Multiple writers (including multiple instances of the same QueryResponseWriter class with different configurations) can be specified in the solrconfig.xml
Response Writer Resolution
Clients access specific QueryResponseWriters using the 'wt' parameter For the above example, running on localhost:8983/solr/, you could access:
Solr selects a handler to process a request using the following steps...
- look for a writer with a name matching the "wt"
- look for a writer configured with
- look for a writer configured with name="standard"
- use an anonymous instance of XmlResponseWriter
List of Writers Available
The Javadocs contain a complete list of Response Writers. Many of which have their own wiki pages...