通用的CRUD之MongoDB

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摘要

这是一个简便的,对MongoDB增删改查,无需提前建库,建表,安装就能快速上手使用。
MongoDB多条件查询需要JSON的多层嵌套如{DDATE:{$gte:{$date:’2023-06-05T13:41′},$lte:{$date:’2023-06-05T23:59′}},Qty:{$gt:10}},书写时非常难受,还容易出错。
本类库支持类SQL查询语法,如”DDATE>=’2023-06-05 09:12:24′ and DDATE<=’2023-06-05 13:28:48′ and Qty>10″,同时也支持原生查询语法。


前言

这是一个简便的,对MongoDB增删改查,无需提前建库,建表,安装就能快速上手使用。
MongoDB多条件查询需要JSON的多层嵌套如{DDATE:{$gte:{$date:'2023-06-05T13:41'},$lte:{$date:'2023-06-05T23:59'}},Qty:{$gt:10}},书写时非常难受,还容易出错。
本类库支持类SQL查询语法,如"DDATE>='2023-06-05 09:12:24' and DDATE<='2023-06-05 13:28:48' and Qty>10",同时也支持原生查询语法。

安装

Install-Package DbCRUD.MongoDbCRUD安装包

数据库连接及初始化 Database connection and initialization

 //数据库连接 Database connection   IDbCRUD testdb =new MongoDbCRUD("mongodb://localhost:27017/testdb");  //带连接选项初始化数据库连接对象   MongoDbCRUD testdb = new MongoDbCRUD("mongodb://localhost:27017/testdb", opt => { opt.AutoCreateIndex = true;opt.AutoOpen = true; }); 

插入数据 Insert data

//*****插入对象数据 Insert object data synchronously int id = testdb.Max<int>(tb_custormer); var customer = new CrudTestModel {     ID = id + 1,     Name = "objectData",     Phones = new string[] { "80000", "90000" },     FFloat=random.NextDouble(),     IsActive = true,     Dic = new Dictionary<string, object>     {         { "Name", "Embed_Data" },         { "DDate", DateTime.Now }     } }; var result = testdb.Insert(tb_custormer, customer); //*****插入字典数据 Insert dictionary data synchronously var dic1 = new Dictionary<string, object> {     //{ "_id", 1 },//***如果不指定ID,插入时会自动编一个objectid的唯一ID     { "Name", "MongodbCRUD" },     { "Qty",random.Next(1,10000) },     { "DDATE", DateTime.Now } }; var dicresult = testdb.Insert(autoIDData, dic1); //*****插入JSON数据 Insert JSON data  string jsondata = JsonConvert.SerializeObject(dic1); var result12 =testdb.Insert(tb_jsondata, jsondata); //*****SQL语句插入 sql command insert 大小写敏感 var result13 = testdb.Insert($"insert into {sqldata}('name','date') values ('test1','{DateTime.Now.ToString("yyyy-MM-dd HH:mm:dd")}')"); //*****批量插入列表 Batch insert List<Dictionary<string, object>> listdata = new List<Dictionary<string, object>>(); int maxid = testdb.Max<int>(dictable); for (int i = 0; i < 10; i++) {     maxid++;     var dic2 = new Dictionary<string, object>     {         { "_id",maxid },         { "Name", "Batch insert" },         { "Qty",random.Next(1,10000) },         { "DDATE", DateTime.Now }     };     listdata.Add(dic2); } var listResult= testdb.Insert(dictable, listdata); 

通用的CRUD之MongoDB

更新数据 update data

    var updata = new Dictionary<string, object>     {         { "Name", "更新指定字段数据 Updates the specified field data" },         { "Qty", 600}     };     var upresult = testdb.UpDate(dictable, updata, "_id=6");   //更新_id=2的数据     //【SQL语句更新】 更新_id=1的数据 ,mongodb对大小写敏感,所有sql语句中的表名和字段名大小写要与DB一致。     var sql_up_result = testdb.UpDate("UPDATE dicdata SET Name='zzw',Qty=188 where _id=1");   

更新及插入数据(数据存在更新,不存在插入) Update and insert data (there is an update of the data, but there is no insertion)

    //***** 更新或插入数据 Update or insert data     var dic1 = new Dictionary<string, object>     {         { "_id", 2 },         { "Name", "Inserts or updates a single piece of data" },         { "Qty", 200},         { "DDATE", DateTime.Now }     };     var result= testdb.Upsert(dictable, dic1);     //*****Batch insert or update Batch insert or update     var dic3 = new Dictionary<string, object>     {         { "_id", 3 },         { "Name", "Batch insert or update" },         { "Qty", 300},         { "DDATE", DateTime.Now }     };     List<Dictionary<string,object>> listdata=new List<Dictionary<string, object>> { dic3,dic1};     var listresult = testdb.Upsert(dictable, listdata);     //*****不存在就插入 Insert if it doesn't exist     int maxid = testdb.Max<int>(dictable)+1;     var dic4 = new Dictionary<string, object>     {         { "_id", maxid },         { "Name", "根据_id不存在插入值" },         { "Qty", 8000},         { "DDATE", DateTime.Now }     };     testdb.Upsert(dictable, dic4);  

