一、保存(在前端用js创建xml格式)
function exportToXml(jsonStr){
var obj = eval('('+ jsonStr + ')');
var xmlDoc = new ActiveXObject("Microsoft.XMLDOM");
//创建两条处理指令
var newPI=xmlDoc.createProcessingInstruction("xml","version=\"1.0\" encoding=\"utf-8\" standalone=\"yes\"");
xmlDoc.appendChild(newPI);
//创建根元素
var documentElement=xmlDoc.createElement("root");
xmlDoc.appendChild(documentElement);
//创建CDATA
//var newCD=xmlDoc.createCDATASection("This is a CDATASection node");
//xmlDoc.documentElement.appendChild(newCD);
var row=xmlDoc.createElement("row");
var task=xmlDoc.createElement("Task");
task.setAttribute("TaskID",obj.AJGUID);
var aj_dj_guid=xmlDoc.createElement("AJ_DJ_GUID");
aj_dj_guid.setAttribute("name", "案件编号");
var taskname=xmlDoc.createElement("TaskName");
taskname.setAttribute("name", "任务名称");
var aj_mc=xmlDoc.createElement("AJ_MC");
aj_mc.setAttribute("name", "案件名称");
var aj_dd=xmlDoc.createElement("AJ_DD");
aj_dd.setAttribute("name", "案件地点");
var sfhcwc=xmlDoc.createElement("SFHCWC");
sfhcwc.setAttribute("name", "是否核查完成");
var hcsj=xmlDoc.createElement("HCSJ");
hcsj.setAttribute("name", "核查时间");
var refpointx=xmlDoc.createElement("RefPointX");
refpointx.setAttribute("name", "巡查地点X坐标");
var refpointy=xmlDoc.createElement("RefPointY");
refpointy.setAttribute("name", "巡查地点Y坐标");
var taskdesc=xmlDoc.createElement("TaskDesc");
taskdesc.setAttribute("name", "任务说明");
//添加子元素
task.appendChild(aj_dj_guid);
task.appendChild(taskname);
task.appendChild(aj_mc);
task.appendChild(aj_dd);
task.appendChild(sfhcwc);
task.appendChild(hcsj);
task.appendChild(refpointx);
task.appendChild(refpointy);
task.appendChild(taskdesc);
//创建text节点，作为元素的内容
var aj_dj_guidtext=xmlDoc.createTextNode('');
var tasknametext=xmlDoc.createTextNode('');
var aj_mctext=xmlDoc.createTextNode('');
var aj_ddtext=xmlDoc.createTextNode('');
var sfhcwctext=xmlDoc.createTextNode('');
var hcsjtext=xmlDoc.createTextNode('');
var refpointxtext=xmlDoc.createTextNode('');
var refpointytext=xmlDoc.createTextNode('');
var taskdesctext=xmlDoc.createTextNode('');
//为元素赋值
aj_dj_guid.appendChild(aj_dj_guidtext);
taskname.appendChild(tasknametext);
aj_mc.appendChild(aj_mctext);
aj_dd.appendChild(aj_ddtext);
sfhcwc.appendChild(sfhcwctext);
hcsj.appendChild(hcsjtext);
refpointx.appendChild(refpointxtext);
refpointy.appendChild(refpointytext);
taskdesc.appendChild(taskdesctext);
row.appendChild(task);//添加到row元素中
var project=xmlDoc.createElement("Project");
var aj_dj_guid_project=xmlDoc.createElement("AJ_DJ_GUID");
var xzqdm=xmlDoc.createElement("XZQDM");
var ajmc=xmlDoc.createElement("AJMC");
var bz=xmlDoc.createElement("BZ");
//添加子元素
project.appendChild(aj_dj_guid_project);
project.appendChild(xzqdm);
project.appendChild(ajmc);
project.appendChild(bz);
//创建text节点，作为元素的内容
