配合spring 使用 tomcat连接池

准备

修改pom.xml

<dependency>
    <groupId>mysqlgroupId>
    <artifactId>mysql-connector-javaartifactId>
    <version>5.1.40version>
dependency>


<dependency>
    <groupId>org.apache.tomcatgroupId>
    <artifactId>tomcat-jdbcartifactId>
    <version>${tomcat-version}version>
dependency>

<dependency>
    <groupId>org.apache.tomcatgroupId>
    <artifactId>tomcat-servlet-apiartifactId>
    <version>${tomcat-version}version>
dependency>

常规配置（每次都好用）

@Bean
public DataSource dataSource(){
    PoolProperties p = new PoolProperties();
    p.setUrl("jdbc:mysql://localhost:3306/app");
    p.setDriverClassName("com.mysql.jdbc.Driver");
    p.setUsername("root");
    p.setPassword("uroot");
    p.setJmxEnabled(true);
    p.setTestWhileIdle(false);
    p.setTestOnBorrow(true);
    p.setValidationQuery("SELECT 1");
    p.setTestOnReturn(false);
    p.setValidationInterval(30000);
    p.setTimeBetweenEvictionRunsMillis(30000);
    p.setMaxActive(100);
    p.setInitialSize(10);
    p.setMaxWait(10000);
    p.setRemoveAbandonedTimeout(60);
    p.setMinEvictableIdleTimeMillis(30000);
    p.setMinIdle(10);
    p.setLogAbandoned(true);
    p.setRemoveAbandoned(true);
    p.setJdbcInterceptors(
            "org.apache.tomcat.jdbc.pool.interceptor.ConnectionState;" +
            "org.apache.tomcat.jdbc.pool.interceptor.StatementFinalizer");
    DataSource datasource = new DataSource();
    datasource.setPoolProperties(p);

    return datasource;
}

SpringBoot 配置（有时候莫名不好用）

spring.datasource.tomcat.password=[数据库密码]
spring.datasource.tomcat.username=[数据库用户名]
spring.datasource.tomcat.url=jdbc:mysql://127.0.0.1:3306/app
spring.datasource.tomcat.driver-class-name=com.mysql.jdbc.Driver

#该选项用来验证数据库连接的有效性。
#SELECT 1(mysql), select 1 from dual(oracle), SELECT 1(MS Sql Server) 。
spring.datasource.tomcat.validation-query=SELECT 1

#连接池的最大数据库连接数。设为0表示无限制。
spring.datasource.tomcat.max-active=100

#最大建立连接等待时间。如果超过此时间将接到异常。设为-1表示无限制。
spring.datasource.tomcat.max-wait=10000

#最大空闲数，数据库连接的最大空闲时间。默认100
#超过空闲时间，数据库连接将被标记为不可用，然后被释放。设为0表示无限制。
spring.datasource.tomcat.max-idle=100
spring.datasource.tomcat.min-idle=10

spring.datasource.tomcat.jmx-enabled=true
spring.datasource.tomcat.test-on-borrow=true
spring.datasource.tomcat.test-while-idle=false
spring.datasource.tomcat.test-on-return=false
spring.datasource.tomcat.validation-interval=30000
spring.datasource.tomcat.time-between-eviction-runs-millis=30000
spring.datasource.tomcat.initial-size=10
spring.datasource.tomcat.remove-abandoned-timeout=60
spring.datasource.tomcat.log-abandoned=true
spring.datasource.tomcat.remove-abandoned=true
spring.datasource.tomcat.jdbc-interceptors=org.apache.tomcat.jdbc.pool.interceptor.ConnectionState;org.apache.tomcat.jdbc.pool.interceptor.StatementFinalizer;