Astyanax 3.10.x与Cassandra 2.1.x版本兼容。以下是一个示例代码，展示了如何使用Astyanax 3.10.x与Cassandra进行连接和查询：

import com.netflix.astyanax.AstyanaxContext;
import com.netflix.astyanax.Keyspace;
import com.netflix.astyanax.MutationBatch;
import com.netflix.astyanax.connectionpool.NodeDiscoveryType;
import com.netflix.astyanax.connectionpool.OperationResult;
import com.netflix.astyanax.connectionpool.exceptions.ConnectionException;
import com.netflix.astyanax.model.ColumnFamily;
import com.netflix.astyanax.model.ColumnList;
import com.netflix.astyanax.serializers.StringSerializer;
import com.netflix.astyanax.thrift.ThriftFamilyFactory;

public class AstyanaxExample {
    public static void main(String[] args) {
        // 创建Astyanax上下文
        AstyanaxContext context = new AstyanaxContext.Builder()
                .forCluster("ClusterName")
                .forKeyspace("KeyspaceName")
                .withAstyanaxConfiguration(new AstyanaxConfigurationImpl()
                        .setDiscoveryType(NodeDiscoveryType.RING_DESCRIBE)
                )
                .withConnectionPoolConfiguration(new ConnectionPoolConfigurationImpl("MyConnectionPool")
                        .setPort(9160)
                        .setMaxConnsPerHost(1)
                        .setSeeds("127.0.0.1:9160")
                )
                .withConnectionPoolMonitor(new CountingConnectionPoolMonitor())
                .buildKeyspace(ThriftFamilyFactory.getInstance());

        context.start();
        
        // 获取Keyspace
        Keyspace keyspace = context.getClient();

        // 定义ColumnFamily
        ColumnFamily columnFamily = ColumnFamily.newColumnFamily(
                "cfName",
                StringSerializer.get(),
                StringSerializer.get());

        // 插入数据
        MutationBatch mutationBatch = keyspace.prepareMutationBatch();
        mutationBatch.withRow(columnFamily, "rowKey")
                .putColumn("column1", "value1", null)
                .putColumn("column2", "value2", null);
        try {
            mutationBatch.execute();
        } catch (ConnectionException e) {
            e.printStackTrace();
        }

        // 查询数据
        try {
            OperationResult> result = keyspace.prepareQuery(columnFamily)
                    .getKey("rowKey")
                    .execute();
            ColumnList columns = result.getResult();
            System.out.println(columns.getStringValue("column1", null));
            System.out.println(columns.getStringValue("column2", null));
        } catch (ConnectionException e) {
            e.printStackTrace();
        }

        // 关闭Astyanax上下文
        context.shutdown();
    }
}

请注意，以上示例使用的是Astyanax 3.10.x版本的API。要与其他版本的Cassandra进行兼容，您可能需要相应调整代码。