鸟食轩

#1楼    回复  引用  查看    

唉，前一段俺也被IE内存泄露的问题搞了一把，归根结底都是COM引用计数搞的鬼。

#2楼    回复  引用    

<script language="JavaScript">
var portletReq,portletReqUser;
var type;
function asynchGet(updateURL,typePara){
type = typePara;
if (typePara == "patient"){
if (window.XMLHttpRequest) {
portletReq = new XMLHttpRequest();
} else if (window.ActiveXObject) {
portletReq = new ActiveXObject("Microsoft.XMLHTTP");
}
portletReq.onreadystatechange = processReqChange;
if (!document.usageForm.spanID.options[0].selected)
updateURL = "${pageContext.request.contextPath}/run?__report=patients_changes_groupbyday.rptdesign";
updateURL = updateURL+"&startday="+startDayStr+"&endday="+enddateStr;


portletReq.open("GET", updateURL, true);
portletReq.send(null);


}
if (typePara == "user"){
if (window.XMLHttpRequest) {
portletReqUser = new XMLHttpRequest();
} else if (window.ActiveXObject) {
portletReqUser = new ActiveXObject("Microsoft.XMLHTTP");
}
portletReqUser.onreadystatechange = processReqChangeUser;
if (!document.usageForm.spanID.options[0].selected)
updateURL = "${pageContext.request.contextPath}/run?__report=user_changes_groupbyday.rptdesign";
updateURL = updateURL+"&startday="+startDayStr+"&endday="+enddateStr;
portletReqUser.open("GET", updateURL, true);
portletReqUser.send(null);
}

}
function processReqChangeUser(){
var divUser = document.getElementById("UserChangesperHour");
divUser.innerHTML="<b style='color:red;font-size:9pt;'>loading...<b>";

if (portletReqUser.readyState == 4) {
if (portletReqUser.status == 200) {
// process response
displayInvoiceUser();
}else {
divUser.innerHTML="There was a problem retrieving the XML data:" + portletReqUser.statusText;
}
}
}
// Generic AJAX function
// process the response when available
function processReqChange() {
var div = document.getElementById("PatientChangesperHour");
div.innerHTML="<b style='color:red;font-size:9pt;'>loading...<b>";

if (portletReq.readyState == 4) {
if (portletReq.status == 200) {
// process response
displayInvoice();
} else {
div.innerHTML="There was a problem retrieving the XML data:" + portletReq.statusText;
}


}
}

function getAJAXcontent(url,typePara) {
asynchGet(url,typePara);

}
function displayInvoiceUser(){
var divUser = document.getElementById("UserChangesperHour");
//div.innerHTML = "";
divUser.innerHTML = portletReqUser.responseText;
if (divUser.childNodes[0].childNodes[1] != null){
divUser.childNodes[0].childNodes[1].innerHTML="";
}
else{
divUser.innerHTML = "<b style='color:red;font-size:9pt;'>can't find record by that Criteria<b>";
}

delete portletReqUser['onreadystatechange'];
portletReqUser = null;
}
function displayInvoice() {
// substitute new invoice HTML content into "portletcontent" <div> tag
var div = document.getElementById("PatientChangesperHour");
//div.innerHTML = "";
div.innerHTML = portletReq.responseText;
var obj = portletReq.responseText;
if (div.childNodes[0].childNodes[1] != null){
div.childNodes[0].childNodes[1].innerHTML="";

}
else{
div.innerHTML = "<b style='color:red;font-size:9pt;'>can't find record by that Criteria<b>";
}

delete portletReq['onreadystatechange'];
portletReq = null;
}
function queryUser()
{
getAJAXcontent('${pageContext.request.contextPath}/run?__report=user_changes.rptdesign','user');
}
</script>
调用时就会产生，异步并发参数传递冲突问题，我于是设1000ms为间隔，能不能用你的方法改写那。我没看懂你写的方法。
<input type="button" onclick="getAJAXcontent('${pageContext.request.contextPath}/run?__report=patients_changes.rptdesign','patient');setTimeout('queryUser()',1000)" name="graph" value="Graph">

#3楼    回复  引用    

先谢谢了，如果你能恢复一下。

#4楼 [楼主]   回复  引用  查看    

@baoshaoming
"异步并发参数传递冲突问题"，能说一下上面的代码中，你发现了那个函数的那个参数出现了传递冲突吗？

#5楼    回复  引用    

其实在实际运用中,AJAX过于复杂,谁能解决好这个问题,就是谁对
WEB开发的一个很大的贡献,我在遇到这种问题时候,都是采用我自己的一个比较独特的方法.不是很聪明,但是很实用.

#6楼    回复  引用  查看    

这个本身是设计的问题.
如果你打算函数执行时参数是最后,那个,就应该把参数保存到可访问的位置(例如全局),而不是作为param出现.

#7楼    回复  引用    

楼主，能写段代码演示这个错误么？
我怎么试doTick，多次调用，都没有出现参数不正确

#8楼    回复  引用    

楼主的博客简直就是javascript的百科全书，令我爱不释手！希望能继续看到楼主的精彩文章！恩泽大众！