Spring架构增强MultiActionController(1)

public class SampleMultiMethodController extends MultiActionController...{
// 用户信息列表view
private static final String userInfoListView = "ehld.sample.getuserinfolist";
//用户信息编辑view
private static final String userFormView = "ehld.sample.userForm";
//提交成功后显示的view
private static final String userSuccessView ="
redirect:ehld.sample.getuserinfolist.do";
// 用户信息列表key值
private static final String userInfoListKey = "userInfoList";
// userid
private final String userIdParam = "id";
// 定义业务对象
private SampleAction sampleAction;
public SampleAction getSampleAction() ...{
return sampleAction;
}
public void setSampleAction(SampleAction sampleAction) ...{
this.sampleAction = sampleAction;
}
/**//**
* 功能：获得所有的用户信息

*/
public ModelAndView listUser(HttpServletRequest request,
HttpServletResponse response) throws Exception ...{
List userInfoList = this.sampleAction.getUserInfoList();
ModelAndView mav = new ModelAndView(userInfoListView);
mav.addObject(this.userInfoListKey,userInfoList);
return mav;
}
/**//**
* 功能：编辑用户信息

*/
public ModelAndView edtiUser(HttpServletRequest request,
HttpServletResponse response) throws Exception ...{
String uid = RequestUtils.getStringParameter(request, userIdParam);
UserInfoDTO userInfo = null;
if (!"".equals(uid)) ...{
userInfo = this.sampleAction.getUserInfo(uid);
}
if (userInfo == null) ...{
userInfo = new UserInfoDTO();
}
ModelAndView mav = new ModelAndView(this.userFormView, this
.getCommandName(null), userInfo);
return mav;
}
/**//**
* 功能：保存修改或新增的用户信息

*检查从页面bind的对象，如果userId或userName为空则返回原来的form页面;
否则进行保存用户信息操作，返回
*成功页面
*/
public ModelAndView saveUser(HttpServletRequest request,
HttpServletResponse response, UserInfoDTO command) throws 
Exception ...{
UserInfoDTO user = (UserInfoDTO) command;
ServletRequestDataBinder binder = new ServletRequestDataBinder(command,
getCommandName(command));
BindException errors = binder.getErrors();
ModelAndView mav = null;
if (user.getUserID() == null || "".equals(user.getUserID())) ...{
errors.rejectValue("userID", "userIdNull", "用户id不能为空");
}
if (user.getUserName() == null || "".equals(user.getUserName())) ...{
errors.reject("userNameNull", "用户名不能为空");
}
if (errors.hasErrors()) ...{
mav = new ModelAndView(this.userFormView, errors.getModel());
} else ...{
this.sampleAction.saveUserInfo(user);// 保存用户信息
mav = new ModelAndView(this.userSuccessView);
}
return mav;
}
/**//**
* 功能：删除用户信息

*/
public ModelAndView deleteUser(HttpServletRequest request,
HttpServletResponse response) throws Exception ...{
String uid = RequestUtils.getStringParameter(request, userIdParam);
UserInfoDTO user = new UserInfoDTO();
user.setUserID(uid);
this.sampleAction.deleteUserInfo(user);
ModelAndView mav = new ModelAndView(this.userSuccessView);
return mav;
}
}

listUser
edtiUser
saveUser