go语言提供了数据库访问的统一接口,但是自己自己的具体数据库访问驱动实现。
开源比较常用的有go-sql-driver/mysql(原来的go-mysql-driver)和mymysql 我个人比较倾向于go-sql-driver,实现规范,通用性强 Go-SQL-Driver是它的新名字,已经迁移到了gitbub,地址:https://github.com/Go-SQL-Driver/MySQL 安装使用很简单 $ go get github.com/Go-SQL-Driver/MySQL 就按装到GOPATH下了 使用也简单,拿他的例子: 新建一张表CREATE TABLE `squareNum` ( `number` int(11) NOT NULL, `squareNumber` int(11) NOT NULL, PRIMARY KEY (`number`))
数据库操作
package mainimport ( "database/sql" "fmt" _ "github.com/Go-SQL-Driver/MySQL" //引入mysql驱动)func main() { /*DSN数据源名称 [username[:password]@][protocol[(address)]]/dbname[?param1=value1¶mN=valueN] user@unix(/path/to/socket)/dbname user:password@tcp(localhost:5555)/dbname?charset=utf8&autocommit=true user:password@tcp([de:ad:be:ef::ca:fe]:80)/dbname?charset=utf8mb4,utf8 user:password@/dbname 无数据库: user:password@/ */ db, err := sql.Open("mysql", "root:123456@tcp(192.168.1.203:3306)/test") //第一个参数数驱动名 if err != nil { panic(err.Error()) } defer db.Close() // 欲编译语句,插入数据,这个是标准的go接口,所以只要标准sql,其他数据库通用的,只要换上面的驱动名 stmtIns, err := db.Prepare("INSERT INTO squareNum VALUES( ?, ? )" ) // ? = 占位符 if err != nil { panic(err.Error()) } defer stmtIns.Close() // main结束是关闭 // Prepare statement for reading data stmtOut, err := db.Prepare("SELECT squareNumber FROM squareNum WHERE number = ?") if err != nil { panic(err.Error()) } defer stmtOut.Close() // Insert square numbers for 0-24 in the database for i := 0; i < 25; i++ { _, err = stmtIns.Exec(i, (i * i)) // 执行插入 if err != nil { panic(err.Error()) } } var squareNum int // we "scan" the result in here // Query the square-number of 13 err = stmtOut.QueryRow(13).Scan(&squareNum) // WHERE number = 13 if err != nil { panic(err.Error()) } fmt.Printf("The square number of 13 is: %d", squareNum) // Query another number.. 1 maybe? err = stmtOut.QueryRow(1).Scan(&squareNum) // WHERE number = 1 if err != nil { panic(err.Error()) } fmt.Printf("The square number of 1 is: %d", squareNum)}
go语言的数据库操作封装很好,比java的简单的多。o(∩∩)o...哈哈