[GitHub] [incubator-shardingsphere] liubao616 opened a new issue #2932: Cannot obtained Data from multiple data sources when integrating MyBatis with HitManager

[GitBox <gi...@apache.org>]

liubao616 opened a new issue #2932: Cannot obtained Data from multiple data sources when integrating MyBatis with HitManager
URL: https://github.com/apache/incubator-shardingsphere/issues/2932
 
 
   **Hey !**
         Our company uses multi-tenant mode, each tenant corresponds to a database. Now we need to get the data of two tenants at the same time, using HitManager strong routing mode.
         __Here is a simulated custom HintSharing Algorithm algorithm,The code is as follows:__
       ` public class MyHintShardingAlgorithm implements HintShardingAlgorithm<String>{
   
   	public Collection<String> doSharding(Collection<String> availableTargetNames,
   			HintShardingValue<String> shardingValue) {
   		Collection<String> result=new ArrayList<String>();
   		//more dataSources
   		result.add("MD_COMMON_OA");
   		result.add("MD_XXZX_OA");
   		return result;
   	}
   } `
   
         __Data can be obtained using java. sql API，The code is as follows:__
   
   ` public void test2() throws SQLException {
   	HintManager hintManager=HintManager.getInstance();
   	hintManager.setDatabaseShardingValue("MD_XXZX_OA:MD_COMMON_OA");
   	String sql="SELECT  *  from  test_table";
   	try (Connection connection = dataSource.getConnection();
   			PreparedStatement preparedStatement = connection.prepareStatement(sql)) {
   		preparedStatement.setString(1, "MD_XXZX_OA");
   		try (ResultSet resultSet = preparedStatement.executeQuery()) {
   			int i=0;
   			while (resultSet.next()) {
   				System.out.print("application_code:" + resultSet.getObject(1) + ", ");
   			}
   		}
   	}
   	hintManager.close();
   }`
        __But you can not get data using MyBatis,   The code is as follows:__
      `     public  void test3() throws SQLException {
    		SqlSession session= sqlSessionFactory.openSession();
    		HintManager hintManager=HintManager.getInstance();
    		hintManager.setDatabaseShardingValue("MD_XXZX_OA:MD_COMMON_OA");
    		List<Map<String, Object>> datas=session.selectList("getStartFlowListBySysType", "MD_XXZX_OA");
    		session.commit();
    		System.out.println(datas.size());
    		hintManager.close();
    	}`
        __The version I use is：4.0.0-RC3-SNAPSHOT__

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