Hikari

1、首先集成 hikari springboot默认集成,只需要简单的配置即可

1.1 首先导入包

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

1.2 编写配置文件

# hikari
#spring.datasource.url=jdbc:mysql://127.0.0.1:3306/springboot2
#spring.datasource.username=root
#spring.datasource.password=root
#spring.datasource.driver-class-name=com.mysql.jdbc.Driver

1.3 编写配置类

package com.archibaldwitwicke.springboot2.chapter05.dao;

import org.springframework.context.annotation.Configuration;

@Configuration
public class DataSourceConfiguration { // Hikari 连接池
// @Bean(name = "dataSource")
// public DataSource dataSource(@Autowired Environment environment) {
// HikariDataSource ds = new HikariDataSource();
// ds.setJdbcUrl(environment.getProperty("spring.datasource.url"));
// ds.setUsername(environment.getProperty("spring.datasource.username"));
// ds.setPassword(environment.getProperty("spring.datasource.password"));
// ds.setDriverClassName(environment.getProperty("spring.datasource.driver-class-name"));
// return ds;
// }
}

1.4 然后即可即可 jdbctemplate模板使用。

C3P0

1 导入相应包

<dependency>
<groupId>c3p0</groupId>
<artifactId>c3p0</artifactId>
<version>0.9.1.2</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jdbc</artifactId>
</dependency>

2 编写相应配置文件  

# c3p0
#c3p0.jdbcUrl=jdbc:mysql://127.0.0.1:3306/springboot2
#c3p0.user=root
#c3p0.password=root
#c3p0.driverClass=com.mysql.jdbc.Driver
#c3p0.minPoolSize=2
#c3p0.maxPoolSize=10
#c3p0.maxIdleTime=1800000
#c3p0.acquireIncrement=3
#c3p0.maxStatements=1000
#c3p0.initialPoolSize=3
#c3p0.idleConnectionTestPeriod=60
#c3p0.acquireRetryAttempts=30
#c3p0.acquireRetryDelay=1000
#c3p0.breakAfterAcquireFailure=false
#c3p0.testConnectionOnCheckout=false

3 编写数据源类

package com.archibaldwitwicke.springboot2.chapter05.dao;

import org.springframework.context.annotation.Configuration;

@Configuration
public class DataSourceConfiguration { // c3p0 连接池
// @Bean(name = "dataSource")
// @Qualifier(value = "dataSource")
// @Primary
// @ConfigurationProperties(prefix = "c3p0")
// public DataSource dataSource(@Autowired Environment environment) {
// return DataSourceBuilder.create().type(com.mchange.v2.c3p0.ComboPooledDataSource.class).build();
// }
}

4 然后即可注入 jdbctemplate 操作数据库

Druid

1 导入相应包(需要日志包)

<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.0.29</version>
</dependency>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.16</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jdbc</artifactId>
</dependency>

2 编写配置文件

# durid
# 驱动配置信息
spring.datasource.url = jdbc:mysql://127.0.0.1:3306/springboot2
spring.datasource.username = root
spring.datasource.password = root
spring.datasource.driverClassName = com.mysql.jdbc.Driver
#连接池的配置信息
spring.datasource.initialSize=5
spring.datasource.minIdle=5
spring.datasource.maxActive=20
spring.datasource.maxWait=60000
spring.datasource.timeBetweenEvictionRunsMillis=60000
spring.datasource.minEvictableIdleTimeMillis=300000
spring.datasource.validationQuery=SELECT 1 FROM DUAL
spring.datasource.testWhileIdle=true
spring.datasource.testOnBorrow=false
spring.datasource.testOnReturn=false
spring.datasource.poolPreparedStatements=true
spring.datasource.maxPoolPreparedStatementPerConnectionSize=20
spring.datasource.filters=stat,wall,log4j
spring.datasource.connectionProperties=druid.stat.mergeSql=true;druid.stat.slowSqlMillis=5000

还需要log4j配置:

log4j.rootCategory=INFO, stdout
log4j.rootLogger=info, stdout ### stdout ###
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.Target=System.out
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d{ABSOLUTE} %5p - %m%n ### set package ###
log4j.logger.org.springframework=info
log4j.logger.org.apache.catalina=info
log4j.logger.org.apache.commons.digester.Digester=info
log4j.logger.org.apache.catalina.startup.TldConfig=info
log4j.logger.chb.test=debug

3 编写数据源类

package com.archibaldwitwicke.springboot2.chapter05.dao;

import com.alibaba.druid.pool.DruidDataSource;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary; import javax.sql.DataSource;
import java.sql.SQLException; @Configuration
public class DruidDataSourceConfiguration {
// private Logger logger = LoggerFactory.getLogger(DruidDataSourceConfiguration.class); @Value("${spring.datasource.url}")
private String dbUrl; @Value("${spring.datasource.username}")
private String username; @Value("${spring.datasource.password}")
private String password; @Value("${spring.datasource.driverClassName}")
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.maxPoolPreparedStatementPerConnectionSize}")
private int maxPoolPreparedStatementPerConnectionSize; @Value("${spring.datasource.filters}")
private String filters; @Value("{spring.datasource.connectionProperties}")
private String connectionProperties; @Bean //声明其为Bean实例
@Primary //在同样的DataSource中,首先使用被标注的DataSource
public DataSource dataSource() {
DruidDataSource datasource = new DruidDataSource(); datasource.setUrl(this.dbUrl);
datasource.setUsername(username);
datasource.setPassword(password);
datasource.setDriverClassName(driverClassName); //configuration
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);
datasource.setMaxPoolPreparedStatementPerConnectionSize(maxPoolPreparedStatementPerConnectionSize);
try {
datasource.setFilters(filters);
} catch (SQLException e) {
// logger.error("druid configuration initialization filter", e);
e.printStackTrace();
}
datasource.setConnectionProperties(connectionProperties); return datasource;
}
}

4 即可使用 jdbctemplate

以上所有数据源,根据需要导入数据驱动, 测试使用的为msyql

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