如何用javascript 获取Sharepoint 2013 List 的 item

[zwenli001]

如题 如何用javascript 获取Sharepoint 2013 List 的 item 谢谢

[霖雨]

<script type="text/javascript">
  　 function getlistitem()
　　{
 　  var mycontext=new SP.ClientContext();
 　  var mysite=mycontext.get_web();
  　 var query = new SP.CamlQuery();
　　query.set_viewXml("<View><Query></Query></View>");
 
  　 var mylist=mysite.get_lists().getByTitle('MyFirstLists');
   　myitem= mylist.getItems(query);
 
   　mycontext.load(myitem);
   　mycontext.executeQueryAsync(Function.createDelegate(this,this.getsuccessed),Function.createDelegate　　　　
 
　　(this,this.getfailed));
　　 }
　　 function getsuccessed()
　　 { 
　    var str="";
　　 var listsE=myitem.getEnumerator();
　　 while(listsE.moveNext())
 　　{
 　　 str+=listsE.get_current().get_item("Title")+"<br>";   
 　　}
　　 document.getElementById("lists").innerHTML=str;
 
 　　}
 　　function getfailed(sender,args)
　　 {
  　　alert("failed~!");
 　　}
　　</script>

[计算机器]

参考https://msdn.microsoft.com/en-us/library/office/hh185007(v=office.14).aspx

[zwenli001]

我在读取LIst 的“Title”字段时正常的 但为什么读取“Created By” 字段时会报错

listsE.get_current().get_item("Created By");

错误描述：The property or field has not been initialized. It has not been requested or the request has not been executed. It may need to be explicitly requested.

[计算机器]

引用 4 楼 zwenli001 的回复:

我在读取LIst 的“Title”字段时正常的 但为什么读取“Created By” 字段时会报错

listsE.get_current().get_item("Created By");

错误描述：The property or field has not been initialized. It has not been requested or the request has not been executed. It may need to be explicitly requested.

参考https://msdn.microsoft.com/en-us/library/office/hh185007(v=office.14).aspx中的include的用法。 “mycontext.load(myitem, 'include(Id, Title, CreatedBy)');”

[Justin-Liu]

是的，需要先加载后再读取，要不读取不到

[qq_20249639]

如果要获取第二层文件夹该怎么获取呢？