当你需要列名，但不想获取条目时:

PreparedStatement stmt = connection.prepareStatement("SHOW COLUMNS FROM `yourTable`");

ResultSet set = stmt.executeQuery();

//store all of the columns names
List<String> names = new ArrayList<>();
while (set.next()) { names.add(set.getString("Field")); }

注意:仅适用于MySQL

您可以从ResultSet元数据中获得此信息。看到ResultSetMetaData

e.g.

 ResultSet rs = stmt.executeQuery("SELECT a, b, c FROM TABLE2");
 ResultSetMetaData rsmd = rs.getMetaData();
 String name = rsmd.getColumnName(1);

你可以从那里得到列名。如果有的话

select x as y from table

那么rsmd.getColumnLabel()也会给你检索到的标签名。

你可以使用ResultSetMetaData (http://java.sun.com/javase/6/docs/api/java/sql/ResultSetMetaData.html)对象，就像这样:

ResultSet rs = stmt.executeQuery("SELECT * FROM table");
ResultSetMetaData rsmd = rs.getMetaData();
String firstColumnName = rsmd.getColumnName(1);

我知道，这个问题已经回答了，但可能像我这样的人需要通过标签而不是索引访问DatabaseMetaData的列名:

ResultSet resultSet = null;
DatabaseMetaData metaData = null;

    try {
        metaData  = connection.getMetaData();
        resultSet = metaData.getColumns(null, null, tableName, null);

        while (resultSet.next()){
            String name = resultSet.getString("COLUMN_NAME");
        }
    }

U可以从resultSet.getMetaData()获取列名和值; 这段代码为我工作:

Connection conn = null;
PreparedStatement preparedStatement = null;
    try {
        Class.forName("com.mysql.cj.jdbc.Driver");
        conn = MySQLJDBCUtil.getConnection();
        preparedStatement = conn.prepareStatement(sql);
        if (params != null) {
            for (int i = 0; i < params.size(); i++) {
                preparedStatement.setObject(i + 1, params.get(i).getSqlValue());
            }
            ResultSet resultSet = preparedStatement.executeQuery();
            ResultSetMetaData md = resultSet.getMetaData();
            while (resultSet.next()) {
                int counter = md.getColumnCount();
                String colName[] = new String[counter];
                Map<String, Object> field = new HashMap<>();
                for (int loop = 1; loop <= counter; loop++) {
                    int index = loop - 1;
                    colName[index] = md.getColumnLabel(loop);
                    field.put(colName[index], resultSet.getObject(colName[index]));
                }
                rows.add(field);
            }
        }
    } catch (SQLException e) {
        e.printStackTrace();
    } finally {
        if (preparedStatement != null) {
            try {
                preparedStatement.close();
            }catch (Exception e1) {
                e1.printStackTrace();
            }
        }
        if (conn != null) {
            try {
                conn.close();
            } catch (SQLException e) {
                e.printStackTrace();
            }
        }
    }
    return rows;

SQLite 3

教科书getMetaData ();

DatabaseMetaData md = conn.getMetaData();
ResultSet rset = md.getColumns(null, null, "your_table_name", null);

System.out.println("your_table_name");
while (rset.next())
{
    System.out.println("\t" + rset.getString(4));
}

编辑:这也适用于PostgreSQL