├── README.md
├── src
    ├── test
    │   ├── resources
    │   │   ├── local-mysql.properties
    │   │   ├── log4j.properties
    │   │   └── mybatis-config.xml
    │   └── java
    │   │   └── mapper
    │   │       └── StudentMapperTest.java
    ├── main
    │   ├── java
    │   │   ├── mapper
    │   │   │   ├── ClassMapper.java
    │   │   │   └── StudentMapper.java
    │   │   └── entity
    │   │   │   ├── Class.java
    │   │   │   └── StudentEntity.java
    │   └── resources
    │   │   └── mapper
    │   │       ├── ClassMapper.xml
    │   │       └── studentMapper.xml
    ├── class.sql
    ├── classroom.sql
    └── student.sql
├── .gitignore
└── pom.xml


/README.md:
--------------------------------------------------------------------------------
1 | # mybatis-cache-demo
2 | gitchat-一步步学习mybatis缓存-演示代码
3 | 


--------------------------------------------------------------------------------
/src/test/resources/local-mysql.properties:
--------------------------------------------------------------------------------
1 | driver=com.mysql.jdbc.Driver
2 | url=jdbc:mysql://127.0.0.1:3306/demo?useUnicode=true&characterEncoding=utf-8&useSSL=false
3 | username=root
4 | password=123456
5 | 


--------------------------------------------------------------------------------
/src/main/java/mapper/ClassMapper.java:
--------------------------------------------------------------------------------
1 | package mapper;
2 | 
3 | import org.apache.ibatis.annotations.Param;
4 | 
5 | public interface ClassMapper {
6 | 
7 |     public int updateClassName(@Param("name") String className, @Param("id") int id);
8 | }
9 | 


--------------------------------------------------------------------------------
/src/test/resources/log4j.properties:
--------------------------------------------------------------------------------
1 | # Global logging configuration
2 | log4j.rootLogger=ERROR, stdout
3 | # MyBatis logging configuration...
4 | log4j.logger.mapper.StudentMapper=TRACE
5 | log4j.logger.mapper.ClassMapper=TRACE
6 | # Console output...
7 | log4j.appender.stdout=org.apache.log4j.ConsoleAppender
8 | log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
9 | log4j.appender.stdout.layout.ConversionPattern=%5p [%t] - %m%n


--------------------------------------------------------------------------------
/src/main/resources/mapper/ClassMapper.xml:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="UTF-8" ?>
 2 | <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
 3 | <mapper namespace="mapper.ClassMapper">
 4 |     <cache/>
 5 |     <!--<cache-ref namespace="mapper.StudentMapper"/>-->
 6 |     <update id="updateClassName">
 7 |         UPDATE class SET name = #{name} WHERE id = #{id}
 8 |     </update>
 9 | </mapper>
10 | 


--------------------------------------------------------------------------------
/src/main/java/mapper/StudentMapper.java:
--------------------------------------------------------------------------------
 1 | package mapper;
 2 | 
 3 | import org.apache.ibatis.annotations.Param;
 4 | 
 5 | import entity.StudentEntity;
 6 | 
 7 | import java.util.Set;
 8 | 
 9 | public interface StudentMapper {
10 | 
11 | 	public StudentEntity getStudentById(int id);
12 | 
13 | 	public int addStudent(StudentEntity student);
14 | 
15 | 	public int updateStudentName(@Param("name") String name, @Param("id") int id);
16 | 
17 | 	public StudentEntity getStudentByIdWithClassInfo(int id);
18 | }
19 | 


--------------------------------------------------------------------------------
/src/main/java/entity/Class.java:
--------------------------------------------------------------------------------
 1 | package entity;
 2 | 
 3 | public class Class {
 4 | 
 5 | 	private int classId;
 6 | 
 7 | 	private String className;
 8 | 
 9 | 	@Override
10 | 	public String toString() {
11 | 		final StringBuilder sb = new StringBuilder("Class{");
12 | 		sb.append("classId=").append(classId);
13 | 		sb.append(", className='").append(className).append('\'');
14 | 		sb.append('}');
15 | 		return sb.toString();
16 | 	}
17 | 
18 | 	public int getClassId() {
19 | 		return classId;
20 | 	}
21 | 
22 | 	public void setClassId(int classId) {
23 | 		this.classId = classId;
24 | 	}
25 | 
26 | 	public String getClassName() {
27 | 		return className;
28 | 	}
29 | 
30 | 	public void setClassName(String className) {
31 | 		this.className = className;
32 | 	}
33 | }
34 | 


