目錄
6、如果還要監控與 spring 相關的東西 :druid-bean.xml
四、該項目的github 連接 ,改一下數據庫連接就可以直接用;
該項目的github 連接 :
https://github.com/Zhao2018Mr/springboot_mybatis_druid
該例使用的是 postgresql 數據庫,如果用其他的,改下jdbc 連接就可以了
一、依賴包
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjtools</artifactId>
<version>1.6.2</version>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.1.16</version>
</dependency>
<dependency>
<groupId>com.baomidou</groupId>
<artifactId>mybatis-plus-boot-starter</artifactId>
<version>2.2.0</version>
</dependency>
<dependency>
<groupId>org.postgresql</groupId>
<artifactId>postgresql</artifactId>
<scope>runtime</scope>
</dependency>
二、druid 配置文件
1、需要忽略哪些文件
import com.alibaba.druid.support.http.WebStatFilter;
import javax.servlet.annotation.WebFilter;
import javax.servlet.annotation.WebInitParam;
@WebFilter(filterName="druidWebStatFilter",urlPatterns="/*",
initParams={
@WebInitParam(name="exclusions",value="*.js,*.gif,*.jpg,*.bmp,*.png,*.css,*.ico,/druid/*")//忽略資源
}
)
public class DruidStatFilter extends WebStatFilter {
}
2、關於druid 管理頁面的配置
import com.alibaba.druid.support.http.StatViewServlet;
import javax.servlet.annotation.WebInitParam;
import javax.servlet.annotation.WebServlet;
@WebServlet(urlPatterns="/druid/*",
initParams={
@WebInitParam(name="allow",value="127.0.0.1"),// IP白名單(沒有配置或者爲空,則允許所有訪問)
@WebInitParam(name="deny",value="192.168.1.73"),// IP黑名單 (存在共同時,deny優先於allow)
@WebInitParam(name="loginUsername",value="admin"),// 用戶名
@WebInitParam(name="loginPassword",value="123456"),// 密碼
@WebInitParam(name="resetEnable",value="false")// 禁用HTML頁面上的“Reset All”功能
})
public class DruidStatViewServlet extends StatViewServlet {
private static final long serialVersionUID = -2688872071445249539L;
}
3、數據庫第一個連接
package com.zyj.config.druid;
import com.alibaba.druid.pool.DruidDataSource;
import com.alibaba.druid.wall.WallConfig;
import com.alibaba.druid.wall.WallFilter;
import org.apache.ibatis.session.SqlSessionFactory;
import org.mybatis.spring.SqlSessionFactoryBean;
import org.mybatis.spring.annotation.MapperScan;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
import org.springframework.jdbc.datasource.DataSourceTransactionManager;
import javax.sql.DataSource;
import java.util.ArrayList;
import java.util.List;
@Configuration
@MapperScan(basePackages = MasterDruidDBConfig.PACKAGE,sqlSessionFactoryRef = "masterSqlSessionFactory")
public class MasterDruidDBConfig {
private static Logger logger = LoggerFactory.getLogger(MasterDruidDBConfig.class);
static final String PACKAGE = "com.zyj.dao.master";
static final String MAPPER_LOCATION = "classpath:mapper/master/*.xml";
@Value("${spring.datasource.master.url}")
private String dbUrl;
@Value("${spring.datasource.master.username}")
private String username;
@Value("${spring.datasource.master.password}")
private String password;
@Value("${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.maxPoolPreparedStatementPerConnectionSize}")
private int maxPoolPreparedStatementPerConnectionSize;
@Value("${spring.datasource.filters}")
private String filters;
@Value("{spring.datasource.connectionProperties}")
private String connectionProperties;
@Bean("dataSourceMaster") //聲明其爲Bean實例
//在同樣的DataSource中,首先使用被標註的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 {
List filterList=new ArrayList<>();
filterList.add(wallFilter());
datasource.setProxyFilters(filterList);
// sql 監控
datasource.setFilters(filters);
} catch (Exception e) {
