182云笔记项目.docx

1、182云笔记项目 登录(续)显示错误消息原理:1. 重构控制器增加异常处理方法 UserControllerExceptionHandler( UserNotFoundException.class) ResponseBody public JsonResult handleUserNotFound( UserNotFoundExceptione) e.printStackTrace(); return newJsonResult(2,e); ExceptionHandler(PasswordException.class) ResponseBody public JsonResult han

2、dlePassword( PasswordException e) e.printStackTrace(); return new JsonResult(3,e); 2. 重构JsonResult 添加 构造器public JsonResult(int state, Throwable e) this.state = state; this.message = e.getMessage(); 3. 重构 login.js 的loginAction方法, 显示错误信息var msg = result.message; if(result.state=2) $(#count).next().htm

3、l(msg); else if(result.state=3) $(#password).next().html(msg); else alert(msg); 4. 测试注册功能原理:1. 持久层1. 声明持久层方法: UserDaoint addUser(User user); 2. 声明SQL UserMappeer.xmlinsert into cn_user ( cn_user_id, cn_user_name, cn_user_password, cn_user_token, cn_user_nick ) values ( #id, #name, #password, #token,

4、 #nick )3. 测试 UserDaoTest:UserDao dao; Before public void initDao() dao = ctx.getBean( userDao, UserDao.class); Test public void testAddUser() String id=UUID.randomUUID().toString(); String name = Tom; String salt = 今天你吃了吗?; String password = DigestUtils.md5Hex(salt+123456); String token = ; String

5、nick = ; User user = new User( id, name, password, token, nick); int n = dao.addUser(user); System.out.println(n); 2. 业务层1. 声明业务层方法 UserService/* * UserService 中添加注册功能 * param name * param nick * param password * param confirm * return 注册成功的用户信息 * throws UserNameException 用户名异常 * throws PasswordExce

6、ption 密码异常 */ User regist(String name, String nick, String password, String confirm) throws UserNameException, PasswordException; 2. 声明业务层异常 UserNameExceptionpublic class UserNameException extends RuntimeException private static final long serialVersionUID = 6435296194529486206L; public UserNameExce

7、ption() public UserNameException(String message) super(message); public UserNameException(Throwable cause) super(cause); public UserNameException(String message, Throwable cause) super(message, cause); public UserNameException(String message, Throwable cause, boolean enableSuppression, boolean writa

8、bleStackTrace) super(message, cause, enableSuppression, writableStackTrace); 3. 重构 jdbc.properties 和 UserServiceImpl, 将salt存储到配置文件, 利用Spring注入到属性中:# jdbc.properties salt=u4ECAu5929u4F60u5403u4E86u5417? / UserServiceImpl Value(#jdbc.salt) private String salt; 4. 实现业务层方法: UserServiceImplpublic User re

9、gist(String name, String nick, String password, String confirm) throws UserNameException, PasswordException /检查name, 不能重复 if(name=null | name.trim().isEmpty() throw new UserNameException(不能空); User one = userDao.findUserByName(name); if(one!=null) throw new UserNameException(已注册); /检查密码 if(password=

10、null | password.trim().isEmpty() throw new PasswordException(不能空); if(! password.equals(confirm) throw new PasswordException(确认密码不一致); /检查nick if(nick =null | nick.trim().isEmpty() nick = name; String id = UUID.randomUUID().toString(); String token = ; password = DigestUtils.md5Hex(salt+password); U

11、ser user = new User( id, name, password, token, nick); int n = userDao.addUser(user); if(n!=1) throw new RuntimeException(添加失败!); return user; 5. 测试:UserServiceTestUserService service; Before public void initService() service = ctx.getBean(userService, UserService.class); Test public void testRegist

12、() User user = service.regist( Andy, Andy, 123456, 123456); System.out.println(user); 3. 控制器1. 添加控制器方法 UserControllerRequestMapping(/regist.do) ResponseBody public JsonResult regist(String name, String nick, String password, String confirm) User user = userService.regist( name, nick, password, confi

13、rm); return new JsonResult(user); 2. 测试http:/localhost:8080/note/user/regist.do?name=Jerry&nick=AN&password=12345&confirm=12345 4. 添加注册JS脚本1. 更新 log_in.html 取消页面检查js脚本:window.onload=function() var t =setTimeout(get(zc).style.visibility=visible,800); /get(final_password).onblur=function() / var npass

14、word=get(regist_password).value; / var fpassword=get(final_password).value;/ if(npassword!=fpassword) / get(warning_3).style.display=block; / / /get(regist_password).onblur=function() / var npassword=get(regist_password).value.length; / if(npassword0) / get(warning_2).style.display=block; / / /get(r

15、egist_password).onfocus=function() / get(warning_2).style.display=none; / /get(final_password).onfocus=function() / get(warning_3).style.display=none; / 2. 添加注册对话框事件脚本 login.js $(#regist_button).click(registAction); $(#regist_username).blur(checkRegistName); $(#regist_password).blur(checkRegistPassw

