SpringBoot_08_整合Druid

SpringBoot_08_整合Druid

参考: 蕃薯耀

补充

在SpringBoot1.5版本整合Druid(1.1.10)时,即使在配置文件中配置了validation-query和test-while-idle,也会在控制台报错ERROR: testWhileIdle is true, validationQuery not set,这是因为没有手动配置Druid的属性

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.util.Collections;
import java.util.HashMap;
import java.util.Map;

@Configuration
public class DruidConfiguration {

    /**
     * 配置Druid的属性，和DataSource进行绑定，前缀设置为：spring.datasource
     * 不配置的话，很多初始化的属性是没有绑定的
     *
     * @return
     */
    @Bean
    @ConfigurationProperties(prefix = "spring.datasource")
    public DataSource druid() {
        DruidDataSource druidDataSource = new DruidDataSource();
        druidDataSource.setTestWhileIdle(true);
        druidDataSource.setTestOnBorrow(false);
        druidDataSource.setTestOnReturn(false);
        druidDataSource.setValidationQuery("select 1 from dual");
        return druidDataSource;
    }

    /**
     * 配置druid监控
     * 配置一个管理后台的servlet
     * 访问地址：http://localhost:8080/druid/
     *
     * @return
     */
    @Bean
    public ServletRegistrationBean statViewServlet() {
        ServletRegistrationBean bean = new ServletRegistrationBean(new StatViewServlet(), "/druid/*");
        Map<String, String> initParameters = new HashMap<>();
        //属性见：com.alibaba.druid.support.http.ResourceServlet
        initParameters.put("loginUsername", "admin");
        initParameters.put("loginPassword", "123456");
        //默认允许所有
        initParameters.put("allow", "");
        initParameters.put("deny", "");
        bean.setInitParameters(initParameters);
        return bean;
    }

    /**
     * 配置一个web监控的filter
     *
     * @return
     */
    @Bean
    public FilterRegistrationBean webStatFilter() {
        FilterRegistrationBean filterBean = new FilterRegistrationBean();
        filterBean.setFilter(new WebStatFilter());
        filterBean.setUrlPatterns(Collections.singletonList("/*"));

        Map<String, String> initParameters = new HashMap<>();
        //属性见：com.alibaba.druid.support.http.WebStatFilter
        initParameters.put("exclusions", "*.js,*.css,/druid/*");
        filterBean.setInitParameters(initParameters);

        return filterBean;
    }

}