Netbeans下实现ajax用xml传值

 

1.                          var xmlHttp;
2.                          function creatXMLHttpRequest() { 
3.                             if (window.ActiveXObject) { 
4.                             xmlHttp = new ActiveXObject("Microsoft.XMLHTTP"); 
5.                             } 
6.                             else if (window.XMLHttpRequest) { 
7.                                  xmlHttp = new XMLHttpRequest(); 
8.                             } 
9.                             else { 
10.                                 return; 
11.                               } 
12.                             }
13.                           //提交部门下拉框选择内容
14.                          function select_change(){
15.                               var depart = document.getElementById("form1:dropDown15").value;
16.                               if(depart != ""){
17.                                      creatXMLHttpRequest();
18.                                      var url = "/HRMS/faces/employee/Page1.jsp?depart=" + depart;
19.                                      xmlHttp.open("GET",url,true);
20.                                      xmlHttp.onreadystatechange = showMembers;
21.                                      xmlHttp.setRequestHeader("If-Modified-Since","0");
22.                                      xmlHttp.send();
23.                               }else{
24.                                   ClearOption(document.getElementById("form1:dropDown17"));
25.                               }
26.                          }
27.                          //根据部门返回的职工列表动态加载数据
28.                          function showMembers(){
29.                               if(xmlHttp.readystate == 4){
30.                                      if(xmlHttp.status == 200){
31.                                         var tmpTeam = xmlHttp.responseXML;
32.                                         ClearOption(document.getElementById("form1:dropDown17"));
33.                                         var arrTmp = tmpTeam.getElementsByTagName("members");
34.                                         for(var i = 0;i <arrTmp.length;i++){
35.                                             var oOption = document.createElement("option"); 
36.                                             document.getElementById("form1:dropDown17").options.add(oOption);
37.                                                 oOption.innerText = arrTmp[i].childNodes[1].firstChild.data;
38.                                                 oOption.value = arrTmp[i].childNodes[0].firstChild.data;
39.                                         }
40.                                      }else{
41.                                         //alert("您请求的页面有异常");
42.                                      }
43.                               }else{
44.                                   //alert("信息没有返回请等等待");
45.                               }
46.                          }

后台代码：

1. BaseHibernateDAO teamdao = new BaseHibernateDAO();
2.         try{
3.             String teamTmp = "";
4.             String teamTmp1 = "";
5.             HttpServletRequest request = (HttpServletRequest)this.getFacesContext().getExternalContext().getRequest();
6.             String depart = request.getParameter("depart");
7.             String strcity = request.getParameter("city");
8.             if(depart != null){
9.                     HttpServletResponse res =  (HttpServletResponse)this.getFacesContext().getExternalContext().getResponse();
10.                     DepartMentServer dms = new DepartMentServer();
11.                     DbDepartMent departDB  = new DbDepartMent();
12.                     String teamsql = "select * from team where departcode='"+ depart +"'";    
13.                     SQLQuery teamquery = teamdao.getSession().createSQLQuery(teamsql);
14.                     teamquery.addEntity(Team.class);
15.                     ArrayList<Team> idlist = (ArrayList<Team>) teamquery.list();
16.                         for(int i=0;i<idlist.size();i++){
17.                             if(teamTmp == ""){
18.                                 teamTmp = "<?xml version=/"1.0/" encoding=/"utf-8/"?>/r/n" + "<member>" + "<members>" + 
19.                                           "<id>" + String.valueOf(idlist.get(i).getId()) + "</id>" + 
20.                                            "<name>" + idlist.get(i).getTeam() + "</name>";
21.                             }
22.                             else{
23.                                  if(String.valueOf(idlist.get(i).getId()) != String.valueOf(idlist.get(i-1).getId())){
24.                                     teamTmp += "</members>" +  "<members>" + 
25.                                                "<id>" + String.valueOf(idlist.get(i).getId()) + "</id>" + 
26.                                                "<name>" + idlist.get(i).getTeam() + "</name>";
27.                                  }else{
28.                                      teamTmp += "<name>" + idlist.get(i).getTeam() + "</name>" ;
29.                                  }
30.                             }
31.                         }
32.                         if(idlist.size() > 0)  teamTmp += "</members>";
33.                         teamTmp += "</member>";
34.                         res.setContentType("text/xml;charset=UTF-8"); 
35.                         res.getOutputStream().print(teamTmp);
36.                         res.getOutputStream().flush();
37.                         res.notify();
38.                         res.getOutputStream().close();
39.               }