myshop 概述
myshop項目是根據視頻教程 java 單體應用 做的一個練習項目，目前完成了登錄功能、用戶管理、類別管理后續有時間會繼續做其它的功能。趁著雙11花了99元一年買了臺阿里云服務器，演示地址>> myshop
項目地址 https://gitee.com/yehuabin/myshop
項目結構
my-shop-dependencies：管理jar包的版本，所有項目依賴此項目
my-shop-commons：項目通用工具、實體類
my-shop-domain: pojo類，對于數據庫一張表
my-shop-web-admin：后臺管理功能
my-shop-web-api、my-shop-web-ui：商城前端展示部分，目前還沒開發
basedao
|
1
2
3
4
5
6
|
public interface basedao<t> { int create(t model); int update(t model); int delete(int id); t getbyid(int id);} |
basedao定義了通用的數據操作接口其它具體的操作接口都繼承該dao
|
1
2
3
4
5
|
public interface tbuserdao extends basedao<tbuser> { tbuser getbyusernameandpasswrod(map<string,string> param); list<tbuser> getbypage(pagequery<tbuserquery> pagequery); int getcount(pagequery<tbuserquery> pagequery);} |
tbuserdao繼承basedao并定義了自己特有的一些接口
baseservice
|
1
2
3
4
5
6
|
public interface baseservice<t extends baseentity> { baseresult create(t model); t getbyid(int id); baseresult update(t model); baseresult delete(int id);} |
baseservice定義通用的服務接口，t 就是某個具體的domain對象
然后給這個通用服務接口定義一個通用的實現 baseserviceimpl。實現通用的crud
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
|
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),"新增失敗"); } 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),"更新失敗"); } public baseresult delete(int id) { return getbaseresult(dao.delete(id),"刪除失敗"); } private baseresult getbaseresult(int row,string error){ baseresult baseresult = baseresult.success(); if(row<=0){ baseresult=baseresult.fail(error); } return baseresult; }} |
用戶服務繼承baseservice并擴展了兩個方法
|
1
2
3
4
|
public interface userservice extends baseservice<tbuser> { pageresult<tbuser> getbypage(pagequery<tbuserquery> pagequery); tbuser login(string username, string password);} |
用戶服務的具體實現
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
|
@servicepublic class userserviceimpl extends baseserviceimpl<tbuser,tbuserdao> implements userservice { @override public baseresult create(tbuser tbuser) { if (stringutils.isblank(tbuser.getpassword())) { return baseresult.fail("密碼不能為空"); } 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定義了通用的列表頁、表單頁、刪除操作的跳轉
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
|
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頁 if (baseresult.issuccess()) { return "redirect:list"; } //失敗顯示錯誤信息 model.addattribute("result", baseresult); return getjsppath()+"/form"; } protected abstract t initformentity(); protected string getjsppath(){ return getclass().getsimplename().tolowercase().replace("controller",""); }} |
任何其它模塊只要繼承basecontroller，就可以自動跳轉到列表、表單、刪除等頁面，可以大大減少代碼量
具體的usercontroller只需要實現特有的業務邏輯就可以
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
|
@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(); }} |
總結
以上所述是小編給大家介紹的spring+springmvc+mybatis 開發java單體應用，希望對大家有所幫助，如果大家有任何疑問請給我留言，小編會及時回復大家的。在此也非常感謝大家對服務器之家網站的支持！
原文鏈接：https://www.cnblogs.com/yehuabin/p/9993497.html
