对于采用Struts框架的Web应用,我们通过实例来介绍一下其基本流程.
action org.apache.struts.action.ActionServlet config /WEB-INF/struts-config2.xml debug 2 detail 2 2 action *.do
public class LoginAction extends Action { @Override public ActionForward execute(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception { UserActionForm userForm=(UserActionForm)form; String userName=userForm.getName(); int password=userForm.getPassword(); UserManage userManage=new UserManage(); User user=new User(); user.setName(userName); user.setPassword(password); try { userManage.ValidateUser(user); return mapping.findForward("success"); } catch (UserNotFoundException e) { e.printStackTrace(); request.setAttribute("message", e.getMessage()); }catch(PasswordErrorException e){ e.printStackTrace(); request.setAttribute("message", e.getMessage()); } return mapping.findForward("fail"); }
public class UserActionForm extends ActionForm { private String name; private int password; public String getName() { return name; } public void setName(String name) { this.name = name; } public int getPassword() { return password; } public void setPassword(int password) { this.password = password; } }
public class UserManage { public void ValidateUser(User user) { // 判断用户名密码是否正确 if (!"admin".equals(user.getName())) { throw new UserNotFoundException("用户不存在!用户名为:" + user.getName()); } else if (user.getPassword() != 123456) { throw new PasswordErrorException("密码错误"); } }}