--------------------------------------------------------------------------------
/src/main/resources/mapper/studentMapper.xml:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="UTF-8" ?>
 2 | <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
 3 | <mapper namespace="mapper.StudentMapper">
 4 |     <cache/>
 5 | 
 6 |     <select id="getStudentById" parameterType="int" resultType="entity.StudentEntity">
 7 |         SELECT id,name,age FROM student WHERE id = #{id}
 8 |     </select>
 9 | 
10 |     <select id="getStudentByIdWithClassInfo" parameterType="int" resultType="entity.StudentEntity">
11 |         SELECT  s.id,s.name,s.age,class.name as className
12 |         FROM classroom c
13 |         JOIN student s ON c.student_id = s.id
14 |         JOIN class ON c.class_id = class.id
15 |         WHERE s.id = #{id};
16 |     </select>
17 | 
18 |     <insert id="addStudent" parameterType="entity.StudentEntity" useGeneratedKeys="true" keyProperty="id">
19 |         INSERT INTO student(name,age) VALUES(#{name}, #{age})
20 |     </insert>
21 | 
22 |     <update id="updateStudentName">
23 |         UPDATE student SET name = #{name} WHERE id = #{id}
24 |     </update>
25 | </mapper>
26 | 
27 | 
28 | 
29 | 
30 | 
31 | 
32 | 
33 | 
34 | 


--------------------------------------------------------------------------------
/.gitignore:
--------------------------------------------------------------------------------
 1 | # Created by .ignore support plugin (hsz.mobi)
 2 | ### JetBrains template
 3 | # Covers JetBrains IDEs: IntelliJ, RubyMine, PhpStorm, AppCode, PyCharm, CLion, Android Studio and Webstorm
 4 | # Reference: https://intellij-support.jetbrains.com/hc/en-us/articles/206544839
 5 | 
 6 | # User-specific stuff:
 7 | .idea/**/workspace.xml
 8 | .idea/**/tasks.xml
 9 | .idea/dictionaries
10 | 
11 | # Sensitive or high-churn files:
12 | .idea/**/dataSources/
13 | .idea/**/dataSources.ids
14 | .idea/**/dataSources.xml
15 | .idea/**/dataSources.local.xml
16 | .idea/**/sqlDataSources.xml
17 | .idea/**/dynamic.xml
18 | .idea/**/uiDesigner.xml
19 | 
20 | # Gradle:
21 | .idea/**/gradle.xml
22 | .idea/**/libraries
23 | 
24 | # Mongo Explorer plugin:
25 | .idea/**/mongoSettings.xml
26 | 
27 | ## File-based project format:
28 | *.iws
29 | 
30 | ## Plugin-specific files:
31 | 
32 | # IntelliJ
33 | /out/
34 | 
35 | # mpeltonen/sbt-idea plugin
36 | .idea_modules/
37 | 
38 | # JIRA plugin
39 | atlassian-ide-plugin.xml
40 | 
41 | # Crashlytics plugin (for Android Studio and IntelliJ)
42 | com_crashlytics_export_strings.xml
43 | crashlytics.properties
44 | crashlytics-build.properties
45 | fabric.properties
46 | 
47 | /mybatis-cache-demo.iml
48 | /.idea/*
49 | /target/*
50 | /target


