LiteDB基本使用

1.创建实体类

创建一个实体类

{public int Id { get; set; }public int Age { get; set; }public string Name { get; set; } = string.Empty;public string[] Phone { get; set; }public bool IsActive { get; set; }}

2.连接数据库以及一些CRUD

在NuGet中添加LiteDB

    // 打开数据库，如果不存在就会自动创建var db = new LiteDatabase(@"MyData.db");// 增删改查案例// 获取Student集合对象var col = db.GetCollection<Student>("student");for(int i = 1; i < 10; i++) {var student = new Student(){Id = i,Age = 18+i,Name = "Test",Phone = new string[] { "8000-1000"+i, "1001-8080"+i },IsActive = true, };// 数据插入col.Insert(student);}// 在id字段上创建唯一索引col.EnsureIndex(x => x.Id, true);// 数据查询List<Student> list = col.Find(x => x.Age > 20).ToList();Student user = col.FindOne(x => x.Id == 1);Console.WriteLine($"Lite数据库中共有{list.Count}人年龄大于20的人");foreach (Student stu in list){ShowInfo(stu);}Console.WriteLine("Lite数据库中Id为1的人");ShowInfo(user);// 删除所有数据col.DeleteAll();
}static void ShowInfo(Student student)
{Console.WriteLine("姓名："+student.Name + "年龄："+student.Age);
}