将javascript变量分配给jsp代码? [英] assign javascript variable to jsp code?

问题描述

我在jsp中有4个arraylist，我想从javascript函数中获取列表元素.

I have 4 arraylist in jsp and I want to get elements of lists from javascript function.

从jsp arraylist中获取一个元素似乎没有问题.

it looks like there is no problem getting one element from jsp arraylist.

但是我不知道如何将多个或所有元素从jsp arraylist移到javascript代码.

But I don't know how to move multiple or all elements from jsp arraylist to javascript code.

下面是我的代码

<script>
    function makeTable(){
    for(c=0;c<row_num;c++){
        row[c]=document.createElement('tr'); 
        for(k=0;k<cell_num;k++) {
            cell[k]=document.createElement('td');
            cont = document.createElement('a');
            cont.href="./bbs_view.jsp?count=" + c;
            cont.innerHTML ="<%=title.get(0)%>";
            cell[k].appendChild(cont);
            row[c].appendChild(cell[0]);
        }
    }
}
</script>

如您所见，

上面的函数只能从jsp arraylist中获取一个元素.
有什么方法可以将<％= title.get(0)％>替换为
像<％= title.get(javascript var c)％>之类的东西?

as you can see, above function can get only one element from jsp arraylist.
is there any way to replace <%=title.get(0)%> to
something like <%=title.get( javascript var c)%>?

推荐答案

在您的脚本片段中发出一个javascript数组(假定标题是String的java集合)，并使用数组的js对应物.

Emit a javascript array within your scriplet (assumin titles is a java collection of Strings) and use the js counterpart of your array.

<script>

var jsArray = [];

<% int i = 0; foreach (String iterat : titles) { %>

jsArray[<%= i %>] = '<%= iterat %>';

<% i++; } %>
</script>

几乎没有意思(最好在自定义标签中使用此标签，但应该可以使用).

Is roughly unelegant (better have this in a custom tag, but should work).

注意:即时输入，可以在^^

BEWARE: typed on the fly, can have syntax typos in ^^

BigMike

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