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引入pom.xml檔案

 <!-- alibaba 連線池 -->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
            <version>1.1.10</version>
        </dependency>
 

修改配置檔案：

#埠設定
server:
  port: 9999
#mybatis連線設定
spring:
  datasource: 
    type: com.alibaba.druid.pool.DruidDataSource
    url: jdbc:mysql://127.0.0.1:3306/ehuoyuan?useUnicode=true&characterEncoding=utf8
    username: root
    password: 123456
    driver-class-name: com.mysql.jdbc.Driver
    maxActive: 20                                        #最大活躍度
    initialSize: 1                                       #初始化數量
    maxWait: 60000                                       #超時配置
    poolPreparedStatements: true                         #開啟PSCache
    maxPoolPreparedStatementPerConnectionSize: 20        #制定每個PSCache 大小
    validation-query: select 1
    validationQueryTimeout: 5
    testWhileIdle: true
#mybatis 配置檔案對映
mybatis:
 mapper-locations: classpath*:mapper/**/*.xml
 

新增讀取配置檔案類：

import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import com.alibaba.druid.pool.DruidDataSource;

@Configuration
public class DruidConfiguration {
	 @ConfigurationProperties(prefix = "spring.datasource")
	 @Bean
	 public DruidDataSource druid() {
	        return new DruidDataSource();
	}
}
 

執行驗證： 

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