No 3. Integrate Druid MySql data connection pool

No 3. Integrate Druid MySql data connection pool

Reference: https://www.cnblogs.com/teacher11/p/15222574.html

1. Add dependencies

 <!-- Ali database connection pool fhadmin.cn -->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid-spring-boot-starter</artifactId>
            <version>1.1.22</version>
        </dependency>

2. Configure connection pool monitoring html

Access link: http://127.0.0.1:9527/druid/datasource.html

2.1 Bean configuration

Update: application.properties

server.port=9527

# =======ali mysql datasource ========================#
spring.datasource.type=com.alibaba.druid.pool.DruidDataSource

# ================================ MySQL ================= ==================================================== ===========

spring.datasource.url = jdbc:mysql://127.0.0.1:3306/jwtdb?serverTimezone=GMT+8 &useUnicode=true &characterEncoding=utf-8
spring.datasource.username=root
spring.datasource.password=password
spring.datasource.driverClassName=com.mysql.cj.jdbc.Driver

# ===================================== JPA ============== ==================================================== =================
#Specify the DBMS
spring.jpa.database=MYSQL
# Show or not log for each sql query  sql 
spring.jpa.show-sql=true
# Hibernate ddl auto (create, create-drop, update)  create ?create?
spring.jpa.hibernate.ddl-auto=update
# Naming strategy
spring.jpa.hibernate.naming-strategy=org.hibernate.cfg.DefaultNamingStrategy
# stripped before adding them to the entity manager 
#spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.MySQL5Dialect
spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.MySQL5InnoDBDialect

New configuration class: DataSource_Druid_Configure

package com.example.createpj.data.utils.config.mysql;

import com.alibaba.druid.pool.DruidDataSource;
import com.alibaba.druid.support.http.StatViewServlet;
import com.alibaba.druid.support.http.WebStatFilter;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.boot.web.servlet.FilterRegistrationBean;
import org.springframework.boot.web.servlet.ServletRegistrationBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import java.util.Arrays;
import java.util.HashMap;
import java.util.Map;

@Configuration //Indicates the configuration class
public class DataSource_Druid_Configure {

    @ConfigurationProperties(prefix = "spring.datasource")
    @Bean
    public DruidDataSource getDataSource() {
        return new DruidDataSource();
    }

    //Configure Druid monitoring
    //1. Configure a Servlet that manages the background
    @Bean
    public ServletRegistrationBean statViewServlet() {
        ServletRegistrationBean bean =new ServletRegistrationBean(new StatViewServlet(),"/druid/*");
        Map<String, String> initParams=new HashMap<>();
        initParams.put("loginUsername", "admin");//login user name
        initParams.put("loginPassword", "123456");//login password
        initParams.put("allow", "");//The default is to allow all access
        initParams.put("deny", "192.168.15.21");//deny access

        bean.setInitParameters(initParams);
        return bean;
    }


    //2. Configure a filter for web monitoring
    @Bean
    public FilterRegistrationBean webStatFilter() {
        FilterRegistrationBean bean=new FilterRegistrationBean();
        bean.setFilter(new WebStatFilter());
        Map<String, String>initParams=new HashMap<>();
        initParams.put("exclusions", "*.js,*.css,/druid/*");
        bean.setInitParameters(initParams);
        bean.setUrlPatterns(Arrays.asList("/*"));
        return bean;
    }

}

2.2 application.properties configuration method

server.port=9527
# ================================ MySQL ================= ==================================================== ===========
#spring.datasource.url = jdbc:mysql://127.0.0.1:3306/jwtdb?serverTimezone=GMT+8 &useUnicode=true &characterEncoding=utf-8
#spring.datasource.username=root
#spring.datasource.password = password
#spring.datasource.driverClassName=com.mysql.cj.jdbc.Driver
#================================druid monitor=================== ========================================
spring.datasource.type=com.alibaba.druid.pool.DruidDataSource
spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
spring.datasource.druid.url=jdbc:mysql://127.0.0.1:3306/jwtdb?serverTimezone=GMT+8 &useUnicode=true &characterEncoding=utf-8
spring.datasource.druid.username=root
spring.datasource.druid.password=Lucheng247
## ?
spring.datasource.druid.initialSize=5
#?
spring.datasource.druid.minIdle=5
# ?
spring.datasource.druid.maxActive=20
## 
spring.datasource.druid.maxWait=60000
spring.datasource.druid.timeBetweenEvictionRunsMillis=60000
#spring.datasource.druid.maxEvictableIdleTimeMillis=60000
spring.datasource.druid.validationQuery=SELECT 1 FROM DUAL
spring.datasource.druid.testWhileIdle=true
spring.datasource.druid.testOnBorrow=true
spring.datasource.druid.testOnReturn=true

spring.datasource.druid.webStatFilter.enabled=true
spring.datasource.druid.webStatFilter.profile-enable=true
spring.datasource.druid.webStatFilter.url-pattern=/*
spring.datasource.druid.webStatFilter.exclusions='*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid/*'

spring.datasource.druid.statViewServlet.enabled=true
spring.datasource.druid.statViewServlet.allow=
spring.datasource.druid.statViewServlet.deny=192.168.2.61
spring.datasource.druid.statViewServlet.url-pattern=/druid/*
spring.datasource.druid.statViewServlet.login-username=druid
spring.datasource.druid.statViewServlet.login-password=druid
spring.datasource.druid.statViewServlet.reset-enable=true

spring.datasource.druid.filter.stat.enabled=true
spring.datasource.druid.filter.stat.log-slow-sql=true
spring.datasource.druid.filter.stat.slow-sql-millis=1000
spring.datasource.druid.filter.stat.merge-sql=true

spring.datasource.druid.filter.wall.config.multi-statement-allow=true
# ===================================== JPA ============== ==================================================== =================
#Specify the DBMS
spring.jpa.database=MYSQL
# Show or not log for each sql query  sql 
spring.jpa.show-sql=true
# Hibernate ddl auto (create, create-drop, update)  create ?create?
spring.jpa.hibernate.ddl-auto=update
# Naming strategy
spring.jpa.hibernate.naming-strategy=org.hibernate.cfg.DefaultNamingStrategy
# stripped before adding them to the entity manager 
#spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.MySQL5Dialect
spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.MySQL5InnoDBDialect