在jsp页面中包含外部Java脚本文件 [英] include external java script file in jsp page

问题描述

我有一个名为pageing.js的外部JavaScript文件.以下是文件的内容:

I have an external JavaScript file named paging.js. Following are the contents of the file:

function Pager(tableName,itemPerPage){
    this.tableName = tableName;
    this.itemPerPage = itemPerPage;
    this.currentPage = 1;
    this.pages = 0;

    this.init()= function(){
        alert("init called ");
        var rows = document.getElementById(tableName).rows;
        var records = (rows.length - 1);
        this.pages = Math.ceil(records / itemPerPage);
    }

    this.showPageNav = function(pagerName,positionId){
        alert("show page navi call");
        var element = document.getElementById(positionId);
        var pagerHtml = '<input src = "next.jpg" type="image">';
        pagerHtml += '<input src = "next.jpg" type="image">' ;
        element.innerHTML = pagerHtml;
    }
}

现在，我尝试从jsp页面调用init，例如.

Now I tried to call init from my jsp page like .

<script type="text/javascript">
                        var pager = new Pager('results',7);
                        pager.init();
                    </script>

此代码是我在完成我的jsp页面中的正文部分之前输入的.

This code i put before complete my body part in my jsp page.

为包含此页面，我在行中添加了

For including this page I put line like

<script type="text/javascript" 
                  src="${pageContext.request.contextPath}/js/paging.js"></script>

但是我无法调用init方法.有谁可以帮助我发现问题?

But i can't able to call init method. Is there anyone to help me for finding problem?

推荐答案

这行代码就是问题所在:

This line of code is the problem:

this.init()= function(){

将其更改为:

this.init=function() {

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