logger.error("druid configuration initialization filter", e);
}
datasource.setConnectionProperties(connectionProperties);
return datasource;
}
@Bean
public WallFilter wallFilter(){
WallFilter wallFilter=new WallFilter();
wallFilter.setConfig(wallConfig());
return wallFilter;
}
@Bean
public WallConfig wallConfig(){
WallConfig config =new WallConfig();
config.setMultiStatementAllow(true);//允許一次執行多條語句
config.setNoneBaseStatementAllow(true);//允許非基本語句的其他語句
return config;
}
@Bean(name = "masterTransactionManager")
public DataSourceTransactionManager adsTransactionManager(@Qualifier("dataSourceMaster") DataSource adsDataSource) {
return new DataSourceTransactionManager(adsDataSource);
}
@Bean(name = "masterSqlSessionFactory")
public SqlSessionFactory adsSqlSessionFactory(@Qualifier("dataSourceMaster") DataSource adsDataSource) throws Exception {
final SqlSessionFactoryBean sessionFactory = new SqlSessionFactoryBean();
sessionFactory.setDataSource(adsDataSource);
sessionFactory.setMapperLocations(new PathMatchingResourcePatternResolver()
.getResources(MasterDruidDBConfig.MAPPER_LOCATION));
return sessionFactory.getObject();
}
}
4、數據庫第二個連接
package com.zyj.config.druid;
import com.alibaba.druid.pool.DruidDataSource;
import com.alibaba.druid.wall.WallConfig;
import com.alibaba.druid.wall.WallFilter;
import org.apache.ibatis.session.SqlSessionFactory;
import org.mybatis.spring.SqlSessionFactoryBean;
import org.mybatis.spring.annotation.MapperScan;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Qualifier;
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 org.springframework.core.io.support.PathMatchingResourcePatternResolver;
import org.springframework.jdbc.datasource.DataSourceTransactionManager;
import javax.sql.DataSource;
import java.util.ArrayList;
import java.util.List;
@Configuration
@MapperScan(basePackages = slaveDruidDBConfig.PACKAGE,sqlSessionFactoryRef = "slaveSqlSessionFactory")
public class slaveDruidDBConfig {
private static Logger logger = LoggerFactory.getLogger(slaveDruidDBConfig.class);
static final String PACKAGE = "com.zyj.dao.slave";
static final String MAPPER_LOCATION = "classpath:mapper/slave/*.xml";
@Value("${spring.datasource.slave.url}")
private String dbUrl;
@Value("${spring.datasource.slave.username}")
private String username;
@Value("${spring.datasource.slave.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("${spring.datasource.maxPoolPreparedStatementPerConnectionSize}")
private int maxPoolPreparedStatementPerConnectionSize;
@Value("${spring.datasource.filters}")
private String filters;
@Value("{spring.datasource.connectionProperties}")
private String connectionProperties;
@Bean("dataSourceSlave") //聲明其爲Bean實例
@Primary
//在同樣的DataSource中,首先使用被標註的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 {
List filterList=new ArrayList<>();
filterList.add(wallFilter());
datasource.setFilters(filters);
datasource.setProxyFilters(filterList);
} catch (Exception e) {
logger.error("druid configuration initialization filter", e);
}
datasource.setConnectionProperties(connectionProperties);
return datasource;
}
@Bean
public WallFilter wallFilter(){
WallFilter wallFilter=new WallFilter();
wallFilter.setConfig(wallConfig());
return wallFilter;
}
@Bean
public WallConfig wallConfig(){
WallConfig config =new WallConfig();
config.setMultiStatementAllow(true);//允許一次執行多條語句
config.setNoneBaseStatementAllow(true);//允許非基本語句的其他語句
return config;
}
@Bean(name = "slaveTransactionManager")
@Primary
