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创建一个Spring Boot应用,导入相关依赖:
<!--因为配置中用到log4j进行日志监控而引入此依赖-->
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.17</version>
</dependency>
<!--引入Druid数据源-->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.1.10</version>
</dependency>
在application.yml文件中配置dataSource相关属性:注意属性名后的冒号和属性值之间有空格
spring:
datasource:
username: root
password: 1741248769
url: jdbc:mysql://localhost:3306/mybatis_database
driver-class-name: com.mysql.jdbc.Driver
type: com.alibaba.druid.pool.DruidDataSource
initialSize: 5
minIdle: 5
maxActive: 20
maxWait: 60000
timeBetweenEvictionRunsMillis: 60000
minEvictableIdleTimeMillis: 300000
validationQuery: SELECT 1 FROM DUAL
testWhileIdle: true
testOnBorrow: false
testOnReturn: false
poolPreparedStatements: true
filters: stat,wall ,log4j
maxPoolPreparedStatementPerConnectionSize: 20
useGlobalDataSourceStat: true
connectionProperties: druid.stat.mergeSql=true;druid.stat.slowSqlMillis=500
创建一个配置类:
@Configuration
public class DruidConfig {
@ConfigurationProperties(prefix = "spring.datasource")
@Bean
public DataSource druid() {
return new DruidDataSource();
}
//配置管理后台的StatViewServlet
@Bean
public ServletRegistrationBean servlet() {
ServletRegistrationBean servlet = new ServletRegistrationBean(new StatViewServlet(), "/druid/*");
Map<String, String> params = new HashMap<>();
//设置管理后台的用户名和密码
params.put("loginUsername", "pain");
params.put("loginPassword", "0110");
servlet.setInitParameters(params);
return servlet;
}
//配置监控的filter
@Bean
public FilterRegistrationBean filter() {
FilterRegistrationBean filter = new FilterRegistrationBean();
filter.setFilter(new WebStatFilter());
filter.setUrlPatterns(Arrays.asList("/*"));
Map<String, String> params = new HashMap<>();
//不拦截下列请求
params.put("exclusions", "*.js,*.css,/druid/*");
filter.setInitParameters(params);
return filter;
}
在测试类中测试数据源:
@Autowired
DataSource dataSource;
@Test
public void testDruid() {
System.out.println("当前使用的数据源是:" + dataSource);
}
测试结果:
获取数据源:class com.alibaba.druid.pool.DruidDataSource
获取连接:com.alibaba.druid.proxy.jdbc.ConnectionProxyImpl@44b18fe4
在浏览器中输入http://localhost:8080/druid,使用之前设置的用户名和密码登录管理后台
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