查询数据 Query data

   ///查找id=2的数据     var databyid = testdb.FindByID<Dictionary<string, object>>(dictable, 2);      //查找id=2的数据,返回模型数据。      //【注意】模型和数据库中的列数不一致时,需要在模型上加 [BsonIgnoreExtraElements]特性,     //        mongodb默认时UTC时间,如果要转本地时间,在模型时间属性上加[BsonDateTimeOptions(Kind =DateTimeKind.Local)]特性     var modeldata = testdb.Find<CrudTestModel1>(tb_custormer, "_id=2")?.FirstOrDefault();      ///查找id>2的数据,返回按DDATE排序,并排除dic列的最新一条数据     var ondresult = testdb.FindOne<CrudTestModel>(tb_custormer, "_id>2", project: "!dic", sort: "!DDATE");      //查找Qty>10的数据     var wheredata = testdb.Find<Dictionary<string, object>>(dictable, "Qty>10");          //【SQL语法,查找开头】,查找name中'Mongodbi'开头的数据,条件不区分大小写,字段名称区分大小写     var like_result = testdb.FindAndResult<Dictionary<string, object>>(autoIDData, "Name like'Mongodb%'");      //【SQL语法,查找结尾】,查找name中'crud'开头的数据,条件不区分大小写,字段名称区分大小写     var like_result1 = testdb.FindAndResult<Dictionary<string, object>>(autoIDData, "Name like'%crud'");      //【SQL语法,包含】,查找name中包含'odb'的数据,条件不区分大小写,字段名称区分大小写     var like_result2 = testdb.FindAndResult<Dictionary<string, object>>(autoIDData, "Name like'%odb%'");          //【MongoDB语法】,查找name中'Mongodbi'开头的数据,不区分大小写     var bsonwheredata = testdb.Find<Dictionary<string, object>>(autoIDData, "{Name:/^Mongodb/i}");          //****SQL语法和Mongodb查询语法不能混用,简单查询使用SQL语法,书写简单,复杂查询只能使用原生语法。     //【简写语法】分页查找Qty>10,返回除_id列,按DDATE倒序排序的数据,返回第一页10条数据。     var pagedata = testdb.GetPagingData<Dictionary<string, object>>(tb_jsondata, "Qty>10",project:"!_id",sort: "!DDATE", pageindex: 1, pagecount: 10);          //【Mongodb语法】分页查找Qty>10,返回除_id列,按DDATE倒序排序的数据,返回第一页10条数据。     var mgdb_pagedata = testdb.GetPagingData<Dictionary<string, object>>(tb_jsondata, "{Qty:{$gt:10}}", project: "{_id:0}", sort: "{DDATE:-1}", pageindex: 1, pagecount: 10);          //【返回DataTable】分页查找Qty>10,返回除_id列,按DDATE倒序排序的数据,返回第一页10条数据。     var datatable_pagedata = testdb.GetPagingData(autoIDData, "Qty>10", project: "!_id", sort: "!DDATE", pageindex: 1, pagecount: 10);         //【多条件查询】分页查找Qty>10,返回除_id列,按DDATE倒序排序的数据,返回第一页10条数据。     var mu_where = testdb.GetPagingData<Dictionary<string, object>>(dictable, "_id>=6 and Qty>10", sort: "!DDATE", pageindex: 1, pagecount: 10);         //【日期范围查询】查找DDATE>='2023-06-05 09:12:24' 和 DDATE<='2023-06-05 13:28:48'的数据。     var date_result = testdb.GetPagingDataAndResult<Dictionary<string, object>>(dictable, "DDATE>='2023-06-05 09:12:24' and DDATE<='2023-06-05 13:28:48'", sort: "!DDATE", pageindex: 1, pagecount: 10);          //【in查询】查找Qty=200和300的数据。     var in_result = testdb.GetPagingDataAndResult<Dictionary<string, object>>(dictable, "Qty in(200,300)", sort: "!DDATE", pageindex: 1, pagecount: 10);         //【in模糊查询】查找Name=Batch insert和data结尾的数据。     var in_fuzzy = testdb.GetPagingDataAndResult<Dictionary<string, object>>(dictable, "Name in('Batch insert','%data')", sort: "!DDATE", pageindex: 1, pagecount: 10);      //【正则表达式查询】查找Name=Batch开头的数据。     var in_regex = testdb.GetPagingDataAndResult<Dictionary<string, object>>(dictable, "Name reg'^Batch'", sort: "!DDATE", pageindex: 1, pagecount: 10);s     //【sql语句查询】查找_id=1的数据     string sqlcmd = $"select _id,Name,DDATE from {dictable} where _id=1";     var sqldata = testdb.Find<Dictionary<string, object>>(sqlcmd);     //【委托查询】查找_id>=6 and Qty>10的数据。数据在委托中返回,方便进行数据处理     var action_result = testdb.GetPagingDataAction<CrudTestModel1>(dictable, "_id>=6 and Qty>10", datalist =>      {         double sum = datalist.Sum(s => s.FFloat);                      });     var link_where = testdb.FindAndResult<CrudTestModel>(tb_custormer, q=>q.ID>6 && q.ID<=10 && q.Name.Contains("obje")); 

