Spring Boot + mybatis + druid配置详解

雨点打透心脏的1/2处 2022-05-20 06:24 254阅读 0赞

一、添加pom.xml依赖

1、mysql

<dependency>
                <groupId>mysql</groupId>
                <artifactId>mysql-connector-java</artifactId>
                <version>5.1.40</version>
            </dependency>

2、mybatis

<dependency>
                <groupId>org.mybatis.spring.boot</groupId>
                <artifactId>mybatis-spring-boot-starter</artifactId>
                <version>1.2.2</version>
            </dependency>

3、druid

<dependency>
                <groupId>com.alibaba</groupId>
                <artifactId>druid</artifactId>
                <version>1.1.0</version>
            </dependency>

4、分页 pagehelper

<dependency>
    	    	<groupId>com.github.pagehelper</groupId>
    	   	 	<artifactId>pagehelper</artifactId>
    	    	<version>5.0.0</version>
    		</dependency>
    		<dependency>
                <groupId>com.github.pagehelper</groupId>
                <artifactId>pagehelper-spring-boot-autoconfigure</artifactId>
                <version>1.2.3</version>
            </dependency>
            <dependency>
                <groupId>com.github.pagehelper</groupId>
                <artifactId>pagehelper-spring-boot-starter</artifactId>
                <version>1.2.3</version>
            </dependency>

二、添加application.properties配置

spring.datasource.driver-class-name=com.mysql.jdbc.Driver
    spring.datasource.url=jdbc:mysql://172.18.100.10:3307/test?useUnicode=true&characterEncoding=UTF-8&autoReconnect=true&failOverReadOnly=false
    spring.datasource.username=root
    spring.datasource.password=123456
    
    druid.login.enabled=true
    druid.login.username=druid
    druid.login.password=druid
    
    spring.datasource.type=com.alibaba.druid.pool.DruidDataSource
    spring.datasource.initialSize=20
    spring.datasource.minIdle=30
    spring.datasource.maxActive=50
    spring.datasource.maxWait=60000
    spring.datasource.timeBetweenEvictionRunsMillis=60000
    spring.datasource.minEvictableIdleTimeMillis=300000
    spring.datasource.validationQuery=SELECT 'x'
    spring.datasource.testWhileIdle=true
    spring.datasource.testOnBorrow=true
    spring.datasource.testOnReturn=true
    spring.datasource.poolPreparedStatements=true
    spring.datasource.maxPoolPreparedStatementPerConnectionSize=20
    spring.datasource.filters=stat
    spring.datasource.connectionProperties:druid.stat.slowSqlMillis=5000
    
    # MyBatis 配置
    mybatis.mapper-locations=classpath:com/fintech/modules/**/dao/*Mapper.xml
    mybatis.type-aliases-package=com.fintech.modules
    
    #配置分页插件pagehelper
    pagehelper.helperDialect=mysql
    pagehelper.reasonable=true
    pagehelper.supportMethodsArguments=true
    pagehelper.params.count=countSql

三、DruidConfig配置

package com.fintech.modules.base.util;
    
    import java.sql.SQLException;
    import javax.sql.DataSource;
    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;
    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 com.alibaba.druid.pool.DruidDataSource;
    import com.alibaba.druid.support.http.StatViewServlet;
    import com.alibaba.druid.support.http.WebStatFilter;
    
    /**
     * @author lc
     * @date: 2017/11/16 19:29
     * @description: druid数据库连接池配置加载类
     */
    @Configuration
    public class DruidConfig {
        private Logger logger = LoggerFactory.getLogger(getClass());
    
        @Value("${druid.login.enabled}")
        private boolean druidLoginEnabled;
    
        @Value("${druid.login.username}")
        private String druidLoginUsername;
    
        @Value("${druid.login.password}")
        private String druidLoginPassword;
    
        @Value("${spring.datasource.url}")
        private String dbUrl;
    
        @Value("${spring.datasource.username}")
        private String username;
    
        @Value("${spring.datasource.password}")
        private String password;
    
        @Value("${spring.datasource.driver-class-name}")
        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/*");
    
            //web访问是否需要登录
            if(druidLoginEnabled) {
                reg.addInitParameter("loginUsername", druidLoginUsername);
                reg.addInitParameter("loginPassword", druidLoginPassword);
            }
            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(destroyMethod = "close", initMethod = "init")
        @Primary
        public DataSource druidDataSource() {
            logger.info("开始配置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) {
                logger.error("druid configuration initialization filter", e);
            }
            logger.info("druidDataSource配置成功");
            return datasource;
        }
    
    }