spring boot 整合 mybatis

一、引入依賴

<!-- Spring-Mybatis -->

<dependency>

? ? ?<groupId>org.mybatis.spring.boot</groupId>

? ? ?<artifactId>mybatis-spring-boot-starter</artifactId>

????<version>1.3.0</version>

?</dependency>

<!-- MySQL -->

<dependency>

????<groupId>mysql</groupId>

????<artifactId>mysql-connector-java</artifactId>

</dependency>

<dependency>

? ? ? ? <groupId>org.springframework.boot</groupId>

? ? ? ? <artifactId>spring-boot-starter-web</artifactId>

</dependency>

<!-- data source -->

<dependency>

? ? <groupId>com.alibaba</groupId>

? ? <artifactId>druid</artifactId>

? ? <version>1.1.6</version>

</dependency>

二、配置application.properties?


## 數(shù)據(jù)庫配置

## 數(shù)據(jù)源

spring.datasource.type = com.alibaba.druid.pool.DruidDataSource

## 數(shù)據(jù)庫連接

spring.datasource.url=jdbc:mysql://localhost:3306/testdb?useUnicode=true&characterEncoding=utf8

## 數(shù)據(jù)庫用戶名

spring.datasource.username=root

## 數(shù)據(jù)庫連接密碼

spring.datasource.password=123456

## 數(shù)據(jù)庫連接驅(qū)動(dòng)

spring.datasource.driverClassName=com.mysql.jdbc.Driver

## 配置監(jiān)控統(tǒng)計(jì)攔截filters

spring.datasource.filters = stat

## 連接池最大使用連接數(shù)

spring.datasource.maxActive = 20

## 初始化連接大小

spring.datasource.initialSize = 3

## 獲取連接最大等待時(shí)間

spring.datasource.maxWait = 60000

## 連接池最小空閑

spring.datasource.minIdle = 1

## 配置間隔多久才進(jìn)行一次檢測(cè)，檢測(cè)需要關(guān)閉的空閑連接，單位是毫秒

spring.datasource.timeBetweenEvictionRunsMillis = 60000

## 配置一個(gè)連接在池中最小生存的時(shí)間，單位是毫秒

spring.datasource.minEvictableIdleTimeMillis = 300000

spring.datasource.validationQuery = select 'x'

spring.datasource.testWhileIdle = true

spring.datasource.testOnBorrow = false

spring.datasource.testOnReturn = false

spring.datasource.poolPreparedStatements = true

spring.datasource.maxOpenPreparedStatements = 20


三、配置DruidConfig

import com.alibaba.druid.pool.DruidDataSource;

import com.alibaba.druid.support.http.StatViewServlet;

import com.alibaba.druid.support.http.WebStatFilter;

import org.springframework.beans.factory.annotation.Value;

import org.springframework.boot.web.servlet.FilterRegistrationBean;

import org.springframework.boot.web.servlet.ServletRegistrationBean;

import org.springframework.context.annotation.Bean;

import org.springframework.context.annotation.Configuration;

import org.springframework.context.annotation.Primary;

import java.sql.SQLException;

/**

* Created by panxiang on 2017-06-25.

*/

@Configuration

public class DruidConfig {

? ? @Value("${spring.datasource.url}")

? ? private String dbUrl;

? ? @Value("${spring.datasource.username}")

? ? private String username;

? ? @Value("${spring.datasource.password}")

? ? private String password;

? ? @Value("${spring.datasource.driverClassName}")

? ? private String driverClassName;

? ? @Value("${spring.datasource.initialSize}")

? ? private int initialSize;

? ? @Value("${spring.datasource.minIdle}")

? ? private int minIdle;

? ? @Value("${spring.datasource.maxActive}")

? ? private int maxActive;

? ? @Value("${spring.datasource.maxWait}")

? ? private int maxWait;

? ? @Value("${spring.datasource.timeBetweenEvictionRunsMillis}")

? ? private int timeBetweenEvictionRunsMillis;

