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Yangtao
2025-11-18 17:48:20 +08:00
commit 6e56cab848
196 changed files with 65809 additions and 0 deletions

128
pkg/datasource/mysql.go Normal file
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package datasource
import (
"servicebase/pkg/log"
"servicebase/pkg/repo"
"servicebase/pkg/utils"
"strings"
"time"
"github.com/spf13/viper"
"gorm.io/driver/mysql"
"gorm.io/gorm"
"gorm.io/gorm/schema"
"gorm.io/plugin/dbresolver"
)
type BaseModel struct {
ID int `gorm:"primaryKey" json:"id"`
CreateTime utils.Time `gorm:"type:datetime;index;not null" json:"createTime"`
}
func (model *BaseModel) BeforeCreate(tx *gorm.DB) (err error) {
model.CreateTime.Time = time.Now()
return
}
var DB *gorm.DB
type MySQLStarter struct {
}
func (s *MySQLStarter) Init() error {
InitMySQl()
return nil
}
func InitMySQl() {
dsn := viper.GetString("db.connectString")
log.InfoF("init db config with: %s", dsn)
var e error
if DB, e = gorm.Open(mysql.New(mysql.Config{
DriverName: "",
ServerVersion: "",
DSN: dsn,
Conn: nil,
SkipInitializeWithVersion: false,
DefaultStringSize: 255,
DefaultDatetimePrecision: nil,
DisableDatetimePrecision: true,
DontSupportRenameIndex: false,
DontSupportRenameColumn: true,
DontSupportForShareClause: false,
// DontSupportNullAsDefaultValue: false,
}), &gorm.Config{
SkipDefaultTransaction: false,
NamingStrategy: schema.NamingStrategy{
TablePrefix: "", // table name prefix, table for `User` would be `t_users`
SingularTable: true, // use singular table name, table for `User` would be `user` with this option enabled
NoLowerCase: false, // skip the snake_casing of names
NameReplacer: strings.NewReplacer("PID", "pid"), // use name replacer to change struct/field name before convert it to db name
},
FullSaveAssociations: false,
Logger: &log.GLog{}, //
NowFunc: func() time.Time {
return time.Now().Local()
},
DryRun: false,
PrepareStmt: false, // 执行任何 SQL 时都会创建一个 prepared statement 并将其缓存,以提高后续的效率
DisableAutomaticPing: false, // 在完成初始化后GORM 会自动 ping 数据库以检查数据库的可用性
DisableForeignKeyConstraintWhenMigrating: true, // 在 AutoMigrate 或 CreateTable 时GORM 会自动创建外键约束,若要禁用该特性,可将其设置为 true
DisableNestedTransaction: false, // 嵌套事务
AllowGlobalUpdate: false, // true = 启用全局 update/delete
QueryFields: false,
CreateBatchSize: 0,
ClauseBuilders: nil,
ConnPool: nil,
Dialector: nil,
Plugins: nil,
}); e != nil {
panic("failed to connect database")
}
_ = DB.Use(dbresolver.Register(dbresolver.Config{
Replicas: []gorm.Dialector{mysql.Open(dsn)},
Policy: dbresolver.RandomPolicy{},
}).Register(dbresolver.Config{
Replicas: []gorm.Dialector{mysql.Open(dsn)},
} /* &model.User{} */))
sqlDB, _ := DB.DB()
// SetMaxIdleConns 用于设置连接池中空闲连接的最大数量。
sqlDB.SetMaxIdleConns(20)
// SetMaxOpenConns 设置打开数据库连接的最大数量。
sqlDB.SetMaxOpenConns(100)
// SetConnMaxLifetime 设置了连接可复用的最大时间。
sqlDB.SetConnMaxLifetime(time.Hour * 24)
// log.InfoF("gorm metrics at: %d", viper.GetUint32("db.metrics.port"))
// _ = DB.Use(prometheus.New(prometheus.Config{
// DBName: "db_data-front", // 使用 `DBName` 作为指标 label
// RefreshInterval: 10, // 指标刷新频率(默认为 15 秒)
// PushAddr: "", // 如果配置了 `PushAddr`,则推送指标
// StartServer: false, // 启用一个 http 服务来暴露指标
// //HTTPServerPort: viper.GetUint32("db.metrics.port"), // 配置 http 服务监听端口,默认端口为 8080 (如果您配置了多个,只有第一个 `HTTPServerPort` 会被使用)
// MetricsCollector: []prometheus.MetricsCollector{
// &prometheus.MySQL{
// // 指标名前缀,默认为 `gorm_status_`
// // 例如: Threads_running 的指标名就是 `gorm_status_Threads_running`
// Prefix: "gorm_status_",
// // 拉取频率,默认使用 Prometheus 的 RefreshInterval
// Interval: 30,
// // 从 SHOW STATUS 选择变量变量,如果不设置,则使用全部的状态变量
// VariableNames: []string{"Threads_running"},
// },
// }, // 用户自定义指标
// }))
//_ = DB.Use(tracing.NewPlugin(tracing.WithoutMetrics()))
autoMigrate()
repo.SetDefault(DB)
}
func autoMigrate() {
//_ = DB.AutoMigrate(&model.User{})
//_ = DB.AutoMigrate(&model.LeaseType{})
}