Solr学习（六）利用Solr的C#客户端SolrNet检索数据

问题导读
1、你如何学习Solr？
2、如何利用Solr的C#客户端库SolrNet访问Solr？



本文接上一篇：Solr学习（五）DIH增量、定时导入并检索数据
利用Solr的C#客户端库SolrNet访问Solr：
参考： https://github.com/mausch/SolrNe ... tion/Basic-usage.md
First, we have to map the Solr document to a class. Let's use a subset of the default schema that comes with the Solr distribution:

public class Product {
    [SolrUniqueKey("id")]
    public string Id { get; set; }

    [SolrField("manu_exact")]
    public string Manufacturer { get; set; }

    [SolrField("cat")]
    public ICollection<string> Categories { get; set; }

    [SolrField("price")]
    public decimal Price { get; set; }

    [SolrField("inStock")]
    public bool InStock { get; set; }
}
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It's just a POCO with some attributes: SolrField maps the attribute to a Solr field and SolrUniqueKey (optional but recommended) maps an attribute to a Solr unique key field.

Now we'll write some tests using this mapped class. Let's initialize the library:

[TestFixtureSetUp]
public void FixtureSetup() {
    Startup.Init<Product>("http://localhost:8983/solr");
}
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Let's add a document (make sure you have a running Solr instance before running this test):

[Test]
public void Add() {
    var p = new Product {
        Id = "SP2514N",
        Manufacturer = "Samsung Electronics Co. Ltd.",
        Categories = new[] {
            "electronics",
            "hard drive",
        },
        Price = 92,
        InStock = true,
    };

    var solr = ServiceLocator.Current.GetInstance<ISolrOperations<Product>>();
    solr.Add(p);
    solr.Commit();
}
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Let's see if the document is where we left it:

[Test]
public void Query() {
    var solr = ServiceLocator.Current.GetInstance<ISolrOperations<Product>>();
    var results = solr.Query(new SolrQueryByField("id", "SP2514N"));
    Assert.AreEqual(1, results.Count);
    Console.WriteLine(results[0].Price);
}
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好了，基本的东西差不多就这样了，接下来目标是用asp.net做一个真正的全文检索的页面。