Java+Spring+MySql环境中安装和配置MyBatis的教程

/* 建立数据库 */ 
CREATE DATABASE STUDENT_MANAGER; 
USE STUDENT_MANAGER; 
 
/***** 建立student表 *****/ 
CREATE TABLE STUDENT_TBL 
( 
  STUDENT_ID     VARCHAR(255) PRIMARY KEY, 
  STUDENT_NAME    VARCHAR(10) NOT NULL, 
  STUDENT_SEX    VARCHAR(10), 
  STUDENT_BIRTHDAY  DATE, 
  CLASS_ID      VARCHAR(255) 
); 
 
/*插入学生数据*/ 
INSERT INTO STUDENT_TBL (STUDENT_ID, 
             STUDENT_NAME, 
             STUDENT_SEX, 
             STUDENT_BIRTHDAY, 
             CLASS_ID) 
 VALUES  (123456, 
      '某某某', 
      '女', 
      '1980-08-01', 
      121546 
      ) 

jdbc.driverClassName=com.mysql.jdbc.Driver 
jdbc.url=jdbc:mysql://localhost:3306/student_manager?user=root&password=limingnihao&useUnicode=true&characterEncoding=UTF-8 

public class StudentEntity implements Serializable { 
 
  private static final long serialVersionUID = 3096154202413606831L; 
  private ClassEntity classEntity; 
  private Date studentBirthday; 
  private String studentID; 
  private String studentName; 
  private String studentSex; 
   
  public ClassEntity getClassEntity() { 
    return classEntity; 
  } 
 
  public Date getStudentBirthday() { 
    return studentBirthday; 
  } 
 
  public String getStudentID() { 
    return studentID; 
  } 
 
  public String getStudentName() { 
    return studentName; 
  } 
 
  public String getStudentSex() { 
    return studentSex; 
  } 
 
  public void setClassEntity(ClassEntity classEntity) { 
    this.classEntity = classEntity; 
  } 
 
  public void setStudentBirthday(Date studentBirthday) { 
    this.studentBirthday = studentBirthday; 
  } 
 
  public void setStudentID(String studentID) { 
    this.studentID = studentID; 
  } 
 
  public void setStudentName(String studentName) { 
    this.studentName = studentName; 
  } 
 
  public void setStudentSex(String studentSex) { 
    this.studentSex = studentSex; 
  } 
} 

public interface StudentMapper { 
   
  public StudentEntity getStudent(String studentID); 
   
  public StudentEntity getStudentAndClass(String studentID); 
   
  public List<StudentEntity> getStudentAll(); 
   
  public void insertStudent(StudentEntity entity); 
   
  public void deleteStudent(StudentEntity entity); 
   
  public void updateStudent(StudentEntity entity); 
} 

<?xml version="1.0" encoding="UTF-8" ?> 
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd"> 
<mapper namespace="com.manager.data.StudentMapper"> 
 
  <resultMap type="StudentEntity" id="studentResultMap"> 
    <id property="studentID" column="STUDENT_ID"/> 
    <result property="studentName" column="STUDENT_NAME"/> 
    <result property="studentSex" column="STUDENT_SEX"/> 
    <result property="studentBirthday" column="STUDENT_BIRTHDAY"/> 
  </resultMap> 
   
  <!-- 查询学生，根据id --> 
  <select id="getStudent" parameterType="String" resultType="StudentEntity" resultMap="studentResultMap"> 
    <![CDATA[ 
      SELECT * from STUDENT_TBL ST 
        WHERE ST.STUDENT_ID = #{studentID} 
    ]]>  
  </select> 
   
  <!-- 查询学生列表 --> 
  <select id="getStudentAll" resultType="com.manager.data.model.StudentEntity" resultMap="studentResultMap"> 
    <![CDATA[ 
      SELECT * from STUDENT_TBL 
    ]]>  
  </select> 
   
</mapper> 

<?xml version="1.0" encoding="UTF-8" ?> 
<!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN" "http://mybatis.org/dtd/mybatis-3-config.dtd"> 
<configuration> 
  <typeAliases> 
    <typeAlias alias="StudentEntity" type="com.manager.data.model.StudentEntity"/> 
  </typeAliases> 
  <mappers> 
    <mapper resource="com/manager/data/maps/StudentMapper.xml" /> 
  </mappers> 
</configuration>  

<!-- 导入属性配置文件 --> 
<context:property-placeholder location="classpath:mysql.properties" /> 
 
<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource"> 
  <property name="driverClassName" value="${jdbc.driverClassName}" /> 
  <property name="url" value="${jdbc.url}" /> 
</bean> 
 
