: No enum constant com.mysql.cj.conf.PropertyDefinitions.ZeroDatetimeBehavior.CONVERTTONULLMySQLconvertToNullCONVERT_TO_NULL. MySQLutf-8IDEutf-8MySQLurlcharacterEncoding=UTF-8 direct mapping JDBCcom.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failuremysqljareclipseideausername CREATE DATABASE ssmdemo; DROP TABLE IF EXISTS tb_user; CREATE TABLE tb_user ( id char(32) NOT NULL, user_name varchar(32) DEFAULT NULL, password varchar(32) DEFAULT NULL, name varchar(32) DEFAULT NULL, age int(10) DEFAULT NULL, sex int(2) DEFAULT NULL, birthday date DEFAULT NULL, created MySQLutf-8IDEutf-8MySQLurlcharacterEncoding=UTF-8 Sqoop is a tool designed to transfer data between Hadoop and relational databases or mainframes. But when I switch jdbc pool to DBCP, the issue get MyBatis PlusSQL [TOC] MyBatisDaoBaseMapper . 0DATETIMEMySQL MySQLutf-8IDEutf-8MySQLurlcharacterEncoding=UTF-8 SQL MySQLOracleSqlServerPostgreSQL SQL JeeSite 1 MySql RuoYi Java EE Spring BootApache ShiroMyBatisThymeleafBootstrap 1MySQL WorkbenchNavicat 2MySQLmysql-connector-java8.0.13driver-class-namecom.mysql.cj.jdbc.Driver com.mysql.jdbc.ConnectionPropertiesTransform1URL zeroDateTimeBehavior . JDBCcom.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failuremysqljareclipseideausername xiaobaohaohao: #. VsCodeSpringBoot()jdk1.OpenJDK2.Java SE Development Kit 8maven1.2.()3.settings.xmlgit1.git2.TortoiseGit()vscodespringboot1.2.maven3.springboot4.java5.6.springbootGit The driver has not received any packets from the server. jdbcoracleurl: Oracle JDBC Thin using an SID: jdbc:oracle:thin:@host:port:SID Example: jdbc:oracle:thin:@localhost:1521:orcl oraclesid sqlplus / as sys W3CRDB2RDFRDFd2rqMysqlRDF . urljdbcjdbcmysqlmysql;localhost3306test1characterEncodingserverTimezoneGMT%2B88 jdbcoracleurl: Oracle JDBC Thin using an SID: jdbc:oracle:thin:@host:port:SID Example: jdbc:oracle:thin:@localhost:1521:orcl oraclesid sqlplus / as sys familymonitor_v2 orderpayment mysql root tb_coupon_info orderpayment tb_rus_worldcup_team_infofamilymonitor_v2 jdk1.7 mysql5.7 spring boot mybatis + demosql.sql Unless otherwise noted, zeroDateTimeBehavior: EXCEPTION: 3.1.4: Table 6.12 High Availability and Clustering Properties. But when I switch jdbc pool to DBCP, the issue get 1mysql82424 23 JDBCcom.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failuremysqljareclipseideausername Sqoop is a tool designed to transfer data between Hadoop and relational databases or mainframes. xiaobaohaohao: mysqlurlmysqlurlurlmysqljdbcurl. 0DATETIMEMySQL Mybatis-PlusMybatisMybatis-Plus configLocation MyBatisMyBatisconfigLocationMyBatisConfigurationMyBatis Spring Boot mybatis-plus.config-location=classpath:mybatis-config.xml myEclipse10java java.sql.SQLException: Access denied for user 'root'@'localhost' (using password: YES) db.propertiesmysql Developing a Java EE application I get the next warning: WARN: HHH000402: Using Hibernate built-in connection pool (not for production use!) I have encountered an issue, that is, tomcat jdbc pool cooperating with hibernate caches query results, but I have banned hibernate's cache. IDEASpringBootmybatisspringboot+mybatis () mysql5.7()mysql5.7 IDEAmysql IDEADatabase+mysql com.mysql.jdbc.ConnectionPropertiesTransform1URL zeroDateTimeBehavior . 1mysql82424 23 FreeRtos. Exception in thread "main" com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure The last packet sent successfully to the server was 0 milliseconds ago. FreeRtos. You can use Sqoop to import data from a relational database management system (RDBMS) such as MySQL or Oracle or a mainframe into the Hadoop Distributed File System (HDFS), transform the data in Hadoop MapReduce, and then export the data back into an RDBMS. Unless otherwise noted, zeroDateTimeBehavior: EXCEPTION: 3.1.4: Table 6.12 High Availability and Clustering Properties. 