public static void main(String[] args) {
MySqlImpl db = new MySqlImpl();
DBResultSet rs =
db.retrieveResultSet(
"select * from tbl_interactions where user_name = 'baolingfeng' and timestamp > '2015-03-20 17:56:54.411' order by timestamp limit 0,10");
for (Entry<String, String> e : rs.getcMeta().entrySet()) {
System.out.println(e.getKey() + "/" + e.getValue());
}
LowLevelInteraction u = InteractionUtil.fromDBRecord(rs.getRecords().get(0));
}
public DBResultSet retrieveResultSet(String sql) {
Statement stmt = null;
ResultSet rs = null;
DBResultSet drs = new DBResultSet();
try {
stmt = connection.createStatement(ResultSet.TYPE_FORWARD_ONLY, ResultSet.CONCUR_READ_ONLY);
stmt.setFetchSize(Integer.MIN_VALUE);
rs = stmt.executeQuery(sql);
ResultSetMetaData rsmd = rs.getMetaData();
while (rs.next()) {
DBRecord r = new DBRecord();
for (int i = 1; i <= rsmd.getColumnCount(); i++) {
String columnName = rsmd.getColumnLabel(i);
String columnType = rsmd.getColumnTypeName(i);
drs.addColumn(columnName, columnType);
if (columnType.contains("BLOB")) {
try {
BufferedImage img = ImageIO.read(rs.getBinaryStream(columnName));
r.add(columnName, img);
} catch (Exception e) {
r.add(columnName, rs.getBinaryStream(columnName));
}
} else {
r.add(columnName, rs.getObject(columnName));
}
}
drs.addRecord(r);
}
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
if (stmt != null) stmt.close();
if (rs != null) rs.close();
} catch (Exception e) {
e.printStackTrace();
}
}
return drs;
}