您可以通过以下方式调整web.config中的JSON响应大小：

<configuration>
    <system.web.extensions>
        <scripting>  
             <webServices>                                                   
                 <jsonSerialization maxJsonLength="1000000" />                 
             </webServices>
        </scripting>
    </system.web.extensions>
</configuration>

进行快速搜索时,默认大小为102400.

maxJsonLength Optional attribute.

Configures the maximum length of the
JSON string (the maximum number of
UTF-8 characters).

The default length is 102400.

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