我想建立一个从数据库返回产品的网站,当单击“查看更多”时,应该在另一个 html 页面中从服务器返回产品详细信息。问题是,当我单击“查看更多”时,productID%20=%20null :(。
产品详细信息 = 第二个 html 页面。
ProductDetails = div - 在index.html 中,其中产品从服务器返回
<script>
var productsUrlList = 'https://finalonlineshop.firebaseio.com/.json';
async function getProductsFromServer() {
var productsResponse = await fetch(productsUrlList)
var products = await productsResponse.json();
return products;
}
async function showProducts(productsPromise) {
var products = await productsPromise;
var generatedHTML = '';
var productsIDs = Object.keys(products);
productsIDs.forEach(productID => {
var product = products[productID];
generatedHTML += getGeneratedHTMLForProduct(productID, product);
});
document.getElementById('categories').innerHTML = generatedHTML;
}
function getGeneratedHTMLForProduct(productID, product) {
var generatedHTML = `
<div id = categoriesDiv>
<img class = "categoryImage" src = ${product.Image} />
<div class = "categoryName">${product.Name}</div>
<div class = "categoryPrice">$ ${product.Price}</div>
<br>
<button id = "seeMore" onclick = "seeMore('${productID}')">See
more</button>
</div>
`;
return generatedHTML;
}
function seeMore (productID) {
window.location = `./productDetails.html?productID = ${productID}`;//issue
}
function getProductIDFromUrl () {
var params = new URLSearchParams(window.location.search);
var productID = params.get('productID');
return productID;
}
async function getDetailsFromServer(productID) {
var detailsResponse = await fetch(`https://finalonlineshop.firebaseio.com/Products/details/${productID}.json`);
var details = await detailsResponse.json();
return details;
}
async function seeDetails(detailsPromise) {
var details = await detailsPromise;
var generatedHTML = `
<div id = "detailsAboutProduct">
<img src = "${details.Image}" /> //Cannot read property "Image" of null
<div>${details.Name}</div>
<div>${details.Details}</div>
<div>$ ${details.Price}</div>
<div>${details.Qty}</div>
<button id = "addToCart" onclick = "addToCart();">Add to
cart</button>
</div>
`;
document.getElementById('details').innerHTML = generatedHTML;
}
</script>
最佳答案
去掉 URL 中 =
周围的空格,编码为 %20
。您还应该使用 encodeURIComponent()
转义产品 ID 中的任何特殊字符。
function seeMore (productID) {
window.location = `./productDetails.html?productID=${encodeURIComponent(productID)}`;
}
关于javascript - window.location 结果为空,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/52170562/