--------------------------------------------------------------------------------
/src/main/java/entity/StudentEntity.java:
--------------------------------------------------------------------------------
 1 | package entity;
 2 | 
 3 | import java.io.Serializable;
 4 | 
 5 | public class StudentEntity implements Serializable {
 6 | 
 7 | 	// 学号
 8 | 	private Integer id;
 9 | 
10 | 	// 姓名
11 | 	private String name;
12 | 
13 | 	// 年龄
14 | 	private Integer age;
15 | 
16 | 	// 班级
17 | 	private String className;
18 | 
19 | 	public String getClassName() {
20 | 		return className;
21 | 	}
22 | 
23 | 	public void setClassName(String className) {
24 | 		this.className = className;
25 | 	}
26 | 
27 | 	public Integer getId() {
28 | 		return id;
29 | 	}
30 | 
31 | 	public void setId(Integer id) {
32 | 		this.id = id;
33 | 	}
34 | 
35 | 	public String getName() {
36 | 		return name;
37 | 	}
38 | 
39 | 	public void setName(String name) {
40 | 		this.name = name;
41 | 	}
42 | 
43 | 	public Integer getAge() {
44 | 		return age;
45 | 	}
46 | 
47 | 	public void setAge(Integer age) {
48 | 		this.age = age;
49 | 	}
50 | 
51 | 	@Override
52 | 	public String toString() {
53 | 		final StringBuilder sb = new StringBuilder("StudentEntity{");
54 | 		sb.append("id=").append(id);
55 | 		sb.append(", name='").append(name).append('\'');
56 | 		sb.append(", age=").append(age);
57 | 		sb.append(", className='").append(className).append('\'');
58 | 		sb.append('}');
59 | 		return sb.toString();
60 | 	}
61 | }
62 | 


--------------------------------------------------------------------------------
/pom.xml:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="UTF-8"?>
 2 | <project xmlns="http://maven.apache.org/POM/4.0.0"
 3 |          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 4 |          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 5 |     <modelVersion>4.0.0</modelVersion>
 6 | 
 7 |     <groupId>com.kailuncen.gitchat</groupId>
 8 |     <artifactId>mybatis-cache-demo</artifactId>
 9 |     <version>1.0-SNAPSHOT</version>
10 | 
11 |     <dependencies>
12 |         <dependency>
13 |             <groupId>mysql</groupId>
14 |             <artifactId>mysql-connector-java</artifactId>
15 |             <version>5.1.42</version>
16 |         </dependency>
17 |         <dependency>
18 |             <groupId>org.mybatis</groupId>
19 |             <artifactId>mybatis</artifactId>
20 |             <version>3.4.4</version>
21 |         </dependency>
22 |         <dependency>
23 |             <groupId>junit</groupId>
24 |             <artifactId>junit</artifactId>
25 |             <version>4.12</version>
26 |         </dependency>
27 |         <dependency>
28 |             <groupId>log4j</groupId>
29 |             <artifactId>log4j</artifactId>
30 |             <version>1.2.17</version>
31 |         </dependency>
32 |     </dependencies>
33 | 
34 |     <repositories>
35 |         <repository>
36 |             <id>aliyunmaven</id>
37 |             <url>http://maven.aliyun.com/nexus/content/groups/public/</url>
38 |         </repository>
39 |     </repositories>
40 | 
41 | </project>


--------------------------------------------------------------------------------
/src/test/resources/mybatis-config.xml:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="UTF-8" ?>
 2 | <!DOCTYPE configuration
 3 |         PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
 4 |         "http://mybatis.org/dtd/mybatis-3-config.dtd">
 5 | <configuration>
 6 |     <!--配置文件地址-->
 7 |     <properties resource="local-mysql.properties"/>
 8 | 
 9 |     <settings>
10 |         <setting name="localCacheScope" value="SESSION"/>
11 |         <setting name="cacheEnabled" value="true"/>
12 |         <!--开启驼峰式命名，数据库的列名能够映射到去除下划线驼峰命名后的字段名-->
13 |         <setting name="mapUnderscoreToCamelCase" value="true"/>
14 |         <setting name="logImpl" value="LOG4J"/>
15 |     </settings>
16 | 
17 |     <environments default="development">
18 |         <environment id="development">
19 |             <!--使用默认的JDBC事务管理-->
20 |             <transactionManager type="JDBC"/>
21 |             <!--使用连接池-->
22 |             <dataSource type="POOLED">
23 |                 <!--这里会替换为local-mysql.properties中的对应字段的值-->
24 |                 <property name="driver" value="${driver}"/>
25 |                 <property name="url" value="${url}"/>
26 |                 <property name="username" value="${username}"/>
27 |                 <property name="password" value="${password}"/>
28 |             </dataSource>
29 |         </environment>
30 |     </environments>
31 | 
32 |     <!--SQL映射文件,mybatis的核心-->
33 |     <mappers>
34 |         <mapper resource="mapper/studentMapper.xml"/>
35 |         <mapper resource="mapper/classMapper.xml"/>
36 |     </mappers>
37 | </configuration>
38 | 


