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| package main
import (
"context"
"database/sql"
"fmt"
"github.com/gin-gonic/gin"
"github.com/seata/seata-go-samples/util"
"github.com/seata/seata-go/pkg/client"
ginmiddleware "github.com/seata/seata-go/pkg/integration/gin"
"github.com/seata/seata-go/pkg/util/log"
"net/http"
)
var db *sql.DB
func main() {
client.InitPath("../../../conf/seatago.yml")
//TODO 这里是不同模式
// db = util.GetXAMySqlDb() //xa
db = util.GetAtMySqlDb() //at
r := gin.Default()
r.Use(ginmiddleware.TransactionMiddleware())
r.POST("/updateDataSuccess", updateDataSuccessHandler)
if err := r.Run(":8080"); err != nil {
log.Fatalf("start tcc server fatal: %v", err)
}
}
func updateDataSuccessHandler(c *gin.Context) {
log.Infof("get tm updateData")
if err := updateDataSuccess(c); err != nil {
c.JSON(http.StatusBadRequest, "updateData failure")
return
}
if err := updateDataSuccess2(c); err != nil {
c.JSON(http.StatusBadRequest, "updateData2 failure")
return
}
//c.JSON(http.StatusOK, "updateData ok") //成功
c.JSON(http.StatusBadRequest, "updateData failure") //TODO 测试fail,回滚
}
func updateDataSuccess(ctx context.Context) error {
sql := "update order_tbl set count=? where id=?"
ret, err := db.ExecContext(ctx, sql, 10, 1)
if err != nil {
fmt.Printf("update failed, err:%v\n", err)
return nil
}
rows, err := ret.RowsAffected()
if err != nil {
fmt.Printf("update failed, err:%v\n", err)
return nil
}
fmt.Printf("更新成功 success： %d.\n", rows)
return nil
}
func updateDataSuccess2(ctx context.Context) error {
sql := "update order_tbl set count=? where id=?"
ret, err := db.ExecContext(ctx, sql, 101, 1)
if err != nil {
fmt.Printf("update failed, err:%v\n", err)
return nil
}
rows, err := ret.RowsAffected()
if err != nil {
fmt.Printf("update failed, err:%v\n", err)
return nil
}
fmt.Printf("更新成功 success： %d.\n", rows)
return nil
}
|
