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90 lines
2.0 KiB
90 lines
2.0 KiB
package db
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import (
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"context"
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"database/sql"
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_ "github.com/denisenkom/go-mssqldb"
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"github.com/go-xorm/xorm"
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"go.mongodb.org/mongo-driver/mongo"
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"go.mongodb.org/mongo-driver/mongo/options"
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"LAPP_PRN_Service/glog"
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"log"
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"sync"
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"time"
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)
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type DB_CONFIG struct {
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Server string `json:"server"`
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Userid string `json:"userid"`
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Password string `json:"password"`
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Database string `json:"database"`
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Port int `json:"port"`
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}
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//定义常量，工厂号
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const PlantNr = 100
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//mongoDb数据库名称
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const DbName = "logDb"
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var (
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G_DbEngine *xorm.Engine
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G_SqlDbRawEngine *sql.DB
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mgoDb *mongo.Client
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mlock sync.Mutex
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)
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// 获取MSSQL原生连接
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func InitMssqlRawDb(connString string) (err error) {
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if G_SqlDbRawEngine, err = sql.Open("sqlserver", connString); err != nil {
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log.Printf("数据库引擎无法创建: %s, 错误原因: %v", connString, err)
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return
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}
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return
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}
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// 获取MSSQL的XORM连接
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func InitMssqlDb(connString string) (err error) {
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if G_DbEngine, err = xorm.NewEngine("mssql", connString); err != nil {
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log.Println("数据库引擎无法创建: ", err.Error())
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return
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}
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G_DbEngine.SetMaxIdleConns(100)
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G_DbEngine.SetMaxOpenConns(100)
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if err = G_DbEngine.Ping(); err != nil {
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log.Println("数据库连接失败:", connString, err.Error())
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return
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} else {
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log.Println("数据库连接成功:", connString)
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}
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//开启debug
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//G_DbEngine.ShowSQL(true)
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return
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}
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//创建mongoDb数据库链接
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func MgoDb() *mongo.Client {
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//判断mgoDb是否存在
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if mgoDb != nil {
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return mgoDb
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}
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//创建之前会涉及并发，所以要加锁
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mlock.Lock()
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defer mlock.Unlock()
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//细节，防止多个请求锁住
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if mgoDb != nil {
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return mgoDb
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}
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//1.建立链接
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ctx, _ := context.WithTimeout(context.Background(), 10*time.Second)
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client, err := mongo.Connect(ctx, options.Client().ApplyURI("mongodb://localhost:27017"))
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if err != nil {
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glog.Infoln("初始化数据库", "MgoDb return fail", err)
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return nil
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} else {
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mgoDb = client
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return mgoDb
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}
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}
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