Elasticsearch.Net

今天使用Elasticsearch作开发，很简单的查询，就出现Elasticsearch.Net.UnexpectedElasticsearchClientException异常，看样子像是序列化的异常，但实则是Elasticsearch服务器版本和C#用的Elasticsearch.Net客户端版本不匹配导致！

感谢某位仁兄在这篇博客https://www.cnblogs.com/yswenli/p/6266569.html#4387519中答复某位网友遇到同样的问题

var searchResponse = client.Search<LogModel>(s => s
            .Query(q => q
            .Match(m => m
            .Field(f => f.D)
            .Query(“Hello world”))));

 

Elasticsearch.Net.UnexpectedElasticsearchClientException:“Cannot deserialize the current JSON object (e.g. {"name":"value"}) into type 'System.Int64' because the type requires a JSON primitive value (e.g. string, number, boolean, null) to deserialize correctly.
To fix this error either change the JSON to a JSON primitive value (e.g. string, number, boolean, null) or change the deserialized type so that it is a normal .NET type (e.g. not a primitive type like integer, not a collection type like an array or List<T>) that can be deserialized from a JSON object. JsonObjectAttribute can also be added to the type to force it to deserialize from a JSON object.
Path 'hits.total.value', line 1, position 113.”

内部异常：

JsonSerializationException: Cannot deserialize the current JSON object (e.g. {"name":"value"}) into type 'System.Int64' because the type requires a JSON primitive value (e.g. string, number, boolean, null) to deserialize correctly.
To fix this error either change the JSON to a JSON primitive value (e.g. string, number, boolean, null) or change the deserialized type so that it is a normal .NET type (e.g. not a primitive type like integer, not a collection type like an array or List<T>) that can be deserialized from a JSON object. JsonObjectAttribute can also be added to the type to force it to deserialize from a JSON object.
Path 'hits.total.value', line 1, position 113.