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ShardingSphere 4.x Sharding-JDBC 用户手册之编排治理使用手册

使用治理功能需要指定配置中心和注册中心。配置将全部存入配置中心，可以在每次启动时使用本地配置覆盖配置中心配置，也可以只通过配置中心读取配置。

不使用Spring

引入Maven依赖

<dependency>
    <groupId>org.apache.shardingsphere</groupId>
    <artifactId>sharding-jdbc-orchestration</artifactId>
    <version>${sharding-sphere.version}</version>
</dependency>

<!--若使用zookeeper, 请加入下面Maven坐标-->
<dependency>
    <groupId>org.apache.shardingsphere</groupId>
    <artifactId>sharding-orchestration-reg-zookeeper-curator</artifactId>
    <version>${sharding-sphere.version}</version>
</dependency>

基于Java编码的规则配置

// 省略配置dataSourceMap以及shardingRuleConfig
    // ...

    // 配置注册中心
    Properties properties = new Properties();
    properties.setProperty("overwrite", overwrite);
    CenterConfiguration centerConfiguration = new CenterConfiguration("zookeeper", properties);
    centerConfiguration.setServerLists("localhost:2181");
    centerConfiguration.setNamespace("sharding-sphere-orchestration");
    centerConfiguration.setOrchestrationType("registry_center,config_center");

    // 配置治理
    Map<String, CenterConfiguration> instanceConfigurationMap = new HashMap<String, CenterConfiguration>();
    instanceConfigurationMap.put("orchestration-sharding-data-source", centerConfiguration);

    // 获取数据源对象
    OrchestrationShardingDataSourceFactory.createDataSource(
                        createDataSourceMap(), createShardingRuleConfig(), new HashMap<String, Object>(), new Properties(), new OrchestrationConfiguration(instanceConfigurationMap));

基于Yaml的规则配置

或通过Yaml方式配置，与以上配置等价：

orchestration:
  orchestration_ds:
      orchestrationType: registry_center,config_center
      instanceType: zookeeper
      serverLists: localhost:2181
      namespace: orchestration
      props:
        overwrite: true

DataSource dataSource = YamlOrchestrationShardingDataSourceFactory.createDataSource(yamlFile);

使用Spring

引入Maven依赖

<!-- for spring boot -->
<dependency>
    <groupId>org.apache.shardingsphere</groupId>
    <artifactId>sharding-jdbc-orchestration-spring-boot-starter</artifactId>
    <version>${sharding-sphere.version}</version>
</dependency>

<!--若使用zookeeper, 请加入下面Maven坐标-->
<dependency>
    <groupId>org.apache.shardingsphere</groupId>
    <artifactId>sharding-orchestration-reg-zookeeper-curator</artifactId>
    <version>${sharding-sphere.version}</version>
</dependency>

<!-- for spring namespace -->
<dependency>
    <groupId>org.apache.shardingsphere</groupId>
    <artifactId>sharding-jdbc-orchestration-spring-namespace</artifactId>
    <version>${sharding-sphere.version}</version>
</dependency>

<!--若使用zookeeper, 请加入下面Maven坐标-->
<dependency>
    <groupId>org.apache.shardingsphere</groupId>
    <artifactId>sharding-orchestration-reg-zookeeper-curator</artifactId>
    <version>${sharding-sphere.version}</version>
</dependency>

基于Spring boot的规则配置

spring.shardingsphere.orchestration.spring_boot_ds_sharding.orchestration-type=registry_center,config_center
spring.shardingsphere.orchestration.spring_boot_ds_sharding.instance-type=zookeeper
spring.shardingsphere.orchestration.spring_boot_ds_sharding.server-lists=localhost:2181
spring.shardingsphere.orchestration.spring_boot_ds_sharding.namespace=orchestration-spring-boot-sharding-test
spring.shardingsphere.orchestration.spring_boot_ds_sharding.props.overwrite=true

基于Spring命名空间的规则配置

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:orchestraion="http://shardingsphere.apache.org/schema/shardingsphere/orchestration"
       xmlns="http://www.springframework.org/schema/beans"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
                           http://www.springframework.org/schema/beans/spring-beans.xsd
                           http://shardingsphere.apache.org/schema/shardingsphere/orchestration
                           http://shardingsphere.apache.org/schema/shardingsphere/orchestration/orchestration.xsd">
     <import resource="namespace/shardingDataSourceNamespace.xml" />
     <util:properties id="instance-props">
               <prop key="max-retries">3</prop>
               <prop key="operation-timeout-milliseconds">3000</prop>
         </util:properties>
         <orchestraion:instance id="regCenter" orchestration-type="registry_center,config_center" instance-type="zookeeper" server-lists="localhost:2181" namespace="orchestration-spring-namespace-demo"
                                    props-ref="instance-props" />
         <orchestraion:sharding-data-source id="shardingDatabasesTablesDataSource" data-source-ref="realShardingDatabasesTablesDataSource" instance-ref="regCenter" overwrite="true" />
         <orchestraion:master-slave-data-source id="masterSlaveDataSource" data-source-ref="realMasterSlaveDataSource" instance-ref="regCenter" overwrite="true" />
         <orchestraion:encrypt-data-source id="encryptDataSource" data-source-ref="realEncryptDataSource" instance-ref="regCenter" overwrite="true" />
</beans>

更多的详细配置请参考配置手册。

原文 https://segmentfault.com/a/1190000023379007

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