Exception in thread “main” Java lang.NoClassDefFoundError:org / apache / commons / codec / DecoderException
•
Java
I try to query Solr through solrj
This is my code
public class ReadFromSolr {
public static void main(String[] args) throws MalformedURLException,SolrServerException
{
String url = "http://localhost:8983/solr";
try{
SolrServer server = new CommonsHttpSolrServer(url);
ModifiableSolrParams params = new ModifiableSolrParams();
params.set("qt","/select");
params.set("q","name");
QueryResponse response = server.query(params);
System.out.println("response = " + response);
}
catch (MalformedURLException ex) {
ex.printStackTrace();
}
catch (SolrServerException ex) {
ex.printStackTrace();
}
}
}
It gives me an exception
PS. my peoject has the following cans:
** apache – commons-logging, * httpclient -4.2, httpcore 4.2. 1, slf4j – api 1.6. 2, apache – solr – solrj -1.4. 0 ***
Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/commons/codec/DecoderException
at org.apache.commons.httpclient.HttpMethodBase.<init>(HttpMethodBase.java:220)
at org.apache.commons.httpclient.methods.getmethod.<init>(getmethod.java:89)
at org.apache.solr.client.solrj.impl.CommonsHttpSolrServer.request(CommonsHttpSolrServer.java:288)
at org.apache.solr.client.solrj.impl.CommonsHttpSolrServer.request(CommonsHttpSolrServer.java:243)
at org.apache.solr.client.solrj.request.QueryRequest.process(QueryRequest.java:89)
at org.apache.solr.client.solrj.solrServer.query(SolrServer.java:118)
at com.gismo.ReadFromSolr.main(ReadFromSolr.java:27)
Caused by: java.lang.ClassNotFoundException: org.apache.commons.codec.DecoderException
at java.net.urlclassloader$1.run(UnkNown Source)
at java.net.urlclassloader$1.run(UnkNown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.urlclassloader.findClass(UnkNown Source)
at java.lang.ClassLoader.loadClass(UnkNown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(UnkNown Source)
at java.lang.ClassLoader.loadClass(UnkNown Source)
Solution
Commons codec. Is required on the classpath jar.
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