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Hibernate的CRUD以及Junit測試
作者:MRbie 發(fā)布時(shí)間:[ 2017/4/26 13:35:21 ] 推薦標(biāo)簽:單元測試 Junit 單元測試工具

1 package com.bie.dao.impl;
2
3 import java.util.List;
4
5 import org.hibernate.Query;
6 import org.hibernate.Session;
7 import org.hibernate.Transaction;
8
9 import com.bie.dao.UserDao;
10 import com.bie.po.User;
11 import com.bie.utils.HibernateUtils;
12
13 /**
14 * @author BieHongLi
15 * @version 創(chuàng)建時(shí)間:2017年3月10日 下午1:35:27
16 *
17 */
18 public class UserDaoImpl implements UserDao{
19
20     @Override
21     public void insertUser(User user) {
22         Session session=null;
23         Transaction tx=null;
24         try {
25             //獲取session
26             session=HibernateUtils.getSession();
27             //開啟事務(wù)
28             tx=session.beginTransaction();
29             //插入即保存
30             session.save(user);
31         } catch (Exception e) {
32             throw new RuntimeException(e);
33         }finally{
34             //提交事務(wù)
35             tx.commit();
36             //關(guān)閉session
37             session.close();
38         }
39
40     }
41
42     @Override
43     public void updateUser(User user) {
44         Session session=null;
45         Transaction tx=null;
46         try {
47             session=HibernateUtils.getSession();
48             tx=session.beginTransaction();
49             session.update(user);
50         } catch (Exception e) {
51             throw new RuntimeException(e);
52         }finally{
53             //提交事務(wù)
54             tx.commit();
55             //關(guān)閉事務(wù)
56             session.close();
57         }
58
59     }
60
61     @Override
62     public User selectUserId(int id) {
63         //獲取session
64         Session session=null;
65         //事務(wù)
66         Transaction tx=null;
67         try {
68             //獲取session
69             session=HibernateUtils.getSession();
70             //開啟事務(wù)
71             tx=session.beginTransaction();
72
73             return (User)session.get(User.class, id);
74         } catch (Exception e) {
75             throw new RuntimeException(e);
76         }finally{
77             //提交事務(wù)
78             tx.commit();
79             //關(guān)閉session
80             session.close();
81         }
82     }
83
84     @Override
85     public List<User> selectAll() {
86         //session
87         Session session=null;
88         //事務(wù)
89         Transaction tx=null;
90         try {
91             //獲取session
92             session=HibernateUtils.getSession();
93             //開啟事務(wù)
94             tx=session.beginTransaction();
95             //HQL語句
96             Query q=session.createQuery("from User");
97
98             List<User> list=q.list();
99             return list;
100         } catch (Exception e) {
101             throw new RuntimeException(e);
102         }finally{
103             //提交事務(wù)
104             tx.commit();
105             //關(guān)閉session
106             session.close();
107         }
108     }
109
110     @Override
111     public List<User> selectAll(String name) {
112         //session
113         Session session=null;
114         //事務(wù)
115         Transaction tx=null;
116         try {
117             //獲取session
118             session=HibernateUtils.getSession();
119             //開啟事務(wù)
120             tx=session.beginTransaction();
121             //HQL語句
122             Query q = session.createQuery("from User user where user.name=? ");
123             //注意:參數(shù)索引從0開始
124             q.setString(0, name);
125
126             return q.list();
127         } catch (Exception e) {
128             throw new RuntimeException();
129         }finally{
130             //提交事務(wù)
131             tx.commit();
132             //關(guān)閉session
133             session.close();
134         }
135     }
136
137     @Override
138     public List<User> selectPage(int index, int count) {
139         //session
140         Session session=null;
141         //事務(wù)
142         Transaction tx=null;
143         try {
144             //獲取session
145             session=HibernateUtils.getSession();
146             //開啟事務(wù)
147             tx=session.beginTransaction();
148             //HQL查詢
149             Query q = session.createQuery("from User ");
150             //設(shè)置分頁參數(shù)
151             q.setFirstResult(index);//查詢起始行
152             q.setMaxResults(count);//查詢返回的行數(shù)
153
154             return q.list();
155         } catch (Exception e) {
156             throw new RuntimeException();
157         }finally{
158             //提交事務(wù)
159             tx.commit();
160             //關(guān)閉session
161             session.close();
162         }
163     }
164
165     @Override
166     public void deleteUser(int id) {
167         Session session=null;
168         Transaction tx=null;
169         try {
170             session=HibernateUtils.getSession();
171             tx=session.beginTransaction();
172             //先根據(jù)id查詢出用戶的信息再刪除
173             Object obj=session.get(User.class, id);
174             if(obj!=null){
175                 session.delete(obj);
176             }
177         } catch (Exception e) {
178             throw new RuntimeException();
179         }finally{
180             //提交事務(wù)
181             tx.commit();
182             //關(guān)閉session
183             session.close();
184         }
185     }
186
187
188 }
  8:后一步,完成測試。源碼如下所示:
1 package com.bie.test;
2
3 import java.util.List;
4
5 import org.junit.Test;
6
7 import com.bie.dao.UserDao;
8 import com.bie.dao.impl.UserDaoImpl;
9 import com.bie.po.User;
10
11 /**
12 * @author BieHongLi
13 * @version 創(chuàng)建時(shí)間:2017年3月10日 下午2:34:48
14 *
15 */
16 public class UserCRUD {
17
18     private UserDao dao=new UserDaoImpl();
19
20     @Test
21     public void insertUser(){
22         dao.insertUser(new User("曹操","111","111111","111111@163.com"));
23
24     }
25
26     @Test
27     public void updateUser(){
28         User user=new User();
29         user.setId(1);
30         user.setName("劉備222");
31
32         dao.updateUser(user);
33     }
34
35     @Test
36     public void deleteUser(){
37         dao.deleteUser(30);
38     }
39
40     @Test
41     public void selectUserId(){
42         //根據(jù)用戶的編號(hào)進(jìn)行查詢
43         User user=dao.selectUserId(1);
44         System.out.println(user);
45     }
46
47     @Test
48     public void selectUser(){
49         //查詢用戶的所有信息
50         List<User> list = dao.selectAll();
51         System.out.println(list);
52     }
53
54     @Test
55     public void selectUserName(){
56         //根據(jù)用戶姓名查詢信息
57         List<User> list=dao.selectAll("李四");
58         System.out.println(list);
59     }
60
61     @Test
62     public void selectPage(){
63         //分頁查詢,第一個(gè)參數(shù)是起始行,第二個(gè)參數(shù)是每頁的個(gè)數(shù)
64         List<User> list=dao.selectPage(0, 5);
65         System.out.println(list);
66     }
67 }
  運(yùn)行效果如下所示:


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