时间:2021-07-01 10:21:17 帮助过:2人阅读
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package
my.db;
import
java.io.Serializable;
import
java.math.BigInteger;
import
java.sql.*;
import
java.util.*;
import
my.cache.CacheManager;
import
net.oschina.Configurations;
import
org.apache.commons.dbutils.QueryRunner;
import
org.apache.commons.dbutils.handlers.*;
import
org.apache.commons.lang.ArrayUtils;
/**
*
数据库查询助手
*
@author Winter Lau<br> */
@SuppressWarnings ( "unchecked" )
public
class
QueryHelper {
private
final
static
QueryRunner _g_runner = new
QueryRunner();
private
final
static
ColumnListHandler _g_columnListHandler = new
ColumnListHandler(){
@Override
protected
Object handleRow(ResultSet rs) throws
SQLException {
Object
obj = super .handleRow(rs);
if (obj
instanceof
BigInteger)
return
((BigInteger)obj).longValue();
return
obj;
}
};
private
final
static
ScalarHandler _g_scaleHandler = new
ScalarHandler(){
@Override
public
Object handle(ResultSet rs) throws
SQLException {
Object
obj = super .handle(rs);
if (obj
instanceof
BigInteger)
return
((BigInteger)obj).longValue();
|