104 lines
2.6 KiB
Go
104 lines
2.6 KiB
Go
package examples
|
|
|
|
import (
|
|
"fmt"
|
|
"time"
|
|
|
|
"github.com/gin-gonic/gin"
|
|
"github.com/yedf/dtm/common"
|
|
"github.com/yedf/dtm/dtmcli"
|
|
"gorm.io/gorm"
|
|
)
|
|
|
|
var XaClient *dtmcli.Xa = nil
|
|
|
|
type UserAccount struct {
|
|
common.ModelBase
|
|
UserId int
|
|
Balance string
|
|
}
|
|
|
|
func (u *UserAccount) TableName() string { return "user_account" }
|
|
|
|
func dbGet() *common.DB {
|
|
return common.DbGet(Config.Mysql)
|
|
}
|
|
|
|
func XaMain() {
|
|
app := BaseAppNew()
|
|
XaSetup(app)
|
|
go BaseAppStart(app)
|
|
time.Sleep(100 * time.Millisecond)
|
|
XaFireRequest()
|
|
time.Sleep(1000 * time.Second)
|
|
}
|
|
|
|
func XaFireRequest() {
|
|
_, err := XaClient.XaGlobalTransaction(func(gid string) (rerr error) {
|
|
defer common.P2E(&rerr)
|
|
req := GenTransReq(30, false, false)
|
|
resp, err := common.RestyClient.R().SetBody(req).SetQueryParams(map[string]string{
|
|
"gid": gid,
|
|
"user_id": "1",
|
|
}).Post(Busi + "/TransOutXa")
|
|
common.CheckRestySuccess(resp, err)
|
|
resp, err = common.RestyClient.R().SetBody(req).SetQueryParams(map[string]string{
|
|
"gid": gid,
|
|
"user_id": "2",
|
|
}).Post(Busi + "/TransInXa")
|
|
common.CheckRestySuccess(resp, err)
|
|
return nil
|
|
})
|
|
e2p(err)
|
|
}
|
|
|
|
// api
|
|
func XaSetup(app *gin.Engine) {
|
|
app.POST(BusiApi+"/TransInXa", common.WrapHandler(xaTransIn))
|
|
app.POST(BusiApi+"/TransOutXa", common.WrapHandler(xaTransOut))
|
|
Config.Mysql["database"] = "dtm_busi"
|
|
XaClient = dtmcli.NewXa(DtmServer, Config.Mysql, app, Busi+"/xa")
|
|
}
|
|
|
|
func xaTransIn(c *gin.Context) (interface{}, error) {
|
|
err := XaClient.XaLocalTransaction(c.Query("gid"), func(db *common.DB) (rerr error) {
|
|
req := reqFrom(c)
|
|
if req.TransInResult != "SUCCESS" {
|
|
return fmt.Errorf("tranIn failed")
|
|
}
|
|
dbr := db.Model(&UserAccount{}).Where("user_id = ?", c.Query("user_id")).
|
|
Update("balance", gorm.Expr("balance + ?", req.Amount))
|
|
return dbr.Error
|
|
})
|
|
e2p(err)
|
|
return M{"result": "SUCCESS"}, nil
|
|
}
|
|
|
|
func xaTransOut(c *gin.Context) (interface{}, error) {
|
|
err := XaClient.XaLocalTransaction(c.Query("gid"), func(db *common.DB) (rerr error) {
|
|
req := reqFrom(c)
|
|
if req.TransOutResult != "SUCCESS" {
|
|
return fmt.Errorf("tranOut failed")
|
|
}
|
|
dbr := db.Model(&UserAccount{}).Where("user_id = ?", c.Query("user_id")).
|
|
Update("balance", gorm.Expr("balance - ?", req.Amount))
|
|
return dbr.Error
|
|
})
|
|
e2p(err)
|
|
return M{"result": "SUCCESS"}, nil
|
|
}
|
|
|
|
func ResetXaData() {
|
|
db := dbGet()
|
|
db.Must().Exec("truncate user_account")
|
|
db.Must().Exec("insert into user_account (user_id, balance) values (1, 10000), (2, 10000)")
|
|
type XaRow struct {
|
|
Data string
|
|
}
|
|
xas := []XaRow{}
|
|
db.Must().Raw("xa recover").Scan(&xas)
|
|
for _, xa := range xas {
|
|
db.Must().Exec(fmt.Sprintf("xa rollback '%s'", xa.Data))
|
|
}
|
|
}
|