Question

我有一个ArrayList<Product>我希望在我的<script>代码中访问其getter。它只是根本不起作用。我想知道是否有可能访问<script>标签内的getter值。

JavaScript的：

var counter = 1;
var iteration1 = "productid" + counter;
var iteration2 = "orderquantity" + counter;
var totalPrice = 0;
function compute() {
    while(document.getElementById(iteration1)[0] !== null && document.getElementById(iteration2)[0] !== null) {
        var price = 0;
        var isDone = false;
        for(var i = 0; i < products.size() && isDone === false; i++) {
            if(products.get(i).getProductID() === document.getElementById(iteration1)[0]) {
                price = products.get(i).getProductPrice() * document.getElementById(iteration2)[0];
                totalPrice += price;
                isDone = true;
            }
        }
        counter++;
        iteration1 = "productid" + counter;
        iteration2 = "orderquantity" + counter;
    }
    document.getElementById("totalPrice").innerHTML = totalPrice;
}

我还在考虑是否可以使用其他解决方案来访问其值，例如将其值放在<a id="iteration1">或其他内容中。但我似乎无法找到解决方案，因为我的Java中的变量与我id=""中的值不同。

<%
    ArrayList<Product> products = (ArrayList<Product>)session.getAttribute("filteredproducts");
    int counter = 1;
    String iteration1 = "productid" + counter;
    String iteration2 = "orderquantity" + counter;
    for(Product p: products) {
%>
<tr>
    <td>
        <a id="iteration1"><%=p.getProductID()%></a>
    </td>
    <td>
        <%=p.getProductLine()%> (Php <a id="iteration2"><%=p.getProductPrice()%></a>)
    </td>
</tr>
<%}%>

Answer 1

我终于在评论部分的上述链接的帮助下解决了我的问题。只是分享它，这是我使用的代码：

JavaScript的：

function compute() {
    var counter = 1;
    var iteration1 = "productid" + counter;
    var iteration2 = "productquantity" + counter;
    var totalPrice = 0;
    var idArray = new Array();
    var priceArray = new Array();
    <%
        for(Product p: products) {
    %>
        idArray.push("<%=p.getProductID()%>");
        priceArray.push("<%=p.getProductPrice()%>");
    <%}%>
    for(var j = 0; j < click; j++) {
        var isDone = false;
        for(var i = 0; i < idArray.length && isDone === false; i++) {
            if(idArray[i] === document.getElementById(iteration1).value) {
                totalPrice += priceArray[i] * document.getElementById(iteration2).value;
                isDone = true;
            }
        }
        counter++;
        iteration1 = "productid" + counter;
        iteration2 = "productquantity" + counter;
    }
    document.getElementById("totalPrice").innerHTML = totalPrice;
}

访问JavaScript代码中的getter

1 个答案: