JAVAEE 课程系列 ————————————————————————————— 1 更多 Java –大数据 –前端 –python 人工智能资料下载，可访问百度：尚硅谷官网 MyBatis 框架 尚硅谷 java 研究院 版本：V 1.0 第 1 章 MyBatis 简介 1.1 MyBatis 历史 1）MyBatis 是 Apache 的一个开源项目 iBatis, 2010 基于全映射的全自动框架，大量字段的 POJO 进行部分映射时比较困难。导致数据 库性能下降 JAVAEE 课程系列 ————————————————————————————— 2 更多 Java –大数据 –前端 –python 人工智能资料下载，可访问百度：尚硅谷官网 3） MyBatis 1 对开发人员而言，核心 sql 还是需要自己优化 2 sql 和 java 编码分开，功能边界清晰，一个专注业务、一个专注数据 https://github.com/mybatis/mybatis-3/ JAVAEE 课程系列 ————————————————————————————— 3 更多 Java –大数据 –前端 –python 人工智能资料下载，可访问百度：尚硅谷官网 第 2 章 MyBatis HelloWorld 2.1 开发环境的准备 1) 导入 MyBatis 框架的 jar 包、Mysql 驱动包、log4j

. . . . . . . . . 291 6.1.1 Apache ShardingSphere ‐ Version: 5.0.0‐alpha ( Release Date: Nov 10, 2020 ) . . 291 6.1.2 ShardingSphere UI ‐ Version: 5.0.0‐alpha ( Release Date: Nov 22, 2020 ) . . . . instead of a total overturn. Apache ShardingSphere begin to focus on pluggable architecture from version 5.x, features can be em‐ bedded into project flexibility. Currently, the features such as data sharding encapsulates database binary protocol to support heterogeneous languages. Friendlier to DBA, the MySQL version provided now can use any kind of terminal (such as MySQL Command Client, MySQL Workbench, etc.)

> shardingsphere-jdbc-core <version>${latest.release.version}version> 注意：请将 ${latest.release.version} 更改为实际的版本号。 2.1.2 2. 规则配置 ShardingSphere‐JDBC 可以通过 Java，YAML，Spring shardingsphere shardingsphere-sql-parser-engine <version>${project.version}version> shardingsphere shardingsphere-sql-parser-mysql <version>${project.version}version> 例子 • 获取语法树 /** * databaseType type:String 可能值 MySQL,Oracle，Pos

. . . . . . . . . . . . . . . . . . . . . . . . . . . . 444 xi 8.1.1 Apache ShardingSphere ‐ Version: 5.1.0 ( Release Date: Feb 16th, 2022 ) . . . . . 444 8.2 All Releases . . . . . . . . . . . . shardingsphere-jdbc-core <version>${latest.release.version}version> Notice: Please change ${latest.release.version} to the actual version. 2.1.2 Rules Configuration ShardingSphere‐JDBC the quality of the project. Apache ShardingSphere begin to focus on pluggable architecture from version 5.x, features can be embedded into project flexibility. Currently, the features such as data sharding

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 489 8.1.1 Apache ShardingSphere ‐ Version: 5.1.2 ( Release Date: June 13th, 2022 ) . . . . 489 8.2 All Releases . . . . . . . . . . . . . Apache ShardingSphere document, v5.1.2 <version>${latest.release.version}version> Notice: Please change ${latest.release.version} to the actual version. 3. Edit application.yml. spring: the quality of the project. Apache ShardingSphere begin to focus on pluggable architecture from version 5.x, features can be embedded into project flexibility. Currently, the features such as data sharding

. . . . . . . . . . . 83 8.1.1 ElasticJob ‐ Version: 3.0.4 ( Release Date: Oct 18, 2023 ) . . . . . . . . . . . . . . 83 8.1.2 ElasticJob‐UI ‐ Version: 3.0.2 ( Release Date: Oct 31, 2022 ) . . . . a false death of the instance during the rolling deployment process, and even if the historical version was rolled back, there was still false death. . . . . . . . . . . . . . . . . . . . . . . . . . shardingsphere.elasticjob elasticjob-bootstrap <version>${latest.release.version}version> 4.2 Develop Job public class MyJob implements SimpleJob { @Override

shardingsphere.elasticjob elasticjob-bootstrap <version>${latest.release.version}version> 4.2 作业开发 public class MyJob implements SimpleJob { @Override fetchData 再次抓取到， 从而使得作业永不停止。 6.1. 使用手册 24 Apache ShardingSphere ElasticJob document 脚本作业 支持 shell，python，perl 等所有类型脚本。可通过属性配置 script.command.line 配置待执行脚本， 无需编码。执行脚本路径可包含参数，参数传递完毕后，作业框架会自动追加最后一个参数为作业运行 elasticjob elasticjob-error-handler-email <version>${latest.release.version}version> public class JobDemo { public static void main(String[] args)

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 391 8.1.1 Apache ShardingSphere ‐ Version: 5.0.0‐beta ( Release Date: Jun 19th, 2021 ) . . 391 8.2 All Releases . . . . . . . . . . . . . shardingsphere-jdbc-core <version>${latest.release.version}version> Notice: Please change ${latest.release.version} to the actual version. 2.1.2 2. Rules Configuration ShardingSphere‐JDBC the quality of the project. Apache ShardingSphere begin to focus on pluggable architecture from version 5.x, features can be embedded into project flexibility. Currently, the features such as data sharding

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 587 14.1.1 Apache ShardingSphere ‐ Version: 5.5.0 ( Release Date: April 23rd, 2024 ) . . . . 587 14.2 All Releases . . . . . . . . . . . . form of jar and requires no extra deployment and dependence. It can be considered as an enhanced version of the JDBC driver, which is fully compatible with JDBC and all kinds of ORM frameworks. • Applicable c <version>${latest.release.version}version> 14 Apache ShardingSphere document Notice: Please change ${latest.release.version} to the actual version. 3. Create YAML configuration

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 467 9.1.1 Apache ShardingSphere ‐ Version: 5.2.0 ( Release Date: Sept 5th, 2022 ) . . . . . 467 9.2 All Releases . . . . . . . . . . . . form of jar and requires no extra deployment and dependence. It can be considered as an enhanced version of the JDBC driver, which is fully compatible with JDBC and all kinds of ORM frameworks. • Applicable Apache ShardingSphere document, v5.2.0 <version>${latest.release.version}version> Notice: Please change ${latest.release.version} to the actual version. 3. Edit application.yml. spring: