如何成功调试《Struts在行动》的第一例

* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*
*/





/**
* Implementation of Action that validates a user
* logon.
*


* :TODO: Javadocs.
*
* todo Javadocs
* author George Franciscus
* -AT-version $Revision: $ $Date: $
*/
package app;




import java.io.IOException;
import java.io.InputStream;
import java.io.FileOutputStream;
import java.util.Enumeration;
import java.util.Properties;
import java.net.URL;




public class UserDirectory {




  /**
 
  /
  private static final String UserDirectoryFile =
    "resources/users.properties";





  /**
 
  /
  private static final String UserDirectoryHeader =
    "${user}=${password}";




  /**
 
  /
  private static UserDirectory userDirectory = null;





  /**
 
  /
  private static Properties p;





  /**
 
  /
  private UserDirectory() throws UserDirectoryException {




        java.io.InputStream i = null;
        p = null;
        i = this.getClass().getClassLoader().
          getResourceAsStream(UserDirectoryFile);





        if (null==i) {
          throw new UserDirectoryException();
        }




        else {




          try {
            p = new Properties();
            p.load(i);
            i.close();
          }




          catch (java.io.IOException e) {
            p = null;
            System.out.println(e.getMessage());
            throw new UserDirectoryException();
          }




          finally {
            i = null;

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TAG标签:	行动 第一 调试 成功 如何 the Apache OR OF null userId