code
}
</script>
</body>
</html>