ResultSet rsTst = hiSession.connection().prepareStatement(queryStr).executeQuery(); 
ResultSetMetaData meta = rsTst.getMetaData();
int columnCount = meta.getColumnCount();
// The column count starts from 1

String nameValuePair = "";
while (rsTst.next()) {
    for (int i = 1; i < columnCount + 1; i++ ) {
        String name = meta.getColumnName(i);
        // Do stuff with name

        String value = rsTst.getString(i); //.getObject(1);
        nameValuePair = nameValuePair + name + "=" +value + ",";
        //nameValuePair = nameValuePair + ", ";
    }
    nameValuePair = nameValuePair+"||" + "\t";
}

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");
        }
    }

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

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);

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

除了上面的答案，如果您正在使用一个动态查询，并且您想要列名，但不知道有多少列，您可以使用ResultSetMetaData对象首先获得列的数量，然后循环遍历它们。

修改Brian的代码:

ResultSet rs = stmt.executeQuery("SELECT a, b, c FROM TABLE2");
ResultSetMetaData rsmd = rs.getMetaData();
int columnCount = rsmd.getColumnCount();

// The column count starts from 1
for (int i = 1; i <= columnCount; i++ ) {
  String name = rsmd.getColumnName(i);
  // Do stuff with name
}