How to set http proxy for solr in order to make URLDataSource type source work well

[xie kidd]

Hi

I install a solr instance after firewall, and try the URLDataSource Example
as: http://wiki.apache.org/solr/DataImportHandler

Error happened, from log, i think this issue was caused by the http proxy.

So my question is, how should i set the http proxy for Solr? or for
URLDataSource type
following issue happened:

java.net.SocketTimeoutException: connect timed out
        at java.net.PlainSocketImpl.socketConnect(Native Method)
        at 
java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:310)
        at 
java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:176)
        at 
java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:163)
        at java.net.Socket.connect(Socket.java:542)
        at sun.net.NetworkClient.doConnect(NetworkClient.java:169)
        at sun.net.www.http.HttpClient.openServer(HttpClient.java:409)
        at sun.net.www.http.HttpClient.openServer(HttpClient.java:530)
        at sun.net.www.http.HttpClient.<init>(HttpClient.java:240)
        at sun.net.www.http.HttpClient.New(HttpClient.java:321)
        at 
sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:821)
        at 
sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:769)
        at 
sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:680)
        at 
sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1005)
        at 
org.apache.solr.handler.dataimport.URLDataSource.getData(URLDataSource.java:97)
        at 
org.apache.solr.handler.dataimport.URLDataSource.getData(URLDataSource.java:41)
        at 
org.apache.solr.handler.dataimport.XPathEntityProcessor.initQuery(XPathEntityProcessor.java:283)
        at 
org.apache.solr.handler.dataimport.XPathEntityProcessor.fetchNextRow(XPathEntityProcessor.java:224)
        at 
org.apache.solr.handler.dataimport.XPathEntityProcessor.nextRow(XPathEntityProcessor.java:204)
        at 
org.apache.solr.handler.dataimport.EntityProcessorWrapper.nextRow(EntityProcessorWrapper.java:243)
        at 
org.apache.solr.handler.dataimport.DocBuilder.buildDocument(DocBuilder.java:469)
        at 
org.apache.solr.handler.dataimport.DocBuilder.buildDocument(DocBuilder.java:408)
        at 
org.apache.solr.handler.dataimport.DocBuilder.doFullDump(DocBuilder.java:323)
        at 
org.apache.solr.handler.dataimport.DocBuilder.execute(DocBuilder.java:231)
        at 
org.apache.solr.handler.dataimport.DataImporter.doFullImport(DataImporter.java:411)
        at 
org.apache.solr.handler.dataimport.DataImporter.runCmd(DataImporter.java:476)
        at 
org.apache.solr.handler.dataimport.DataImporter$1.run(DataImporter.java:457)


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