页面惯用Jquery

页面常用Jquery
例一：循环获取指定Id下的子元素如：
<ul id="testul">
  <li>John</li>
  <li>Karl</li>
  <li>Brandon</li>
</ul>
$("#testul li").each(function(){
alert(this);
});
例二：更改Form下的属性值
<html:form styleId="workItemListForm" action="unifyWorkitemListAction" method="post">           
     <html:hidden property="pageIndex"/>
     <html:hidden property="pageCount"/>
     <html:hidden property="ascending"/>
     <html:hidden property="fieldName"/>           
</html:form>
更改pageIndex的值
$("#workItemListForm [name='pageIndex']").attr("value", "1");
或者$("#workItemListForm [name='pageIndex']").val("12");
如需修改action的值：$("#workItemListForm").attr("action","new Action URL");
例三：让鼠标经过表格的行时更改样式，移开时还原
<table id="tblworkItemList" class="content" border="1">
<thead>
             <tr>
                <th>测试测试测试</th>
<th>测试测试测试</th>
             </tr>
        </thead>               
        <tbody>
            <tr>
                <td>测试测试测试</td>
                <td>测试测试测试</td>                                         
            </tr>
            <tr>
             <td>测试测试测试</td>
             <td>测试测试测试</td>                                         
            </tr>
    <tr>
             <td>测试测试测试</td>
             <td>测试测试测试</td>                                         
            </tr>
         </tbody>
         <tfoot>
             <tr>
                 <td>测试测试测试</td>
                 <td>测试测试测试</td> 
             </tr>
         </tfoot>
</table>
jquery代码：
$("#tblworkItemList > tbody > tr").each(function(i) {
$(this).mouseover(function() {
$(this).addClass("hover");
});
$(this).mouseout(function() {
$(this).removeClass("hover");
});
});

例四：复选框的全选

<input type="checkbox" id="chkSelectAll"/>
<input type="checkbox" name="instanceIds" value="123" >
<input type="checkbox" name="instanceIds" value="456" >

jquery代码：
$("#chkSelectAll").bind("click", {selectId: "instanceIds"}, toggleSelect);


function toggleSelect(event) {
//alert(this.id + ":" + event.data.selectId);
var id = event.data.selectId;
if (id == null) return;
if (this.checked) {
$("input[name='" + id + "']").attr("checked", true);
} else {
$("input[name='" + id + "']").attr("checked", false);
}
}
例五：弹出页面
//g_dialogFeaturesForComment：定义弹出页的样式, vArguments是传入弹出页的值（可以是对象vArguments = new Object()，vArguments.type="test";）
var g_dialogFeaturesForComment = "dialogHeight: 350px; dialogWidth: 400px; center: yes; edge: raised; resizable: no; scroll: yes; status: no;";

retValue= showModalDialog(openurl, vArguments, g_dialogFeaturesForComment);

在弹出页获取传入参数方法为：var obj = window.dialogArguments;

设置弹出页关闭时的返回对象：window.returnValue = retValue; window.close();


Tomcat 乱码，修改URIEncoding：
<Connector URIEncoding="UTF-8" acceptCount="100" connectionTimeout="20000" debug="0" disableUploadTimeout="true" enableLookups="false" maxSpareThreads="75" maxThreads="150" minSpareThreads="25" port="8080" redirectPort="8443"/>



例六：Js 数组下标非固定循环
<script>
var arr=[];
arr["a"]=1;
arr["b"]="a";
for(var o in arr){
    document.write(arr[o]+"<br />");
}
</script>

例七：页面Map已知Key取value
<c:set var="key" value="${activityInstance.currentStep}"/>
value的值可以有循环过程中获取
<c:out value="${map[key]}" />

例八：db2 关闭会话 db2 force application (141,164)
141,164 为ID
db2 force application all 关闭所有会话