获取JDBC中的ResultSet的记录的条数

ResultSet rs;
rs.last(); //移到最后一行
int rowCount = rs.getRow(); //得到当前行号，也就是记录数
rs.beforeFirst(); //如果还要用结果集，就把指针再移到初始化的位置

ResultSet rs;
int rowCount = 0;
while(rset.next())
{
rowCount++;
}

String sql = "select count(*) record_ from ( select * from yourtable t where t.column_ = 'value_' )";
ResultSet rs = ps.executeQuery(sql);
int rowCount = 0;
if(rs.next())
{
rowCount=rs.getInt("record_");
}