--------------------------------------------------------------------------------
/src/class.sql:
--------------------------------------------------------------------------------
 1 | -- MySQL dump 10.13  Distrib 5.7.15, for osx10.11 (x86_64)
 2 | --
 3 | -- Host: 127.0.0.1    Database: demo
 4 | -- ------------------------------------------------------
 5 | -- Server version	5.7.15
 6 | 
 7 | /*!40101 SET @OLD_CHARACTER_SET_CLIENT=@@CHARACTER_SET_CLIENT */;
 8 | /*!40101 SET @OLD_CHARACTER_SET_RESULTS=@@CHARACTER_SET_RESULTS */;
 9 | /*!40101 SET @OLD_COLLATION_CONNECTION=@@COLLATION_CONNECTION */;
10 | /*!40101 SET NAMES utf8 */;
11 | /*!40103 SET @OLD_TIME_ZONE=@@TIME_ZONE */;
12 | /*!40103 SET TIME_ZONE='+00:00' */;
13 | /*!40014 SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0 */;
14 | /*!40014 SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0 */;
15 | /*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='NO_AUTO_VALUE_ON_ZERO' */;
16 | /*!40111 SET @OLD_SQL_NOTES=@@SQL_NOTES, SQL_NOTES=0 */;
17 | 
18 | --
19 | -- Table structure for table `class`
20 | --
21 | 
22 | DROP TABLE IF EXISTS `class`;
23 | /*!40101 SET @saved_cs_client     = @@character_set_client */;
24 | /*!40101 SET character_set_client = utf8 */;
25 | CREATE TABLE `class` (
26 |   `id` int(11) unsigned NOT NULL AUTO_INCREMENT,
27 |   `name` varchar(20) COLLATE utf8_bin DEFAULT NULL,
28 |   PRIMARY KEY (`id`)
29 | ) ENGINE=InnoDB AUTO_INCREMENT=3 DEFAULT CHARSET=utf8 COLLATE=utf8_bin;
30 | /*!40101 SET character_set_client = @saved_cs_client */;
31 | 
32 | --
33 | -- Dumping data for table `class`
34 | --
35 | 
36 | LOCK TABLES `class` WRITE;
37 | /*!40000 ALTER TABLE `class` DISABLE KEYS */;
38 | INSERT INTO `class` (`id`, `name`) VALUES (1,'一班'),(2,'二班');
39 | /*!40000 ALTER TABLE `class` ENABLE KEYS */;
40 | UNLOCK TABLES;
41 | /*!40103 SET TIME_ZONE=@OLD_TIME_ZONE */;
42 | 
43 | /*!40101 SET SQL_MODE=@OLD_SQL_MODE */;
44 | /*!40014 SET FOREIGN_KEY_CHECKS=@OLD_FOREIGN_KEY_CHECKS */;
45 | /*!40014 SET UNIQUE_CHECKS=@OLD_UNIQUE_CHECKS */;
46 | /*!40101 SET CHARACTER_SET_CLIENT=@OLD_CHARACTER_SET_CLIENT */;
47 | /*!40101 SET CHARACTER_SET_RESULTS=@OLD_CHARACTER_SET_RESULTS */;
48 | /*!40101 SET COLLATION_CONNECTION=@OLD_COLLATION_CONNECTION */;
49 | /*!40111 SET SQL_NOTES=@OLD_SQL_NOTES */;
50 | 
51 | -- Dump completed on 2017-06-30 14:43:55
52 | 


