Javascript DOJO-使用XPath查询XmlStore

我有一个dojox.data.XmlStore，我想使用XPath查询xml存储。有没有办法做到这一点？ 下面的示例表示对属性的查询，但我想使用item元素提供的XPath查询

var store = new dojox.data.XmlStore({url: "books.xml", rootItem: "book"});
var gotBooks = function(items, request){
  for(var i = 0; i < items.length; i++){
    var item = items[i];
    console.log("Located book: " + store.getValue(item, "title");
  }
}
var request = store.fetch({query: {isbn:"A9B57*"}, onComplete: gotBooks});

store.fetch({
          //for the query element the item.query field can be used in this way
           query: item.query, 
           onComplete: onComplete,
           onError: onError
});

如果使用XmlItem中的“查询”字段，则不会提供任何结果

var request=store.fetch（{query:item.q，onComplete:gotBooks}）
 在查询中尝试使用regExp而不是“*”，如：

var request = store.fetch({query: {isbn:new RegExp('A9B57','i')}, onComplete: gotBooks});

store.fetch({
          //for the query element the item.query field can be used in this way
           query: item.query, 
           onComplete: onComplete,
           onError: onError
});

如果需要查询全部，只需使用：

var request = store.fetch({query: {}, onComplete: gotBooks});

store.fetch({
          //for the query element the item.query field can be used in this way
           query: item.query, 
           onComplete: onComplete,
           onError: onError
});

要从XmlStore提取数据，我们可以使用XmlItem提供的字段查询，如下面的示例所示

store.fetch({
          //for the query element the item.query field can be used in this way
           query: item.query, 
           onComplete: onComplete,
           onError: onError
});

答案在dijit/tree/ForestStoreModel#getChildren（）中的Dojo源中找到

store.fetch({
          //for the query element the item.query field can be used in this way
           query: item.query, 
           onComplete: onComplete,
           onError: onError
});