标签：eth pre dep 错误信息 update getpass hashmap byte erro
myshop项目是根据视频教程 Java 单体应用 做的一个练习项目，目前完成了登录功能、用户管理、类别管理后续有时间会继续做其它的功能。趁着双11花了99元一年买了台阿里云服务器，演示地址>> myshop
项目地址 https://gitee.com/yehuabin/myshop
my-shop-dependencies：管理jar包的版本，所有项目依赖此项目
my-shop-commons：项目通用工具、实体类
my-shop-domain: POJO类，对于数据库一张表
my-shop-web-admin：后台管理功能
my-shop-web-api、my-shop-web-ui：商城前端展示部分，目前还没开发
public interface BaseDao<T> { int create(T model); int update(T model); int delete(int id); T getById(int id); }
BaseDao定义了通用的数据操作接口其它具体的操作接口都继承该dao
public interface TbUserDao extends BaseDao<TbUser> { TbUser getByUserNameAndPasswrod(Map<String,String> param); List<TbUser> getByPage(PageQuery<TbUserQuery> pageQuery); int getCount(PageQuery<TbUserQuery> pageQuery); }
TbUserDao继承BaseDao并定义了自己特有的一些接口
public interface BaseService<T extends BaseEntity> { BaseResult create(T model); T getById(int id); BaseResult update(T model); BaseResult delete(int id); }
BaseService定义通用的服务接口，T 就是某个具体的domain对象
然后给这个通用服务接口定义一个通用的实现 BaseServiceImpl。实现通用的CRUD
public abstract class BaseServiceImpl<T extends BaseEntity,D extends BaseDao<T>> implements BaseService<T> { @Autowired protected D dao; @Override public BaseResult create(T model) { BaseResult baseResult = EntityValidator.validate(model); if (!baseResult.isSuccess()) { return baseResult; } model.setCreated(new Date()); model.setUpdated(new Date()); return getBaseResult(dao.create(model),"新增失败"); } public T getById(int id) { return dao.getById(id); } public BaseResult update(T model) { BaseResult baseResult = EntityValidator.validate(model); if (!baseResult.isSuccess()) { return baseResult; } model.setUpdated(new Date()); return getBaseResult(dao.update(model),"更新失败"); } public BaseResult delete(int id) { return getBaseResult(dao.delete(id),"删除失败"); } private BaseResult getBaseResult(int row,String error){ BaseResult baseResult = BaseResult.success(); if(row<=0){ baseResult=BaseResult.fail(error); } return baseResult; } }
用户服务继承BaseService并扩展了两个方法
public interface UserService extends BaseService<TbUser> { PageResult<TbUser> getByPage(PageQuery<TbUserQuery> pageQuery); TbUser login(String userName, String password); }
用户服务的具体实现
@Service public class UserServiceImpl extends BaseServiceImpl<TbUser,TbUserDao> implements UserService { @Override public BaseResult create(TbUser tbUser) { if (StringUtils.isBlank(tbUser.getPassword())) { return BaseResult.fail("密码不能为空"); } tbUser.setPassword(md5DigestAsHex(tbUser.getPassword())); return super.create(tbUser); } @Override public PageResult<TbUser> getByPage(PageQuery<TbUserQuery> pageQuery) { PageResult<TbUser> result = new PageResult<>(); List<TbUser> list = dao.getByPage(pageQuery); int count=dao.getCount(pageQuery); result.setData(list); result.setRecordsTotal(count); result.setRecordsFiltered(count); return result; } @Override public BaseResult update(TbUser tbUser) { if (StringUtils.isNotBlank(tbUser.getPassword())) { tbUser.setPassword(md5DigestAsHex(tbUser.getPassword())); } return super.update(tbUser); } @Override public TbUser login(String userName, String password) { Map<String, String> param = new HashMap<>(); param.put("userName", userName); param.put("password", md5DigestAsHex(password)); System.out.println(param.get("password")); return dao.getByUserNameAndPasswrod(param); } private String md5DigestAsHex(String password){ return DigestUtils.md5DigestAsHex(password.getBytes()); } }
BaseController定义了通用的列表页、表单页、删除操作的跳转
public abstract class BaseController<T extends BaseEntity,S extends BaseService<T>> { @Autowired protected S service; @ModelAttribute public T getModel(Integer id) { T model=initFormEntity(); if (id != null && id > 0) { model = service.getById(id); } return model; } @RequestMapping("/list") public String list(Model model) { return getJspPath()+"/list"; } @RequestMapping(value = {"/create", "edit"}, method = RequestMethod.GET) public String form() { return getJspPath()+"/form"; } @RequestMapping("/detail") public String detail() { return getJspPath()+"/detail"; } @ResponseBody @RequestMapping("/delete") public BaseResult delete(int id) { return service.delete(id); } @RequestMapping(value = {"/create", "edit"}, method = RequestMethod.POST) public String form(T entity, Model model) { BaseResult baseResult; if (entity.getId() != null && entity.getId() > 0) { baseResult = service.update(entity); } else { baseResult = service.create(entity); } //新增或者修改成功返回列表页 if (baseResult.isSuccess()) { return "redirect:list"; } //失败显示错误信息 model.addAttribute("result", baseResult); return getJspPath()+"/form"; } protected abstract T initFormEntity(); protected String getJspPath(){ return getClass().getSimpleName().toLowerCase().replace("controller",""); } }
任何其它模块只要继承BaseController，就可以自动跳转到列表、表单、删除等页面，可以大大减少代码量
具体的UserController只需要实现特有的业务逻辑就可以
@Controller @RequestMapping("/user") public class UserController extends BaseController<TbUser,UserService> { @ResponseBody @RequestMapping("/page") public PageResult<TbUser> page(PageQuery<TbUserQuery> pageQuery, TbUserQuery query) { pageQuery.setQuery(query); PageResult<TbUser> tbUsers = service.getByPage(pageQuery); return tbUsers; } @Override protected TbUser initFormEntity() { return new TbUser(); } }
spring+springmvc+mybatis 开发JAVA单体应用
标签：eth pre dep 错误信息 update getpass hashmap byte erro
原文地址：https://www.cnblogs.com/yehuabin/p/9993497.html