16、ord); $(#final_password).blur(checkConfirm); 3. 添加注册对话框数据检验方法:login.js function checkConfirm() var pwd2 = $(#final_password).val(); var pwd = $(#regist_password).val(); /pwd 如果是空值表示 false, 非空则是true if(pwd & pwd=pwd2) $(#final_password).next().hide(); return true; $(#final_password).next().show() .fi

17、nd(span).html(确认密码不一致); return false; function checkRegistPassword() var pwd = $(#regist_password).val().trim(); var rule = /w4,10$/; if(rule.test(pwd) $(#regist_password).next().hide(); return true; $(#regist_password).next().show() .find(span).html(410个字符); return false; function checkRegistName()

18、 var name = $(#regist_username).val().trim(); var rule = /w4,10$/; if(rule.test(name) $(#regist_username).next().hide(); return true; $(#regist_username).next().show() .find(span).html(410字符); return false; 4. 添加注册对话框注册按钮事件方法 login.js function registAction() console.log(registAction); /检验界面参数 var n

19、= checkRegistName() + checkRegistPassword() + checkConfirm(); if(n!=3) return ; /获取界面中表单数据 var name = $(#regist_username).val().trim(); var nick = $(#nickname).val(); var password = $(#regist_password).val(); var confirm = $(#final_password).val(); /发起AJAX请求 var url = user/regist.do; var data = name

20、:name, nick:nick, password:password, confirm:confirm; /console.log(data); / $.post 是 $.ajax的简化版 $.post(url, data, function(result) console.log(result); if(result.state=0) /退回登录界面 $(#back).click(); var name = result.data.name; $(#count).val(name); $(#password).focus(); /清空表单 $(#regist_username).val()

21、; $(#nickname).val(); $(#regist_password).val(); $(#final_password).val(); elseif(result.state=4) $(#regist_username).next().show() .find(span).html(result.message); else if(result.state=3) $(#regist_password).next().show() .find(span).html(result.message); else alert(result.message); ); /得到响应以后, 更新

22、界面 5. 重构控制器UserController 增加事件处理方法:ExceptionHandler(UserNameException.class) ResponseBody public JsonResult handleUserName( UserNameException e) e.printStackTrace(); return new JsonResult(4,e); 6. 测试.调试工具: 笔记本列表功能原理:1. 持久层1. 添加持久层接口 NotebookDao:public interface NotebookDao ListMap findNotebooksByUse

23、rId( String userId); 2. 添加Mapper文件: NotebookMapper.xmlselect cn_notebook_id as id, cn_notebook_name as name from cn_notebook where cn_user_id = #userId order by cn_notebook_createtime desc 3. 测试:public class NotebookDaoTest extends BaseTest NotebookDao dao; Before public void initDao() dao = ctx.get

24、Bean(notebookDao, NotebookDao.class); Test /select cn_user_id from cn_notebook; public void testFindNotebooksByUserId() String userId=52f9b276-38ee-447f-a3aa-0d54e7a736e4; ListMap list= dao.findNotebooksByUserId(userId); for (Map map : list) System.out.println(map); 提示: 需要先到数据库中获得拥有笔记的用户ID userIdsel

25、ect cn_user_id from cn_notebook; List 封装查询结果:2. 业务层1. 声明业务接口NotebookServicepublic interface NotebookService ListMap listNotebooks(String userId) throws UserNotFoundException; 2. 实现业务接口 NotebookServiceImplService(notebookService) public class NotebookServiceImpl implements NotebookService Resource pr

26、ivate NotebookDao notebookDao; Resource private UserDao userDao; public ListMap listNotebooks(String userId) throws UserNotFoundException if(userId=null | userId.trim().isEmpty() throw new UserNotFoundException(ID不能空); User user = userDao.findUserById(userId); if(user=null) throw new UserNotFoundExc

27、eption(用户不存在); return notebookDao .findNotebooksByUserId(userId); 3. 添加查询方法 UserDaoUser findUserById(String userId); 4. 添加SQL UserMapper select cn_user_id as id, cn_user_name as name, cn_user_password as password, cn_user_token as token, cn_user_nick as nick from cn_user where cn_user_id = #userId 5

28、. 测试:public class NotebookServiceTest extends BaseTest NotebookService service; Before public void initService() service = ctx.getBean(notebookService, NotebookService.class); Test public void testListNotebooks() String userId=52f9b276-38ee-447f-a3aa-0d54e7a736e4; ListMap list= service.listNotebooks

29、(userId); for (Map map : list) System.out.println(map); 笔记本列表3. 控制器1. 添加控制器父类AbstractController, 封装公共的异常处理方法:public abstract class AbstractController /* * 在其他控制器方法执行出现异常时候, 执行 * 异常处理方法 handleException */ ExceptionHandler(Exception.class) ResponseBody public Object handleException( Exception e) e.printStackTrace(); return new JsonRes