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> 
  <property name="dataSource" ref="dataSource" /> 
</bean> 
 
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> 
  <property name="configLocation" value="classpath:mybatis-config.xml" /> 
  <property name="dataSource" ref="dataSource" /> 
</bean> 
 
<!— mapper bean --> 
<bean id="studentMapper" class="org.mybatis.spring.MapperFactoryBean"> 
  <property name="mapperInterface" value="com.manager.data.StudentMapper" /> 
  <property name="sqlSessionFactory" ref="sqlSessionFactory" /> 
</bean> 

@Repository 
@Transactional 
public interface StudentMapper { 
} 

<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> 
  <property name="annotationClass" value="org.springframework.stereotype.Repository"/> 
  <property name="basePackage" value="com.liming.manager"/> 
  <property name="sqlSessionFactory" ref="sqlSessionFactory"/> 
</bean> 

@Controller 
public class TestController { 
 
  @Autowired 
  private StudentMapper studentMapper; 
   
  @RequestMapping(value = "index.do") 
  public void indexPage() {   
    StudentEntity entity = studentMapper.getStudent("10000013"); 
    System.out.println("name：" + entity.getStudentName()); 
  }   
} 

@RunWith(value = SpringJUnit4ClassRunner.class) 
@ContextConfiguration(value = "test-servlet.xml") 
public class StudentMapperTest { 
   
  @Autowired 
  private ClassMapper classMapper; 
   
  @Autowired 
  private StudentMapper studentMapper; 
   
  @Transactional 
  public void getStudentTest(){ 
    StudentEntity entity = studentMapper.getStudent("10000013"); 
    System.out.println("" + entity.getStudentID() + entity.getStudentName()); 
     
    List<StudentEntity> studentList = studentMapper.getStudentAll(); 
    for( StudentEntity entityTemp : studentList){ 
      System.out.println(entityTemp.getStudentName()); 
    } 
     
  } 
} 

<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> 
  <property name="configLocation" value="classpath:mybatis-config.xml" /> 
  <property name="dataSource" ref="dataSource" /> 
</bean> 

configuration
|--- properties
|--- settings
|--- typeAliases
|--- typeHandlers
|--- objectFactory
|--- plugins
|--- environments
|--- |--- environment
|--- |--- |--- transactionManager
|--- |--- |__ dataSource
|__ mappers

  <!-- 属性替换 --> 
<properties resource="mysql.properties"> 
  <property name="jdbc.driverClassName" value="com.mysql.jdbc.Driver"/> 
  <property name="jdbc.url" value="jdbc:mysql://localhost:3306/student_manager"/> 
  <property name="username" value="root"/> 
  <property name="password" value="limingnihao"/> 
</properties> 

<settings> 
  <setting name="cacheEnabled" value="true" /> 
  <setting name="lazyLoadingEnabled" value="true" /> 
  <setting name="multipleResultSetsEnabled" value="true" /> 
  <setting name="useColumnLabel" value="true" /> 
  <setting name="useGeneratedKeys" value="false" /> 
  <setting name="enhancementEnabled" value="false" /> 
  <setting name="defaultExecutorType" value="SIMPLE" /> 
</settings> 

<typeAliases> 
  <typeAlias alias="UserEntity" type="com.manager.data.model.UserEntity" /> 
  <typeAlias alias="StudentEntity" type="com.manager.data.model.StudentEntity" /> 
  <typeAlias alias="ClassEntity" type="com.manager.data.model.ClassEntity" /> 
</typeAliases> 

public class LimingStringTypeHandler implements TypeHandler { 
 
  @Override 
  public void setParameter(PreparedStatement ps, int i, Object parameter, JdbcType jdbcType) throws SQLException { 
    System.out.println("setParameter - parameter: " + ((String) parameter) + ", jdbcType: " + jdbcType.TYPE_CODE); 
    ps.setString(i, ((String) parameter)); 
  } 
 
  @Override 
  public Object getResult(ResultSet rs, String columnName) throws SQLException { 
    System.out.println("getResult - columnName: " + columnName); 
    return rs.getString(columnName); 
  } 
 
  @Override 
  public Object getResult(CallableStatement cs, int columnIndex) throws SQLException { 
    System.out.println("getResult - columnIndex: " + columnIndex); 
    return cs.getString(columnIndex); 
  } 
} 

<typeHandlers> 
  <typeHandler javaType="String" jdbcType="VARCHAR" handler="liming.student.manager.type.LimingStringTypeHandler"/> 
</typeHandlers>