JavaScript 各种参数 详解(四)

来源:互联网 发布:网络被运营商劫持了 编辑:程序博客网 时间:2024/04/29 04:21

62.java中建立数据库连接取数据

public void init()

{

String url="jdbc:odbc:javadata";

try

{

  Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");

  Connection con=DriverManager.getConnection(url,"sa","");//mssql database user SA and password

  DatabaseMetaData dma=con.getMetaData();

  System.out.println("Connect to"+dma.getURL());

  System.out.println(";Driver "+dma.getDriverName());

  System.out.println(";Version "+dma.getDriverVersion());

  System.out.println("");

  Statement stmt=con.createStatement();

  ResultSet rs=stmt.executeQuery("select * from company.dbo.TB_NAME where number=1");//Sql

  rs.next();

  String dispresult=rs.getString("name");

  System.out.println(dispresult);// Instead,you can display it in Paint() or use AWT etc.

  rs.close();

  stmt.close();

  con.close();

}

catch(SQLException ex)

{

  System.out.println("!!!SQL Exception !!!");

  while(ex!=null)

  {

   System.out.println("SQLState:"+ex.getSQLState());

   System.out.println("Message:"+ex.getMessage());

   System.out.println("Vendor:"+ex.getErrorCode());

   ex=ex.getNextException();

   System.out.println("");

  }

 

}

catch(java.lang.Exception ex)

{

  ex.printStackTrace();

}

}//

 

 

63.最小化窗口

window.blur()//

 

 

64.文档的路径

document.URL//

 

65.定时执行某段程序

setTimeout("change_color()",600);

 

66.设置为主页

function makeHome(){

  netscape.security.PrivilegeManager.enablePrivilege("UniversalPreferencesWrite");

  navigator.preference("browser.startup.homepage", location.href);

}//

 

67.设置为收藏

function addFav(){

  if(ie)

    window.external.AddFavorite(location.href,'WWW.OGRISH.COM : GROTESQUE MOVIES AND PICTURES');

  if(ns)

    alert("Thanks for the bookmark!/n/nNetscape users click OK then press CTRL-D");

}//

 

68.判断cookie是否可用

navigator.cookieEnabled;//

 

69.显示有模式的有页面的弹出窗口

function setbgcolor_onclick()

{

var color = showModalDialog("/mailpage/compose/colorsel.html",0,"help=0");

if (color != null)

{

  document.compose.bgcolor.value = color;

}

}//

 

 

70.截取小数点后两位

var a=3454545.4454545;

alert(a.toFixed(2));//

 

 

71.禁止选择页面上的文字来拷贝

<script>

function noEffect() {

  with (event) {

    returnValue = false;

    cancelBubble = true;

  }

  return;

}

</script>

<body onselectstart="noEffect()" oncontextmenu="noEffect()">//

 

72.屏蔽右键菜单

oncontextmenu="event.returnValue = false"//

 

73.事件禁止起泡

event.cancelBubble = true//

 

74.禁止在输入框打开输入法

<input style="ime-mode: disabled">//

 

75.屏蔽汉字和空格

<input name="txt"><input type="submit" onClick="alert(!/[^ -}]|/s/.test(txt.value))">//

 

76.用javascript判断文件是否存在

function Exists(filespec)

{

if (filespec)

{

  var fso;

  fso = new ActiveXObject("Scripting.FileSystemObject");

  alert(fso.FileExists(filespec));

}

}

选择图片<input type=file name=f1><p>

<input type="submit" onClick="Exists(f1.value)">//

 

77.获得当前的文本框选中的文字

<input onmouseup="alert(document.selection.createRange().text)" value=123>//

 

78.跳转至目标页面,同时不可返回

<a href="javascript:location.replace('http://www.sohu.com/')">sohu.com</a>//

 

 

79.获得当前的行是表格的第几行

<script>

function getrow(obj)

