Commons-dbUtils开发应用和研究（五）
protected int[] mapColumnsToProperties(ResultSetMetaData rsmd,
PropertyDescriptor[] props) throws SQLException {
int cols = rsmd.getColumnCount();
int columnToProperty[] = new int[cols + 1];
Arrays.fill(columnToProperty, PROPERTY_NOT_FOUND);
for (int col = 1; col <= cols; col++) {
String columnName = rsmd.getColumnName(col);
for (int i = 0; i < props.length; i++) {
if (columnName.equalsIgnoreCase(props[i].getName())) {
columnToProperty[col] = i;
break;
}
}
}
return columnToProperty;
}
/**
* 转换一行记录为一个对象
*/
protected Object processColumn(ResultSet rs, int index, Class propType)
throws SQLException {
if (propType.equals(String.class)) {
return rs.getString(index);
} else if (
propType.equals(Integer.TYPE) || propType.equals(Integer.class)) {
return new Integer(rs.getInt(index));
} else if (
propType.equals(Boolean.TYPE) || propType.equals(Boolean.class)) {
return new Boolean(rs.getBoolean(index));
} else if (propType.equals(Long.TYPE) || propType.equals(Long.class)) {
return new Long(rs.getLong(index));
} else if (
propType.equals(Double.TYPE) || propType.equals(Double.class)) {
return new Double(rs.getDouble(index));
} else if (
propType.equals(Float.TYPE) || propType.equals(Float.class)) {
return new Float(rs.getFloat(index));
} else if (
propType.equals(Short.TYPE) || propType.equals(Short.class)) {
return new Short(rs.getShort(index));
} else if (propType.equals(Byte.TYPE) || propType.equals(Byte.class)) {
return new Byte(rs.getByte(index));
} else if (propType.equals(Timestamp.class)) {
return rs.getTimestamp(index);
} else {
return rs.getObject(index);
}
}
}