$.ajax ({url:url + "Option=dropdown"),
Type: "Post",
Data: "znstr=" + str + "&znclass=" + Zclass + "",
DataType: "HTML",
Error:function (XMLHttpRequest) {},
Success:function (data) {
if (data!= "false")
{
if (data.tostring (). length > 0)
{
Cleardrop (Znclass);
}
var vars = new Array ();
VARs = Data.tostring (). Split (', ');
for (var i =0;i< (vars.length); i=i+2)
{
Switch (znclass)
{
Case 2:
$ ("#citytwo"). Append ("<option value= '" +vars[i+1]+ "' >" +vars[i]+ "</option>");
Break
Case 3:
$ ("#citythree"). Append ("<option value= '" +vars[i+1]+ "' >" +vars[i]+ "</option>");
Break
Case 4:
$ ("#cityfour"). Append ("<option value= '" +vars[i+1]+ "' >" +vars[i]+ "</option>");
Break
}
}
%>
Let's look at a complete example
<%@ page contenttype = "text/html; CHARSET=GBK "import=" JAVA.UTIL.*,COM.WEHAVE.HYERP.PROCUREMENT.DOMAIN.CGSQD "%>
<%@ taglib uri= "struts-html" prefix= "html"%>
<%@ taglib uri= "struts-logic" prefix= "logic"%>
<%@ taglib uri= "Struts-bean" prefix= "Bean"%>
<html>
<head>
<title> </title>
<link rel = "stylesheet" type = "Text/css tutorial" href = ". /css/olstyle.css ">
<script type= "text/web Effects" >
var req;
Window.onload=function () {
}
function Change_select ()
{
var Zhi=document.getelementbyid (' M_GYKFWZLBB_LBBM '). Value;
var url= "sqdselect.go?method=getskill&id=" +zhi;
if (zhi== "0") {
Alert ("Please select the information you want to view");
Return
}else{
if (window.xmlhttprequest)
{
Req=new XMLHttpRequest ();
}else if (window.activexobject)
{
Req=new ActiveXObject ("Microsoft.XMLHTTP");
}
if (req)
{
Req.open ("Get", url,true);
Req.onreadystatechange=callback;
Req.send (NULL);
}
}
}
function Change_select2 ()
{
var Zhi=document.getelementbyid (' M_lbbm_se '). Value;
Alert (zhi.substring (0,2));
if (zhi== "0") {
Alert ("Please select the information you want to view");
Return
}
if (zhi.substring (0,2) = = "WY") {
var url= "sqdselect.go?method=getskill2&id=" +zhi;
if (window.xmlhttprequest)
{
Req=new XMLHttpRequest ();
}else if (window.activexobject)
{
Req=new ActiveXObject ("Microsoft.XMLHTTP");
}
if (req)
{
Req.open ("Get", url,true);
Req.onreadystatechange=callback2;
Req.send (NULL);
}
}else{
Parent.topfram.location = "sqdselectall.go?method=getlistall&id=" +zhi;
}
}
function Change_select3 ()
{
var Zhi=document.getelementbyid (' m_lbbm_th '). Value;
Alert (zhi.substring (0,2));
if (zhi== "0") {
Alert ("Please select the information you want to view");
Return
}else{
Parent.topfram.location = "sqdselectall.go?method=getlistall2&id=" +zhi;
}
}
function callback ()
{
if (req.readystate = 4)
{
if (Req.status = 200)
{
Parsemessage ();
}else{
Alert ("Not able to retrieve description" +req.statustext);
}
}
}
function Callback2 ()
{
if (req.readystate = 4)
{
if (Req.status = 200)
{
Parsemessage2 ();
}else{
Alert ("Not able to retrieve description" +req.statustext);
}
}
}
function Parsemessage ()
{
var xmldoc=req.responsexml.documentelement;
var xsel=xmldoc.getelementsbytagname (' select ');
var Select_root=document.getelementbyid (' M_lbbm_se ');
select_root.options.length=0;
for (Var i=0;i<xsel.length;i++)
{
var Xvalue=xsel[i].childnodes[0].firstchild.nodevalue;
var Xtext=xsel[i].childnodes[1].firstchild.nodevalue;
var option=new option (Xtext,xvalue);
try{
Select_root.add (option);
}catch (e) {
}
}
}
function Parsemessage2 ()
{
var xmldoc=req.responsexml.documentelement;
var xsel=xmldoc.getelementsbytagname (' select ');
var Select_root=document.getelementbyid (' m_lbbm_th ');
select_root.options.length=0;
for (Var i=0;i<xsel.length;i++)
{
var Xvalue=xsel[i].childnodes[0].firstchild.nodevalue;
var Xtext=xsel[i].childnodes[1].firstchild.nodevalue;
var option=new option (Xtext,xvalue);
try{
Select_root.add (option);
}catch (e) {
}
}
}
</script>
</head><body bgcolor = "#c8d0d4" >
<html:form action= "/cgsqdnewaction.go" >
<table class = "Cbtoolbar" id = "Idtoolbar" cellpadding = ' 0 ' cellspacing = ' 0 ' >
<tr align = "left" valign = "Top" >
<TD nowrap>&nbsp; Substance Category:&nbsp;&nbsp;
<html:select property= "M_GYKFWZLBB_LBBM" onchange= "Change_select ()" >
<html:option value= "0" > Please select </html:option>
