Spring与Mybatis使用JavaConfig整合
pom.xml
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0modelVersion>
<groupId>com.springdemogroupId>
<artifactId>spring01artifactId>
<version>0.0.1-SNAPSHOTversion>
<packaging>jarpackaging>
<name>spring01name>
<url>http://maven.apache.orgurl>
<properties>
<spring.version>4.3.8.RELEASEspring.version>
<spring.security.version>4.2.3.RELEASEspring.security.version>
<junit.version>4.12junit.version>
<jdk.version>1.8jdk.version>
<jsp.version>2.2jsp.version>
<servlet.version>3.1.0servlet.version>
<jstl.version>1.2jstl.version>
<slf4j-version>1.7.25slf4j-version>
<hamcrest.core.version>1.3hamcrest.core.version>
<mockito.core.version>2.8.9mockito.core.version>
properties>
<dependencies>
<dependency>
<groupId>junitgroupId>
<artifactId>junitartifactId>
<version>3.8.1version>
<scope>testscope>
dependency>
<dependency>
<groupId>org.hamcrestgroupId>
<artifactId>hamcrest-coreartifactId>
<version>${hamcrest.core.version}version>
<scope>testscope>
dependency>
<dependency>
<groupId>org.mockitogroupId>
<artifactId>mockito-coreartifactId>
<version>${mockito.core.version}version>
<scope>testscope>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-testartifactId>
<version>${spring.version}version>
<scope>testscope>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-coreartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-beansartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-context-supportartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-contextartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-expressionartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-aopartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-aspectsartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-instrumentartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-instrument-tomcatartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-webartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-webmvcartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-webmvcartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.springframework.securitygroupId>
<artifactId>spring-security-webartifactId>
<version>${spring.security.version}version>
dependency>
<dependency>
<groupId>org.springframework.securitygroupId>
<artifactId>spring-security-configartifactId>
<version>${spring.security.version}version>
dependency>
<dependency>
<groupId>javax.servletgroupId>
<artifactId>jstlartifactId>
<version>${jstl.version}version>
dependency>
<dependency>
<groupId>javax.servletgroupId>
<artifactId>javax.servlet-apiartifactId>
<version>${servlet.version}version>
<scope>providedscope>
dependency>
<dependency>
<groupId>javax.servlet.jspgroupId>
<artifactId>jsp-apiartifactId>
<version>${jsp.version}version>
<scope>providedscope>
dependency>
<dependency>
<groupId>javaxgroupId>
<artifactId>javaee-web-apiartifactId>
<version>7.0version>
<scope>providedscope>
dependency>
<dependency>
<groupId>commons-langgroupId>
<artifactId>commons-langartifactId>
<version>2.6version>
dependency>
<dependency>
<groupId>org.freemarkergroupId>
<artifactId>freemarkerartifactId>
<version>2.3.20version>
dependency>
<dependency>
<groupId>org.apache.commonsgroupId>
<artifactId>commons-dbcp2artifactId>
<version>2.1.1version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-jdbcartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>mysqlgroupId>
<artifactId>mysql-connector-javaartifactId>
<version>6.0.6version>
dependency>
<dependency>
<groupId>org.mybatisgroupId>
<artifactId>mybatisartifactId>
<version>3.2.1version>
dependency>
<dependency>
<groupId>org.mybatisgroupId>
<artifactId>mybatis-springartifactId>
<version>1.3.1version>
dependency>
<dependency>
<groupId>org.slf4jgroupId>
<artifactId>slf4j-apiartifactId>
<version>${slf4j-version}version>
dependency>
<dependency>
<groupId>ch.qos.logbackgroupId>
<artifactId>logback-classicartifactId>
<version>1.2.3version>
dependency>
<dependency>
<groupId>com.alibabagroupId>
<artifactId>druidartifactId>
<version>1.1.6version>
dependency>
<dependency>
<groupId>org.mybatisgroupId>
<artifactId>mybatis-springartifactId>
<version>1.3.1version>
dependency>
<dependency>
<groupId>org.mybatisgroupId>
<artifactId>mybatisartifactId>
