BlogJava-至尊贝贝的魔方-随笔分类-代码：ＪａｖａＳｃｒｉｐｔ

[20100531]-[Javascript]-[IE判断是否网页元素加载完毕]

至尊贝贝 — Mon, 31 May 2010 09:17:00 GMT

function document.onreadystatechange()
{

if (document.readyState=="complete") {
    change11();
   }
}
function change11(){

    var year11= (new Date()).getFullYear();

    var targetdiv1 = document.getElementById('idResultsTableParent');
    var targettable1 = targetdiv1.firstChild;
    targettable1.rows(0).cells(2).innerHTML=(year11-1)+'年次均费用';
    targettable1.rows(0).cells(3).innerHTML=(year11-2)+'年次均费用';
    targettable1.rows(0).cells(4).innerHTML=(year11-3)+'年次均费用';
    targettable1.rows(0).cells(5).innerHTML=(year11-4)+'年次均费用';
    targettable1.rows(0).cells(6).innerHTML=(year11-1)+'年同比';
    targettable1.rows(0).cells(7).innerHTML=(year11-2)+'年同比';
    targettable1.rows(0).cells(8).innerHTML=(year11-3)+'年同比';
}

只对IE有效

至尊贝贝 2010-05-31 17:17 发表评论

Ajax从服务端读取图片数据

至尊贝贝 — Wed, 19 May 2010 09:20:00 GMT

服务端代码:

@Action(value = "/imageload")
    public String imageLoad ()throws Exception {

        File f = new File ("d:/down.jpg");
        FileInputStream in = new FileInputStream (f);
        byte[] b = new byte[in.available()];
        in.read(b);
        HttpServletResponse response = ServletActionContext.getResponse();
//        response.setCharacterEncoding("UTF-8");
        response.setContentType("image");
        OutputStream pwt = response.getOutputStream();
        pwt.write(b);
        pwt.flush();
        pwt.close();
        return null;
    }

客户端代码:

<%@ page language="java" contentType="text/html; charset=utf-8"
    pageEncoding="utf-8"%>
DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Insert title heretitle>
<script type="text/javascript" src="js/jquery-1.4.2.min.js">script>
head>
<body>
<img id="img1" src="">img>
<script type="text/javascript">
    function load() {
        $('#img1').attr('src', 'subject/imageload.action');
    }
script>

<button onclick=load();>点击获取button>
body>
html>

至尊贝贝 2010-05-19 17:20 发表评论

JavaScirpt

至尊贝贝 — Thu, 31 Dec 2009 06:11:00 GMT

从Date类型中取形如 20091201 字符串

function getDate(s_date) {

    var str_date = new Array();
    str_date.push(s_date.getFullYear());
    str_date.push(s_date.getMonth() < 9 ? "0" + (s_date.getMonth() + 1)
            : (s_date.getMonth() + 1));
    str_date.push(s_date.getDate() < 10 ? "0" + s_date.getDate() : s_date
            .getDate());
    return str_date.join("");

}

至尊贝贝 2009-12-31 14:11 发表评论

JavaScript 在字符串中统计某个字符的次数

至尊贝贝 — Wed, 16 Dec 2009 12:37:00 GMT

//查找字符串中的逗号
var s = "aa,bb,cc,"
//方法一
var count =0;
a.replace(/[,]/g,function(){
count=count+1;
return "a";
}
)
alert(count);

//方法二
var r = a.split(",");
r.pop();
alert (r.length);
//方法三
alert(a.replace(/[^,]/g,'').length);

至尊贝贝 2009-12-16 20:37 发表评论