本文实例讲述了Javascript连接Access数据库的方法。分享给大家供大家参考。具体实现方法如下：
var roc = roc || {};
roc.db = roc.db ||{};
//创建一个连接
roc.db.createDb = function(){
var conn = new ActiveXObject("ADODB.Connection"),
fso = new ActiveXObject("Scripting.FileSystemObject"),
connstr = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + fso.GetFile("./db/Sigma.mdb");
conn.Open(connstr);//打开数据库
roc.db.conn = conn;
return roc.db.conn;
};
//获取连接
roc.db.getDb = function(){
if( roc.db.conn ){
return roc.db.conn;
}else{
return roc.db.createDb();
}
};
//关闭连接
roc.db.closeConn = function(){
if( roc.db.conn ){
roc.db.conn.close();
roc.db.conn = null;
}
};
//获取结果集
roc.db.getRs = function( sqlStr ){
var mysql = roc.dom.trim( sqlStr );
if(mysql == ''){return;}
var rs = new ActiveXObject("ADODB.Recordset"),
myConn = roc.db.getDb();
rs.open( sqlStr , myConn );
return rs;
};
//关闭结果集
roc.db.closeRs = function( rs ){
rs.close();
rs =null;
};
//更新、插入
roc.db.execute = function( sqlStr ){
var myConn = roc.db.getDb();
myConn.execute( sqlStr );
roc.db.closeConn();
};
/*---------Sigma:“我任你践踏我的尊严而毫不生气，是因为我爱你。”---------*/
roc.dom = roc.dom ||{};
roc.dom.id = function( id ){
if(typeof id == 'string' || id instanceof String) {
return document.getElementById(id);
} else if(id && id.nodeName && (id.nodeType == 1 || id.nodeType == 9)) {
return id;
}
return null;
};
/**
* @method tagName 根据标签获取指定dom元素
* @param {String} tagName 元素标签名称
* @param {HTMLElement} el 元素所属的文档对象 默认为当前文档
* @return {HTMLElement} 返回HTMLElement元素
*/
roc.dom.tagName = function(tagName, el) {
var el = el || document;
return el.getElementsByTagName(tagName);
};
//删除左右两端的空格
roc.dom.trim = function (str) {
return (str+'').replace(/(^\s*)|(\s*$)/g, "");
}
/**
* @method show 显示目标元素
* @param {Element} element 目标元素或目标元素的id
* @param {String} element 目标元素
*/
roc.dom.show = function (element) {
element = roc.dom.id(element);
element.style.display = '';
return element;
};
/**
* @method hide 隐藏目标元素
* @param {Element} element 目标元素或目标元素的id
* @param {String} element 目标元素
*/
roc.dom.hide = function (element) {
element = roc.dom.id(element);
element.style.display = 'none';
return element;
};
/**
* @method hasClass 判断元素是否含有 class
* @param {Element} el 元素
* @param {String} className class 名称
*/
roc.dom.hasClass = function(el, className){
var re = new RegExp('(^|\\s)' + className + '(\\s|$)');
return re.test(el.className);
};
/**
* @method addClass 给元素添加 class
* @param {Element} el 元素
* @param {String} className class 名称
*/
roc.dom.addClass = function(el, className){
if(!roc.dom.hasClass(el, className)){
el.className = el.className + ' ' + className;
}
};
/**
* @method removeClass 给元素移除 class
* @param {Element} el 元素
* @param {String} className class 名称
*/
roc.dom.removeClass = function(el, className){
var re = new RegExp('(^|\\s)' + className + '(?:\\s|$)')
el.className = el.className.replace(re, '$1');
};
/**
* date对象命名空间
*
* @namespace
* @name data
*/
roc.date = roc.date || {};
/**
* @method format 对目标日期对象进行格式化
* @param {Object} timestamp 目标日期对象
* @return {String} str 格式化后的时间
*/
roc.date.format = function(timestamp) {
if(timestamp =='' )return '';
var str = '',
temptime = new Date(Number(timestamp));
str += temptime.getFullYear() + '-';
str += temptime.getMonth() + 1 + '-';
str += temptime.getDate() + ' ';
str += String(temptime.getHours()).length > 1 ? (temptime.getHours() + ':') : ('0' + temptime.getHours() + ':');
str += String(temptime.getMinutes()).length > 1 ? (temptime.getMinutes()) : ('0' + temptime.getMinutes());
return str;
};
/**
* cookie对象命名空间
*
* @namespace
* @name cookie
*/
roc.cookie = roc.cookie || {};
/**
* @method set
* @param {String} name cookie的键
* @param {String} value cookie的值
* @param {String} expires 失效时间(小时)
* @param {String} domain domain域
* @param {String} path 路径
* @param {String} secure 是否支持https
*/
roc.cookie.set = function(name, value, expires, domain, path, secure) {
var text = encodeURIComponent(value), date = expires;
if(date && typeof date === 'number') {
date = new Date();
date.setTime(date.getTime() + (expires * 3600000));
}
if(date instanceof Date) {
text += '; expires=' + date.toUTCString();
}
if(domain) {
text += '; domain=' + domain;
