错误信息:data sources cannot be empty 这表明在创建 shardingdatasource 时,传入的数据源(data sources)为空,导致异常被抛出。 2. 分析异常原因:数据源为空 在使用分片数据源(如 ShardingSphere、MyBatis-Plus 分片等)时,必须配置至少一个数据源。如果数据源配置为空或未正确配置,就会触发此异常。 3. 检查代码...
= dataSourceNames && !dataSourceNames.isEmpty(), "Data sources cannot be empty."); this.ruleConfiguration = shardingRuleConfig; shardingDataSourceNames = new ShardingDataSourceNames(shardingRuleConfig, dataSourceNames); tableRules = createTableRules(shardingRuleConfig); broadcastTables = shardingRule...
// 2. 加载新数据节点路由信息Collection<String>routedDataSources=routeDataSources(shardingRule,tableRule,databaseShardingValues,false);for(Stringeach:routedDataSources){// 新数据节点未被加载时,加载新数据节点if(oldDataSources==null||!oldDataSources.contains(each)){result.addAll(routeTables(shardingRule...
privateCollection<String>routeDataSources(final TableRule tableRule){...Collection<String>result=strategy.doStaticSharding(tableRule.getActualDatasourceNames(),shardingValues);// result是路由结果,即原生SQL路由后需要在哪些数据库中执行,很明显result肯定不可能为空; Preconditions.checkState(!result.isEmpty(),...
publicShardingRule(ShardingRuleConfiguration shardingRuleConfig, Collection<String>dataSourceNames) { Preconditions.checkArgument(!dataSourceNames.isEmpty(), "Data sources cannot be empty.");this.shardingRuleConfig =shardingRuleConfig;this.shardingDataSourceNames =newShardingDataSourceNames(shardingRuleConfig,...
* * @param name 读写分离数据源名称 * @param masterDataSource 主节点数据源 * @param slaveDataSource 从节点数据源 * @param otherSlaveDataSources 其他从节点数据源 * @return 读写分离数据源 */ public static DataSource createDataSource(final String name, final DataSource masterDataSource, final ...
Not only SQLs from MySQL, PostgreSQL, SQLServer, Oracle, but any SQL92 Syntax can be parsed correctly and used in ShardingSphere. Enhancement Support using less-than character(<) and greater-than character(>) for sharding data. When master and slave dataSources exist, support executingSELECT FOR...
Preconditions.checkState(!config.getSlaveDataSourceNames().isEmpty(), "Slave data source names cannot be empty."); name=config.getName(); masterDataSourceName=config.getMasterDataSourceName(); slaveDataSourceNames=config.getSlaveDataSourceNames(); ...
if(sqlTokens.isEmpty()){ result.appendLiterals(originalSQL); returnresult; } intcount=0; // 排序SQLToken,按照 beginPosition 递增 sortByBeginPosition(); for(SQLTokeneach:sqlTokens){ if(0==count){// 拼接第一个 SQLToken 前的字符串
The company uses theapolloconfiguration center to deliver the node id of the service instance. The service uses multi-data sources. If you use the YAML file to load sharding configuration, theworkIdcannot be automatically loaded into sharding configuration items. ...