--------------------------------------------------------------------------------
/src/classroom.sql:
--------------------------------------------------------------------------------
 1 | -- MySQL dump 10.13  Distrib 5.7.15, for osx10.11 (x86_64)
 2 | --
 3 | -- Host: 127.0.0.1    Database: demo
 4 | -- ------------------------------------------------------
 5 | -- Server version	5.7.15
 6 | 
 7 | /*!40101 SET @OLD_CHARACTER_SET_CLIENT=@@CHARACTER_SET_CLIENT */;
 8 | /*!40101 SET @OLD_CHARACTER_SET_RESULTS=@@CHARACTER_SET_RESULTS */;
 9 | /*!40101 SET @OLD_COLLATION_CONNECTION=@@COLLATION_CONNECTION */;
10 | /*!40101 SET NAMES utf8 */;
11 | /*!40103 SET @OLD_TIME_ZONE=@@TIME_ZONE */;
12 | /*!40103 SET TIME_ZONE='+00:00' */;
13 | /*!40014 SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0 */;
14 | /*!40014 SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0 */;
15 | /*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='NO_AUTO_VALUE_ON_ZERO' */;
16 | /*!40111 SET @OLD_SQL_NOTES=@@SQL_NOTES, SQL_NOTES=0 */;
17 | 
18 | --
19 | -- Table structure for table `classroom`
20 | --
21 | 
22 | DROP TABLE IF EXISTS `classroom`;
23 | /*!40101 SET @saved_cs_client     = @@character_set_client */;
24 | /*!40101 SET character_set_client = utf8 */;
25 | CREATE TABLE `classroom` (
26 |   `id` int(11) unsigned NOT NULL AUTO_INCREMENT,
27 |   `class_id` int(11) DEFAULT NULL,
28 |   `student_id` int(11) DEFAULT NULL,
29 |   PRIMARY KEY (`id`)
30 | ) ENGINE=InnoDB AUTO_INCREMENT=5 DEFAULT CHARSET=utf8 COLLATE=utf8_bin;
31 | /*!40101 SET character_set_client = @saved_cs_client */;
32 | 
33 | --
34 | -- Dumping data for table `classroom`
35 | --
36 | 
37 | LOCK TABLES `classroom` WRITE;
38 | /*!40000 ALTER TABLE `classroom` DISABLE KEYS */;
39 | INSERT INTO `classroom` (`id`, `class_id`, `student_id`) VALUES (1,1,1),(2,1,2),(3,2,3),(4,2,4);
40 | /*!40000 ALTER TABLE `classroom` ENABLE KEYS */;
41 | UNLOCK TABLES;
42 | /*!40103 SET TIME_ZONE=@OLD_TIME_ZONE */;
43 | 
44 | /*!40101 SET SQL_MODE=@OLD_SQL_MODE */;
45 | /*!40014 SET FOREIGN_KEY_CHECKS=@OLD_FOREIGN_KEY_CHECKS */;
46 | /*!40014 SET UNIQUE_CHECKS=@OLD_UNIQUE_CHECKS */;
47 | /*!40101 SET CHARACTER_SET_CLIENT=@OLD_CHARACTER_SET_CLIENT */;
48 | /*!40101 SET CHARACTER_SET_RESULTS=@OLD_CHARACTER_SET_RESULTS */;
49 | /*!40101 SET COLLATION_CONNECTION=@OLD_COLLATION_CONNECTION */;
50 | /*!40111 SET SQL_NOTES=@OLD_SQL_NOTES */;
51 | 
52 | -- Dump completed on 2017-06-30 14:44:05
53 | 


