package com.dsh.config.Sharding_jdbc;
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import com.alibaba.druid.pool.DruidDataSource;
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import org.apache.shardingsphere.driver.api.ShardingSphereDataSourceFactory;
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import org.apache.shardingsphere.infra.config.algorithm.AlgorithmConfiguration;
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import org.apache.shardingsphere.infra.config.rule.RuleConfiguration;
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import org.apache.shardingsphere.sharding.api.config.ShardingRuleConfiguration;
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import org.apache.shardingsphere.sharding.api.config.rule.ShardingTableRuleConfiguration;
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import org.apache.shardingsphere.sharding.api.config.strategy.keygen.KeyGenerateStrategyConfiguration;
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import org.apache.shardingsphere.sharding.api.config.strategy.sharding.StandardShardingStrategyConfiguration;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.context.annotation.Bean;
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import org.springframework.context.annotation.Configuration;
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import javax.sql.DataSource;
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import java.sql.SQLException;
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import java.util.*;
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@Configuration
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public class ShardingConfig {
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@Autowired
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private Master0DataSource master0DataSource;
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@Bean
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public DataSource getDataSource(){
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DataSource dataSource = null;
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try {
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Properties properties = new Properties();
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properties.setProperty("sql-show", "true");
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String databaseName = "m_0";//真实数据源名称，多个数据源用逗号区分
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dataSource = ShardingSphereDataSourceFactory.createDataSource(databaseName, createDataSourceMap(), createShardingRuleConfiguration(), properties);
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} catch (SQLException e) {
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e.printStackTrace();
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}
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return dataSource;
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}
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/**
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* 配置多数据源
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* @return
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*/
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private Map<String, DataSource> createDataSourceMap() {
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Map<String, DataSource> dataSourceMap = new HashMap<>();
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// 配置第 1 个数据源
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DruidDataSource dataSource1 = new DruidDataSource();
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dataSource1.setDriverClassName(master0DataSource.getDriverClassName());
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dataSource1.setUrl(master0DataSource.getUrl());
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dataSource1.setUsername(master0DataSource.getUsername());
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dataSource1.setPassword(master0DataSource.getPassword());
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dataSource1.setMaxActive(master0DataSource.getMaxActive());
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dataSource1.setMaxWait(master0DataSource.getMaxWait());
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dataSource1.setMinIdle(master0DataSource.getMinIdle());
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dataSource1.setInitialSize(master0DataSource.getInitialSize());
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dataSourceMap.put("m_0", dataSource1);
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return dataSourceMap;
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}
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/**
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* 分片配置
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* @return
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*/
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private Collection<RuleConfiguration> createShardingRuleConfiguration() {
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LinkedList<RuleConfiguration> linkedList = new LinkedList();
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//分片规则配置
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ShardingRuleConfiguration result1 = new ShardingRuleConfiguration();
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result1.getTables().add(gettCoursePackagePaymentTableRuleConfiguration());
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Properties props1 = new Properties();
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props1.setProperty("algorithm-expression", "t_course_package_payment$->{appUserId % 5 + 1}");
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result1.getShardingAlgorithms().put("t_course_package_payment-inline", new AlgorithmConfiguration("INLINE", props1));
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result1.getKeyGenerators().put("t_course_package_payment-snowflake", new AlgorithmConfiguration("SNOWFLAKE", new Properties()));
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//分片规则配置
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result1.getTables().add(getCoursePackageStudentTableRuleConfiguration());
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Properties props2 = new Properties();
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props2.setProperty("algorithm-expression", "t_course_package_student$->{appUserId % 5 + 1}");
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result1.getShardingAlgorithms().put("t_course_package_student-inline", new AlgorithmConfiguration("INLINE", props2));
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result1.getKeyGenerators().put("t_course_package_student-snowflake", new AlgorithmConfiguration("SNOWFLAKE", new Properties()));
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linkedList.add(result1);
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return linkedList;
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}
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/**
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* 分片算法配置
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* @return
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*/
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private ShardingTableRuleConfiguration gettCoursePackagePaymentTableRuleConfiguration() {
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ShardingTableRuleConfiguration result = new ShardingTableRuleConfiguration("t_course_package_payment", "m$->{0}.t_course_package_payment$->{1..5}");//50
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result.setTableShardingStrategy(new StandardShardingStrategyConfiguration("appUserId", "t_course_package_payment-inline"));
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result.setKeyGenerateStrategy(new KeyGenerateStrategyConfiguration("id", "t_course_package_payment-snowflake"));
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return result;
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}
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/**
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* 分片算法配置
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* @return
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*/
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private ShardingTableRuleConfiguration getCoursePackageStudentTableRuleConfiguration() {
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ShardingTableRuleConfiguration result = new ShardingTableRuleConfiguration("t_course_package_student", "m$->{0}.t_course_package_student$->{1..5}");//30
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result.setTableShardingStrategy(new StandardShardingStrategyConfiguration("appUserId", "t_course_package_student-inline"));
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result.setKeyGenerateStrategy(new KeyGenerateStrategyConfiguration("id", "t_course_package_student-snowflake"));
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return result;
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}
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}
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