}
if(path) {
text += '; path=/' + path;
} else {
text += '; path=/';
}
if(secure) {
text += '; secure';
}
document.cookie = name + '=' + text;
};
/**
* @method get
* @param {String} name cookie的键
*/
roc.cookie.get = function(name) {
var ret,
m;
if(name) {
if((m = document.cookie.match('(?:^| )' + name + '(?:(?:=([^;]*))|;|$)'))) {
ret = m[1] ? decodeURIComponent(m[1]) : '';
}
}
return ret;
};
roc.util = roc.util || {};
roc.util.loger = function( type ,msg ){
switch(type){
case 'pop':
alert(msg);
break;
case 'float':break;
default:break;
}
};
roc.util.resultBlink = function( msg ){
//操作闪烁提示
var $ = roc ,
opt = $.dom.id("optTip");
$.util.toogle = $.util.toogle || 0;
clearTimeout(roc.util.t);//调试
opt.innerHTML = msg ;
$.dom.show(opt);
opt.className = "blink" + $.util.toogle%2;
$.util.toogle++;
roc.util.t = setTimeout(function(){
$.dom.hide(opt);
},$.config.BLINK_DELAY);
};
roc.util.onlyInputNumber = function( id ){
//限制文本框、文本域只能输入数字
var $ = roc ,
num = $.dom.id( id );
if( num.tagName.toLowerCase() != 'input' || num.tagName.toLowerCase() != 'textarea' ){
return ;
}
$.util.addEvent( num , 'keypress' , function( e ){
var e = e || window.event ;
if(e.keyCode >= 48 && e.keyCode <= 57){alert()
return true;
}
return false;
});
};
roc.util.addEvent = function(elem, type, fn, useCapture) {
if(elem.addEventListener) { //DOM2.0
elem.addEventListener(type, fn, useCapture);
return true;
} else if(elem.attachEvent) { //IE5+
elem.attachEvent('on' + type, fn);
return true;
} else { //DOM 0
elem['on' + type] = fn;
}
};
roc.config = roc.config || {};
roc.config = roc.config ||{
BLINK_DELAY:3000,
SELECT_DELAY:1000
}
roc.search = roc.search || {};
roc.search.getValues = function( e ){
//批量获取表单值,用于插入
var $ = roc,
allIsNull = true,
wrapStr = function( num ){
return '"'+ num + '"';
},
vals =[];
for(var i in e[0]){
var v =$.dom.trim($.dom.id( e[0][i] ).value + '');
if( v != ''){
allIsNull = false;
}
switch( e[1][i] ){
case 'date':
case 'text':
vals.push( wrapStr(v) );
break;
case 'num':
vals.push( v );
break;
default:break;
}
}
if(allIsNull){
return false;
}
return vals.join(',');
};
roc.search.getSelSql = function(){
//组装搜索sql
var $ = roc,
addr = $.dom.trim($.dom.id("s_uaddr").value),
phone = $.dom.trim($.dom.id("s_uphone").value),
style = $.dom.trim($.dom.id("s_style").value),
year = $.dom.trim($.dom.id("s_year").value ),
month = $.dom.trim($.dom.id("s_month").value),
date = $.dom.trim($.dom.id("s_date").value),
datetype = $.dom.trim($.dom.id("s_datetype").value),
mysql = 'select * from inslist where 1=1 ',
datetypeName = datetype == 0 ? 'selltime':'addtime';
if( addr != ''){
mysql += ' and uaddr like "%' + addr + '%"';
}
if( phone != ''){
mysql += ' and uphone ="' + phone + '"';
}
if( style != ''){
mysql += ' and typeid = ' + style + '';
}
if( year !=''){
mysql += ' and year(' + datetypeName + ') = ' + year + '';
}
if( month !=''){
mysql += ' and month(' + datetypeName + ') = ' + month + '';
}
if( date !=''){
mysql += ' and date(' + datetypeName + ') = ' + date + '';
}
return mysql;
};
//搜索
roc.search.seeking = function(){
if( !roc.search.getLock()){return;}
var $ = roc ,
mySql = $.search.getSelSql();
html = $.search.getSel( mySql);
$.search.setLock(false);
$.dom.id("searchResult").innerHTML = html;
$.util.resultBlink("查询完毕");//闪烁
};
roc.search.getSel = function( sqlStr ){
//查询
var $ = roc,
rs = $.db.getRs( sqlStr ),
filtRs = function ( str ){//处理字段
return ( str + '' ) == 'null' ? '':str;
},
num = 1;
total_receive = 0,
total_prize = 0,
html = "| 序号 | " + "用户地址 | " + "用户电话 | " + "型号 | " + "代收款 | " + "货款 | " + "余额 | " + "安装人 | " + "销售电话 | " + "备注 | " + "销售日期 | " + "记录时间 | " + "
|---|---|---|---|---|---|---|---|---|---|---|---|
| " + id + " | " +"" + uaddr + " | " +"" + uphone + " | " +"" + typeid + " | " +"" + received + " | " +"" + prize + " | " +"" + unreceived + " | " +"" + installerid + " | " +"" + sellerid + " | " +"" + remark + " | " +"" + selltime + " | " +"" + addtime + " | " +"
| " +" | Σ | " +"" +" | " +" | " + total_receive +" | " +"" + total_prize +" | " +"" + (total_prize - total_receive ) +" | " +"" +" | " +" | " +" | " +" | " +" |
希望本文所述对大家的javascript程序设计有所帮助。