--------------------------------------------------------------------------------
/src/student.sql:
--------------------------------------------------------------------------------
 1 | -- MySQL dump 10.13  Distrib 5.7.15, for osx10.11 (x86_64)
 2 | --
 3 | -- Host: 127.0.0.1    Database: demo
 4 | -- ------------------------------------------------------
 5 | -- Server version	5.7.15
 6 | 
 7 | /*!40101 SET @OLD_CHARACTER_SET_CLIENT=@@CHARACTER_SET_CLIENT */;
 8 | /*!40101 SET @OLD_CHARACTER_SET_RESULTS=@@CHARACTER_SET_RESULTS */;
 9 | /*!40101 SET @OLD_COLLATION_CONNECTION=@@COLLATION_CONNECTION */;
10 | /*!40101 SET NAMES utf8 */;
11 | /*!40103 SET @OLD_TIME_ZONE=@@TIME_ZONE */;
12 | /*!40103 SET TIME_ZONE='+00:00' */;
13 | /*!40014 SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0 */;
14 | /*!40014 SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0 */;
15 | /*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='NO_AUTO_VALUE_ON_ZERO' */;
16 | /*!40111 SET @OLD_SQL_NOTES=@@SQL_NOTES, SQL_NOTES=0 */;
17 | 
18 | --
19 | -- Table structure for table `student`
20 | --
21 | 
22 | DROP TABLE IF EXISTS `student`;
23 | /*!40101 SET @saved_cs_client     = @@character_set_client */;
24 | /*!40101 SET character_set_client = utf8 */;
25 | CREATE TABLE `student` (
26 |   `id` int(11) unsigned NOT NULL AUTO_INCREMENT,
27 |   `name` varchar(200) COLLATE utf8_bin DEFAULT NULL,
28 |   `age` tinyint(3) unsigned DEFAULT NULL,
29 |   PRIMARY KEY (`id`)
30 | ) ENGINE=InnoDB AUTO_INCREMENT=8 DEFAULT CHARSET=utf8 COLLATE=utf8_bin;
31 | /*!40101 SET character_set_client = @saved_cs_client */;
32 | 
33 | --
34 | -- Dumping data for table `student`
35 | --
36 | 
37 | LOCK TABLES `student` WRITE;
38 | /*!40000 ALTER TABLE `student` DISABLE KEYS */;
39 | INSERT INTO `student` (`id`, `name`, `age`) VALUES (1,'点点',16),(2,'平平',16),(3,'美美',16),(4,'团团',16);
40 | /*!40000 ALTER TABLE `student` ENABLE KEYS */;
41 | UNLOCK TABLES;
42 | /*!40103 SET TIME_ZONE=@OLD_TIME_ZONE */;
43 | 
44 | /*!40101 SET SQL_MODE=@OLD_SQL_MODE */;
45 | /*!40014 SET FOREIGN_KEY_CHECKS=@OLD_FOREIGN_KEY_CHECKS */;
46 | /*!40014 SET UNIQUE_CHECKS=@OLD_UNIQUE_CHECKS */;
47 | /*!40101 SET CHARACTER_SET_CLIENT=@OLD_CHARACTER_SET_CLIENT */;
48 | /*!40101 SET CHARACTER_SET_RESULTS=@OLD_CHARACTER_SET_RESULTS */;
49 | /*!40101 SET COLLATION_CONNECTION=@OLD_COLLATION_CONNECTION */;
50 | /*!40111 SET SQL_NOTES=@OLD_SQL_NOTES */;
51 | 
52 | -- Dump completed on 2017-06-30 14:44:13
53 | 


