JQGRID读取json数据的格式要求

* jqGrid默认期望返回的json对象格式要求如下：
* {"page":"1","total":"2","records":"13",
* "rows":[
* {id:"1",cell:["1","polaris","男","polaris@gmail.com","772618379","18329382732","1985-10-2"]},
* {id:"2",cell:["2","张三","女","zhangsan@163.com","272618382","15329382732","1986-10-12"]},
* {id:"3",cell:["3","王五","女","wangwu@yahoo.com","172635372","13329389832","1987-12-21"]},
* {id:"4",cell:["4","赵六","男","zhaoliu@sina.com","372618332","18929343731","1988-09-22"]}
* ]
* }
* 当然，在js中，可以通过jqGrid的jsonReader属性来修改默认格式
* 因为默认的格式，rows的数据要求顺序不能变，且每个字段都得有值（空也得有"")。因而，
* 在jsonReader中定义repeatitems : false。这样，rows就变成了：
* "rows":[
* {id:"1",userName:"polaris",gender:" 男",email:"polaris@gmail.com",QQ:"772618379",mobilePhone:"18329382732",birthday:"1985-10-2"]},
* {id:"2",userName:"徐新华",gender:" 男",email:"xh.xu@163.com",QQ:"272618382",mobilePhone:"15329382732",birthday:"1986-10-12"]},
* {id:"3",userName:"王五",gender:" 女",email:"wangwu@yahoo.com",QQ:"172635372",mobilePhone:"13329389832",birthday:"1987-12-21"]},
* {id:"4",userName:"赵六",gender:" 女",email:"zhaoliu@sina.com",QQ:"372618332",mobilePhone:"18929343731",birthday:"1988-09-22"]}
* ]
*
*/