var aj_dj_guid_projecttext=xmlDoc.createTextNode(obj.AJGUID);
var xzqdmtext=xmlDoc.createTextNode('');
var ajmctext=xmlDoc.createTextNode(obj.DKMC);
var bztext=xmlDoc.createTextNode('');
//为元素赋值
aj_dj_guid_project.appendChild(aj_dj_guid_projecttext);
xzqdm.appendChild(xzqdmtext);
ajmc.appendChild(ajmctext);
bz.appendChild(bztext);
var ajdks=xmlDoc.createElement("AJDKS");
ajdks.setAttribute("count", "1");
var ajdk=xmlDoc.createElement("AJDK");
var attribute=xmlDoc.createElement("Attribute");
var dkbh=xmlDoc.createElement("DKBH");
var dkmc=xmlDoc.createElement("DKMC");
var tdyt=xmlDoc.createElement("TDYT");
var dkmj=xmlDoc.createElement("DKMJ");
//添加子元素
attribute.appendChild(dkbh);
attribute.appendChild(dkmc);
attribute.appendChild(tdyt);
attribute.appendChild(dkmj);
//创建text节点，作为元素的内容
var dkbhtext=xmlDoc.createTextNode('');
var dkmctext=xmlDoc.createTextNode(obj.DKMC);
var tdyttext=xmlDoc.createTextNode('');
var dkmjtext=xmlDoc.createTextNode('');
//为元素赋值
dkbh.appendChild(dkbhtext);
dkmc.appendChild(dkmctext);
tdyt.appendChild(tdyttext);
dkmj.appendChild(dkmjtext);
ajdk.appendChild(attribute);//添加到ajdk元素中
var shape=xmlDoc.createElement("Shape");
for(i=0;i<obj.PointNumber;i++){
var point=xmlDoc.createElement("Point");
point.setAttribute("NO", ""+(i+1)+"");
point.setAttribute("X", ""+obj.SHAPE[i].X+"");
point.setAttribute("Y", ""+obj.SHAPE[i].Y+"");
//添加子元素
shape.appendChild(point);
}
ajdk.appendChild(shape);//添加到ajdk元素中
var appendix=xmlDoc.createElement("Appendix");
ajdk.appendChild(appendix);//添加到ajdk元素中
var appendixtext=xmlDoc.createTextNode('')
appendix.appendChild(appendixtext);
ajdks.appendChild(ajdk);//添加到ajdks元素中
project.appendChild(ajdks);//添加到project元素中
row.appendChild(project);//添加到row元素中
xmlDoc.documentElement.appendChild(row);
//alert(xmlDoc.xml);
xmlDoc.save("D:\\"+obj.DKMC+".xml");
alert("保存到【D:\\"+obj.DKMC+".xml】成功！");
}
二、保存（在后台组成xml格式字符串传到前端）
1、后台flex代码
private function expertCMJFYWXML():void{
var ajmc:String = this.ajmctxt.text;
if(ajmc == "请先填写案件名称"){
ajmc = "临时案件";
}
var pointNunber:int = 0;
var points:Array = null;
var pnt:MapPoint = null;
var guid:String = UIDUtil.createUID();
var resultXml = "<?xml version='1.0' encoding='utf-8' standalone='yes'?><root><row>" +
"<Task TaskID='"+guid+"'><AJ_DJ_GUID name='案件编号'></AJ_DJ_GUID><TaskName name='任务名称'></TaskName>" +
"<AJ_MC name='案件名称'></AJ_MC><AJ_DD name='案件地点'></AJ_DD><SFHCWC name='是否核查完成'></SFHCWC><HCSJ name='核查时间'></HCSJ>" +
"<RefPointX name='巡查地点X坐标'></RefPointX><RefPointY name='巡查地点Y坐标'></RefPointY><TaskDesc name='任务说明'>" +
"</TaskDesc></Task><Project><AJ_DJ_GUID>"+guid+"</AJ_DJ_GUID><XZQDM></XZQDM><AJMC>"+ajmc+"</AJMC><BZ></BZ>" +
"<AJDKS count='1'><AJDK><Attribute><DKBH></DKBH><DKMC>"+ajmc+"</DKMC><TDYT></TDYT><DKMJ></DKMJ></Attribute><Shape>";
