SpringBoot+MyBatis+Mapper+Druid整合

为SpringBoot添加Druid连接池,添加通用Mapper。
首先SpringBoot的Maven配置就不再叙述了。
在pom中引入依赖:

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<!-- Ali Druid Pool -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.0.29</version>
</dependency>
<!-- MyBatis starter -->
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>1.3.1</version>
</dependency>
<!-- tk Mapper starter -->
<dependency>
<groupId>tk.mybatis</groupId>
<artifactId>mapper-spring-boot-starter</artifactId>
<version>1.1.4</version>
</dependency>
<!-- pageHelper starter -->
<dependency>
<groupId>com.github.pagehelper</groupId>
<artifactId>pagehelper-spring-boot-starter</artifactId>
<version>1.2.1</version>
</dependency>

配置文件中加入以下配置:

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#数据库配置
spring.datasource.type=com.alibaba.druid.pool.DruidDataSource
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
spring.datasource.url=jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=UTF-8&useSSL=true
spring.datasource.username=username
spring.datasource.password=password
# 下面为连接池的补充设置,应用到上面所有数据源中# 初始化大小,最小,最大
spring.datasource.initialSize=5
spring.datasource.minIdle=5
spring.datasource.maxActive=20
# 配置获取连接等待超时的时间
spring.datasource.maxWait=60000
# 配置间隔多久才进行一次检测,检测需要关闭的空闲连接,单位是毫秒
spring.datasource.timeBetweenEvictionRunsMillis=60000
# 配置一个连接在池中最小生存的时间,单位是毫秒
spring.datasource.minEvictableIdleTimeMillis=300000
spring.datasource.validationQuery=SELECT 1 FROM DUAL
spring.datasource.testWhileIdle=true
spring.datasource.testOnBorrow=false
spring.datasource.testOnReturn=false
# 打开PSCache,并且指定每个连接上PSCache的大小
spring.datasource.poolPreparedStatements=true
spring.datasource.maxPoolPreparedStatementPerConnectionSize=20
# 配置监控统计拦截的filters,去掉后监控界面sql无法统计,'wall'用于防火墙
spring.datasource.filters=stat,wall,log4j
# 通过connectProperties属性来打开mergeSql功能;慢SQL记录
spring.datasource.connectionProperties=druid.stat.mergeSql=true;druid.stat.slowSqlMillis=5000
# MyBatis
mybatis.type-aliases-package=com.dragon.domain
mybatis.mapper-locations=classpath:com/dragon/mapper/*.xml
# PageHelper
pagehelper.offset-as-page-num=true
pagehelper.row-bounds-with-count=true
pagehelper.reasonable=true
pagehelper.support-methods-arguments=true
pagehelper.params=count=countSql
# MyMapper
mapper.mappers=com.dragon.config.MyMapper
mapper.not-empty=false
mapper.identity=MYSQL

