SpringBoot发现最新版Druid重大问题(坑)

发现Druid问题

最近做项目，遇到大量插入的地方，经过大量的调试，最终发现是Druid连接池的问题，（以前一个大项目就遇到过Druid的坑），果断换成c3p0之后，压力测试哗哗上去了。

下面是更换c3p0方法。

1.修改pom.xml

导入c3p0依赖：

<dependency>
  <groupId>com.mchange</groupId>
  <artifactId>c3p0</artifactId>
  <version>0.9.5.5</version>
</dependency>

2.修改application.yml

spring:
 application:
  name: nh-tst
 http:
  encoding:
   charset: UTF-8
   enabled: true
   force: true
 datasource:
  driver-class-name: oracle.jdbc.driver.OracleDriver
 jpa:
  hibernate:
   ddl-auto: none
  show-sql: true
c3p0:
 jdbcUrl: jdbc:oracle:thin:@xxxxx:1522/prodpdb1
 user: xxxxxx
 password: xxxxxx
 driverClass: oracle.jdbc.driver.OracleDriver
 minPoolSize: 3
 maxPoolSize: 30
 maxIdleTime: 1800000
 acquireIncrement: 120
 maxStatements: 100000
 initialPoolSize: 5
 idleConnectionTestPeriod: 60
 acquireRetryAttempts: 30
 acquireRetryDelay: 10000
 breakAfterAcquireFailure: false
 testConnectionOnCheckout: false

3.增加DataSourceConfiguration.java类

package com.nh.fk.tst.config;

import javax.sql.DataSource;

import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.boot.jdbc.DataSourceBuilder;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;
import com.mchange.v2.c3p0.ComboPooledDataSource;

@Configuration
public class DataSourceConfiguration {
 // c3p0 连接池
 @Bean(name = "dataSource")
 @Qualifier(value = "dataSource")
 @Primary
 @ConfigurationProperties(prefix = "c3p0")
 public DataSource dataSource() {
 return DataSourceBuilder.create().type(ComboPooledDataSource.class).build();
 }
}

打包，执行：世界又恢复了和平！！

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