1 javascript刷新页面的方法 window.location.reload(); 使用window.open()弹出的弹出窗口，刷新父窗口 window.opener.location.reload() 使用window.showDialog弹出的模式窗口 window.dialogArguments.location.reload();
2.javascript弹出窗口的两种实现方式 ---下面给两个弹出屏幕居中窗口的例子 window.open()方式 function ShowDialog(url) { var iWidth=300; //窗口宽度 var iHeight=200;//窗口高度 var iTop=(window.screen.height-iHeight)/2; var iLeft=(window.screen.width-iWidth)/2; window.open(url,"Detail","Scrollbars=no,Toolbar=no,Location=no,Direction=no,Resizeable=no, Width="+iWidth+" ,Height="+iHeight+",top="+iTop+",left="+iLeft); } window.showModalDialog方式 function ShowDialog(url) { var iWidth=300; //窗口宽度 var iHeight=200;//窗口高度 var iTop=(window.screen.height-iHeight)/2; var iLeft=(window.screen.width-iWidth)/2; window.showModalDialog(url,window,"dialogHeight: "+iHeight+"px; dialogWidth: "+iWidth+"px; dialogTop: "+iTop+"; dialogLeft: "+iLeft+"; resizable: no; status: no;scroll:no"); }
注意这里的第二个参数，window
3.页面中设置不进行缓存数据的方法
在jsp页面加入如下语句
<% response.setHeader("Pragma","No-Cache"); response.setHeader("Cache-Control","No-Cache"); response.setDateHeader("Expires", 0); %>
4.无提示关闭页面的方法 function CloseWin(){ var ua = navigator.userAgent; var ie = navigator.appName=="Microsoft Internet Explorer"?true:false; if(ie){ var IEversion = parseFloat(ua.substring(ua.indexOf("MSIE ")+5,ua.indexOf(";",ua.indexOf("MSIE ")))); if( IEversion< 5.5){ var str = ''; document.body.insertAdjacentHTML("beforeEnd", str); document.all.noTipClose.Click(); } else { window.opener =null; window.close(); } }else{ window.close() } }
5、定时关闭弹出的窗口---设置/清除定时器
scriptlanguage="JavaScript" !-- functioncloseit(){ setTimeout("self.close()",100000)//单位是毫秒，这里是100秒 setInterval("self.close()",100000)
window.clearTimeout(me.timer); window.clearInterval(me.timer); /script
6.javascript弹出子窗口中传值---通过url传值
<script language="javascript" type="text/javascript"> function fn_modify(pid){ var ModifyInfo=new Object(); window.showModalDialog("modify_main.asp?pid="+pid,ModifyInfo,"dialogHeight:180px;dialogWidth:300px;dialogLeft:;dialogTop:;resizable:off;center:on;help:off;scroll:off;status:off") Reload(); } function Reload(){location.href="abc.asp";} </SCRIPT>
<a href="abc.asp" onClick="fn_modify('这是值')">单击</a>
7.js隐藏/显示表单 document.all("id").style.display=="none";//隐藏 document.all("id").style.display=="";//显示 document.getElementById("bt").style.display=="none" document.getElementById("bt").style.display=="" id为table，input 的id
8.js控制表单元素有效/失效 document.getElementById("bt").disabled=true; document.all("Submit1").disabled=true;//失效 document.all("Submit1").disabled=false;//有效
设置/获取元素的值 document.getElementById("labTitle").innerHTML="IP模式";//设置值 document.getElementById("labTitle").innerHTML//获取值 labTitle 为div，span，table的id
实例1：
[code]<input id="mytext" type="text" value="我是不能用的"> <input type="button" value="disabled" onClick="javascript: document.all.mytext.disabled='false'"> <input type="button" value="enable" onClick="javascript: document.all.mytext.removeAttribute('disabled')">[/code]
实例2：
[code] <input id="mytext" type="text" value="我是能用的"> <input type="button" value="disable" onClick="if (mytext.disabled==false){ mytext.disabled=true;mytext.value='我是不能用的';this.value='enable'} else { mytext.disabled=false;mytext.value='我是能用的';this.value='disable'}"> [/code]
9.页面通过函数提交表单的方法 function exit(){ selcardForm.action="/NDHotel/queryTroom.do?method=exitSystem"; selcardForm.submit(); }
10.遍历radio方法 <input id="mode1" type="radio" name="workMode" value="1" checked>
var radios=document.getElementsByName("workMode"); var workMode=""; for(var i=0;i<radios.length;i++){ if(radios[i].checked==true){ workMode=radios[i].value; } }
11.向select中动态添加option
<select id="ddlProvince" name="ddlProvince" οnchange="cityResult()">
