配合spring 使用 tomcat连接池

准备

修改pom.xml

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

<!--tomcat连接池-->
<dependency>
<groupId>org.apache.tomcat</groupId>
<artifactId>tomcat-jdbc</artifactId>
<version>${tomcat-version}</version>
</dependency>

<dependency>
<groupId>org.apache.tomcat</groupId>
<artifactId>tomcat-servlet-api</artifactId>
<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;