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      package zjm.DbBase.demo.client;
import java.util.List;
import com.google.gwt.core.client.GWT;
import com.google.gwt.user.client.rpc.RemoteService;
import com.google.gwt.user.client.rpc.RemoteServiceRelativePath;
import com.google.gwt.user.client.rpc.ServiceDefTarget;
@RemoteServiceRelativePath("DbService")
public interface DbService extends RemoteService {

public List<DTO> loadData()throws Exception;
public static final String SERVICE_URI = "DbService";

public static class Util {
public static DbServiceAsync getInstance() {
DbServiceAsync instance = (DbServiceAsync) GWT
.create(DbService.class);
ServiceDefTarget target = (ServiceDefTarget) instance;
target.setServiceEntryPoint(GWT.getModuleBaseURL() + SERVICE_URI);
return instance;
}
}
}
   
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        package zjm.DbBase.demo.server;
import java.sql.DriverManager;
import java.util.LinkedList;
import java.util.List;
import zjm.DbBase.demo.client.DTO;
import zjm.DbBase.demo.client.DbService;
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