在pom 文件中添加

  <dependency><groupId>log4j</groupId><artifactId>log4j</artifactId><version>1.2.17</version></dependency>

在resources目录下加上一个log4j的配置文件

log4j.rootLogger=DEBUG,Console
log4j.appender.Console=org.apache.log4j.ConsoleAppender
log4j.appender.Console.layout=org.apache.log4j.PatternLayout
log4j.appender.Console.layout.ConversionPattern=%d [%t] %-5p [%c] - %m%n
log4j.logger.org.apache=INFO

然后就解决了问题，不过，我只是在测试自定义druid的其他数据库属性

package cn.edu.aynu.config;import com.alibaba.druid.pool.DruidDataSource;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;import javax.sql.DataSource;@Configuration
public class druidConfig {@ConfigurationProperties(prefix = "spring.datasource")@Beanpublic DataSource druid(){return  new DruidDataSource();}
}

  initialSize: 5minIdle: 5maxActive: 20maxWait: 60000timeBetweenEvictionRunsMillis: 60000minEvictableIdleTimeMillis: 300000validationQuery: SELECT 1 FROM DUALtestWhileIdle: truetestOnBorrow: falsetestOnReturn: falsepoolPreparedStatements: true#   配置监控统计拦截的filters，去掉后监控界面sql无法统计，'wall'用于防火墙filters: stat,wall,log4jmaxPoolPreparedStatementPerConnectionSize: 20useGlobalDataSourceStat: trueconnectionProperties: druid.stat.mergeSql=true;druid.stat.slowSqlMillis=500

mysql的时区错误问题： The server time zone value 'ÖÐ¹ú±ê×¼Ê±¼ä' is unrecognized or represents more than one

url: jdbc:mysql://localhost:3306/mybatis?serverTimezone=UTC

Loading class `com.mysql.jdbc.Driver'. This is deprecated. The new driver class is `com.mysql.cj.jdbc.Driver'. The driver is automatically registered via the SPI and manual loading of the driver class is generally unnecessary.

现在按照最新官方提示支持将com.mysql.jdbc.Driver 改为 com.mysql.cj.jdbc.Driver

@RestController的作用相当于@Controller注解和@ResponseBody注解的同时使用的作用将返回的值写入到浏览器中

转载于:https://www.cnblogs.com/zhulina-917/p/10219426.html

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