golang修仙记之gorm

Posted 2021-02-14

学习了如何连接数据库、简单的错误处理、关闭数据库、创建表、创建表中的一条记录、读取表的记录、更新表的记录、删除标的记录

package main

import (
    "github.com/jinzhu/gorm"
    _ "github.com/jinzhu/gorm/dialects/mysql"
    "time"
)

type User struct {
    gorm.Model
    Name     string
    Age      int
    Birthday time.Time
}

func main() {
    // connect the database
    db, err := gorm.Open("mysql", "user:[email protected](ip:port)/database?charset=utf8&parseTime=True&loc=Local")

    // panic handle
    if err != nil {
        panic("failed to connect database")
    }

    // close the connection
    defer db.Close()

    // Migrate the schema
    db.AutoMigrate(&User{})

    // create user of table
    db.Create(&User{Name: "Jinzhu", Age: 19, Birthday: time.Now()})

    // read the user of table
    var user User
    db.First(&user, 1)
    db.First(&user, "Name = ?", "Jinzhu")

    //update
    db.Model(&user).Update("Name", "Michael")

    //delete
    db.Delete(&user)
}