MongoDB入门教程之C#驱动操作实例

                    var db = mongo.GetDatabase(databaseName);

                    var collection = db.GetCollection(collectionName);

                    //这个地方要注意，一定要加上T参数，否则会当作object类型处理
//导致删除失败
                    collection.Remove(func);

                    mongo.Disconnect();

                }
                catch (Exception)
                {
                    mongo.Disconnect();
                    throw;
                }
            }
        }
        #endregion

5.   好，我们开一下2222端口，由于前前篇我已经把这个mongodb做成了服务，现在就直接连过去了，并做一下对Name的索引。

6. 一切准备妥当，我们做下基本的操作，比如这里我添加一千条数据，注意我开启的是安全模式，如果插入不成功，将会抛出异常。

 <1> Add:

 复制代码 代码如下:
 static void Main(string[] args)
        {
            MongodbHelper helper = new MongodbHelper();

            //插入1000条数据
            for (int i = 0; i < 1000; i++)
            {
                helper.Insert(new Person()
                {
                    ID = Guid.NewGuid().ToString(),
                    Name = "jack" + i,
                    Age = i,
                    CreateTime = DateTime.Now
                });
            }

            Console.WriteLine("插入成功");

            Console.Read();
        }
 

 乍一看显示的数据以为有问题，为什么没有出现jack0或者jack999，不过find的一下后心情舒坦了。

<2> update:   这里就把jack941的名字改掉“mary”

复制代码 代码如下:
static void Main(string[] args)
        {
            MongodbHelper helper = new MongodbHelper();

            //修改jack941改成mary
            var single = helper.Single(i => i.Name == "jack941");
            single.Name = "mary";
            helper.Update(single, i => i.ID == single.ID);

            Console.WriteLine("修改成功");
            Console.Read();
        }

<3>Delete：  删除mary这条记录

复制代码 代码如下:
static void Main(string[] args)
        {
            MongodbHelper helper = new MongodbHelper();

            //删除mary这个记录
            helper.Delete(i => i.Name == "mary");

            Console.WriteLine("删除成功");
            Console.Read();
        }

<4> list操作： 这里我获取一下名字里面带9的人数列表

复制代码 代码如下:
static void Main(string[] args)
        {
            MongodbHelper helper = new MongodbHelper();

            int pagecount;

            //获取名字里面带9的人数
            var list = helper.List(1, 20, i => i.Name.Contains("9"), out pagecount);

           Console.Read();
        }

总的运行代码

复制代码 代码如下:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Configuration;
using System.Linq.Expressions;

using MongoDB.Configuration;
using MongoDB.Linq;
using MongoDB.Attributes;

namespace MongoDB.Test
{
    public class MongodbHelper where T : class
    {
        string connectionString = string.Empty;

        string databaseName = string.Empty;

        string collectionName = string.Empty;

        static MongodbHelper mongodb;

        #region 初始化操作
        ///

        #region 实现linq查询的映射配置
        ///

                config.Mapping(mapping =>
                {
                    mapping.DefaultProfile(profile =>
                    {
                        profile.SubClassesAre(t => t.IsSubclassOf(typeof(T)));
                    });
                    mapping.Map();
                    mapping.Map();
                });

                config.ConnectionString(connectionString);

                return config.BuildConfiguration();
            }
        }
        #endregion

        #region 插入操作
        ///

                    var db = mongo.GetDatabase(databaseName);

                    var collection = db.GetCollection(collectionName);

                    collection.Insert(t, true);

                    mongo.Disconnect();

                }
                catch (Exception)
                {
                    mongo.Disconnect();
                    throw;
                }
            }
        }
        #endregion

        #region 更新操作
        ///