Hello,
I've got a problem getting Torque to work inside a servlet in a Tomcat
environment: I will try to describe the situation as good as I can. Thanks
for your help!
I've succeeded in getting Torque to generate classes and SQL files according
to my schema - and with the help of some information from this mailing-list
I have also succeeded in building a small class that uses Torque and
performs an Insert and a Select
-> I've got a torque.properties file that works (at least in the IDE
environment).
Here are the database settings that I use:
torque.database.default= bookstore
torque.database.bookstore.adapter= mysql
Using commons-dbcp
torque.dsfactory.bookstore.factory=org.apache.torque.dsfactory.PerUserPoolDa
taSourceFactory
torque.dsfactory.bookstore.pool.defaultMaxActive=10
torque.dsfactory.bookstore.pool.testOnBorrow=true
torque.dsfactory.bookstore.connection.driver = org.gjt.mm.mysql.Driver
torque.dsfactory.bookstore.connection.url =
jdbc:mysql://127.0.0.1:3306/bookstore
torque.dsfactory.bookstore.connection.user = torque_test
torque.dsfactory.bookstore.connection.password = ;-)
The runtime usage of Torque works within a class that runs inside my eclipse
IDE with all the jar files from the torque-3.1\lib added to the build path.
The three Methods that I use for testing are: (these methods work fine when
testing from inside eclipse, of course, using a System.out.println() rather
than the PrintWriter that I use for testing on Tomcat)
public static void checkTorque(PrintWriter out){
out.println("Is Torque initiated? ... "+Torque.isInit());
}
public static void read(PrintWriter out ) {
Criteria crit = new Criteria();
try{
List v = BookPeer.doSelect(crit);
out.println("<br> Read seems to work");
}catch(TorqueException e){
System.out.println(e);
out.println("<br> Read: "+e);
}
}
public static void insert(PrintWriter out ){
Author bloch = new Author();
bloch.setFirstName("testing " + System.currentTimeMillis());
bloch.setLastName("name");
try{
AuthorPeer.doInsert(bloch);
out.println("<br> Insert seems to work");
}catch(Exception e){
System.out.println(e);
out.println("<br> Insert: "+e);
}
}
When I run the same methods (using the same torque.properties) from within a
servlet (all the jar files in the shared lib folder of the server), I get
Exceptions...
- The Torque.isInit() works fine and returns 'true'
- But the read and insert tests both return:
'org.apache.torque.TorqueException: Could not retrieve connection info from
pool'
- If I use the Author.save() method instead of the
AuthorPeer.doInsert(Author), I get a NullPointerException
Does somebody know what I'm doing wrong? I'm really a newbie on the Tomcat
server, so it could be something quite basic... maybe...
Thanks again for your help!
Christian
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