public DataSourceTransactionManager adsTransactionManager(@Qualifier("dataSourceSlave") DataSource adsDataSource) {
return new DataSourceTransactionManager(adsDataSource);
}
@Bean(name = "slaveSqlSessionFactory")
@Primary
public SqlSessionFactory adsSqlSessionFactory(@Qualifier("dataSourceSlave") DataSource adsDataSource) throws Exception {
final SqlSessionFactoryBean sessionFactory = new SqlSessionFactoryBean();
sessionFactory.setDataSource(adsDataSource);
sessionFactory.setMapperLocations(new PathMatchingResourcePatternResolver()
.getResources(slaveDruidDBConfig.MAPPER_LOCATION));
return sessionFactory.getObject();
}
}
5、application.properties 配置文件
spring.datasource.master.url=jdbc:postgresql://127.0.0.1:5432/master?allowMultiQueries=true
spring.datasource.master.username=postgres
spring.datasource.master.password=lcck1345
spring.datasource.slave.url=jdbc:postgresql://127.0.0.1:5432/slave?allowMultiQueries=true
spring.datasource.slave.username=postgres
spring.datasource.slave.password=lcck1345
# 連接池的配置信息
spring.datasource.type=com.alibaba.druid.pool.DruidDataSource
spring.datasource.driver-class-name=org.postgresql.Driver
# 初始化大小,最小,最大
spring.datasource.initialSize=1
spring.datasource.minIdle=1
spring.datasource.maxActive=10
# 配置獲取連接等待超時的時間
spring.datasource.maxWait=180000
# 配置間隔多久才進行一次檢測,檢測需要關閉的空閒連接,單位是毫秒
spring.datasource.timeBetweenEvictionRunsMillis=60000
# 配置一個連接在池中最小生存的時間,單位是毫秒
spring.datasource.minEvictableIdleTimeMillis=300000
spring.datasource.validationQuery=SELECT version()
spring.datasource.testWhileIdle=true
spring.datasource.testOnBorrow=false
spring.datasource.testOnReturn=false
# 打開PSCache,並且指定每個連接上PSCache的大小
spring.datasource.poolPreparedStatements=true
spring.datasource.maxPoolPreparedStatementPerConnectionSize=20
# 配置監控統計攔截的filters,去掉後監控界面sql無法統計,'wall'用於防火牆
spring.datasource.filters=stat,wall,log4j
# 通過connectProperties屬性來打開mergeSql功能;慢SQL記錄
spring.datasource.connectionProperties=druid.stat.mergeSql=true;druid.stat.slowSqlMillis=5000
6、如果還要監控與 spring 相關的東西 :druid-bean.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:aop="http://www.springframework.org/schema/aop" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop.xsd">
<!-- 配置_Druid和Spring關聯監控配置 -->
<bean id="druid-stat-interceptor"
class="com.alibaba.druid.support.spring.stat.DruidStatInterceptor"></bean>
<!-- 方法名正則匹配攔截配置 -->
<bean id="druid-stat-pointcut" class="org.springframework.aop.support.JdkRegexpMethodPointcut"
scope="prototype">
<property name="patterns">
<list>
<value>com.zyj.dao.*</value>
</list>
</property>
</bean>
<aop:config proxy-target-class="true">
<aop:advisor advice-ref="druid-stat-interceptor"
pointcut-ref="druid-stat-pointcut" />
</aop:config>
</beans>
7、springboot 入口類
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.web.servlet.ServletComponentScan;
import org.springframework.context.annotation.ImportResource;
/**
* ServletComponentScan
* druid監控頁面是一個servlet,需要讓SpingBoot支持servlet.在程序入口添加註解
*
* MapperScan("com.cmbird.dao")
* 掃描對應的包
*
* ImportResource(locations = { "classpath:druid-bean.xml" })
* 對於spring 監控 不需要可以不要
*
*/
@ServletComponentScan
@SpringBootApplication
@MapperScan("com.cmbird.dao")
@ImportResource(locations = { "classpath:druid-bean.xml" })
public class App {
public static void main(String[] args) {
SpringApplication.run(App.class);
}
}
三、使用
1、首先 包目錄結構如下。
注意 :包名 要和 數據庫 MasterDruidDBConfig.java 和 slaveDruidDBConfig.java 中 配置的package 包名一樣.
2.使用 按照正常方法使用 ;