maven构建MyBatis项目

2. 修改pom.xml，添加MyBatis依赖

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1. <project xmlns="http://maven.apache.org/POM/4.0.0"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
2. xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
3. <modelVersion>4.0.0</modelVersion>
4. <groupId>com.deppon.demo</groupId>
5. <artifactId>test05</artifactId>
6. <packaging>war</packaging>
7. <version>0.0.1-SNAPSHOT</version>
8. <name>test05 Maven Webapp</name>
9. <url>http://maven.apache.org</url>
11. <!-- 属性配置 -->
12. <properties>
13. <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
14. </properties>
16. <dependencies>
17. <dependency>
18. <groupId>junit</groupId>
19. <artifactId>junit</artifactId>
20. <version>4.10</version>
21. <scope>test</scope>
22. </dependency>
24. <!-- 添加MyBatis依赖 -->
25. <dependency>
26. <groupId>org.mybatis</groupId>
27. <artifactId>mybatis</artifactId>
28. <version>3.1.1</version>
29. </dependency>
31. <dependency>
32. <groupId>log4j</groupId>
33. <artifactId>log4j</artifactId>
34. <version>1.2.16</version>
35. </dependency>
37. <dependency>
38. <groupId>org.slf4j</groupId>
39. <artifactId>slf4j-api</artifactId>
40. <version>1.6.1</version>
41. </dependency>
43. <dependency>
44. <groupId>org.slf4j</groupId>
45. <artifactId>slf4j-nop</artifactId>
46. <version>1.6.4</version>
47. </dependency>
49. </dependencies>
51. <build>
52. <finalName>test05</finalName>
53. </build>
54. </project>

3. 添加mybatis-config.xml

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1. <?xml version="1.0" encoding="UTF-8" ?>
3. <!DOCTYPE configuration
4. PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
5. "http://mybatis.org/dtd/mybatis-3-config.dtd">
7. <configuration>
8. <!-- 全局别名设置，在映射文件中只需写别名，而不必写出整个类路径 -->
9. <typeAliases>
10. <typeAlias type="com.deppon.test05.entity.PersonEntity"alias="PersonEntity"/>
11. </typeAliases>
13. <environments default="development">
14. <environment id="development">
15. <transactionManager type="JDBC" />
16. <dataSource type="POOLED">
17. <property name="driver"value="com.microsoft.sqlserver.jdbc.SQLServerDriver" />
18. <property name="url"value="jdbc:sqlserver://localhost:1433;DatabaseName=Demo" />
19. <property name="username" value="ygy" />
20. <property name="password" value="shishi" />
21. </dataSource>
22. </environment>
23. </environments>
25. <mappers>
26. <mapper resource="com/deppon/test05/mapper/PersonEntityMapper.xml" />
27. </mappers>
29. </configuration>

PersonEntityMapper.xml

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1. <?xml version="1.0" encoding="UTF-8" ?>
2. <!DOCTYPE mapper
3. PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
4. "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
6. <mapper namespace="com.deppon.test05.mapper.PersonEntityMapper">
8. <!-- 查询所有用户 -->
9. <select id="queryAll" resultType="PersonEntity" >
10. select * from t_person
11. </select>
13. <!-- 插入一条记录 -->
14. <insert id="insert" parameterType="PersonEntity">
15. insert into t_person(id , name) values(#{id} , #{name})
16. </insert>
18. </mapper>

IPersonEntityDao.java

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1. package com.deppon.test05.dao;
3. import java.util.List;
5. import com.deppon.test05.entity.PersonEntity;
7. public interface IPersonEntityDao {
8. /**
9. * 插入一条记录
10. * @param person
11. */
12. public void insert(PersonEntity person);
14. /**
15. * 查询所有记录
16. * @return
17. */
18. public List<PersonEntity> queryAll();
19. }

PersonEntityDao.java

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1. package com.deppon.test05.dao.impl;
3. import java.util.List;
5. import org.apache.ibatis.session.SqlSession;
7. import com.deppon.test05.dao.IPersonEntityDao;
8. import com.deppon.test05.entity.PersonEntity;
9. import com.deppon.test05.util.MyBatisUtil;
11. public class PersonEntityDao implements IPersonEntityDao {
12. public static final String NAMESPACE ="com.deppon.test05.mapper.PersonEntityMapper";
14. @Override
15. public void insert(PersonEntity person) {
16. SqlSession session = MyBatisUtil.getSession();
17. session.insert(NAMESPACE + ".insert" , person);
19. session.commit();
20. session.close();
21. }
23. @Override
24. public List<PersonEntity> queryAll() {
25. SqlSession session = MyBatisUtil.getSession();
26. List<PersonEntity> personList = session.selectList(NAMESPACE +".queryAll");
29. session.commit();
30. session.close();
32. return personList;
33. }
35. }

PersonEntity.java

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1. package com.deppon.test05.entity;
3. public class PersonEntity implements java.io.Serializable {
4. private static final long serialVersionUID = -1138245964662330288L;
6. private Integer id;
7. private String name;
9. public Integer getId() {
10. return id;
11. }
13. public void setId(Integer id) {
14. this.id = id;
15. }
17. public String getName() {
18. return name;
19. }
21. public void setName(String name) {
22. this.name = name;
23. }
25. @Override
26. public String toString() {
27. return "PersonEntity [id=" + id + ", name=" + name + "]";
28. }
30. }

MyBatisUtil.java

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1. package com.deppon.test05.util;
3. import java.io.IOException;
4. import java.io.InputStream;
6. import org.apache.ibatis.io.Resources;
7. import org.apache.ibatis.session.SqlSession;
8. import org.apache.ibatis.session.SqlSessionFactory;
9. import org.apache.ibatis.session.SqlSessionFactoryBuilder;
11. public class MyBatisUtil {
12. private static SqlSessionFactory factory = null;
14. private static void initialFactory() {
15. String resource = "mybatis-config.xml";
16. try {
17. InputStream in = Resources.getResourceAsStream(resource);
18. factory = new SqlSessionFactoryBuilder().build(in);
19. } catch (IOException e) {
20. e.printStackTrace();
21. }
23. }
25. public static SqlSession getSession() {
26. if(factory == null) {
27. initialFactory();
28. }
30. return factory.openSession();
31. }
32. }

测试程序：

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1. package com.deppon.test05.dao;
3. import java.util.List;
5. import org.junit.Before;
6. import org.junit.Test;
8. import com.deppon.test05.dao.impl.PersonEntityDao;
9. import com.deppon.test05.entity.PersonEntity;
11. public class PersonEntityDaoTest {
12. private IPersonEntityDao personEntityDao;
14. @Before
15. public void before() {
16. personEntityDao = new PersonEntityDao();
17. }
19. @Test
20. public void testQueryAll() {
21. List<PersonEntity> personList = personEntityDao.queryAll();
23. for(PersonEntity each : personList) {
24. System.out.println(each);
25. }
26. }
28. @Test
29. public void testInsert() {
30. PersonEntity person = new PersonEntity();
31. person.setId(200);
32. person.setName("乔巴");
34. personEntityDao.insert(person);
35. }
36. }

项目结构如下图所示：

注意：记得那两条命令哦，亲（前面的博客有）

结果: