MySQL结果集JsonWriter:JsonWriter。值((java.sql.Date)结果集。getObject(列);
我想用
jsonWriter.value((java.sql.Date) resultSet.getObject(column));
但这似乎是不可能的。上面说long、Date和String都不适用于该类型。我怎样才能做到这一点
完整代码:
private static void writeField(final ResultSet resultSet, final JsonWriter jsonWriter, final ResultSetMetaData metaData, final int column) throws SQLException, IOException {
final int columnType = metaData.getColumnType(column);
switch ( columnType ) {
case Types.BIT:
case Types.TINYINT:
case Types.SMALLINT:
throw new UnsupportedOperationException("TODO: " + JDBCType.valueOf(columnType));
case Types.INTEGER:
jsonWriter.value((Integer) resultSet.getObject(column));
break;
case Types.BIGINT:
case Types.FLOAT:
case Types.REAL:
case Types.DOUBLE:
case Types.NUMERIC:
case Types.DECIMAL:
case Types.CHAR:
throw new UnsupportedOperationException("TODO: " + JDBCType.valueOf(columnType));
case Types.VARCHAR:
jsonWriter.value((String) resultSet.getObject(column));
break;
case Types.LONGVARCHAR:
jsonWriter.value((String) resultSet.getObject(column));
break;
case Types.DATE:
// here's the problem. i dont know to what to case the column.
jsonWriter.value((java.sql.Date) resultSet.getObject(column));
break;
case Types.TIME:
case Types.TIMESTAMP:
jsonWriter.value((long) resultSet.getObject(column));
case Types.BINARY:
case Types.VARBINARY:
case Types.LONGVARBINARY:
case Types.NULL:
case Types.OTHER:
case Types.JAVA_OBJECT:
case Types.DISTINCT:
case Types.STRUCT:
case Types.ARRAY:
case Types.BLOB:
case Types.CLOB:
case Types.REF:
case Types.DATALINK:
case Types.BOOLEAN:
case Types.ROWID:
case Types.NCHAR:
case Types.NVARCHAR:
case Types.LONGNVARCHAR:
case Types.NCLOB:
case Types.SQLXML:
case Types.REF_CURSOR:
case Types.TIME_WITH_TIMEZONE:
case Types.TIMESTAMP_WITH_TIMEZONE:
throw new UnsupportedOperationException("TODO: " + JDBCType.valueOf(columnType));
default:
throw new UnsupportedOperationException("Unknown type: " + columnType);
}
}
我还需要在以后实现时间戳——以防它们相关
非常感谢!:)
# 1 楼答案
好的,我终于找到了方法(我希望不是100%确定,因为我还不能在客户端上显示数据——但它可以编译并运行。下面是代码:
我希望我没有以同样的方式格式化它两次?:)
这里还有时间戳的代码: