标签：blog http io ar os 使用 sp for strong
起步
现在已经非常擅长使用Repository方式开发关系数据库的程序了，但是在使用Nosql如Mongo的时候，更多的是使用Mongo Driver，无意中看到了MongoRepository，允许了以Repository的方式去开发使用Mongo了。
1.新建项目通过NuGet 引入MongoRepository ；
2.我们使用的是Console application新建一个App.config,添加如下信息：
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<connectionStrings>
<add name="MongoServerSettings"
connectionString="mongodb://localhost/SampleProject" />
</connectionStrings>
</configuration>
这里保证了程序连接到我们的名字为：SampleProject的Mongo上，如果不存在SampleProject系统则会自动帮助我们创建SampleProject。
定义业务模型
建立业务model集成Entity，这样程序会见Model文件对应到Mongo之中，创建Customer及product：
using System.Collections.Generic;
using MongoRepository;
public class Customer : Entity //Inherit from Entity!
{
public string FirstName { get; set; }
public string LastName { get; set; }
public List<Product> Products { get; set; }
public Customer()
{
this.Products = new List<Product>();
}
}
public class Product //No need to inherit from Entity; This object is not contained in
//it‘s "own" MongoDb document. It is only contained in a customer
{
public string Name { get; set; }
public decimal Price { get; set; }
}
程序会自动为每个继承自Entity的model创建一个string类型的属性：Id。
如何使用
建立连接，定义model之后就可以以Repository的方式使用Mongo了。
using System;
using System.Linq;
using MongoRepository;
class Program
{
static MongoRepository<Customer> customerrepo = new MongoRepository<Customer>();
static void Main(string[] args)
{
//Add customers
var john = new Customer() { FirstName = "John", LastName = "Doe" };
var jane = new Customer() { FirstName = "Jane", LastName = "Doe" };
var jerry = new Customer() { FirstName = "Jerry", LastName = "Maguire" };
customerrepo.Add(new[] { john, jane, jerry });
//Show contents of DB
DumpData();
//Update customers
john.FirstName = "Johnny"; //John prefers Johnny
customerrepo.Update(john);
jane.LastName = "Maguire"; //Jane divorces John and marries Jerry
customerrepo.Update(jane);
//Delete customers
customerrepo.Delete(jerry.Id); //Jerry passes away
//Add some products to John and Jane
john.Products.AddRange(new[] {
new Product() { Name = "Fony DVD Player XY1299", Price = 35.99M },
new Product() { Name = "Big Smile Toothpaste", Price = 1.99M }
});
jane.Products.Add(new Product() { Name = "Life Insurance", Price = 2500 });
customerrepo.Update(john);
customerrepo.Update(jane);
//Or, alternatively: customerrepo.Update(new [] { john, jane });
//Show contents of DB
DumpData();
//Finally; demonstrate GetById and First
var mysterycustomer1 = customerrepo.GetById(john.Id);
var mysterycustomer2 = customerrepo.First(c => c.FirstName == "Jane");
Console.WriteLine("Mystery customer 1: {0} (having {1} products)",
mysterycustomer1.FirstName, mysterycustomer1.Products.Count);
Console.WriteLine("Mystery customer 2: {0} (having {1} products)",
mysterycustomer2.FirstName, mysterycustomer2.Products.Count);
//Delete all customers
customerrepo.DeleteAll();
//Halt for user
Console.WriteLine("Press any key...");
Console.ReadKey();
}
private static void DumpData()
{
//Print all data
Console.WriteLine("Currently in our database:");
foreach (Customer c in customerrepo)
{
Console.WriteLine("{0}\t{1}\t has {2} products",
c.FirstName, c.LastName, c.Products.Count);
foreach (Product p in c.Products)
Console.WriteLine("\t{0} priced ${1:N2}", p.Name, p.Price);
Console.WriteLine("\tTOTAL: ${0:N2}", c.Products.Sum(p => p.Price));
}
Console.WriteLine(new string(‘=‘, 50));
}
}
执行结果：
Currently in our database:
John Doe has 0 products
TOTAL: $0,00
Jane Doe has 0 products
TOTAL: $0,00
Jerry Maguire has 0 products
TOTAL: $0,00
==================================================
Currently in our database:
Jane Maguire has 1 products
Life Insurance priced $2.500,00
TOTAL: $2.500,00
Johnny Doe has 2 products
Fony DVD Player XY1299 priced $35,99
Big Smile Toothpaste priced $1,99
TOTAL: $37,98
==================================================
Mystery customer 1: Johnny (having 2 products)
Mystery customer 2: Jane (having 1 products)
Press any key...
文件下载：http://download-codeplex.sec.s-msft.com/Download/Release?ProjectName=mongorepository&DownloadId=894208&FileTime=130528383908000000&Build=20941
标签：blog http io ar os 使用 sp for strong
原文地址：http://www.cnblogs.com/xiguain/p/4090468.html
