js转换对象为xml

var XmlHelper=function(){ var _arrayTypes={} var _self=this; /* *转换对象为xml *@obj 目标对象 *@rootname 节点名称 *@arraytypes 配置数组字段子元素的节点名称 */ this.parseToXML=function(obj,rootname,arraytypes){ if(arraytypes){  _arrayTypes=arraytypes; } var xml=""; if(typeof obj!=="undefined"){  if(Array.isArray(obj)){  xml+=parseArrayToXML(obj,rootname);  }else if(typeof obj==="object"){  xml+=parseObjectToXML(obj,rootname);  }else{  xml+=parseGeneralTypeToXML(obj,rootname);  } } return xml; } var parseObjectToXML=function(obj,rootname){ if(typeof rootname==="undefined"||!isNaN(Number(rootname))){  rootname="Object"; } var xml="<"+rootname+">"; if(obj){  for(var field in obj){  var value=obj[field];  if(typeof value!=="undefined"){   if(Array.isArray(value)){   xml+=parseArrayToXML(value,field);   }else if(typeof value==="object"){   xml+=_self.parseToXML(value,field);   }else{   xml+=parseGeneralTypeToXML(value,field);   }  }  } } xml+="</"+rootname+">"; return xml; } var parseArrayToXML=function(array,rootname){ if(typeof rootname==="undefined"||!isNaN(Number(rootname))){  rootname="Array"; } var xml="<"+rootname+">"; if(array){  var itemrootname=_arrayTypes[rootname];  array.forEach(function(item){  xml+=_self.parseToXML(item,itemrootname);  }); } xml+="</"+rootname+">"; return xml; } var parseGeneralTypeToXML=function(value,rootname){ if(typeof rootname==="undefined"||!isNaN(Number(rootname))){  rootname=typeof value; } var xml="<"+rootname+">"+value+"</"+rootname+">"; return xml; }}//===========测试==========var xmlhelper=new XmlHelper();//示例1var testobj={ field1:"1", field2:true, field3:[{a:1},{a:2}] }console.log(xmlhelper.parseToXML(testobj,"testobj",{field3:"ArrayItem"}));//输出：<testobj><field1>1</field1><field2>true</field2><field3><ArrayItem><a>1</a></ArrayItem><ArrayItem><a>2</a></ArrayItem></field3></testobj>console.log("================================================");//示例2var testobj2=[1,2,3];console.log(xmlhelper.parseToXML(testobj2,"testobj2"));//输出:<testobj2><number>1</number><number>2</number><number>3</number></testobj2>