golang 操作mongodb 示例

package main
import (
    "fmt"
    "launchpad.net/mgo"
    "launchpad.net/mgo/bson"
)
type Mail struct {
    Id bson.ObjectId "_id"
    Name string
    Email string
}
func main() {
    // 连接数据库
    session, err := mgo.Dial("127.0.0.1")
    if err != nil {
        panic(err)
    }
    defer session.Close()

// 获取数据库,获取集合
c := session.DB("test").C("mail")

// 存储数据
m1 := Mail{bson.NewObjectId(), "user1", "user1@dotcoo.com"}
m2 := Mail{bson.NewObjectId(), "user1", "user2@dotcoo.com"}
m3 := Mail{bson.NewObjectId(), "user3", "user3@dotcoo.com"}
m4 := Mail{bson.NewObjectId(), "user3", "user4@dotcoo.com"}
err = c.Insert(&m1, &m2, &m3, &m4)
if err != nil {
    panic(err)
}

// 读取数据
ms := []Mail{}
err = c.Find(&bson.M{"name":"user3"}).All(&ms)
if err != nil {
    panic(err)
}

// 显示数据
for i, m := range ms {
    fmt.Printf("%s, %d, %s\n", m.Id.Hex(), i, m.Email)
}
 
}</pre>