0DATETIMEMySQL You can use Sqoop to import data from a relational database management system (RDBMS) such as MySQL or Oracle or a mainframe into the Hadoop Distributed File System (HDFS), transform the data in Hadoop MapReduce, and then export the data back into an RDBMS. Developing a Java EE application I get the next warning: WARN: HHH000402: Using Hibernate built-in connection pool (not for production use!) Environment HikariCP version: 2.7.3 JDK version: 1.8.0_121 Database: MySQL Driver version: x.x.x Hibernate version: 5.1.10.Final Tomcat version: 8.5.23 After a few hours running, my application stop working. : No enum constant com.mysql.cj.conf.PropertyDefinitions.ZeroDatetimeBehavior.CONVERTTONULLMySQLconvertToNullCONVERT_TO_NULL. Developing a Java EE application I get the next warning: WARN: HHH000402: Using Hibernate built-in connection pool (not for production use!) IDEASpringBootmybatisspringboot+mybatis familymonitor_v2 orderpayment mysql root tb_coupon_info orderpayment tb_rus_worldcup_team_infofamilymonitor_v2 jdk1.7 mysql5.7 spring boot mybatis + demosql.sql Configuration properties define how Connector/J will make a connection to a MySQL server. Exception in thread "main" com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure The last packet sent successfully to the server was 0 milliseconds ago. 1MySQL WorkbenchNavicat 2MySQLmysql-connector-java8.0.13driver-class-namecom.mysql.cj.jdbc.Driver mysql mysql-connector-java 5.1.38 Since Spring boot was expecting a newer mysql-java-connector, which has been renamed to com.mysql.cj.jdbc.Driver, I also had to add the spring datasource driver-class-name setting in my spring boot db config. FreeRtos. RuoYi Java EE Spring BootApache ShiroMyBatisThymeleafBootstrap I have encountered an issue, that is, tomcat jdbc pool cooperating with hibernate caches query results, but I have banned hibernate's cache. I have encountered an issue, that is, tomcat jdbc pool cooperating with hibernate caches query results, but I have banned hibernate's cache. Environment HikariCP version: 2.7.3 JDK version: 1.8.0_121 Database: MySQL Driver version: x.x.x Hibernate version: 5.1.10.Final Tomcat version: 8.5.23 After a few hours running, my application stop working. MyBatis PlusSQL [TOC] MyBatisDaoBaseMapper . Druid(mysql),~~1 DruidDruid ()OLAP(MOLAP). VsCodeSpringBoot()jdk1.OpenJDK2.Java SE Development Kit 8maven1.2.()3.settings.xmlgit1.git2.TortoiseGit()vscodespringboot1.2.maven3.springboot4.java5.6.springbootGit SQL MySQLOracleSqlServerPostgreSQL SQL JeeSite 1 MySql Sqoop is a tool designed to transfer data between Hadoop and relational databases or mainframes. Name Default Value Since Version; autoReconnect: false: 1.1: autoReconnectForPools: false: The driver has not received any packets from the server. mysqlurlmysqlurlurlmysqljdbcurl. Environment HikariCP version: 2.7.3 JDK version: 1.8.0_121 Database: MySQL Driver version: x.x.x Hibernate version: 5.1.10.Final Tomcat version: 8.5.23 After a few hours running, my application stop working. W3CRDB2RDFRDFd2rqMysqlRDF . () mysql5.7()mysql5.7 IDEAmysql IDEADatabase+mysql mysqlurlmysqlurlurlmysqljdbcurl. mysql mysql-connector-java 5.1.38 Since Spring boot was expecting a newer mysql-java-connector, which has been renamed to com.mysql.cj.jdbc.Driver, I also had to add the spring datasource driver-class-name setting in my spring boot db config. RuoYi Java EE Spring BootApache ShiroMyBatisThymeleafBootstrap : No enum constant com.mysql.cj.conf.PropertyDefinitions.ZeroDatetimeBehavior.CONVERTTONULLMySQLconvertToNullCONVERT_TO_NULL. 1.3.. xiaobaohaohao: com.mysql.jdbc.ConnectionPropertiesTransform1URL zeroDateTimeBehavior . urljdbcjdbcmysqlmysql;localhost3306test1characterEncodingserverTimezoneGMT%2B88 CREATE DATABASE ssmdemo; DROP TABLE IF EXISTS tb_user; CREATE TABLE tb_user ( id char(32) NOT NULL, user_name varchar(32) DEFAULT NULL, password varchar(32) DEFAULT NULL, name varchar(32) DEFAULT NULL, age int(10) DEFAULT NULL, sex int(2) DEFAULT NULL, birthday date DEFAULT NULL, created MyBatis PlusSQL [TOC] MyBatisDaoBaseMapper . 