GET /_search
{
    "_source": {
        "includes": [ "obj1.*", "obj2.*" ],
        "excludes": [ "*.description" ]
    },
    "query" : {
        "term" : { "user" : "kimchy" }
    }
}

在Elasticsearch.Net里的使用方法如下：

SearchRequest<object> request = new SearchRequest<object>("4d326769-d11e-46d5-8e3e-2160e17bafa0", "");
request.Query = totalQuery;
request.From = 0;
request.Size = 100;
request.Source = new SourceFilter
{
　　Excludes = new Field("fname", null)
};
var result = client.Search<object>(request);
var documents = result.Documents;

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