<html:options collection= "lbflist" property= "M_GYKFWZLBB_LBBM" labelproperty= "M_GYKFWZLBB_LBMC"/>
</html:select> &nbsp;
<html:select property= "M_lbbm_se" styleid= "M_lbbm_se" onchange= "Change_select2 ()" >
<html:option value= "0" >&nbsp;&nbsp;&nbsp;</html:option>
</html:select>
<html:select property= "m_lbbm_th" styleid= "m_lbbm_th" onchange= "Change_select3 ()" >
<html:option value= "0" >&nbsp;&nbsp;&nbsp;</html:option>
</html:select>
</td>
</tr>
</table>
</html:form>
</body>
</html>Action
Public Actionforward DOSELECTWZLB (
Actionmapping Mapping,
Actionform form,
HTTPS Tutorial Ervletrequest req,
HttpServletResponse Res) {
HttpSession session = Req.getsession ();
Usersession usersession =
(usersession) Session.getattribute ("Usersession");
Permission.setuserid (Usersession.getuserid ());
Permission.setusername (Usersession.getusername ());
Permission.setmodulename ("M_cgsqd");
Permission.setactionstr ("' M_select '");
if (permissionservice.checkuserpermission (permission)) {
int updatesign=0;
try{
CGSQDSERVICE.UPDATECGSQWZHZB_SQSL ();
Updatesign=1;
}catch (Exception e) {
E.printstacktrace ();
updatesign=0;
}
if (updatesign==1) {
List lbflist=cgsqdservice.treelistwzlb2 ();
Req.setattribute ("Lbflist", lbflist);
Return Mapping.findforward ("Tools");
}else{
return null;
}
}else{
Return Mapping.findforward ("failure");
}
}
/** *//**
*
* Query Material coding Category List operation (level two)
* */
Public Actionforward DOSELECTWZLB1 (
Actionmapping Mapping,
Actionform form,
HttpServletRequest req,
HttpServletResponse Res) {
HttpSession session = Req.getsession ();
Usersession usersession =
(usersession) Session.getattribute ("Usersession");
Permission.setuserid (Usersession.getuserid ());
Permission.setusername (Usersession.getusername ());
Permission.setmodulename ("M_cgsqd");
Permission.setactionstr ("' M_select '");
if (permissionservice.checkuserpermission (permission)) {
int updatesign=0;
try{
CGSQDSERVICE.UPDATECGSQWZHZB_SQSL ();
Updatesign=1;
}catch (Exception e) {
E.printstacktrace ();
updatesign=0;
}
if (updatesign==1) {
List lbflist=cgsqdservice.treelistwzlb2 ();
Req.setattribute ("Lbflist", lbflist);
Return Mapping.findforward ("TOOLS1");
}else{
return null;
}
}else{
Return Mapping.findforward ("failure");
}
}
/** *//**
*
* Query Material coding Category List operation (level three)
* */
Public Actionforward Getskill (
Actionmapping Mapping,
Actionform form,
HttpServletRequest req,
HttpServletResponse Res) {
HttpSession session = Req.getsession ();
Usersession usersession =
(usersession) Session.getattribute ("Usersession");
Permission.setuserid (Usersession.getuserid ());
Permission.setusername (Usersession.getusername ());
Permission.setmodulename ("M_cgsqd");
Permission.setactionstr ("' M_select '");
if (permissionservice.checkuserpermission (permission)) {
String Id=req.getparameter ("id");
Res.setcontenttype ("TEXT/XML;CHARSET=GBK");
Res.setheader ("Cache-control", "No-cache");
String xml_start= "<?xml version=" 1.0 "encoding=" GBK "?>";
xml_start+= "<selects>";
String xml_end= "</selects>";
String xml= "<select><value>0</value><text> Please select </text></select>";
String M_lbbm_se= "";
String M_lbmc_se= "";
List lbflist=null;
if (Id.equals ("WY")) {
Lbflist=cgsqdservice.treelistwzlb3_2 (ID);
}else{
Lbflist=cgsqdservice.treelistwzlb3_1 (ID);
}
Iterator It=lbflist.iterator ();
while (It.hasnext ()) {
CGSQD cgsqd= (CGSQD) it.next ();
M_LBBM_SE=CGSQD.GETM_GYKFWZLBB_LBBM ();
M_LBMC_SE=CGSQD.GETM_GYKFWZLBB_LBMC ();
XML + + <select><value> "+m_lbbm_se+" </value><text> "+m_lbmc_se+" </text></select > ";
}
String Last_xml=xml_start+xml+xml_end;
Logger.debug ("XML is:" +last_xml);
try {
Res.getwriter (). write (Last_xml);
catch (IOException e) {
E.printstacktrace ();
}
return null;
}else{
return null;
}
}
Start building with 50+ products and up to 12 months usage for Elastic Compute Service
1 on 1 presale consultation
24/7 Technical Support 6 Free Tickets per Quarter Faster Response
Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.
A comprehensive suite of global cloud computing services to power your business
Payment Methods We Support
