44
}
45
rs.close();
46
ps.close();
47
}
48
49
public static void main(String[] args)
50
{
51
OracleJdbcTest test = new OracleJdbcTest();
52
test.init();
53
test.fetch();
54
}
55
}
6. 把 Java util.Date 转成 sql.Date
56
java.util.Date utilDate = new java.util.Date();
57
java.sql.Date sqlDate = new java.sql.Date(utilDate.getTime());
7. 使用 NIO 进行快速的文件拷贝
58
public static void fileCopy( File in, File out )
59
throws IOException
60
{
61
FileChannel inChannel = new FileInputStream( in ).getChannel();
62
FileChannel outChannel = new FileOutputStream( out ).getChannel();
63
try
64
{
65
// inChannel.transferTo(0, inChannel.size(), outChannel); // original -- apparently
has trouble copying large files on Windows
66
67
// magic number for Windows, 64Mb - 32Kb)
68
int maxCount = (64 * 1024 * 1024) - (32 * 1024);
69
long size = inChannel.size();
70
long position = 0;