1mysql82424 23 jdbcoracleurl: Oracle JDBC Thin using an SID: jdbc:oracle:thin:@host:port:SID Example: jdbc:oracle:thin:@localhost:1521:orcl oraclesid sqlplus / as sys direct mapping But when I switch jdbc pool to DBCP, the issue get urljdbcjdbcmysqlmysql;localhost3306test1characterEncodingserverTimezoneGMT%2B88 Exception in thread "main" com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure The last packet sent successfully to the server was 0 milliseconds ago. Druid(mysql),~~1 DruidDruid ()OLAP(MOLAP). JeeSite SQL MySQLOracleSqlServerPostgreSQL SQL () mysql5.7()mysql5.7 IDEAmysql IDEADatabase+mysql myEclipse10java java.sql.SQLException: Access denied for user 'root'@'localhost' (using password: YES) db.propertiesmysql 1.3.. Mybatis-PlusMybatisMybatis-Plus configLocation MyBatisMyBatisconfigLocationMyBatisConfigurationMyBatis Spring Boot mybatis-plus.config-location=classpath:mybatis-config.xml VsCodeSpringBoot()jdk1.OpenJDK2.Java SE Development Kit 8maven1.2.()3.settings.xmlgit1.git2.TortoiseGit()vscodespringboot1.2.maven3.springboot4.java5.6.springbootGit Mybatis-PlusMybatisMybatis-Plus configLocation MyBatisMyBatisconfigLocationMyBatisConfigurationMyBatis Spring Boot mybatis-plus.config-location=classpath:mybatis-config.xml mysql mysql-connector-java 5.1.38 Since Spring boot was expecting a newer mysql-java-connector, which has been renamed to com.mysql.cj.jdbc.Driver, I also had to add the spring datasource driver-class-name setting in my spring boot db config. You can use Sqoop to import data from a relational database management system (RDBMS) such as MySQL or Oracle or a mainframe into the Hadoop Distributed File System (HDFS), transform the data in Hadoop MapReduce, and then export the data back into an RDBMS. 1.3.. As a key-value pair in the java.util.Properties instance passed to DriverManager.getConnection() or Driver.connect() As a JDBC URL parameter in the URL given to java.sql.DriverManager.getConnection(), java.sql.Driver.connect() or the MySQL implementations of the javax.sql.DataSource setURL() method. mysql2020-04-11 11:26:081010mysqlmysql Druid(mysql),~~1 DruidDruid ()OLAP(MOLAP). familymonitor_v2 orderpayment mysql root tb_coupon_info orderpayment tb_rus_worldcup_team_infofamilymonitor_v2 jdk1.7 mysql5.7 spring boot mybatis + demosql.sql direct mapping mysql2020-04-11 11:26:081010mysqlmysql Name Default Value Since Version; autoReconnect: false: 1.1: autoReconnectForPools: false: mysql2020-04-11 11:26:081010mysqlmysql The driver has not received any packets from the server. CREATE DATABASE ssmdemo; DROP TABLE IF EXISTS tb_user; CREATE TABLE tb_user ( id char(32) NOT NULL, user_name varchar(32) DEFAULT NULL, password varchar(32) DEFAULT NULL, name varchar(32) DEFAULT NULL, age int(10) DEFAULT NULL, sex int(2) DEFAULT NULL, birthday date DEFAULT NULL, created IDEASpringBootmybatisspringboot+mybatis W3CRDB2RDFRDFd2rqMysqlRDF . myEclipse10java java.sql.SQLException: Access denied for user 'root'@'localhost' (using password: YES) db.propertiesmysql 1MySQL WorkbenchNavicat 2MySQLmysql-connector-java8.0.13driver-class-namecom.mysql.cj.jdbc.Driver Configuration properties define how Connector/J will make a connection to a MySQL server.