? ? @Value("${spring.datasource.minEvictableIdleTimeMillis}")

? ? private int minEvictableIdleTimeMillis;

? ? @Value("${spring.datasource.validationQuery}")

? ? private String validationQuery;

? ? @Value("${spring.datasource.testWhileIdle}")

? ? private boolean testWhileIdle;

? ? @Value("${spring.datasource.testOnBorrow}")

? ? private boolean testOnBorrow;

? ? @Value("${spring.datasource.testOnReturn}")

? ? private boolean testOnReturn;

? ? @Value("${spring.datasource.poolPreparedStatements}")

? ? private boolean poolPreparedStatements;

? ? @Value("${spring.datasource.filters}")

? ? private String filters;

? ? @Bean

? ? public ServletRegistrationBean druidServlet() {

? ? ? ? ServletRegistrationBean reg = new ServletRegistrationBean();

? ? ? ? reg.setServlet(new StatViewServlet());

? ? ? ? reg.addUrlMappings("/druid/*");

? ? ? ? reg.addInitParameter("loginUsername", "admin");

? ? ? ? reg.addInitParameter("loginPassword", "123456");

? ? ? ? return reg;

? ? }

? ? @Bean

? ? public FilterRegistrationBean filterRegistrationBean() {

? ? ? ? FilterRegistrationBean filterRegistrationBean = new FilterRegistrationBean();

? ? ? ? filterRegistrationBean.setFilter(new WebStatFilter());

? ? ? ? filterRegistrationBean.addUrlPatterns("/*");

? ? ? ? filterRegistrationBean.addInitParameter("exclusions", "*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid/*");

? ? ? ? filterRegistrationBean.addInitParameter("profileEnable", "true");

? ? ? ? filterRegistrationBean.addInitParameter("principalCookieName", "USER_COOKIE");

? ? ? ? filterRegistrationBean.addInitParameter("principalSessionName", "USER_SESSION");

? ? ? ? return filterRegistrationBean;

? ? }

? ? @Bean

? ? @Primary

? ? public DruidDataSource druidDataSource() {

? ? ? ? DruidDataSource datasource = new DruidDataSource();

? ? ? ? datasource.setUrl(this.dbUrl);

? ? ? ? datasource.setUsername(username);

? ? ? ? datasource.setPassword(password);

? ? ? ? datasource.setDriverClassName(driverClassName);

? ? ? ? datasource.setInitialSize(initialSize);

? ? ? ? datasource.setMinIdle(minIdle);

? ? ? ? datasource.setMaxActive(maxActive);

? ? ? ? datasource.setMaxWait(maxWait);

? ? ? ? datasource.setTimeBetweenEvictionRunsMillis(timeBetweenEvictionRunsMillis);

? ? ? ? datasource.setMinEvictableIdleTimeMillis(minEvictableIdleTimeMillis);

? ? ? ? datasource.setValidationQuery(validationQuery);

? ? ? ? datasource.setTestWhileIdle(testWhileIdle);

? ? ? ? datasource.setTestOnBorrow(testOnBorrow);

? ? ? ? datasource.setTestOnReturn(testOnReturn);

? ? ? ? datasource.setPoolPreparedStatements(poolPreparedStatements);

? ? ? ? try {

? ? ? ? ? ? datasource.setFilters(filters);

? ? ? ? } catch (SQLException e) {

? ? ? ? }

? ? ? ? return datasource;

? ? }

}

四、配置SessionFactory

import javax.sql.DataSource;

import org.apache.ibatis.session.SqlSessionFactory;

import org.mybatis.spring.SqlSessionFactoryBean;

import org.mybatis.spring.SqlSessionTemplate;

import org.mybatis.spring.annotation.MapperScan;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.context.annotation.Bean;

import org.springframework.context.annotation.Configuration;

import org.springframework.core.io.support.PathMatchingResourcePatternResolver;

import org.springframework.jdbc.datasource.DataSourceTransactionManager;

import org.springframework.transaction.PlatformTransactionManager;

import org.springframework.transaction.annotation.EnableTransactionManagement;

import org.springframework.transaction.annotation.TransactionManagementConfigurer;

/**

* Created by panxiang on 2017-06-25.

