forked from GoAdminGroup/go-admin
/
mssql.go
63 lines (51 loc) · 1.38 KB
/
mssql.go
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package mssql
import (
"database/sql"
"fmt"
_ "github.com/denisenkom/go-mssqldb"
"github.com/chenhg5/go-admin/modules/config"
"github.com/chenhg5/go-admin/modules/connections/performer"
"net/url"
"sync"
)
type Mssql struct {
SqlDBmap map[string]*sql.DB
Once sync.Once
}
var DB = Mssql{
SqlDBmap: map[string]*sql.DB{},
}
func GetMssqlDB() *Mssql {
return &DB
}
func (db *Mssql) Query(query string, args ...interface{}) ([]map[string]interface{}, *sql.Rows) {
return performer.Query(db.SqlDBmap["default"], query, args...)
}
func (db *Mssql) Exec(query string, args ...interface{}) sql.Result {
return performer.Exec(db.SqlDBmap["default"], query, args...)
}
func (db *Mssql) InitDB(cfglist map[string]config.Database) {
db.Once.Do(func() {
var (
err error
SqlDB *sql.DB
)
for conn, cfg := range cfglist {
u := &url.URL{
Scheme: "sqlserver",
User: url.UserPassword(cfg.USER, cfg.PWD),
Host: fmt.Sprintf("%s:%s", cfg.HOST, cfg.PORT),
}
SqlDB, err = sql.Open("sqlserver", u.String())
if err != nil {
SqlDB.Close()
panic(err.Error())
} else {
// 设置数据库最大连接 减少timewait 正式环境调大
SqlDB.SetMaxIdleConns(cfg.MAX_IDLE_CON) // 连接池连接数 = mysql最大连接数/2
SqlDB.SetMaxOpenConns(cfg.MAX_OPEN_CON) // 最大打开连接 = mysql最大连接数
db.SqlDBmap[conn] = SqlDB
}
}
})
}