loginaction.java

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//Created by MyEclipse Struts
// XSL source (default): platform:/plugin/com.genuitec.eclipse.cross.easystruts.eclipse_3.9.210/xslt/JavaClass.xsl

package com.ascent.struts.action;

import java.util.Iterator;
import java.util.List;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.ActionMessage;
import org.apache.struts.action.ActionMessages;

import com.ascent.bean.Customer;
import com.ascent.struts.form.LoginForm;

public class LoginAction extends BaseAction {

	/**
	 * Method execute
	 * 
	 * @param mapping
	 * @param form
	 * @param request
	 * @param response
	 * @return ActionForward
	 */
	public ActionForward execute(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) {

		ActionMessages errors = new ActionMessages();

		LoginForm loginForm = (LoginForm) form;
		/**
		 * 取得输入的用户名、密码
		 */
		String loginUser = loginForm.getCust_name();
		String loginPassword = loginForm.getPassword();

		List userList = this.getCustomerService().findCustomerByName(loginUser);// 根据用户名得到用户信息

		if (!loginForm.equals(null)) {
			if (userList.isEmpty()) {// 如果得到的用户信息为空，则返回错误信息

				errors.add(ActionMessages.GLOBAL_MESSAGE, new ActionMessage(
						"errors.user"));
				// errors.add("errors.user", new ActionError("errors.user"));
				saveErrors(request, errors);
				System.out.println("error.user");
				return mapping.findForward("fail");
			} else {// 否则，根据用户名得到密码，并和输入的密码进行判断
				Iterator it = userList.iterator();
				Customer cust = (Customer) it.next();
				if (loginPassword.equals(cust.getPassword())) {

					request.getSession().setAttribute("user", cust);
					System.out.println("用户名正确！");
					return mapping.findForward("success");
				} else {// 密码错误则返回错误信息

					errors.add("errors.password", new ActionMessage(
							"errors.password"));
					saveErrors(request, errors);
					System.out.println("error.password");
					return mapping.findForward("fail");
				}
			}
		} else {
			System.out.println("error.empty");
			return mapping.findForward("fail");
		}
	}
}