loginaction.java

网上商店 新增功能： 1

package netstore.security;

import java.util.Locale;
import javax.servlet.http.*;
import javax.servlet.ServletContext;
import org.apache.struts.action.*;
import org.apache.struts.util.MessageResources;
import netstore.businessobjects.Customer;
import netstore.framework.exceptions.*;
import netstore.framework.SessionContainer;
import netstore.framework.NetstoreBaseAction;
import netstore.framework.util.IConstants;
import netstore.service.INetstoreService;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
/**
 * Implements the logic to authenticate a user for the netstore application.
 */
public class LoginAction extends NetstoreBaseAction {
  protected static Log log = LogFactory.getLog( NetstoreBaseAction.class );
  /**
   * Called by the controller when the a user attempts to login to the
   * netstore application.
   */
  public ActionForward execute( ActionMapping mapping,
                                ActionForm form,
                                HttpServletRequest request,
                                HttpServletResponse response )
  throws Exception{
    MessageResources messages=getResources(request);
    ActionMessages errors=new ActionMessages();
    // Get the user's login name and password. They should have already
    // validated by the ActionForm.
    //获取用户名，密码
    String email = ((LoginForm)form).getEmail();
    String password = ((LoginForm)form).getPassword();

    // Obtain the ServletContext
    //获取servlet上下文
    ServletContext context = getServlet().getServletContext();

    // Login through the security service
    INetstoreService serviceImpl = getNetstoreService();

    //这里可能会抛出异常
    //抛出异常后，struts配置文件中会有gloal捕获，然后返回给登陆页面
    Customer  customer= serviceImpl.authenticate(email, password);
    SessionContainer existingContainer = getSessionContainer(request);
    existingContainer.setCustomer(customer);
    return mapping.findForward(IConstants.SUCCESS_KEY);
  }
}