demo

go.mod

@@ -0,0 +1,14 @@
+module mysql_gorm_json
+
+go 1.21.1
+
+require (
+	gorm.io/driver/mysql v1.5.2
+	gorm.io/gorm v1.25.5
+)
+
+require (
+	github.com/go-sql-driver/mysql v1.7.0 // indirect
+	github.com/jinzhu/inflection v1.0.0 // indirect
+	github.com/jinzhu/now v1.1.5 // indirect
+)

go.sum

@@ -0,0 +1,11 @@
+github.com/go-sql-driver/mysql v1.7.0 h1:ueSltNNllEqE3qcWBTD0iQd3IpL/6U+mJxLkazJ7YPc=
+github.com/go-sql-driver/mysql v1.7.0/go.mod h1:OXbVy3sEdcQ2Doequ6Z5BW6fXNQTmx+9S1MCJN5yJMI=
+github.com/jinzhu/inflection v1.0.0 h1:K317FqzuhWc8YvSVlFMCCUb36O/S9MCKRDI7QkRKD/E=
+github.com/jinzhu/inflection v1.0.0/go.mod h1:h+uFLlag+Qp1Va5pdKtLDYj+kHp5pxUVkryuEj+Srlc=
+github.com/jinzhu/now v1.1.5 h1:/o9tlHleP7gOFmsnYNz3RGnqzefHA47wQpKrrdTIwXQ=
+github.com/jinzhu/now v1.1.5/go.mod h1:d3SSVoowX0Lcu0IBviAWJpolVfI5UJVZZ7cO71lE/z8=
+gorm.io/driver/mysql v1.5.2 h1:QC2HRskSE75wBuOxe0+iCkyJZ+RqpudsQtqkp+IMuXs=
+gorm.io/driver/mysql v1.5.2/go.mod h1:pQLhh1Ut/WUAySdTHwBpBv6+JKcj+ua4ZFx1QQTBzb8=
+gorm.io/gorm v1.25.2-0.20230530020048-26663ab9bf55/go.mod h1:L4uxeKpfBml98NYqVqwAdmV1a2nBtAec/cf3fpucW/k=
+gorm.io/gorm v1.25.5 h1:zR9lOiiYf09VNh5Q1gphfyia1JpiClIWG9hQaxB/mls=
+gorm.io/gorm v1.25.5/go.mod h1:hbnx/Oo0ChWMn1BIhpy1oYozzpM15i4YPuHDmfYtwg8=

main.go

@@ -0,0 +1,92 @@
+package main
+
+import (
+	"database/sql/driver"
+	"encoding/json"
+	"fmt"
+	"log"
+	"os"
+
+	"gorm.io/driver/mysql"
+	"gorm.io/gorm"
+	"gorm.io/gorm/logger"
+	"gorm.io/gorm/schema"
+)
+
+func main() {
+
+	dsn := "root:123456@tcp(127.0.0.1:3306)/demo?charset=utf8mb4&parseTime=True&loc=Local"
+	db, _ := gorm.Open(mysql.Open(dsn), &gorm.Config{
+		NamingStrategy: schema.NamingStrategy{ // table name prefix, table for `User` would be `t_users`
+			SingularTable: true, // use singular table name, table for `User` would be `user` with this option enabled
+		},
+		Logger: logger.New(
+			log.New(os.Stdout, "\r\n", log.LstdFlags),
+			logger.Config{
+				Colorful: true,
+				LogLevel: logger.LogLevel(4), // Log level
+			},
+		),
+	})
+	//
+	db.AutoMigrate(&UserEntity{})
+	//u := UserEntity{
+	//	Name: "张三3",
+	//	Profile: Profile{
+	//		Email:  "233@qq.com",
+	//		Mobile: "120",
+	//	},
+	//}
+	//db.Create(&u)
+
+	var user UserEntity
+	db.Debug().Where("class->'$.name' like (?)", "%zhang%").First(&user)
+	fmt.Println("用户", user)
+
+	//user.Profile.Status = "请假中"
+	//user.Class.Number = 1
+	//user.Class.Name = "zhangsan"
+	//db.Updates(&user)
+
+}
+
+type Profile struct {
+	Email  string `json:"email"`
+	Mobile string `json:"mobile"`
+	Status string `json:"status"`
+}
+type UserEntity struct {
+	gorm.Model
+	Name    string  `json:"name"`
+	Profile Profile `json:"profile" gorm:"type:json;comment:'个人信息'"`
+	Class   Class   `gorm:"column:class;type:json;comment:class" json:"class"`
+}
+
+type Class struct {
+	Name   string `json:"name"`
+	Number int    `json:"number"`
+}
+
+// Value 存储数据的时候转换为字符串
+func (t Class) Value() (driver.Value, error) {
+	return json.Marshal(t)
+}
+
+// Scan 读取数据的时候转换为json
+func (t *Class) Scan(value interface{}) error {
+	return json.Unmarshal(value.([]byte), &t)
+}
+
+// Value 存储数据的时候转换为字符串
+func (t Profile) Value() (driver.Value, error) {
+	return json.Marshal(t)
+}
+
+// Scan 读取数据的时候转换为json
+func (t *Profile) Scan(value interface{}) error {
+	return json.Unmarshal(value.([]byte), &t)
+}
+
+func (t *UserEntity) TableName() string {
+	return "user"
+}