golang對mongodb的基本操作

package main import ( "fmt" "gopkg.in/mgo.v2" "gopkg.in/mgo.v2/bson" "log" ) type Student struct { //Id_ bson.ObjectId `bson:"_id"` Name string `bson:"name"` Phone string `bson:"phone"` Email string `bson:"email"` Sex string `bson:"sex"` } //數據庫連接主要用到了mgo中的Dial()函數,連接形式如mgo.Dial(url1,url2,url3) func ConnecToDB() *mgo.Collection { session, err := mgo.Dial("127.0.0.1:27017") if err != nil { panic(err) } //defer session.Close() session.SetMode(mgo.Monotonic, true) c := session.DB("medex").C("student") return c } //插入主要用到了函數 func (c *Collection) Insert(docs ...interface{}) error func InsertToMogo() { c := ConnecToDB() stu1 := Student{ Name: "zhangsan", Phone: "13480989765", Email: "[email protected]", Sex: "F", } stu2 := Student{ Name: "liss", Phone: "13980989767", Email: "[email protected]", Sex: "M", } err := c.Insert(&stu1, &stu2) if err != nil { log.Fatal(err) } } //查詢單個主要用到了func (c *Collection) Find(query interface{}) *Query函數，查詢單個和多個主要用到了One()和Many()函數，條件組合可以查看mongDB數據庫使用 func GetDataViaSex() { c := ConnecToDB() result := Student{} err := c.Find(bson.M{"sex": "M"}).One(&result) if err != nil { log.Fatal(err) } fmt.Println("student", result) students := make([]Student, 20) err = c.Find(nil).All(&students) if err != nil { log.Fatal(err) } fmt.Println(students) } //查詢所有形如：c.Find(nil).Many(&results) //另外，方法中也有個根據id來查詢的方法 func (c *Collection) FindId(id interface{}) *Query， func GetDataViaId() { id := bson.ObjectIdHex("5a66a96306d2a40a8b884049") c := ConnecToDB() stu := &Student{} err := c.FindId(id).One(stu) if err != nil { log.Fatal(err) } fmt.Println(stu) } //更新通過函數 //*func (c *Collection) Update(selector interface{}, update interface{}) error //*func (c *Collection) UpdateAll(selector interface{}, update interface{}) (info *ChangeInfo, err error) //*func (c *Collection) UpdateId(id interface{}, update interface{}) error func UpdateDBViaId() { //id := bson.ObjectIdHex("5a66a96306d2a40a8b884049") c := ConnecToDB() err := c.Update(bson.M{"email": "[email protected]"}, bson.M{"$set": bson.M{"name": "haha", "phone": "37848"}}) if err != nil { log.Fatal(err) } } //刪除對應的方法 // //func (c *Collection) Remove(selector interface{}) error] //func (c *Collection) RemoveAll(selector interface{}) (info *ChangeInfo, err error) //func (c *Collection) RemoveId(id interface{}) error func RemoveFromMgo() { c := ConnecToDB() _, err := c.RemoveAll(bson.M{"phone": "13480989765"}) if err != nil { log.Fatal(err) } } func main() { InsertToMogo() GetDataViaSex() GetDataViaId() UpdateDBViaId() RemoveFromMgo() }