连接池学习

connectPool/goroutine/writego.go

@@ -0,0 +1,45 @@
+package goroutine
+
+import (
+	"database/sql"
+	"fmt"
+	"github.com/google/uuid"
+	"math/rand"
+	"strconv"
+	"time"
+)
+
+func Datawrite(db *sql.DB, donetitle chan struct{}) {
+	timetick := time.Tick(1 * time.Second)
+	rand.Seed(time.Now().UnixNano())
+
+	for {
+		select {
+		case <-timetick:
+			uid, error := uuid.NewRandom()
+			if error != nil {
+				panic(error)
+			}
+			tx, err := db.Begin()
+			if err != nil {
+				panic(err)
+			}
+			fmt.Println("开始事务")
+			_, err = tx.Exec(`insert INTO article (uid,content,author,age) values (?,?,?,?)`, uid, "123", "用户"+strconv.Itoa(rand.Intn(1000)), rand.Intn(40)+60)
+			if err != nil {
+				if rbErr := tx.Rollback(); rbErr != nil {
+					panic("回滚失败: " + rbErr.Error())
+				}
+				panic("插入失败: " + err.Error()) // 明确错误类型
+			}
+			err = tx.Commit()
+			if err != nil {
+				panic(err)
+			}
+			fmt.Println("插入数据成功")
+		case <-donetitle:
+			return
+		}
+	}
+
+}