Question

I am having issues selecting everything in my 25 document Solr (3.6) index via Solrj (running Tomcat).

public static void main(String[] args) throws MalformedURLException, SolrServerException { 

        SolrServer solr = new HttpSolrServer("http://localhost:8080/solr");
        ModifiableSolrParams parameters = new ModifiableSolrParams();
        parameters.set("?q", "*:*");
        parameters.set("wt", "json");

        QueryResponse response = solr.query(parameters);
            System.out.println(response); 
    }

The result I get is:

{responseHeader={status=0,QTime=0,params={?q=*:*,wt=javabin,version=2}},response={numFound=0,start=0,docs=[]}}

Also, If I take the “?” out of parameters.set("?q", "*:*");I have to terminate the compilation or else it times out. The same happens if I replace the

"*:*"

with just

"*"

Also, I have tried parameters.set("qt", "/select");to no avail.

How do you select all and actually get results through Solrj?

Answer 1

I am not sure why this works but after failing on a hundred ideas, this one took:

public static void main(String[] args) throws MalformedURLException, SolrServerException { 

        SolrServer solr = new HttpSolrServer("http://localhost:8080/solr");
        ModifiableSolrParams parameters = new ModifiableSolrParams();
          parameters.set("q", "*:*"); //query everything thanks to user1452132!
          parameters.set("facet", true);//without this I cant select all
          parameters.set("fl", "id");//send back just the id values
          parameters.set("wt", "json");//Id like this in json format please

        QueryResponse response = solr.query(parameters);
            System.out.println(response); 
    }

Hope this helps someone out there.