54 lines
981 B
Go
54 lines
981 B
Go
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package conn
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import (
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"database/sql"
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"fmt"
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_ "github.com/go-sql-driver/mysql"
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"github.com/pkg/errors"
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"log"
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)
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type MySQLConn struct {
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Host string
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Port int
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Username string
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Password string
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DBName string
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}
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var mysqlDB *sql.DB
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// InitMySQLConn 初始化mysql连接
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func InitMySQLConn(cfg *MySQLConn) error {
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var err error
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mysqlDB, err = sql.Open("mysql", fmt.Sprintf("%s:%s@tcp(%s:%d)/%s?charset=utf8mb4&parseTime=True&loc=Local", cfg.Username, cfg.Password, cfg.Host, cfg.Port, cfg.DBName))
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if err != nil {
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return errors.Wrap(err, "open mysql failed")
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}
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mysqlDB.SetMaxIdleConns(5)
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mysqlDB.SetMaxOpenConns(50)
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// ping
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if err = mysqlDB.Ping(); err != nil {
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return errors.Wrap(err, "ping mysql failed")
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}
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log.Printf("connect mysql successfully, host:%s, port:%d\n", cfg.Host, cfg.Port)
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return nil
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}
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func GetMySQLConn() *sql.DB {
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return mysqlDB
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}
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func CloseMySQLConn() error {
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if mysqlDB == nil {
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return nil
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}
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return mysqlDB.Close()
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}
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