SpringBoot1.X整合数据库连接池HikariCP

阳光穿透心脏的1/2处 2024-04-18 22:41 75阅读 0赞

SpringBoot2默认的数据库连接池已经是HikariCP，所以不需要再配置，SpringBoot2版本之前的则需要配置

# 添加maven依赖 #

<dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-jdbc</artifactId>
        <exclusions>
            <exclusion>
                <groupId>org.apache.tomcat</groupId>
                <artifactId>tomcat-jdbc</artifactId>
            </exclusion>
        </exclusions>
    </dependency>
    
    <dependency>
        <groupId>com.zaxxer</groupId>
        <artifactId>HikariCP</artifactId>
        
    </dependency>

# 添加配置 #

spring.datasource.url=jdbc:mysql://127.0.0.1:3306/test1?useUnicode=true&characterEncoding=UTF-8&zeroDateTimeBehavior=convertToNull
    spring.datasource.username=root
    spring.datasource.password=hongda$123456
    spring.datasource.driverClassName=com.mysql.jdbc.Driver
     
    spring.datasource.max-idle=10
    spring.datasource.max-active=15
    spring.datasource.max-lifetime=86430000
    spring.datasource.log-abandoned=true
    spring.datasource.remove-abandoned=true
    spring.datasource.remove-abandoned-timeout=60
    spring.datasource.initialize=false
    spring.datasource.sqlScriptEncoding=UTF-8

# 新建配置类DataSourceConfig.java #

import com.zaxxer.hikari.HikariConfig;
    import com.zaxxer.hikari.HikariDataSource;
    import org.springframework.beans.factory.annotation.Value;
    import org.springframework.context.annotation.Bean;
    import org.springframework.context.annotation.Configuration;
     
    import javax.sql.DataSource;
     
     
    /** * HikariCP连接池配置 */
    @Configuration
    public class DataSourceConfig { 
     
        @Value("${spring.datasource.url}")
        private String dataSourceUrl;
     
        @Value("${spring.datasource.username}")
        private String user;
     
        @Value("${spring.datasource.password}")
        private String password;
     
        @Bean
        public DataSource dataSource() { 
            HikariConfig config = new HikariConfig();
            /** 数据源 */
            config.setJdbcUrl(dataSourceUrl); 
            /** 用户名 */
            config.setUsername(user); 
            /** 密码 */
            config.setPassword(password); 
            /** 是否自定义配置，为true时下面两个参数才生效 */
            config.addDataSourceProperty("cachePrepStmts", "true");
            /** 连接池大小默认25，官方推荐250-500 */
            config.addDataSourceProperty("prepStmtCacheSize", "250"); 
            /** 单条语句最大长度默认256，官方推荐2048 */
            config.addDataSourceProperty("prepStmtCacheSqlLimit", "2048");
            /** 新版本MySQL支持服务器端准备，开启能够得到显著性能提升 */
            config.addDataSourceProperty("useServerPrepStmts", "true"); 
            config.addDataSourceProperty("useLocalSessionState", "true");
            config.addDataSourceProperty("useLocalTransactionState", "true");
            config.addDataSourceProperty("rewriteBatchedStatements", "true");
            config.addDataSourceProperty("cacheResultSetMetadata", "true");
            config.addDataSourceProperty("cacheServerConfiguration", "true");
            config.addDataSourceProperty("elideSetAutoCommits", "true");
            config.addDataSourceProperty("maintainTimeStats", "false");
     
            HikariDataSource ds = new HikariDataSource(config);
            return ds;
        }
    }