center, ShardingSphere can build an application system that is applicable to all kinds of scenarios. Ar‐ chitects can adjust the system architecture to the most applicable one to their needs to conduct center, ShardingSphere can build an application system that is applicable to all kinds of scenarios. Ar‐ chitects can adjust the system architecture to the most applicable one to their needs to conduct configured by the previous rule when configuring the table. Java API Introduction Java API is the foundation of all configuration methods in ShardingSphere‐JDBC, and other configura‐ tions will eventually

by the master nodeUsed for dis‐ tributed locks of curator s ha rd in g: ra w‐ la te x: ne ce ss ar y N O The flag for re‐sharding. If the total number of shards changes, or the job server node goes without being interrupted in the middleThe sharding will not be triggered when the job is executed sh ar di ng :r aw ‐l at ex :ˋ p ro ce ss in gˋ Y E S The node held by the master node during sharding Describe id V AR CH AR (4 0) Y e s Primary key jo b_n ame VA RC HA R( 10 0) Y e s Job name o rig ina l_t ask _id V AR CH AR (1 00 0) Y e s Original task name t ask _id V AR CH AR (1 00 0)

MENT,runoob_title VARCHAR(100) NOT NULL,runoob_author VARCHAR(40) NOT NULL,runoob_test NATIONAL CH AR(40),submission_date DATE,PRIMARY KEY ( runoob_id))ENGINE=InnoDB DE‐ FAULT CHARSET=utf8; CREATE TABLE configured by the previous rule when configuring the table. Java API Introduction Java API is the foundation of all configuration methods in ShardingSphere‐JDBC, and other configura‐ tions will eventually

center, ShardingSphere can build an application system that is applicable to all kinds of scenarios. Ar‐ chitects can adjust the system architecture to the most applicable one to their needs to conduct center, ShardingSphere can build an application system that is applicable to all kinds of scenarios. Ar‐ chitects can adjust the system architecture to the most applicable one to their needs to conduct MENT,runoob_title VARCHAR(100) NOT NULL,runoob_author VARCHAR(40) NOT NULL,runoob_test NATIONAL CH AR(40),submission_date DATE,PRIMARY KEY ( runoob_id))ENGINE=InnoDB DE‐ FAULT CHARSET=utf8; CREATE TABLE

center, ShardingSphere can build an application system that is applicable to all kinds of scenarios. Ar‐ chitects can adjust the system architecture to the most applicable one to their needs to conduct center, ShardingSphere can build an application system that is applicable to all kinds of scenarios. Ar‐ chitects can adjust the system architecture to the most applicable one to their needs to conduct

MyBatis 简介 1.1 MyBatis 历史 1）MyBatis 是 Apache 的一个开源项目 iBatis, 2010 年 6 月这个项目由 Apache Software Foundation 迁移到了 Google Code，随着开发团队转投 Google Code 旗下， iBatis3.x 正式更名为 MyBatis ，代码于 2013 年 11 月迁移到 Github 2）iBatis

果能将数据库记录封装成 pojo 对象解析比较方便。 1.2 MyBatis 介绍 MyBatis 本是apache的一个开源项目iBatis, 2010年这个项目由apache software foundation 迁移到了google code，并且改名为MyBatis，实质上Mybatis对ibatis进行一些 改进。 MyBatis是一个优秀的持久层框架，它对jdbc的操作数据库的过程进行封装，使开发者

MENT,runoob_title VARCHAR(100) NOT NULL,runoob_author VARCHAR(40) NOT NULL,runoob_test NATIONAL CH AR(40),submission_date DATE,PRIMARY KEY ( runoob_id))ENGINE=InnoDB DE‐ FAULT CHARSET=utf8; CREATE TABLE