{

   if(event.srcElement.tagName=="TD"){

   curRow=event.srcElement.parentElement;

   alert("这是第"+(curRow.rowIndex+1)+"行");

 

   }

}

</script>

 

<table border="1" width="100%" onclick=getrow(this)>

  <tr>

    <td width="20%"> </td>

    <td width="20%"> </td>

    <td width="20%"> </td>

    <td width="20%"> </td>

    <td width="20%"> </td>

  </tr>

  <tr>

    <td width="20%"> </td>

    <td width="20%"> </td>

    <td width="20%"> </td>

    <td width="20%"> </td>

    <td width="20%"> </td>

  </tr>

</table>//

 

80.删除表格某行,xx表示某行,下标从0开始计算

document.all.myTable.deleteRow(xx)//

 

81.动态的向表格中添加行

<table id="t1" border="1">

</table>

<script language="JavaScript">

function add()

{

   t1.insertRow().insertCell().innerHTML = '<input name="test'+t1.rows.length+'">';

}//

 

82.event.x,event.clientX,event.offsetX区别:

x:设置或者是得到鼠标相对于目标事件的父元素的外边界在x坐标上的位置。clientX:相对于客户区域的x坐标位置,不

 

包括滚动条,就是正文区域。offsetx:设置或者是得到鼠标相对于目标事件的父元素的内边界在x坐标上的位置。

screenX:相对于用户屏幕。

 

 

83.显示是鼠标按钮的哪个

<body onMouseDown="alert(event.button)">点Mouse看看//

 

84.打开C盘

<form action="file:///c|/"><input type="submit" value="c:/ drive"></form>//

 

85.当前屏幕的分辨率

screen.width、screen.height//

 

86.设置表格中的内容

tbl.rows[0].cells[1].innerText=document.form.text1.value;//

 

 

87.本地快捷键

<p><a href="file:///::{208D2C60-3AEA-1069-A2D7-08002B30309D}" target="_blank">网上邻居</a></p>

<p><a href="file:///::{20D04FE0-3AEA-1069-A2D8-08002B30309D}/d:/web" target="_blank">我的电脑</a></p>

<p><a href="file:///::{450D8FBA-AD25-11D0-98A8-0800361B1103}" target="_blank">我的文档</a></p>

<p><a href="file:///::{645FF040-5081-101B-9F08-00AA002F954E}" target="_blank">回收站</a></p>

<p><a href="file:///::{20D04FE0-3AEA-1069-A2D8-08002B30309D}/::{21EC2020-3AEA-1069-A2DD-08002B30309D}"

 

target="_blank">控制面板</a></p>

<p><a href="file:///::{7007ACC7-3202-11D1-AAD2-00805FC1270E}">拨号网络</a>(windows 2000)</p>

 

 

88.IE菜单

<button onclick="min.Click()"><font face="webdings">0</font></button>//改变按钮上的图片

<input type=button  onclick="document.execCommand('CreateLink','true','true')"> //创建新连接

<input type=button  onclick="document.execCommand('print','true','true')"> //打印

<input type=button  onclick="document.execCommand('saveas','true','网站制作.htm')">//另存为htm

<input type=button  onclick="document.execCommand('saveas','true','网站制作.txt')">//另存为txt

document.execCommand("SaveAs")//保存为

document.execCommand('undo')//撤销上一次操作

 

89.web对话框

<SCRIPT>

var contents='<style>body,td{font:menu}img{cursor:hand}</style>';

contents+='<title>你要关闭我吗</title>';

contents+='<body bgcolor=menu>';

contents+='<table width=100% height=100% border=0>';

contents+='<tr><td align=center>';

contents+='你要关闭我吗?<br>';

contents+='<img src=dark.gif onclick=self.close() alt="...关闭">';

contents+='<img src=jet.gif onclick=self.close() alt="全是关闭">';

contents+='</td></tr></table>';

showModalDialog("about:"+contents+"","","dialogHeight:50px;dialogWidth:250px;help:no;status:no")

document.write(contents);

</SCRIPT>//

 

90.取第x,y的值

<button onclick="t1.rows[x].cells[y].innerText='guoguo'"></button>//

 

91.向新打开的网页上写内容

newwin=window.open('about:blank','','top=10');

newwin.document.write('');//

 

93.返回

javascript:history.go(-2);//

 

94.将页面上选中的内容复制到剪贴板

abcdefg

<input type='button'

 

onclick="window.clipboardData.setData('text',document.selection.createRange().text);" value='复制页面选中

 

的字符'>//

95.将页面上选中的内容复制到剪贴板

<INPUT TYPE="text" NAME="">kjhkjhkhkj<INPUT TYPE="button" onclick="document.execCommand('Copy', 'false',

 

null);">////

 

96.鼠标移到下拉框时自动全部打开

<select onmouseover="javascript:this.size=this.length" onmouseout="javascript:this.size=1"></select>//

 

97.获得本机的文件

var fso = new ActiveXObject("Scripting.FileSystemObject");

var f1 = fso.GetFile("C://bsitcdata//ejbhome.xml");

alert("File last modified: " + f1.DateLastModified); //

 

98.判断客户端是否是IE浏览器

因为document.all 是IE 的特有属性,所以通常用这个方法来判断客户端是否是IE浏览器,document.all?1:0;

 

99.创建新的下拉框选项

new Option(text,value)这样的函数//

 

100.在页面上画柱状图

<STYLE>

td{font-size:12px}

body{font-size:12px}

v/:*{behavior:url(#default#VML);} //这里声明了v作为VML公用变量

</STYLE>

<SCRIPT LANGUAGE="JavaScript">

mathstr=12;

document.write ("<v:rect fillcolor='red'

 

style='width:20;color:navy;height:"+5000/(1000/mathstr)+"'><br>&nbsp;%"+mathstr+"<br>4人<v:Extrusion

 

backdepth='15pt' on='true'/></v:rect>")

</SCRIPT>

<v:rect fillcolor='red' style='width:20;color:navy;height:200'><br><br>4人<v:Extrusion

 

backdepth='15pt' on='true'/></v:rect>

<v:rect fillcolor='yellow' style='width:20;color:navy;height:100'><br><br>4人<v:Extrusion

 

backdepth='15pt' on='true'/></v:rect>//

 

101.饼图

<style>

v/:*     { behavior: url(#default#VML) }

o/:*     { behavior: url(#default#VML) }

.shape    { behavior: url(#default#VML) }

</style>

<script language="javascript">

function show(pie)

{

pie.strokecolor=pie.fillcolor;

pie.strokeweight=10;

div1.innerHTML="<font size=2 color=red> " + pie.id +"</font> <font size=2>" + pie.title + "</font>";

}

function hide(pie)

{

pie.strokecolor="white";

pie.strokeweight=1;

div1.innerHTML="";

}

</script>

</head>

<body>

<v:group style='width: 5cm; height: 5cm' coordorigin='0,0' coordsize='250,250'>

<v:shape id='asp技术' style='width:10;height:10;top:10;left:0' title='得票数:6 比例:40.00%'

 

onmouseover='javascript:show(this);' onmouseout='javascript:hide(this);' href='http://www.cnADO.com'

 

CoordSize='10,10' strokecolor='white' fillcolor='#ffff33'><v:path v='m 300,200 ae

 

300,200,200,150,0,9437184 xe'/></v:shape>

<v:shape id='php' style='width:10;height:10;top:10;left:0' title='得票数:1 比例:6.67%'

 

onmouseover='javascript:show(this);' onmouseout='javascript:hide(this);' href='http://www.cnADO.com'

 

CoordSize='10,10' strokecolor='white' fillcolor='#ff9933'><v:path v='m 300,200 ae

 