var prov=document.getElementById("ddlProvince"); prov.options.add(new Option("---请选择---","")); var pArray=zoneIdProvince.split("&"); for(var i=0;i<pArray.length;i++){ var idpArray=pArray[i].split("#"); var sZoneID=idpArray[0]; var sProvince=idpArray[1]; prov.options.add(new Option(sProvince,sZoneID)); }
12.页面中使用prototype ajax提交数据的实现方式(java)
一步：在<head></head>中添加以下js文件链接
<head> <script language="JavaScript" src="/NDHotel/js/prototype-1.6.js"></script> </head>
二步：把prototype-1.6.js文件放到/NDHotel/js/指定的目录中
三步：在<script type="text/javascript"></script>中声明以下调用函数
<script type="text/javascript"> function editIpSegment(){ var url='/NDHotel/ipsegmentset.do?method=roomChangeNotice'; var pars = 'startip='+startip+'&endip='+endip+'&lindex='+lindex; new Ajax.Request( url, {method: 'get', parameters: pars, asynchronous:false,onComplete:editResult}); }
function editResult(result){ var returnStr = result.responseText; if(returnStr =='fail'){ alert(""); return false; } } </script>
四步：实现后台调用
public ActionForward roomChangeNotice(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception { String result = ""; PrintWriter pw = RainPrintWriter.getPrintWriter(response); try { NotifyServiceTwo.sendMessage(4, 0); result = "success"; } catch (Exception e) { logger.error("roomChangeNotice" + e); } pw.write(result); pw.close(); return null; }
13.js中获取表单的值的方式:
document.getElementById("lindex").value document.all.lindex.value//lindex在页面中必须是唯一的
//设置获取焦点 document.getElementById("lindex").focus() document.all.startip.focus()
//设置失去焦点 document.getElementById("lindex").blur() document.all.startip.blur()
14.动态添加/删除表格中的行
<table width="100%" id="tdSearch" name="tdSearch" cellpadding="0" cellspacing="0" align="center"> </table>
//动态生成table的行 var autoId = 0; // 自增变量 function addRow(value1,value2){ var highQuery=document.getElementById("tdSearch"); highQuery.insertRow(); var newRow = highQuery.rows[highQuery.rows.length - 1]; newRow.id = "row_" + autoId; newRow.insertCell(); newRow.cells[0].innerHTML = "<input width='200' value='"+value1+"' οnchange='changeip("+autoId+")' type='text' id='bIPFrom_"+autoId+"'>-"; newRow.insertCell(); newRow.cells[1].innerHTML = "<input width='200' value='"+value2+"' type='text' id='bIPTo_"+autoId+"'> "; var cell2 = newRow.insertCell(); cell2.innerHTML = "<input class='btn_1word' type='button' class='HQ_BUTTON' value='-' onClick=removeRow('" + newRow.id + "')>"; cell2.setAttribute("class", "yellowCell2"); autoId=autoId+1; }
function removeRow(rowId){
var trRow = document.getElementById(rowId); //alert(trRow); //if(rowId!="row_0"){ trRow.removeNode(true); //} }
15. 集合 //显示导入进度条 document.all("btnImport").disabled=true; document.all("DataGrid_WaitDiv").style.left=100; document.all("DataGrid_WaitDiv").style.top=295; document.all("DataGrid_WaitDiv").style.display = "";
form1.action="/NDHotel/jsp/systemset/roomSet/uploadFile.jsp"; form1.submit();
13.新建一个窗口 function layer1AddGroup() { var url='/NDHotel/jsp/systemset/roomSet/addGroup.jsp'; var newwin=window.showModalDialog(url,window,"dialogWidth=470px;dialogHeight=400px;scroll=yes;status=no;help=no;"); }
//刷新父页面 function roomMainLeftRightFrame(){ var layer='<%=layer%>'; window.parent.parent.frames('view').location.href="/NDHotel/troom.do?method=roomSetLeftMenu&layer="+layer; }
14.设置文本框只读属性/设置文本框的颜色/设置radio选中 document.all("txt_AutoTime").readOnly=true; document.all("txt_AutoTime").style.backgroundColor="#d0d0d0"; runParamSetForm.radNotForcibly.checked=true;
//IP地址验证 function ipCheck(ipValue){ var reg = /^/d{1,3}(/./d{1,3}){3}$/; if(ipValue != ""){ if (reg.test(ipValue)){ var ary = ipValue.split('.'); for(key in ary){ if (parseInt(ary[key]) > 255 ) return false; } return true; }else return false; }else return true; }