删除数据 delete data

    //**删除ID=8的数据     var result = testdb.Delete(dictable, 8);      //**删除qty>10的数据      var wherresult = testdb.Delete(dictable, "_id>=10");     //**使用sql语句删除ID = 7的数据,大小写敏感     string sql = $"delete from {dictable} where _id=7";     var sqlresult = testdb.Delete(sql); 

消息事件绑定(可日志输出)

    public DbTest() {     t estdb.Message += Testdb_Message;     }      private void Testdb_Message((string Message, string Level, DateTime Time) obj)     {        Debug.WriteLine($"{obj.Time}|{obj.Level}|{obj.Message}");     } 

增删改查系列包

一致的增删改查语法

LiteDB

IDbCRUD testdb = new LiteDbCRUD(@"filename=CRUDTestDB.db"); //【日期范围查询】查找DDATE>='2023-06-05 09:12:24' 和 DDATE<='2023-06-05 13:28:48'的数据。 var date_result = testdb.GetPagingDataAndResult<Dictionary<string, object>>(dictable, $"DDATE>='2023-06-05 09:12:24' and DDATE<='{DateTime.Now:yyyy-MM-dd HH:mm:ss}'"); 

MongoDB

IDbCRUD testdb =new MongoDbCRUD("mongodb://localhost:27017/testdb"); //【日期范围查询】查找DDATE>='2023-06-05 09:12:24' 和 DDATE<='2023-06-05 13:28:48'的数据。 var date_result = testdb.GetPagingDataAndResult<Dictionary<string, object>>(dictable, $"DDATE>='2023-06-05 09:12:24' and DDATE<='{DateTime.Now:yyyy-MM-dd HH:mm:ss}'"); 

Mysql

IDbCRUD testdb = new MysqlCRUD(@"Server=127.0.0.1;Database=testdb;Uid=root;Pwd=;");

//【日期范围查询】查找DDATE>='2023-06-05 09:12:24' 和 DDATE<='2023-06-05 13:28:48'的数据。 var date_result = testdb.GetPagingDataAndResult<Dictionary<string, object>>(dictable, $"DDATE>='2023-06-05 09:12:24' and DDATE<='{DateTime.Now:yyyy-MM-dd HH:mm:ss}'");  

Sqlite

IDbCRUD testdb = new SqliteCRUD($@"Data Source=sqlitedb.db; Cache=Shared")

//【日期范围查询】查找DDATE>='2023-06-05 09:12:24' 和 DDATE<='2023-06-05 13:28:48'的数据。 var date_result = testdb.GetPagingDataAndResult<Dictionary<string, object>>(dictable, $"DDATE>='2023-06-05 09:12:24' and DDATE<='{DateTime.Now:yyyy-MM-dd HH:mm:ss}'");  

SQL SERVER

IDbCRUD testdb = new SqlServerCRUD(@"Data Source=xxx;Initial Catalog=xxx;User ID=sa;Password=xxx;Encrypt=True;TrustServerCertificate=True;"); //【日期范围查询】查找DDATE>='2023-06-05 09:12:24' 和 DDATE<='2023-06-05 13:28:48'的数据。 var date_result = testdb.GetPagingDataAndResult<Dictionary<string, object>>(dictable, $"DDATE>='2023-06-05 09:12:24' and DDATE<='{DateTime.Now:yyyy-MM-dd HH:mm:ss}'");  

实体模型

     [BsonIgnoreExtraElements]     public class CrudTestModel1     {         [BsonId]         public int ID { get; set; }         public string Name { get; set; }         public string[] Phones { get; set; }         public bool IsActive { get; set; }         public double FFloat { get; set; } = 0.118;         [BsonDateTimeOptions(Kind = DateTimeKind.Local)]         public DateTime DDATE { get; set; } = DateTime.Now;      } 

更多使用方法请移步到仓库 https://gitee.com/lzcode/db-crud


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通用的CRUD之MongoDB