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Editorial Team
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Asked: 2026-06-06T04:20:39+00:00

I’ve read some articles on the Internet that this is not possible. To communicate

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I’ve read some articles on the Internet that this is not possible. To communicate own SQL database that is located on other server from GWT application. Jetty doesn’t allow it.

I found a way how to perform it but it’s not very cosy. I have client and server part inside GWT. The server has to communicate with MySQL database on localhost. So I’ve written an ant script to build a war that I can launch on Apache Tomcat server. It works perfectly there but I’m not able to debug the code effectively.

Do you have some advices how to perform this task? I was thinking of writing the clienty only in GWT and find some waz how to communicate my own server written outside the GWT. I’ve found Apache Thrift for GWT but this edited library of thrift seem not to work properly.

Thank you very much for your answers:)

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  1. Editorial Team

    It is possible to communicate with a database from a GWT application. The client side has to call the methods of the server via GWT-RPC, which can communicate with any database.

    Maybe Jetty does not support it (have not tested it personally) but you can develop your web application using Apache too. There you can access the database the same way as from any web application:

    You will need the mysql-connector-java-5.1.20-bin.jar file (downloadable from: http://dev.mysql.com/downloads/connector/j/ ), and restart the server added to the $CATALINA_HOME/common/lib directory.

    OR added to the WEB-INF/lib folder of your web application.

    You can find tutorials online of how to develop an application using Tomcat instead of Jetty. For example: https://wiki.auckland.ac.nz/display/BeSTGRID/Deploying+GWT+to+Tomcat+in+Eclipse

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