SpringBoot详解如何进行整合Druid数据源

2022-11-13 11:11:48 整合数据源详解

1.自定义方式

使用自定义方式整合Druid

1.添加依赖

在pom.xml添加相关依赖

  <!--数据库相关-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jdbc</artifactId>
        </dependency>
        <dependency>
            <groupId>Mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.6</version>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
            <version>1.2.6</version>
        </dependency>
    </dependencies>

2.编写配置

application.properties

server.port=8080
spring.datasource.url=jdbc:mysql://localhost:3306/db_springtest?useUnicode=true&characterEncoding=utf8
spring.datasource.username=root
spring.datasource.passWord=123456
spring.datasource.driver-class-name=com.mysql.jdbc.Driver

配置Druid的监控页功能：

Druid内置提供了一个StatViewServlet用于展示Druid的统计信息。官方文档 - 配置StatViewServlet

这个StatViewServlet的用途包括：

提供监控信息展示的html页面
提供监控信息的JSON api

Druid内置提供一个StatFilter，用于统计监控信息。官方文档 - 配置_StatFilter

WEBStatFilter用于采集web-jdbc关联监控的数据，如SQL监控、URI监控。官方文档 - 配置WebStatFilter

Druid提供了WallFilter，它是基于SQL语义分析来实现防御SQL注入攻击的。官方文档 - 配置 wallfilter

DataSourceConfig

package com.limi.SpringBoottest2.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;
import java.sql.SQLException;
import java.util.Arrays;
@Configuration
public class DataSourceConfig {
    @Bean
    @ConfigurationProperties("spring.datasource")//复用配置文件的数据源配置, 这样就不用写代码一个一个set了
    public DataSource dataSource() throws SQLException {
        DruidDataSource druidDataSource = new DruidDataSource();
        //加入监控和防火墙功能功能
        druidDataSource.setFilters("stat,wall");
        return druidDataSource;
    }
    
    @Bean
    public ServletRegistrationBean statViewServlet(){
        StatViewServlet statViewServlet = new StatViewServlet();
        ServletRegistrationBean<StatViewServlet> registrationBean =
                new ServletRegistrationBean<>(statViewServlet, "/druid
    @Bean
    public FilterRegistrationBean webStatFilter(){
        WebStatFilter webStatFilter = new WebStatFilter();
        FilterRegistrationBean<WebStatFilter> filterRegistrationBean = new FilterRegistrationBean<>(webStatFilter);
        filterRegistrationBean.setUrlPatterns(Arrays.asList("/*"));
        filterRegistrationBean.addInitParameter("exclusions","*.js,*.gif,*.jpg,*.png,*.CSS,*.ico,/druid/*");
        return filterRegistrationBean;
    }
}

3.测试

HelloController

package com.limi.springboottest2.controller;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.ResponseBody;
@Controller
public class HelloController {
    @Autowired
    private JdbcTemplate jdbcTemplate;
    @ResponseBody
    @GetMapping("/sql")
    public String test1(){
        String sql = "select count(*) from t_user";
        Long i = jdbcTemplate.queryForObject(sql, Long.class);
        return i.toString();
    }
}

多次点击刷新进行访问

登录druid后台查看监控信息

账号admin, 密码123456

2.starter方式(推荐)

使用场景启动器整合druid, 效果和自定义方式一样, 但更加方便

1.添加依赖

在pom.xml添加相关依赖

        <!--数据库相关-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jdbc</artifactId>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.6</version>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid-spring-boot-starter</artifactId>
            <version>1.1.17</version>
        </dependency>

pom.xml完整内容如下

<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.7.0</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.limi</groupId>
    <artifactId>springboot-test2</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>springboot-test2</name>
    <description>Demo project for Spring Boot</description>
    <properties>
        <java.version>1.8</java.version>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <scope>runtime</scope>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-configuration-processor</artifactId>
            <optional>true</optional>
        </dependency>
        <!--数据库相关-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jdbc</artifactId>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.6</version>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid-spring-boot-starter</artifactId>
            <version>1.1.17</version>
        </dependency>
    </dependencies>
    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <configuration>
                    <excludes>
                        <exclude>
                            <groupId>org.projectlombok</groupId>
                            <artifactId>lombok</artifactId>
                        </exclude>
                    </excludes>
                </configuration>
            </plugin>
            <!-- 下面插件作用是工程打包时，不将spring-boot-configuration-processor打进包内，让其只在编码的时候有用 -->
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <configuration>
                    <excludes>
                        <exclude>
                            <groupId>org.springframework.boot</groupId>
                            <artifactId>spring-boot-configuration-processor</artifactId>
                        </exclude>
                    </excludes>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

2.编写配置

application.properties

server.port=8080
spring.datasource.url=jdbc:mysql://localhost:3306/db_springtest?useUnicode=true&characterEncoding=utf8
spring.datasource.username=root
spring.datasource.password=123456
spring.datasource.driver-class-name=com.mysql.jdbc.Driver

#监控SpringBean
spring.datasource.druid.aop-patterns=com.limi.springboottest2.*
# 底层开启功能，stat（sql监控），wall（防火墙）
spring.datasource.druid.filters=stat,wall

# 配置监控页功能
spring.datasource.druid.stat-view-servlet.enabled=true
spring.datasource.druid.stat-view-servlet.login-username=admin
spring.datasource.druid.stat-view-servlet.login-password=123456
spring.datasource.druid.stat-view-servlet.reset-enable=false

# 监控web
spring.datasource.druid.web-stat-filter.enabled=true
spring.datasource.druid.web-stat-filter.url-pattern=/*
spring.datasource.druid.web-stat-filter.exclusions='*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid/*'

# 对上面filters里面的stat的详细配置
spring.datasource.druid.filter.stat.slow-sql-millis=1000
spring.datasource.druid.filter.stat.log-slow-sql=true
spring.datasource.druid.filter.stat.enabled=true
spring.datasource.druid.filter.wall.enabled=true
spring.datasource.druid.filter.wall.config.drop-table-allow=false

3.测试

HelloController

package com.limi.springboottest2.controller;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.ResponseBody;
@Controller
public class HelloController {
    @Autowired
    private JdbcTemplate jdbcTemplate;
    @ResponseBody
    @GetMapping("/sql")
    public String test1(){
        String sql = "select count(*) from t_user";
        Long i = jdbcTemplate.queryForObject(sql, Long.class);
        return i.toString();
    }
}

多次点击刷新进行访问

登录druid后台查看监控信息

账号admin, 密码123456

到此这篇关于SpringBoot详解如何进行整合Druid数据源的文章就介绍到这了,更多相关SpringBoot Druid数据源内容请搜索以前的文章或继续浏览下面的相关文章希望大家以后多多支持！

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SpringBoot详解如何进行整合Druid数据源

目录

1.自定义方式

1.添加依赖

2.编写配置

3.测试

2.starter方式(推荐)

1.添加依赖

2.编写配置

3.测试