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imDatabase.go
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imDatabase.go
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package imdatabase
import (
"database/sql"
"log"
_ "mysql"
"os"
"strconv"
"time"
)
var (
//dbHostsIp = "192.168.1.110:3306" //主机IP和端口号
//dbHostsIp = "127.0.0.1:3306" //主机IP和端口号
//dbHostsIp = "localhost:3306"
dbHostsIp = "127.0.0.1:3306"
//dbHostsIp = "10.66.115.255:3306"
dbUserName = "IM" // 用户名
dbPassword = "beeim1234" //密码
dbDatabase = "beeim" // 使用的数据库
)
type ImDb struct {
Db *sql.DB
}
//日志文档
func DatabaseLog(messages ...interface{}) { //记录数据库操作,以及问题
var year, month, day = time.Now().Date()
var LogPath = "./log/" + strconv.Itoa(year) + "/" + month.String() + "/" + strconv.Itoa(day) + "/"
err := os.MkdirAll(LogPath, 0777)
if err != nil {
return
}
databaselog, err := os.OpenFile(LogPath+"imDatabase.log", os.O_RDWR|os.O_APPEND|os.O_CREATE, 0777)
if err != nil {
return
}
defer databaselog.Close()
dblog := log.New(databaselog, "\r\n", log.Ldate|log.Ltime)
dblog.Println(messages)
}
//**************连接数据库*********
func (b *ImDb) ConnectDb() error {
db, err := sql.Open("mysql", dbUserName+":"+dbPassword+"@tcp("+dbHostsIp+")/"+dbDatabase)
//等价于:Odb, err := sql.Open("mysql", "IM:beeim1234@tcp(192.168.1.108:3306)/beeim")
if err != nil {
DatabaseLog("Connect database error:" + err.Error())
return err
}
DatabaseLog("Database " + dbDatabase + " is connected.")
err = db.Ping()
if err != nil {
DatabaseLog("数据库连接失败 ", err)
return err
}
db.SetMaxIdleConns(5)
db.SetMaxOpenConns(100)
b.Db = db
return nil
}
//**************关闭数据库*********
func (b *ImDb) CloseDb() {
b.Db.Close()
DatabaseLog("Database ", dbDatabase, "is closed.")
}
//******************建表 **************
func (b *ImDb) CreateTables() error {
//dialog表
result1, err := b.Db.Query(`create table dialog(dialog_id bigint not null,
uid bigint not null,
timestamp datetime not null default 0,
primary key(dialog_id,uid))`) //添加复合主键,dialogid和uid
if err != nil {
DatabaseLog("Create dialogTable fail:" + err.Error())
return err
}
defer result1.Close()
DatabaseLog("Create dialogTable success.")
//act_dialog表
result2, err := b.Db.Query("create table act_dialog(dialog_id bigint not null unique)")
if err != nil {
DatabaseLog("Create act_dialogTable fail:" + err.Error())
return err
}
defer result2.Close()
//DatabaseLog("Create act_dialogTable success.")
//message表
result3, err := b.Db.Query(`create table message(sender_id bigint not null,
dialog_id bigint not null,
type int not null,
information varchar(2048),
timestamp datetime not null default 0)
`)
if err != nil {
DatabaseLog("Create messageTable fail:" + err.Error())
return err
}
defer result3.Close()
DatabaseLog("Create messageTable success:")
//outlinemessage表
result4, err := b.Db.Query(`create table outlinemessage(receiver_id bigint not null,
type int not null,
packet varbinary(255),
timestamp datetime not null default 0)
`)
if err != nil {
DatabaseLog("Create oueLineMessageTable fail:" + err.Error())
return err
}
defer result4.Close()
//DatabaseLog("Create oueLineMessageTable success.")
//user表
result5, err := b.Db.Query(`create table user(uid bigint not null unique)`)
if err != nil {
DatabaseLog("Create userTable fail:" + err.Error())
return err
}
defer result5.Close()
//DatabaseLog("Create userTable success.")