*/

@Configuration

@EnableTransactionManagement

@MapperScan(basePackages = SessionFactoryConfig.PACKAGE)

public class SessionFactoryConfig implements TransactionManagementConfigurer {

? ? /**

? ? * mybatis 配置路徑

? ? */

//? static final String MYBATIS_CONFIG = "mybatis-config.xml";

? ? static final String PACKAGE = "com.tool.springBoot.dao";

? ? static final String MAPPER_LOCATION = "classpath:mapper/*.xml";

? ? static final String TYPEALIAS_PACKAGE = "com.tool.springBoot.vo";

? ? @Autowired

? ? private DataSource dataSource;

? ? /**

? ? * 創(chuàng)建sqlSessionFactoryBean 實(shí)例

? ? * 并且設(shè)置configtion 如駝峰命名.等等

? ? * 設(shè)置mapper 映射路徑

? ? * 設(shè)置datasource數(shù)據(jù)源

? ? *

? ? * @return

? ? * @throws Exception

? ? */

? ? @Bean(name = "sqlSessionFactory")

? ? public SqlSessionFactoryBean createSqlSessionFactoryBean() throws Exception {

? ? ? ? SqlSessionFactoryBean sqlSessionFactoryBean = new SqlSessionFactoryBean();

? ? ? ? /** 設(shè)置mybatis configuration 掃描路徑 */

//? ? ? ? sqlSessionFactoryBean.setConfigLocation(new ClassPathResource(MYBATIS_CONFIG));

? ? ? ? /** 設(shè)置datasource */

? ? ? ? sqlSessionFactoryBean.setDataSource(dataSource);

? ? ? ? /** 設(shè)置typeAlias 包掃描路徑 */

? ? ? ? sqlSessionFactoryBean.setTypeAliasesPackage(TYPEALIAS_PACKAGE);

? ? ? ? /**設(shè)置map映射文件路徑*/

? ? ? ? sqlSessionFactoryBean.setMapperLocations(new PathMatchingResourcePatternResolver()

? ? ? ? ? ? ? ? .getResources(SessionFactoryConfig.MAPPER_LOCATION));

? ? ? ? return sqlSessionFactoryBean;

? ? }

? ? @Bean

? ? public SqlSessionTemplate sqlSessionTemplate(SqlSessionFactory sqlSessionFactory) {

? ? ? ? return new SqlSessionTemplate(sqlSessionFactory);

? ? }

? ? @Bean

? ? @Override

? ? public PlatformTransactionManager annotationDrivenTransactionManager() {

? ? ? ? return new DataSourceTransactionManager(dataSource);

? ? }

}


五、配置 mapper 的xml文件

<?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.tool.springBoot.dao.TestDao">

? ? <select id="findAll" resultType = "com.tool.springBoot.vo.StudentVO">

? ? ? ? select * from student;

? ? </select>

</mapper>

六、controller

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.stereotype.Controller;

import org.springframework.web.bind.annotation.RequestMapping;

import com.tool.springBoot.service.TestService;

@Controller

public class TestController {

@Autowired

private TestService? testService;

@RequestMapping("/hello")

? ? public String index() {

????????testService.testMybatis();

????????return "hello";

? ? }

}


七、service

import com.tool.springBoot.vo.User;

public interface TestService {

????????public String testMybatis();

}


@Component

public class TestServiceImpl implements TestService{

????????@Autowired

????????private TestDao? testDao;

????@Override

????public void testMybatis() {

????????testDao.findAll();

????}

}

八、dao

import java.util.List;

import org.apache.ibatis.annotations.Mapper;

import com.tool.springBoot.vo.StudentVO;

@Mapper

public interface TestDao {

????????public List<StudentVO> findAll();

}

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