struts2 Action返回的json对象无法绑定到Ext grid中

Question

大家好：

后台返回的json对象格式上好像出了点问题，参考成功的例子，json对象应该是以下格式：
{
total: 2,
root : [
{ id: 1, firstname: 'Bill', occupation: 'Gardener' }, // a row object
{ id: 2, firstname: 'Ben' , occupation: 'Horticulturalist' } // another row object
]
}

可是我现在的json对象只有root 里面这部分，如下：
{
{ id: 1, firstname: 'Bill', occupation: 'Gardener' }, // a row object
{ id: 2, firstname: 'Ben' , occupation: 'Horticulturalist' } // another row object
}

我从Ext的js文件，struts2的xml文件，后台action，都看了一遍也不知道是什么造成的？
Ext相关部分：
[code="javaScript"]
ds: new Ext.data.Store({
url : 'getCustomersList.action',
reader : new Ext.data.JsonReader({totalProperty : "total", root : "root"},
[{name : "customerCode", type : "string"},
{name : "customerName", type : "string"},
{name : "conDist", type : "boolean"},
{name : "supDist", type : "boolean"},
{name : "delDist", type : "boolean"},
{name : "consigneeDist", type : "boolean"},
{name : "dcCompDist", type : "boolean"},
{name : "shippingCompDist", type : "boolean"},
{name : "customerRank", type : "string"},
{name : "creditRank", type : "string"},
{name : "availDist", type : "boolean"}])
})
[/code]
struts2 xml相关部分
[code="xml"]



customersInfoList
true



[/code]

我的lib是：struts2-json-plugin-2.1.8.1.jar和json-lib-2.1.jar

Answer 1

在后台写成root:[]或前台reader里边root:""