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Unity 使用Sqlite
2022-07-01 21:39:00 【游戏编程】
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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