<version>3.4.5version>
dependency>
dependencies>
<build>
<finalName>spring01finalName>
<plugins>
<plugin>
<groupId>org.apache.maven.pluginsgroupId>
<artifactId>maven-compiler-pluginartifactId>
<version>3.6.1version>
<configuration>
<source>${jdk.version}source>
<target>${jdk.version}target>
configuration>
plugin>
plugins>
build>
project>AppConfig.java
import org.apache.ibatis.session.SqlSessionFactory;
import org.mybatis.spring.SqlSessionFactoryBean;
import org.mybatis.spring.SqlSessionTemplate;
import org.mybatis.spring.mapper.MapperFactoryBean;
import org.springframework.context.annotation.Bean;
import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.jdbc.datasource.DataSourceTransactionManager;
import org.springframework.transaction.annotation.EnableTransactionManagement;
import com.alibaba.druid.pool.DruidDataSource;
import com.springdemo.bean.UserMapper;
@EnableTransactionManagement
public class AppConfig1 {
@Bean
public DruidDataSource dataSource() {
DruidDataSource ds = new DruidDataSource();
ds.setDriverClassName("com.mysql.cj.jdbc.Driver");
ds.setUrl("jdbc:mysql://localhost:3306/test?characterEncoding=utf8&useSSL=true");
ds.setUsername("root");
ds.setPassword("123456@#");
ds.setInitialSize(5);
return ds;
}
@Bean
public DataSourceTransactionManager dataSourceTransactionManager() {
return new DataSourceTransactionManager(dataSource());
}
@Bean
public SqlSessionTemplate sqlSessionTemplate(SqlSessionFactory sqlSessionFactory) {
return new SqlSessionTemplate(sqlSessionFactory);
}
@Bean
public SqlSessionFactory sqlSessionFactory() throws Exception {
SqlSessionFactoryBean sessionFactory = new SqlSessionFactoryBean();
sessionFactory.setDataSource(dataSource());
sessionFactory.setMapperLocations(new PathMatchingResourcePatternResolver().getResources("classpath:com/springdemo/bean/UserMapper.xml"));
sessionFactory.setTypeAliasesPackage("com.springdemo.bean");
return sessionFactory.getObject();
}
@Bean
public UserMapper userMapper(SqlSessionTemplate sqlSessionTemplate) throws Exception {
return sqlSessionTemplate.getMapper(UserMapper.class);
}
}@EnableTransactionManagement注解是为了增加事务的支持
UserMapper.java
import java.util.List;
public interface UserMapper {
public void insert(User user);
public User selectUser(String userName);
public List selectAll();
} UserMapper.xml
<mapper namespace="com.springdemo.bean.UserMapper">
<resultMap type="user" id="userList">
<result column="username" property="username" />
<result column="password" property="password" />
<result column="enabled" property="enabled" />
resultMap>
<insert id="insert" parameterType="user">
insert into users(username,
password,enabled) values(#{username}, #{password},#{enabled})
insert>
<select id="selectUser" parameterType="String" resultType="user">
SELECT * FROM users WHERE username = #{username}
select>
<select id="selectAll" resultMap="userList" resultType="user">
SELECT * FROM users
select>
mapper>User.java
public class User {
private String username;
private String password;
private boolean enabled;
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public boolean isEnabled() {
return enabled;
}
public void setEnabled(boolean enabled) {
this.enabled = enabled;
}
@Override
public String toString() {
return "User [username=" + username + ", password=" + password + ", enabled=" + enabled + "]";
}
}App.java
public class App {
public static void main(String[] args) {
@SuppressWarnings("resource")
ApplicationContext context = new AnnotationConfigApplicationContext(AppConfig.class);
UserMapper userMapper = (UserMapper) context.getBean(UserMapper.class);
System.out.println(userMapper.selectAll());
}
}ps
1、可以使用注解@MapperScan代替
@Bean
public UserMapper userMapper(SqlSessionTemplate sqlSessionTemplate) throws Exception {
return sqlSessionTemplate.getMapper(UserMapper.class);
}自动扫描，就不用一个个接口来添加了。
2、@MapperScan(“com.springdemo.bean”)注解和
@Bean
public MapperScannerConfigurer mapperScannerConfigurer(){
MapperScannerConfigurer mScannerConfigurer = new MapperScannerConfigurer();
mScannerConfigurer.setSqlSessionFactoryBeanName("sqlSessionFactory");
mScannerConfigurer.setBasePackage("com.springdemo.bean");
return mScannerConfigurer;
}可以相互替换。
3、例子是使用接口+xml来实现的，如果是直接使用接口，就不用使用sessionFactory.setMapperLocations方法来设置xml位置了。