--------------------------------------------------------------------------------
/src/test/java/mapper/StudentMapperTest.java:
--------------------------------------------------------------------------------
  1 | package mapper;
  2 | 
  3 | import entity.StudentEntity;
  4 | import org.apache.ibatis.io.Resources;
  5 | import org.apache.ibatis.session.SqlSession;
  6 | import org.apache.ibatis.session.SqlSessionFactory;
  7 | import org.apache.ibatis.session.SqlSessionFactoryBuilder;
  8 | import org.junit.Assert;
  9 | import org.junit.Before;
 10 | import org.junit.Test;
 11 | 
 12 | import java.io.IOException;
 13 | 
 14 | import static org.junit.Assert.*;
 15 | 
 16 | public class StudentMapperTest {
 17 | 
 18 |     private SqlSessionFactory factory;
 19 | 
 20 |     @Before
 21 |     public void setUp() throws Exception {
 22 |         factory = new SqlSessionFactoryBuilder().build(Resources.getResourceAsReader("mybatis-config.xml"));
 23 | 
 24 |     }
 25 | 
 26 |     @Test
 27 |     public void showDefaultCacheConfiguration() {
 28 |         System.out.println("本地缓存范围: " + factory.getConfiguration().getLocalCacheScope());
 29 |         System.out.println("二级缓存是否被启用: " + factory.getConfiguration().isCacheEnabled());
 30 |     }
 31 | 
 32 |     /**
 33 |      *   <setting name="localCacheScope" value="SESSION"/>
 34 |      *   <setting name="cacheEnabled" value="true"/>
 35 |      * @throws Exception
 36 |      */
 37 |     @Test
 38 |     public void testLocalCache() throws Exception {
 39 |         SqlSession sqlSession = factory.openSession(true); // 自动提交事务
 40 |         StudentMapper studentMapper = sqlSession.getMapper(StudentMapper.class);
 41 | 
 42 |         System.out.println(studentMapper.getStudentById(1));
 43 |         System.out.println(studentMapper.getStudentById(1));
 44 |         System.out.println(studentMapper.getStudentById(1));
 45 | 
 46 |         sqlSession.close();
 47 |     }
 48 | 
 49 |     /**
 50 |      *  <setting name="localCacheScope" value="SESSION"/>
 51 |      *  <setting name="cacheEnabled" value="true"/>
 52 |      * @throws Exception
 53 |      */
 54 |     @Test
 55 |     public void testLocalCacheClear() throws Exception {
 56 |         SqlSession sqlSession = factory.openSession(true); // 自动提交事务
 57 |         StudentMapper studentMapper = sqlSession.getMapper(StudentMapper.class);
 58 | 
 59 |         System.out.println(studentMapper.getStudentById(1));
 60 |         System.out.println("增加了" + studentMapper.addStudent(buildStudent()) + "个学生");
 61 |         System.out.println(studentMapper.getStudentById(1));
 62 | 
 63 |         sqlSession.close();
 64 |     }
 65 | 
 66 |     /**
 67 |      *   <setting name="localCacheScope" value="SESSION"/>
 68 |      *   <setting name="cacheEnabled" value="true"/>
 69 |      * @throws Exception
 70 |      */
 71 |     @Test
 72 |     public void testLocalCacheScope() throws Exception {
 73 |         SqlSession sqlSession1 = factory.openSession(true); // 自动提交事务
 74 |         SqlSession sqlSession2 = factory.openSession(true); // 自动提交事务
 75 | 
 76 |        StudentMapper studentMapper = sqlSession1.getMapper(StudentMapper.class);
 77 |        StudentMapper studentMapper2 = sqlSession2.getMapper(StudentMapper.class);
 78 | 
 79 |         System.out.println("studentMapper读取数据: " + studentMapper.getStudentById(1));
 80 |         System.out.println("studentMapper读取数据: " + studentMapper.getStudentById(1));
 81 |         System.out.println("studentMapper2更新了" + studentMapper2.updateStudentName("小岑",1) + "个学生的数据");
 82 |         System.out.println("studentMapper读取数据: " + studentMapper.getStudentById(1));
 83 |         System.out.println("studentMapper2读取数据: " + studentMapper2.getStudentById(1));
 84 | 
 85 |     }
 86 | 
 87 | 
 88 |     private StudentEntity buildStudent(){
 89 |         StudentEntity studentEntity = new StudentEntity();
 90 |         studentEntity.setName("明明");
 91 |         studentEntity.setAge(20);
 92 |         return studentEntity;
 93 |     }
 94 | 
 95 |     /**
 96 |      *  <setting name="localCacheScope" value="SESSION"/>
 97 |      *  <setting name="cacheEnabled" value="true"/>
 98 |      * @throws Exception
 99 |      */
100 |     @Test
101 |     public void testCacheWithoutCommitOrClose() throws Exception {
102 |         SqlSession sqlSession1 = factory.openSession(true); // 自动提交事务
103 |         SqlSession sqlSession2 = factory.openSession(true); // 自动提交事务
104 | 
105 |         StudentMapper studentMapper = sqlSession1.getMapper(StudentMapper.class);
106 |         StudentMapper studentMapper2 = sqlSession2.getMapper(StudentMapper.class);
107 | 
108 |         System.out.println("studentMapper读取数据: " + studentMapper.getStudentById(1));
