Springboot 整合 druid
阿新 • • 發佈:2018-12-10
前言
druid是非常好用的資料庫連線池,提供了強大的監控和擴充套件
一、建立springboot專案
我是用的idea建立的,當然也可以去spring的官網建立也很方便https://start.spring.io/
填寫自己的專案
選擇web,mysql(當然也可以不選,自己在pom.xml裡新增)
刪除這幾個不用
二、新增druid的依賴
<dependency> <groupId>com.alibaba</groupId> <artifactId>druid</artifactId> <version>1.1.6</version> </dependency>
完整的pom.xml
<?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.example</groupId> <artifactId>demo</artifactId> <version>0.0.1-SNAPSHOT</version> <packaging>jar</packaging> <name>demo</name> <description>Demo project for Spring Boot</description> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.0.5.RELEASE</version> <relativePath/> <!-- lookup parent from repository --> </parent> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> <java.version>1.8</java.version> </properties> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <!-- https://mvnrepository.com/artifact/com.alibaba/druid --> <dependency> <groupId>com.alibaba</groupId> <artifactId>druid</artifactId> <version>1.1.6</version> </dependency> <!-- mysql依賴 --> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <scope>runtime</scope> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> </plugin> </plugins> </build> </project>
修改配置檔案。application.yml
server: port: 8077 servlet: context-path: /demo spring: datasource: driver-class-name: com.mysql.jdbc.Driver url: jdbc:mysql://127.0.0.1:3306/beetl?useUnicode=true&characterEncoding=utf8&useSSL=true username: root password: root initial-size: 5 max-active: 20 min-idle: 10 max-wait: 10 filters: stat,wall filter.stat.log-slow-sql: true filter.stat.slow-sql-millis: 2000
三、註冊bean
package com.example.demo.config;
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 javax.sql.DataSource;
/**
* =========================================
* Druid連線池
*
* @Author: ErickWu
* @CreateDate: 2018-09-27 12:22
* @Version: 1.0
* Copyright: Copyright (c) 2018-09-27 12:22
* =========================================
*/
@Configuration
public class DruidConfig {
/**
* 註冊資料來源
* 這裡返回DataSource,idea會提示initMethod和destroyMethod cannot resolve method
* 並不影響,因為方法是在子類DruidDataSource裡,如果返回值為DruidDataSource則不會提示
* @return
*/
@Bean(destroyMethod = "close", initMethod = "init")
@ConfigurationProperties(prefix = "spring.datasource")
public DataSource druidDataSource(){
return new DruidDataSource();
}
/**
* 註冊一個StatViewServlet
* @return
*/
@Bean
public ServletRegistrationBean druidStatViewServlet(){
//org.springframework.boot.context.embedded.ServletRegistrationBean提供類的進行註冊.
ServletRegistrationBean servletRegistrationBean = new ServletRegistrationBean(new StatViewServlet(),"/druid/*");
//新增初始化引數:initParams
//白名單:
servletRegistrationBean.addInitParameter("allow","127.0.0.1");
//IP黑名單 (存在共同時,deny優先於allow) : 如果滿足deny的話提示:Sorry, you are not permitted to view this page.
servletRegistrationBean.addInitParameter("deny","192.168.1.73");
//登入檢視資訊的賬號密碼.
servletRegistrationBean.addInitParameter("loginUsername","admin");
servletRegistrationBean.addInitParameter("loginPassword","123456");
//是否能夠重置資料.
servletRegistrationBean.addInitParameter("resetEnable","false");
return servletRegistrationBean;
}
/**
* 註冊一個:filterRegistrationBean
* @return
*/
@Bean
public FilterRegistrationBean druidStatFilter(){
FilterRegistrationBean filterRegistrationBean = new FilterRegistrationBean(new WebStatFilter());
//新增過濾規則.
filterRegistrationBean.addUrlPatterns("/*");
//新增不需要忽略的格式資訊.
filterRegistrationBean.addInitParameter("exclusions","*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid/*");
return filterRegistrationBean;
}
}
四、啟動,訪問
賬號:admin
密碼:123456
成功訪問,監控效果也很出色,到此druid整合完成。
最後附上專案結構
這裡面參考了很多人的文件,吸收了各自比較好的地方,最後成了這篇文章。