如何检查CachedRowSet中是否存在列名？

import javax.sql.rowset.CachedRowSet;
import javax.sql.rowset.RowSetFactory;
import javax.sql.rowset.RowSetProvider;
import java.sql.ResultSetMetaData;

public class CachedRowSetExample {
    public static void main(String[] args) {
        RowSetFactory factory = RowSetProvider.newFactory();
        CachedRowSet rowSet = factory.createCachedRowSet();

        // 假设已经执行了查询操作，并将结果存储在CachedRowSet中
        ResultSetMetaData metaData = rowSet.getMetaData();
        int columnCount = metaData.getColumnCount();

        for (int i = 1; i <= columnCount; i++) {
            String columnName = metaData.getColumnName(i);
            String columnLabel = metaData.getColumnLabel(i);
            System.out.println("Column " + i + ": Name=" + columnName + ", Label=" + columnLabel);
        }
    }
}