标签:set 代码 ppi cat row integer ace 官网文档 启动
后段接口响应慢,通常我们就需要优化代码和sql,如果项目中使用druid连接池,那么我们可以利用其提供的sql监控功能,来帮助我们快速定位慢sql已经sql执行次数等问题,springboot2之后,durid监控配置变的更简单了,不需要额外的代码,只需要添加配置即可。整个项目配置如下:
依赖
<dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>com.alibaba</groupId> <artifactId>druid-spring-boot-starter</artifactId> <version>1.1.10</version> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-jpa</artifactId> </dependency> <dependency> <groupId>org.postgresql</groupId> <artifactId>postgresql</artifactId> <scope>runtime</scope> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency>
application.yml
spring: datasource: druid: url: jdbc:postgresql://127.0.0.1:5432/test01?characterEncoding=utf-8 username: admin password: 123456 driver-class-name: org.postgresql.Driver initial-size: 1 max-active: 20 max-wait: 6000 pool-prepared-statements: true max-pool-prepared-statement-per-connection-size: 20 connection-properties: druid.stat.mergeSql=true;druid.stat.slowSqlMillis=2000 min-idle: 1 time-between-eviction-runs-millis: 60000 min-evictable-idle-time-millis: 300000 validation-query: select 1 test-while-idle: true test-on-borrow: false test-on-return: false web-stat-filter: enabled: true url-pattern: "/*" exclusions: "*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid/*" session-stat-max-count: 1000 session-stat-enable: true profile-enable: true stat-view-servlet: enabled: true url-pattern: "/druid/*" login-username: root login-password: root allow: 127.0.0.1 reset-enable: true type: com.alibaba.druid.pool.DruidDataSource url: username: admin password: 123456 driver-class-name: filters: stat,wall,slf4j maxActive: 20 jpa: database: postgresql show-sql: true properties: hibernate: temp: use_jdbc_metadata_defaults: false
测试添加的相关类
package com.junlin.druid.Entity; import javax.persistence.*; import java.io.Serializable; @Entity @Table(name="newtable") public class DemoEntity implements Serializable { @Id @GeneratedValue @Column(name="id") private int id; @Column(name="name") private String name; public int getId() { return id; } public void setId(int id) { this.id = id; } public String getName() { return name; } public void setName(String name) { this.name = name; } }
package com.junlin.druid.Dao; import com.junlin.druid.Entity.DemoEntity; import org.springframework.data.jpa.repository.JpaRepository; import java.util.List; public interface DemoJPA extends JpaRepository<DemoEntity,Integer> { List<DemoEntity> findByName(String name); }
package com.junlin.druid.Controller; import com.junlin.druid.Dao.DemoJPA; import com.junlin.druid.Entity.DemoEntity; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.web.bind.annotation.GetMapping; import org.springframework.web.bind.annotation.RestController; import java.util.List; @RestController public class DemoController { @Autowired private DemoJPA demoJPA; @GetMapping("/findName") public Object findEntity(String name){ List<DemoEntity> list = demoJPA.findByName(name); return list; } }
启动项目,访问localhost:8080/druid/,进入登陆页面输入在application.yml配置好的用户和密码(demo中都是root),即可看到监控页面
访问一下我们准备好的接口,执行几次sql查询,在监控页面点看sql监控页面,就能看到我们的sql执行情况
其它相关的配置以及页面相关内容可以参考druid官网文档,地址https://github.com/alibaba/druid/wiki/常见问题
标签:set 代码 ppi cat row integer ace 官网文档 启动
原文地址:https://www.cnblogs.com/hhhshct/p/11378770.html