mongodb操作多重内嵌文档.
删除最里面的某个文档,怎么操作
用spring 的 mongoTemplate 操作
我想删除食物类里面的第一个文档,应该怎么操作
下面是数据格式
{
"_id" : "202cb962ac59075b964b07152d234b70",
"_class" : "com.jimaisong.jmsapp.mongo.model.ShopKeeperMain",
"shopid" : "202cb962ac59075b964b07152d234b70",
"categorys" : [
{
"_id" : "01",
"cid" : "01",
"cname" : "食物类",
"productid" : [
{
"pid" : "202cb962ac59075b964b07152d234b70",
"cid" : "01",
"date" : "2015-01-15 13-47-40"
}
],
"createdate" : ISODate("2015-01-15T05:47:40.437Z")
},
{
"_id" : "02",
"cid" : "02",
"cname" : "水果类",
"createdate" : ISODate("2015-01-15T05:47:40.437Z")
},
{
"_id" : "03",
"cid" : "03",
"cname" : "烟酒",
"createdate" : ISODate("2015-01-15T05:47:40.437Z")
},
{
"_id" : "04",
"cid" : "04",
"cname" : "饮料类",
"createdate" : ISODate("2015-01-15T05:47:58.813Z")
},
{
"_id" : null,
"cid" : " 食品、 饮料、 酒",
"productid" : [
{
"pid" : "82258f90af2f75aff141bcbef9f345f2",
"cid" : " 食品、 饮料、 酒",
"date" : "2015-01-15 14-36-35"
}
],
"createdate" : ISODate("2015-01-15T06:36:35.272Z")
}
],
"createdate" : ISODate("2015-01-15T05:47:40.433Z")
}