loginaction.java

来自「这个是完整的wap项目的源码 开发语言 Java 系统架构 Struts +」· Java 代码 · 共 136 行

package com.longtime.wap.frame.web.action;

import java.util.ArrayList;
import java.util.List;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.commons.validator.GenericValidator;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.springframework.web.struts.ActionSupport;

import com.longtime.wap.common.WapConstant;
import com.longtime.wap.frame.common.UserSessionVO;
import com.longtime.wap.frame.service.LoginService;
import com.longtime.wap.frame.web.form.LoginForm;
import com.longtime.wap.model.UserInfo;

/**
 * 处理用户登录请求的action
 * 
 * @author bulc
 * @date 2007-10-31
 */
public class LoginAction extends ActionSupport {
	private static final Log LOGGER = LogFactory.getLog(LoginAction.class);
	
	private LoginService loginService;

	/**
	 * 由spring的IOC容器的注入service对象
	 * 
	 * @param loginService
	 *            loginService对象
	 */
	public void setLoginService(LoginService loginService) {
		this.loginService = loginService;
	}

	/**
	 * 处理用户登录请求的方法
	 * 
	 * @param mapping
	 *            action mapping对象
	 * @param form
	 *            表单对象
	 * @param request
	 *            request对象
	 * @param response
	 *            response对象
	 * @return 转向页面
	 * @throws Exception
	 * 				异常
	 */
	@SuppressWarnings("unchecked")
	@Override
	public ActionForward execute(ActionMapping mapping, 
			ActionForm form,
			HttpServletRequest request, 
			HttpServletResponse response)
			throws Exception {
		List<String> errors = null ;
		String forward = "user";
		LoginForm loginForm = (LoginForm) form;
		try {
			errors = validate(loginForm);
			if (!errors.isEmpty()) {
				// 如果表单验证数据有错误则直接返回页面.
				request.setAttribute(WapConstant.WAP_GLOBAL_MESSAGES, errors);
			} else {
				UserInfo userInfo = loginService
						.getUserInfoByUsername(loginForm.getUsername());
				if (null == userInfo) {
					// 用户不存在
					errors.add("用户不存在");
				} else {
					if (!userInfo.getPassword().
							equals(loginForm.getPassword())) {
						// 登录失败,用户名密码不匹配
						errors.add("用户名/密码不正确");
					} else {
						// 登录成功. 并且创建usersession vo对象
						UserSessionVO usVo = new UserSessionVO();
						usVo.setUserId(userInfo.getUserId());
						usVo.setUsername(userInfo.getUserName());
						usVo.setUserGroup(userInfo.getGroupId());
						if (userInfo.getGroupId() == 1) {
							usVo.setCpId(userInfo.getCp().getCpId());
						}
						usVo.setMoney(String.valueOf(userInfo.getMoney()));
						usVo.setNickName(userInfo.getNickname());
						usVo.setRegDate(userInfo.getRegDate());
						// 将usersession vo对象存入session
						request.getSession().setAttribute(
								WapConstant.USER_SESSION, usVo);
						LOGGER.info(loginForm.getUsername() + "登录成功!");
						// 管理员直接跳转到管理后台页面
						if (userInfo.getGroupId() != 2) {
							forward = "admin";
						}
					}
				}
				if (!errors.isEmpty()) {
					request.setAttribute(WapConstant.WAP_GLOBAL_MESSAGES,
							errors);
				}
			}
		} catch (Exception ex) {
			LOGGER.error(ex);
			ex.printStackTrace();
		}
		return mapping.findForward(forward);
	}

	/**
	 * 表单数据校验
	 * 
	 * @param loginForm
	 *            表单数据对象
	 * @return List 错误信息集
	 */
	@SuppressWarnings("unchecked")
	private List validate(LoginForm loginForm) {
		List errors = new ArrayList();
		if (GenericValidator.isBlankOrNull(loginForm.getUsername())
				|| GenericValidator.isBlankOrNull(loginForm.getPassword())) {
			errors.add("用户名/密码不能为空");
		}
		return errors;
	}
}