if(this._arrPoints != null && _arrPoints.length>0){
for(var i:int = 0; i<_arrPoints.length;i++){
points = _arrPoints[i];
if(points!=null && points.length>0){
for (var j:int=0; j<points.length-1; j++){
pointNunber = j+1;
pnt = MapPoint(points[j]);
resultXml += "<Point NO='"+pointNunber+"' X='"+pnt.y.toFixed(4)+"' Y='"+pnt.x.toFixed(4)+"'/>";
}
}
}
}
resultXml +="</Shape><Appendix></Appendix></AJDK></AJDKS></Project></row></root>";
if(pointNunber >= 3){//是面状图形
callJsToExportXML(resultXml);
}
}
public static function callJsToExportXML(rsXml:String):void {
var f:String = "exportToXml";
var rs:String = ExternalInterface.call(f,rsXml);
if (rs == "fail"){
// promptMessage("导出Excel失败！",this);
}
}
2.1、前端代码（直接保存到本地）
function exportToXml(resultXml){
var xmlDoc = new ActiveXObject("Microsoft.XMLDOM");
xmlDoc.loadXML(resultXml);
var ajmc = xmlDoc.getElementsByTagName("AJMC")[0].childNodes[0].text;
xmlDoc.save("D:\\"+ajmc+".xml");
alert("保存到【D:\\"+ajmc+".xml】成功！");
}
2.2弹窗选择保存路径
function exportToXml(resultXml){
try {
var Message = "\u8bf7\u9009\u62e9\u6587\u4ef6\u5939"; //选择框提示信息
var Shell = new ActiveXObject("Shell.Application");
var Folder = Shell.BrowseForFolder(0, Message, 64, 17); //起始目录为：我的电脑
//var Folder = Shell.BrowseForFolder(0, Message, 0); //起始目录为：桌面
if (Folder != null) {
Folder = Folder.items(); // 返回 FolderItems 对象
Folder = Folder.item(); // 返回 Folderitem 对象
Folder = Folder.Path; // 返回路径
if (Folder.charAt(Folder.length - 1) != "\\") {
Folder = Folder + "\\";
}
if(Folder != "" && Folder != "undefined"){
var xmlDoc = new ActiveXObject("Microsoft.XMLDOM");
xmlDoc.loadXML(resultXml);
var ajmc = xmlDoc.getElementsByTagName("AJMC")[0].childNodes[0].text;
var filepath = Folder+ajmc+".xml";
var fso=new ActiveXObject("Scripting.FileSystemObject");
if(fso.FileExists(filepath)){
if(confirm('文件已存在，要替换吗？')){//选择是
xmlDoc.save(filepath);
}
}else{
xmlDoc.save(filepath);
}
}
}
}
catch (e) {
alert(e.message);
}
}
三、读取
function importXmlCoord(filePath){
try{
if(window.ActiveXObject) {
var xmlDoc=new ActiveXObject("Microsoft.XMLDOM");
xmlDoc.async="false"
xmlDoc.load(filePath);
var points = xmlDoc.documentElement.getElementsByTagName("Point");
var coordStr = "1,"+points.length+",";//只有一个圈（不含多圈地）
for(i=0;i<points.length;i++){
var no=points[i].getAttribute("NO");
var x=points[i].getAttribute("X");
var y=points[i].getAttribute("Y");
var tempI = y.indexOf(".");
var tempY = "";
if (tempI > 0){
tempY = y.substring(0,tempI); //y坐标整数位
}else{
tempY = yCoords;
}
if(isDegreeZone == "0"){
if (tempY.length == 8){ //y坐标整数位为8，则去掉带号2位
tempY = yCoords.substring(2,y.length);
}else{
tempY = y;
}
}else{
tempY = y;
}
coordStr += no+","+x+","+y+",";
}
coordStr += "0,0,0,1,";
return coordStr;
}
}catch(e){
alert("导入XML格式坐标失败，请检查格式是否正确。");
}
}