myshop 概述
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
项目结构
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
basedao
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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
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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
baseservice
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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
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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
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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
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@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
basecontroller定义了通用的列表页、表单页、删除操作的跳转
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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
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@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(); } } |
总结
以上所述是小编给大家介绍的 spring + springmvc + mybatis 开发java单体应用，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对网站的支持！
原文链接：https://www.cnblogs.com/yehuabin/p/9993497.html
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