109 |         System.out.println("studentMapper2读取数据: " + studentMapper2.getStudentById(1));
110 | 
111 |     }
112 | 
113 |     /**
114 |      *  <setting name="localCacheScope" value="SESSION"/>
115 |      *  <setting name="cacheEnabled" value="true"/>
116 |      * @throws Exception
117 |      */
118 |     @Test
119 |     public void testCacheWithCommitOrClose() throws Exception {
120 |         SqlSession sqlSession1 = factory.openSession(true); // 自动提交事务
121 |         SqlSession sqlSession2 = factory.openSession(true); // 自动提交事务
122 | 
123 |         StudentMapper studentMapper = sqlSession1.getMapper(StudentMapper.class);
124 |         StudentMapper studentMapper2 = sqlSession2.getMapper(StudentMapper.class);
125 | 
126 |         System.out.println("studentMapper读取数据: " + studentMapper.getStudentById(1));
127 |         sqlSession1.close();
128 |         System.out.println("studentMapper2读取数据: " + studentMapper2.getStudentById(1));
129 | 
130 |     }
131 | 
132 |     /**
133 |      *  <setting name="localCacheScope" value="SESSION"/>
134 |      *  <setting name="cacheEnabled" value="true"/>
135 |      * @throws Exception
136 |      */
137 |     @Test
138 |     public void testCacheWithUpdate() throws Exception {
139 |         SqlSession sqlSession1 = factory.openSession(true); // 自动提交事务
140 |         SqlSession sqlSession2 = factory.openSession(true); // 自动提交事务
141 |         SqlSession sqlSession3 = factory.openSession(true); // 自动提交事务
142 | 
143 | 
144 |         StudentMapper studentMapper = sqlSession1.getMapper(StudentMapper.class);
145 |         StudentMapper studentMapper2 = sqlSession2.getMapper(StudentMapper.class);
146 |         StudentMapper studentMapper3 = sqlSession3.getMapper(StudentMapper.class);
147 | 
148 | 
149 |         System.out.println("studentMapper读取数据: " + studentMapper.getStudentById(1));
150 |         sqlSession1.close();
151 |         System.out.println("studentMapper2读取数据: " + studentMapper2.getStudentById(1));
152 | 
153 |         studentMapper3.updateStudentName("方方",1);
154 |         sqlSession3.commit();
155 |         System.out.println("studentMapper2读取数据: " + studentMapper2.getStudentById(1));
156 |     }
157 | 
158 |     /**
159 |      *  <setting name="localCacheScope" value="SESSION"/>
160 |      *  <setting name="cacheEnabled" value="true"/>
161 |      * @throws Exception
162 |      */
163 |     @Test
164 |     public void testCacheWithDiffererntNamespace() throws Exception {
165 |         SqlSession sqlSession1 = factory.openSession(true); // 自动提交事务
166 |         SqlSession sqlSession2 = factory.openSession(true); // 自动提交事务
167 |         SqlSession sqlSession3 = factory.openSession(true); // 自动提交事务
168 | 
169 | 
170 |         StudentMapper studentMapper = sqlSession1.getMapper(StudentMapper.class);
171 |         StudentMapper studentMapper2 = sqlSession2.getMapper(StudentMapper.class);
172 |         ClassMapper classMapper = sqlSession3.getMapper(ClassMapper.class);
173 | 
174 | 
175 |         System.out.println("studentMapper读取数据: " + studentMapper.getStudentByIdWithClassInfo(1));
176 |         sqlSession1.close();
177 | 
178 |         System.out.println("studentMapper2读取数据: " + studentMapper2.getStudentByIdWithClassInfo(1));
179 | 
180 |         classMapper.updateClassName("特色一班",1);
181 |         sqlSession3.commit();
182 | 
183 |         System.out.println("studentMapper2读取数据: " + studentMapper2.getStudentByIdWithClassInfo(1));
184 |     }
185 | 
186 |     /**
187 |      *  <setting name="localCacheScope" value="SESSION"/>
188 |      *  <setting name="cacheEnabled" value="true"/>
189 |      * @throws Exception
190 |      */
191 |     @Test
192 |     public void testCacheWithDiffererntNamespaceWithCacheRef() throws Exception {
193 |         SqlSession sqlSession1 = factory.openSession(true); // 自动提交事务
194 |         SqlSession sqlSession2 = factory.openSession(true); // 自动提交事务
195 |         SqlSession sqlSession3 = factory.openSession(true); // 自动提交事务
196 | 
197 | 
198 |         StudentMapper studentMapper = sqlSession1.getMapper(StudentMapper.class);
199 |         StudentMapper studentMapper2 = sqlSession2.getMapper(StudentMapper.class);
200 |         ClassMapper classMapper = sqlSession3.getMapper(ClassMapper.class);
201 | 
202 | 
203 |         System.out.println("studentMapper读取数据: " + studentMapper.getStudentByIdWithClassInfo(1));
204 |         sqlSession1.close();
205 | 
206 |         System.out.println("studentMapper2读取数据: " + studentMapper2.getStudentByIdWithClassInfo(1));
207 | 
208 |         classMapper.updateClassName("特色一班",1);
209 |         sqlSession3.commit();
210 | 
211 |         System.out.println("studentMapper2读取数据: " + studentMapper2.getStudentByIdWithClassInfo(1));
212 |     }
213 | 
214 | 
215 | }


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