300,200,200,150,9437184,1572864 xe'/></v:shape>

<v:shape id='jsp' style='width:10;height:10;top:10;left:0' title='得票数:2 比例:13.33%'

 

onmouseover='javascript:show(this);' onmouseout='javascript:hide(this);' href='http://www.cnADO.com'

 

CoordSize='10,10' strokecolor='white' fillcolor='#3399ff'><v:path v='m 300,200 ae

 

300,200,200,150,11010048,3145728 xe'/></v:shape>

<v:shape id='c#写的.netWEB程序' style='width:10;height:10;top:10;left:0' title='得票数:3 比例:20.00%'

 

onmouseover='javascript:show(this);' onmouseout='javascript:hide(this);' href='http://www.cnADO.com'

 

CoordSize='10,10' strokecolor='white' fillcolor='#99ff33'><v:path v='m 300,200 ae

 

300,200,200,150,14155776,4718592 xe'/></v:shape>

<v:shape id='vb.net写的.netWEB程序' style='width:10;height:10;top:10;left:0' title='得票数:2 比例:13.33%'

 

onmouseover='javascript:show(this);' onmouseout='javascript:hide(this);' href='http://www.cnADO.com'

 

CoordSize='10,10' strokecolor='white' fillcolor='#ff6600'><v:path v='m 300,200 ae

 

300,200,200,150,18874368,3145728 xe'/></v:shape>

<v:shape id='xml技术' style='width:10;height:10;top:10;left:0' title='得票数:1 比例:6.67%'

 

onmouseover='javascript:show(this);' onmouseout='javascript:hide(this);' href='http://www.cnADO.com'

 

CoordSize='10,10' strokecolor='white' fillcolor='#ff99ff'><v:path v='m 300,200 ae

 

300,200,200,150,22020096,1572864 xe'/></v:shape>

</v:group>

 

<v:group style='width: 6cm; height: 6cm' coordorigin='0,0' coordsize='250,250'>

<v:rect style='height:10;width:15;top:0;left:10' fillcolor='#ffff33'/>

<v:rect style='height:28;width:100;top:0;left:30' stroked='false'><v:textbox

 

style='fontsize:2'>asp技术</v:textbox/></v:rect>

<v:rect style='height:10;width:15;top:30;left:10' fillcolor='#ff9933'/>

<v:rect style='height:28;width:100;top:30;left:30' stroked='false'><v:textbox

 

style='fontsize:2'>php</v:textbox/></v:rect>

<v:rect style='height:10;width:15;top:60;left:10' fillcolor='#3399ff'/>

<v:rect style='height:28;width:100;top:60;left:30' stroked='false'><v:textbox

 

style='fontsize:2'>jsp</v:textbox/></v:rect>

<v:rect style='height:10;width:15;top:90;left:10' fillcolor='#99ff33'/>

<v:rect style='height:28;width:100;top:90;left:30' stroked='false'><v:textbox

 

style='fontsize:2'>c#写的.netWEB程序</v:textbox/></v:rect>

<v:rect style='height:10;width:15;top:120;left:10' fillcolor='#ff6600'/>

<v:rect style='height:28;width:100;top:120;left:30' stroked='false'><v:textbox style='fontsize:2'>vb.net

 

写的.netWEB程序</v:textbox/></v:rect>

<v:rect style='height:10;width:15;top:150;left:10' fillcolor='#ff99ff'/>

<v:rect style='height:28;width:100;top:150;left:30' stroked='false'><v:textbox style='fontsize:2'>xml技术

 

</v:textbox/></v:rect>

</v:group>

 

<div style="position: absolute; left: 10; top: 10; width: 760; height:16">

<table border="1" cellpadding="2" cellspacing="2" cellpadding="0" cellspacing="0"

 

style="border-collapse: collapse" bordercolor="#CCCCCC" width="100%" ID="Table1">

  <tr>

   <td width="100%" id=div1> </td>

  </tr>

</table>

</div>//

原创粉丝点击