Javascript 从函数中调用http.get时不返回响应
我调用了inturn调用http.get的函数。当直接调用search方法时,我得到了正确的结果,但是当我通过循环调用getAll方法时,我得到的是空的或未定义的结果Javascript 从函数中调用http.get时不返回响应,javascript,node.js,async-await,Javascript,Node.js,Async Await,我调用了inturn调用http.get的函数。当直接调用search方法时,我得到了正确的结果,但是当我通过循环调用getAll方法时,我得到的是空的或未定义的结果 function search(url, node, notFound) { return new Promise(function(resolve, reject) { http.get(url).then(function(data){ var val = 1; for (var i
function search(url, node, notFound) {
return new Promise(function(resolve, reject) {
http.get(url).then(function(data){
var val = 1;
for (var i = 0; i < data.length; i++) {
$searchModal.find(node).append(`<div class="col-xs-12"><label> ${label} ${val}</label></div>`);
var val = val + 1;
for (key in data[i]) {
var index = 1;
if (key == "Udfs") {
$searchModal.find(node).append(`<div class="col-xs-12"><label> ${key} </label></div>`);
for (udfKey in data[i][key]) {
$searchModal.find(node).append(`<div class="col-lg-3" ><div class="input-group"> <span class="input-group-addon" id="key">${udfKey}</span> <input id="accountModelId" type="text" disabled class="form-control" placeholder="" aria-describedby="accountModel" value="${data[i][key][udfKey]}"></div></div>`);
}
}
for (var j = 0; (Array.isArray(data[i][key])) && j < data[i][key].length; j++) {
$searchModal.find(node).append(`<div class="col-xs-12"><label> ${key} ${index}</label></div>`);
var index = index + 1;
for (objKey in data[i][key][j]) {
$searchModal.find(node).append(`<div class="col-lg-3" ><div class="input-group"> <span class="input-group-addon" id="key">${objKey}</span> <input id="accountModelId" type="text" disabled class="form-control" placeholder="" aria-describedby="accountModel" value="${data[i][key][j][objKey]}"></div></div>`);
}
}
if (!Array.isArray(data[i][key]) && !(data[i][key] instanceof Object)) {
$searchModal.find(node).append(`<div class="col-lg-3" ><div class="input-group"> <span class="input-group-addon" id="key">${key}</span> <input id="accountModelId" type="text" disabled class="form-control" placeholder="" aria-describedby="accountModel" value="${data[i][key]}"></div></div>`);
}
}
}
console.log(data);
resolve(data.toString());
if (data.length == 0) {
$searchModal.find(node).append(notFound);
}
}).catch(function err() {
$searchModal.show("modal")
$searchModal.find(node).append(notFound);
});
});
函数搜索(url、节点、未找到){
返回新承诺(功能(解决、拒绝){
get(url).then(函数(数据){
var=1;
对于(变量i=0;i
}
函数getAll(){
URL=[contactUrl、accountUrl、AssetUrl]
节点=['#contactData'、'#accountData'、'#assetData']
列表=[$noContacts,$noAccounts,$noAsset]
for(设i=0;ihttp.get
后的catch块中,应该reject(err)
2) 你没有得到答复的原因是你没有等待答复。您正在循环遍历一个数据集并发送请求,然后您的代码继续运行。您要做的是等待所有请求完成,然后做一些事情。下面是一个使用es6Promise
库中的all()
函数的示例
function getAll() {
urls = [contactUrl, accountUrl, assestUrl]
nodes = ['#contactData', '#accountData', '#assetData']
list = [$noContacts, $noAccounts, $noAsset]
var promiseArray = [];
for (let i = 0; i < urls.length; i++) {
promiseArray.push(search(urls[i], nodes[i], list[i]));
}
Promise.all(promiseArray)
.then((resp) => {
console.log(resp[0]); // response from 1st request
console.log(resp[1]); // response from 2nd request
}).catch((err) => {
console.log(err);
})
}
函数getAll(){
URL=[contactUrl、accountUrl、AssetUrl]
节点=['#contactData'、'#accountData'、'#assetData']
列表=[$noContacts,$noAccounts,$noAsset]
var promiseArray=[];
for(设i=0;ihttp.get
后的catch块中,应该reject(err)
2) 你没有得到答复的原因是你没有等待答复。您正在循环遍历一个数据集并发送请求,然后您的代码继续运行。您要做的是等待所有请求完成,然后做一些事情。下面是一个使用es6Promise
库中的all()
函数的示例
function getAll() {
urls = [contactUrl, accountUrl, assestUrl]
nodes = ['#contactData', '#accountData', '#assetData']
list = [$noContacts, $noAccounts, $noAsset]
var promiseArray = [];
for (let i = 0; i < urls.length; i++) {
promiseArray.push(search(urls[i], nodes[i], list[i]));
}
Promise.all(promiseArray)
.then((resp) => {
console.log(resp[0]); // response from 1st request
console.log(resp[1]); // response from 2nd request
}).catch((err) => {
console.log(err);
})
}
函数getAll(){
URL=[contactUrl、accountUrl、AssetUrl]
节点=['#contactData'、'#accountData'、'#assetData']
列表=[$noContacts,$noAccounts,$noAsset]
var promiseArray=[];
for(设i=0;i