return nil
}
//********************插入dialog*****************
func (b *ImDb) AddDialog(dialogid uint64, uids []uint64) error {
stmt, err := b.Db.Prepare("insert into dialog(dialog_id,uid) values(?,?) ")
if err != nil {
DatabaseLog("Prepare to insert ", dialogid, uids, " into dialogTable fail:", err.Error())
return err
}
defer stmt.Close()
//插入数据
for _, id := range uids {
_, err = stmt.Exec(dialogid, id)
if err != nil {
DatabaseLog("Insert ", dialogid, uids, " into dialogTable fail:", err.Error())
return err
}
}
return nil
}
//********************插入act_dialog*****************
func (b *ImDb) AddActDialog(dialogid uint64) error {
stmt, err := b.Db.Prepare("insert into act_dialog(dialog_id) values(?) ")
if err != nil {
DatabaseLog("Prepare to insert ", dialogid, " into act_dialogTable fail:", err.Error())
return err
}
defer stmt.Close()
//插入数据
_, err = stmt.Exec(dialogid)
if err != nil {
DatabaseLog("Insert ", dialogid, " into act_dialogTable fail:", err)
return err
}
return nil
}
//********************插入message*****************
func (b *ImDb) AddMessage(uid uint64, dialogid uint64, msgType uint32, information string, messageTimestamp string) error {
stmt, err := b.Db.Prepare("insert into message(sender_id,dialog_id,type,information,timestamp) values(?,?,?,?,?) ")
if err != nil {
DatabaseLog("Prepare to insert ", uid, dialogid, messageTimestamp, " into messageTable fail:", err.Error())
return err
}
defer stmt.Close()
//插入数据
_, err = stmt.Exec(uid, dialogid, msgType, information, messageTimestamp)
if err != nil {
DatabaseLog("Insert ", dialogid, uid, msgType, messageTimestamp, " into messageTable fail:", err.Error())
return err
}
//显示关闭
//stmt.Close()
return nil
}
//********************插入OutLineMessage*****************
func (b *ImDb) AddOutlineMsg(uid uint64, types uint32, packet []byte, messageTimestamp string) error {
stmt, err := b.Db.Prepare("insert into outlinemessage(receiver_id,type,packet,timestamp) values(?,?,?,?) ")
if err != nil {
DatabaseLog("Prepare to insert ", uid, " into outlinemessageTable fail:", err.Error())
return err
}
defer stmt.Close()
//插入数据
_, err = stmt.Exec(uid, types, packet, messageTimestamp)
if err != nil {
DatabaseLog("Insert ", uid, " into dialogTable fail:"+err.Error())
return err
}
return nil
}
//********************插入user*****************
func (b *ImDb) AddUser(uid uint64) error {
//查找用户是否已存在
rows, err := b.Db.Query("select uid from user where uid=?", uid)
if err != nil {
DatabaseLog("Prepare to insert into userTable fail:" + err.Error())
// DbErrLog("Prepare to insert " + uid + " into userTable fail:" + err.Error())
return err
}
defer rows.Close()
if rows.Next() != true { //不存在,则插入
stmt, err := b.Db.Prepare("insert into user(uid) values(?) ")
if err != nil {
return err
}
defer stmt.Close()
//插入数据
_, err = stmt.Exec(uid)
if err != nil {
DatabaseLog("Insert ", uid, " into userTable fail:"+err.Error())
return err
}
DatabaseLog("Add user ", uid, " to usertable.")
}
return nil
}
//删除数据表信息,deleteString为prepare语句,参数在parameter
//例子:
//DeleteDbTable("delete from act_dialog where dialog_id=?",1234)
func (b *ImDb) DeleteDbTable(deletePrepareString string, parameter ...interface{}) error {
//****************删除*********************
stmt, err := b.Db.Prepare(deletePrepareString)
if err != nil {
DatabaseLog("Prepare to delete Table fail:", err)
return err
}
defer stmt.Close()
_, err = stmt.Exec(parameter...)
if err != nil {
DatabaseLog("Delete Table fail:", err)
return err
}
DatabaseLog(deletePrepareString, parameter)
return nil
}
//更新数据,输入update的prepare语句,parameter为参数
//例子:
//UpdateTable("update dialog set timestamp=? where dialog_id=? and uid=?","0000-00-00 00:00:00",111222,333)
func (b *ImDb) UpdateTable(updatePrepareString string, parameter ...interface{}) error {
stmt, err := b.Db.Prepare(updatePrepareString)
if err != nil {
DatabaseLog("Prepare to update table fail:", err)
return err
}
defer stmt.Close()
_, err = stmt.Exec(parameter...)
if err != nil {
DatabaseLog("Update Table fail:", err)
return err
}
DatabaseLog(updatePrepareString, parameter)
return nil
}
//******************************************
//******************************************
//**************其他操作********************
/*func others() {
//*******************查询*********************
rows, err := Db.Query("select age,id, timestamp from test where id=?",111) //test是测试用的,以后删除
if err != nil {
fmt.Println("操作失败:", err)
return
}
defer rows.Close()
var id uint64
var age int
var timestamp []byte
for rows.Next() {
if err := rows.Scan(&id, &age, ×tamp); err == nil {
fmt.Print(id)
fmt.Print("\t")
fmt.Println(age)
fmt.Print("\t")
fmt.Println(tstamp)
// if timestamp == "0000-00-00 00:00:00" {
// fmt.Println("id=", id)
// }
fmt.Print("\t\r\n")
} else {
fmt.Println("*****************", err)
}
}
*/
/*
func main() {
var im ImDb
im.ConnectDb()
uids := make([]uint64, 0, 100)
for i := uint64(10); i <= 40; i++ {
uids = append(uids, i)
im.AddUser(i)
}
im.AddDialog(110, uids)
im.AddActDialog(110)
}
*/