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我試圖從resulset獲取值,但它什麼都不返回。 當我試圖通過普通的SQL它會返回一些值。ResultSet不返回DB2的值,但它返回值,如果我嘗試做它manualy
List<String> res = new ArrayList<String>();
try {
String query = "SELECT COLUMN_NAME FROM idoc.columns_to_show where user = ? "
+ DAO.DB2_UR_POSTFIX;
Connection connection = Properties.getDocsConnection();
try {
PreparedStatement pr = connection.prepareStatement(query);
try {
pr.setString(1, user.getDomainName());
ResultSet rs = pr.executeQuery();
try {
while (rs.next()) {
res.add(rs.getString("COLUMN_NAME"));
}
} finally {
rs.close();
}
} finally {
pr.close();
}
} finally {
connection.close();
}
} catch (SQLException e) {
throw new RuntimeException(e);
}
return res;
什麼是DAO.DB2_UR_POSTFIX? – SMA
@sma只是與你的; –
你的意思是'DAO.DB2_UR_POSTFIX =「用你的」;'?你可以請e.printStackTrace()並檢查是否遇到錯誤? – Jan