each data node to manage their own transactions on the premise that any distributed trans‐ action manager is not on. They do not have any coordination and communication ability, or know other data nodes Model defined by X/OPEN, in which created AP (Application Pro‐ gram), TM (Transaction Manager) and RM (Resource Manager) can guarantee a high transaction con‐ sistency. TM and RM use XA protocol for bidirectional XA driver provided by database manufacturers and TransactionManager is provided by trans‐ action manager manufacturers. Traditional transaction managers need to be bound with application server, which

XA transaction adopts the concepts including AP(application program), TM(transaction manager) and RM(resource manager) to ensure the strong consistency of distributed transactions. Those concepts are abstracted http://shardingsphere.apache.org/schema/shardingsphere/ sharding/sharding.xsd "> package="org.apache.shardingsphere.example.core. mybatis" /> package="org.apache.shardingsphere.example.core. mybatis" /> 4.1. ShardingSphere-JDBC 154 Apache ShardingSphere

XA transaction adopts the concepts including AP(application program), YM(transaction manager) and RM(resource manager) to ensure the strong consistency of distributed transactions. Those concepts are abstracted Apache ShardingSphere document, v5.2.0 sharding/sharding.xsd "> package="org.apache.shardingsphere.example.core. mybatis" /> package="org.apache.shardingsphere.example.core. mybatis" /> 4.1. ShardingSphere-JDBC 152 Apache ShardingSphere

each data node to manage their own transactions on the premise that any distributed trans‐ action manager is not on. They do not have any coordination and communication ability, or know other data nodes Model defined by X/OPEN, in which created AP (Application Pro‐ gram), TM (Transaction Manager) and RM (Resource Manager) can guarantee a high transaction con‐ sistency. TM and RM use XA protocol for bidirectional XA driver provided by database manufacturers and TransactionManager is provided by trans‐ action manager manufacturers. Traditional transaction managers need to be bound with application server, which

each data node to manage their own transactions on the premise that any distributed trans‐ action manager is not on. They do not have any coordination and communication ability, or know other data nodes Model defined by X/OPEN, in which created AP (Application Pro‐ gram), TM (Transaction Manager) and RM (Resource Manager) can guarantee a high transaction con‐ sistency. TM and RM use XA protocol for bidirectional XA driver provided by database manufacturers and TransactionManager is provided by trans‐ action manager manufacturers. Traditional transaction managers need to be bound with application server, which

each data node to manage their own transactions on the premise that any distributed trans‐ action manager is not on. They do not have any coordination and communication ability, or know other data nodes Model defined by X/OPEN, in which created AP (Application Pro‐ gram), TM (Transaction Manager) and RM (Resource Manager) can guarantee a high transaction con‐ sistency. TM and RM use XA protocol for bidirectional XA driver provided by database manufacturers and TransactionManager is provided by trans‐ action manager manufacturers. Traditional transaction managers need to be bound with application server, which

XA transaction adopts the concepts including AP(application program), TM(transaction manager) and RM(resource manager) to ensure the strong consistency of distributed transactions. Those concepts are abstracted In MySQL8, you need to grant the user XA_RECOVER_ADMIN privileges, otherwise, the XA transaction manager will report an error when executing the XA RECOVER statement. 8.3 Readwrite-splitting 8.3.1 Background Transaction Background Apache ShardingSphere provides XA transactions, and the default XA transaction manager is Atomikos. Procedure 1. Configure the transaction type 2. Configure Atomikos Sample Configure

XA transaction adopts the concepts including AP(application program), TM(transaction manager) and RM(resource manager) to ensure the strong consistency of distributed transactions. Those concepts are abstracted In MySQL8, you need to grant the user XA_RECOVER_ADMIN privileges, otherwise, the XA transaction manager will report an error when executing the XA RECOVER statement. 8.3 Readwrite-splitting 8.3.1 Background Transaction Background Apache ShardingSphere provides XA transactions, and the default XA transaction manager is Atomikos. Procedure 1. Configure the transaction type 2. Configure Atomikos 9.1. ShardingSphere-JDBC

use the transaction manager of type JDBC, the application is responsible for the transaction management operations, such as, commit, roll-back, etc... If we use the transaction manager of type MANAGED, the a shorter name for a Java type. Suppose, we have a class Student in Student.java file within the package named tutorials_point.com.mybatis_examples, then the absolute class name will be tutorials_point class, andname. For example, the name of the mapper xml file is Student.xml and it resides in the package named as mybatis,, then you can configure the mapper tag as shown below.

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alias="emp"/> 2) 类很多的情况下，可以批量设置别名这个包下的每一个类创建一个默认的别名，就是简 单类名小写 <package name="com.atguigu.mybatis.beans"/> JAVAEE 课程系列 ————————————————————————————— 11 更多 Java –大数据 –前端 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) 使用批量注册，这种方式要求 SQL 映射文件名必须和接口名相同并且在同一目录下 <package name="com.atguigu.mybatis.dao"/> 第 4 章 MyBatis 映射文件 4.1 Mybatis 映射文件简介 1) MyBatis <package name="com.atguigu.mybatis.dao"/> JAVAEE 课程系列 ————————————————————————————— 16 更多 Java