下面是Druid的配置:DruidDataSourceConfig、

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import com.alibaba.druid.pool.DruidDataSource;
import com.alibaba.druid.support.http.StatViewServlet;
import com.alibaba.druid.support.http.WebStatFilter;
import com.xescm.owner.model.enums.BusinessTypeEnum;
import com.xescm.resource.enums.AttachmentTypeEnum;
import org.apache.ibatis.session.SqlSessionFactory;
import org.apache.ibatis.type.EnumTypeHandler;
import org.apache.ibatis.type.JdbcType;
import org.apache.ibatis.type.TypeHandlerRegistry;
import org.mybatis.spring.SqlSessionFactoryBean;
import org.mybatis.spring.SqlSessionTemplate;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.bind.RelaxedPropertyResolver;
import org.springframework.boot.web.servlet.FilterRegistrationBean;
import org.springframework.boot.web.servlet.ServletRegistrationBean;
import org.springframework.context.EnvironmentAware;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.env.Environment;
import org.springframework.jdbc.datasource.DataSourceTransactionManager;
import org.springframework.transaction.PlatformTransactionManager;
import org.springframework.transaction.annotation.EnableTransactionManagement;
import java.sql.SQLException;
/**
* Druid-DataResource配置类
* @author dragon
*/
@Configuration
@EnableTransactionManagement
@MapperScan(value = "com.dragon.mapper")
public class DruidDataSourceConfig implements EnvironmentAware {
private Environment environment;
private RelaxedPropertyResolver propertyResolver;
@Override
public void setEnvironment(Environment environment) {
this.environment = environment;
this.propertyResolver = new RelaxedPropertyResolver(environment,"spring.datasource.");
}
@Bean(initMethod = "init", destroyMethod = "close")
public DruidDataSource dataSource() throws SQLException {
DruidDataSource druidDataSource = new DruidDataSource();
druidDataSource.setDriverClassName(propertyResolver.getProperty("driver-class-name"));
druidDataSource.setUrl(propertyResolver.getProperty("url"));
druidDataSource.setUsername(propertyResolver.getProperty("username"));
druidDataSource.setPassword(propertyResolver.getProperty("password"));
druidDataSource.setInitialSize(Integer.parseInt(propertyResolver.getProperty("initialSize")));
druidDataSource.setMinIdle(Integer.parseInt(propertyResolver.getProperty("minIdle")));
druidDataSource.setMaxActive(Integer.parseInt(propertyResolver.getProperty("maxActive")));
druidDataSource.setMaxWait(Integer.parseInt(propertyResolver.getProperty("maxWait")));
druidDataSource.setTimeBetweenEvictionRunsMillis(Long.parseLong(propertyResolver.getProperty("timeBetweenEvictionRunsMillis")));
druidDataSource.setMinEvictableIdleTimeMillis(Long.parseLong(propertyResolver.getProperty("minEvictableIdleTimeMillis")));
druidDataSource.setValidationQuery(propertyResolver.getProperty("validationQuery"));
druidDataSource.setTestWhileIdle(Boolean.parseBoolean(propertyResolver.getProperty("testWhileIdle")));
druidDataSource.setTestOnBorrow(Boolean.parseBoolean(propertyResolver.getProperty("testOnBorrow")));
druidDataSource.setTestOnReturn(Boolean.parseBoolean(propertyResolver.getProperty("testOnReturn")));
druidDataSource.setPoolPreparedStatements(Boolean.parseBoolean(propertyResolver.getProperty("poolPreparedStatements")));
druidDataSource.setMaxPoolPreparedStatementPerConnectionSize(Integer.parseInt(propertyResolver.getProperty("maxPoolPreparedStatementPerConnectionSize")));
druidDataSource.setFilters(propertyResolver.getProperty("filters"));
return druidDataSource;
}
@Bean(name = "sqlSessionFactory")
public SqlSessionFactory sqlSessionFactory() throws Exception {
SqlSessionFactoryBean sqlSessionFactoryBean = new SqlSessionFactoryBean();
sqlSessionFactoryBean.setDataSource(dataSource());
// 加入下面配置可以让MyBatis按照驼峰命名形式映射字段
sqlSessionFactoryBean.getObject().getConfiguration().setMapUnderscoreToCamelCase(true);
return sqlSessionFactoryBean.getObject();
}
@Bean
public PlatformTransactionManager transactionManager() throws SQLException {
return new DataSourceTransactionManager(dataSource());
}
@Bean
public ServletRegistrationBean druidServlet() {
ServletRegistrationBean reg = new ServletRegistrationBean();
reg.setServlet(new StatViewServlet());
reg.addUrlMappings("/druid/*");
reg.addInitParameter("loginUsername", "admin");
reg.addInitParameter("loginPassword", "admin");
return reg;
}
@Bean
public SqlSessionTemplate sqlSessionTemplate(SqlSessionFactory sqlSessionFactory) {
return new SqlSessionTemplate(sqlSessionFactory);
}
@Bean
public FilterRegistrationBean filterRegistrationBean() {
FilterRegistrationBean filterRegistrationBean = new FilterRegistrationBean();
filterRegistrationBean.setFilter(new WebStatFilter());
filterRegistrationBean.addUrlPatterns("/*");
filterRegistrationBean.addInitParameter("exclusions", "*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid/*");
return filterRegistrationBean;
}
}