Unity 使用Sqlite

我看网上都在讲引用sqlite3.dll，Mono.Data.Sqlite.dll，System.Data.dll，比如Setup Database (SQLite) for Unity
或者第三方的一些导入方式unity-3rdparty-sqlite-net
或者通过第三方包管理工具导入Unity3D 入门：如何管理 Unity 项目中的 NuGet 包？使用第三方 NuGet 包管理器——NuGetForUnity
但我发现Unity有关于Sqlite的库 Unity.VisualScripting.Dependencies.Sqlite.SQLiteConnection ，资料有Unity.VisualScripting.Dependencies.Sqlite.SQLiteConnection
所以我就简单做了个增删改查的demo，Unity.VisualScripting.Dependencies.Sqlite.SQLiteConnection可以 直接使用 ，可以完成对Sqlite的操作
下面是关键代码
创建表

using (var db = new SQLiteConnection(databasePath, SQLiteOpenFlags.ReadWrite)){    var count = db.CreateTable<UserInfo>();    count = db.CreateTable<RandomEvent>();}

增加数据

using (var db = new SQLiteConnection(databasePath, SQLiteOpenFlags.ReadWrite)){    var count = db.Insert(new UserInfo()    {        Name = "test1Name",        Sex = SexEnum.Woman,        Birthday = new DateTime(1990, 10, 2)    }, typeof(UserInfo));    List<UserInfo> users = new List<UserInfo>();    users.Add(new UserInfo()    {        Name = "test2Name",        Sex = SexEnum.Man,        Birthday = new DateTime(2000, 10, 2)    });    users.Add(new UserInfo()    {        Name = "test3Name",        Sex = SexEnum.Woman,        Birthday = new DateTime(2004, 10, 2)    });    count = db.InsertAll(users, typeof(UserInfo));}

修改数据

using (var db = new SQLiteConnection(databasePath, SQLiteOpenFlags.ReadWrite)){    var count = db.Update(new UserInfo()    {        Id = 3,        Name = "test1Name-Update",        Sex = SexEnum.Woman,        Birthday = new DateTime(1990, 10, 2)    }, typeof(UserInfo));}

删除数据

using (var db = new SQLiteConnection(databasePath, SQLiteOpenFlags.ReadWrite)){    string sql = "select Id,Name,Sex,Birthday from UserInfo where Id =3";    var data = new object[] { "Id", "Name", "Sex", "Birthday" };    var deleteData = db.Query(new TableMapping(typeof(UserInfo)), sql, data).FirstOrDefault();    if (deleteData != null)    {        var count = db.Delete(deleteData);    }    var count2 = db.Delete<UserInfo>(4);}

查询数据

using (var db = new SQLiteConnection(databasePath, SQLiteOpenFlags.ReadWrite)){    string sql = "select Id,Question,[Order] from RandomEvent";    var data = new object[] { "Id", "Question", "[Order]" };    var datas = db.Query(new TableMapping(typeof(RandomEvent)), sql, data);    //enum not work :(    //var datas2 = db.Find<UserInfo>(user => user.Name.Contains("test"));    var datas2 = db.Find<RandomEvent>(randomEvent => randomEvent.Question.Contains("q"));    var data3 = db.Get<UserInfo>(1);}

数据表需要做声明

[Table(name: nameof(RandomEvent))]public class RandomEvent{    [PrimaryKey, AutoIncrement]    public int Id { get; set; }    public string Question { get; set; }    public int Order { get; set; }}

[Table(name: nameof(UserInfo))]public class UserInfo{    [PrimaryKey, AutoIncrement]    public int Id { get; set; }    public string Name { get; set; }    public SexEnum Sex { get; set; }    public DateTime Birthday { get; set; }}

示例代码

TestSqliteScript
打开项目后，在 TestSqliteCanvas 下即可执行
如果觉得有不合适的地方，可以自己再封装一层~
作者：zLulus

游戏编程，一个游戏开发收藏夹~

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