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我使用MongoDB中找回我的收藏的所有:嘗試發送db.collection()找到()返回到客戶端Ajax請求
rawData = db.collection('Forecasts').find({});
讓我想返回集合後這通過res.json()函數到客戶端。我怎麼能回報它。
添加我的服務器端代碼(使用Express和節點JS):
router.post('/forecastHistory', (req, res, next) => {
var rawData;
var forecasts = [];
// Connection url
var url = 'mongodb://localhost:27017/SimplyForecastDB';
// Connect using MongoClient
MongoClient.connect(process.env.MONGODB_URI || url, (err, db) => {
if (err) {
console.log('Unable to connect to MongoDB server.');
}
console.log('Connected to MongoDB server.');
rawData = db.collection('Forecasts').find({}).forEach(function(doc) {
//console.log(JSON.stringify(doc, undefined, 2));
forecasts.push(doc);
});
db.close();
});
forecasts.forEach(function(doc){
console.log(JSON.stringify(doc, undefined, 2));
});
res.json(forecasts);
});
添加我的客戶端代碼這裏(使用JS查詢和AJAX):
$("#history").click(function() {
$.post('/forecastHistory', function(result) {
result.forEach(function(forecast){
$("#forecast").html(
"<p class=\"lead\">" + forecast.location + "</p>" +
"The summary of today: " + forecast.summary +
"<br>" + "Temp: " + forecast.temperature + " C" +
"<br>" + "It feels like: " + forecast.feelsLike + " C" +
"<br>" + "The Humidity: " + forecast.humidity + " %" +
"<br>" + "Wind Speed: " + forecast.windSpeed + " km/h" +
"<br>"
)
});
});
});
我將不勝感激的幫幫我。
你好,首先如果你的要求只會從數據庫中,那麼你應該使用get方法,而不是發佈數據。你可以console.log結果在你的客戶端並告訴我結果嗎? – kikiwie
嗨,我需要將rawData對象移到客戶端,它在這個服務器端代碼中不適用於我。 –