The '*' character is used to specify all values. For example, "*" in the minute field means "every minute".

The '?' character is allowed for the day-of-month and day-of-week fields. It is used to specify 'no specific value'. This is useful when you need to specify something in one of the two fileds, but not the other. See the examples below for clarification.

The '-' character is used to specify ranges For example "10-12" in the hour field means "the hours 10, 11 and 12".

The ',' character is used to specify additional values. For example "MON,WED,FRI" in the day-of-week field means "the days Monday, Wednesday, and Friday".

The '/' character is used to specify increments. For example "0/15" in the seconds field means "the seconds 0, 15, 30, and 45". And "5/15" in the seconds field means "the seconds 5, 20, 35, and 50". You can also specify '/' after the '*' character - in this case '*' is equivalent to having '0' before the '/'.

The 'L' character is allowed for the day-of-month and day-of-week fields. This character is short-hand for "last", but it has different meaning in each of the two fields. For example, the value "L" in the day-of-month field means "the last day of the month" - day 31 for January, day 28 for February on non-leap years. If used in the day-of-week field by itself, it simply means "7" or "SAT". But if used in the day-of-week field after another value, it means "the last xxx day of the month" - for example "6L" means "the last friday of the month". When using the 'L' option, it is important not to specify lists, or ranges of values, as you'll get confusing results.

The 'W' character is allowed for the day-of-month field. This character is used to specify the weekday (Monday-Friday) nearest the given day. As an example, if you were to specify "15W" as the value for the day-of-month field, the meaning is: "the nearest weekday to the 15th of the month". So if the 15th is a Saturday, the trigger will fire on Friday the 14th. If the 15th is a Sunday, the trigger will fire on Monday the 16th. If the 15th is a Tuesday, then it will fire on Tuesday the 15th. However if you specify "1W" as the value for day-of-month, and the 1st is a Saturday, the trigger will fire on Monday the 3rd, as it will not 'jump' over the boundary of a month's days. The 'W' character can only be specified when the day-of-month is a single day, not a range or list of days.

The 'L' and 'W' characters can also be combined for the day-of-month expression to yield 'LW', which translates to "last weekday of the month".

The '#' character is allowed for the day-of-week field. This character is used to specify "the nth" XXX day of the month. For example, the value of "6#3" in the day-of-week field means the third Friday of the month (day 6 = Friday and "#3" = the 3rd one in the month). Other examples: "2#1" = the first Monday of the month and "4#5" = the fifth Wednesday of the month. Note that if you specify "#5" and there is not 5 of the given day-of-week in the month, then no firing will occur that month.

The 'C' character is allowed for the day-of-month and day-of-week fields. This character is short-hand for "calendar". This means values are calculated against the associated calendar, if any. If no calendar is associated, then it is equivalent to having an all-inclusive calendar. A value of "5C" in the day-of-month field means "the first day included by the calendar on or after the 5th". A value of "1C" in the day-of-week field means "the first day included by the calendar on or after sunday".

The legal characters and the names of months and days of the week are not case sensitive.

Here are some full examples:

Pay attention to the effects of '?' and '*' in the day-of-week and day-of-month fields!

NOTES:

• Support for the features described for the 'C' character is not complete.
• Support for specifying both a day-of-week and a day-of-month value is not complete (you'll need to use the '?' character in on of these fields).
• Be careful when setting fire times between mid-night and 1:00 AM - "daylight savings" can cause a skip or a repeat depending on whether the time moves back or jumps forward.

网址：http://antelope.tigris.org/

我用到过一个控制时间的标签

2。ant-contrib

网址：ant-contrib.sourceforge.net

我用到过<if><else><then>等逻辑标签。

下面是我写的一个ant片断，用来copy不存在的文件，如果存在，则询问是否覆盖。
 <!--  tasks for copy required system files -->

 <taskdef resource="net/sf/antcontrib/antcontrib.properties" classpath="../WEB-INF/lib/ant-contrib-1.0b2.jar" />

 <target name="deploySysFiles">
  <var name="targetFile" unset="true" />
  <property name="targetFile" value="${JavaStatusSchemePath}" />
  <var name="originalFile" unset="true"/>
  <property name="originalFile" value="${JavaStatusSchemePath-Original}"/>
  <antcall target="deploySysFile" />
 </target>

 <target name="deploySysFile">
  <echo>check file : ${targetFile} exist or not</echo>
  <available file="${targetFile}" property="targetFileExisting" />
  <if>
   <not>
    <isset property="targetFileExisting" />
   </not>
   <then>
    <antcall target="copyTargetFile" />
   </then>
   <elseif>
    <isset property="targetFileExisting" />
    <then>
     <antcall target="overrideTargetFile" />
    </then>
   </elseif>
  </if>
  <echo>deploy system files over</echo>
 </target>

 <target name="overrideTargetFile">
  <limit seconds="${timeoutSecond}">
   <input validargs="y,n" addproperty="answer" defaultvalue="n" message="file '${targetFile}' already existed,do you want to override?" />
  </limit>
  <condition property="override">
   <equals arg1="y" arg2="${answer}" />
  </condition>
  <if>
   <isset property="override" />
   <then>
    <echo>override the file...</echo>
    <copy tofile="${targetFile}" file="${originalFile}" overwrite="true" encoding="ms932" />
   </then>
  </if>
 </target>
 <target name="copyTargetFile">
  <echo>file ${targetFile} dose not existed,deploying this file</echo>
  <copy file="${originalFile}" tofile="${targetFile}" encoding="ms932" />
 </target>
 <!-- end copy system files. -->

import com.sshtools.net.*;
import com.sshtools.sftp.*;

/**
 * This example demonstrates the connection process connecting to an SSH2 server
 * and usage of the SFTP client.
 */
public class MySftpConnect {
 public static void main(String[] args) {
  MySftpConnect c = new MySftpConnect();
  c.createSftpClient("192.168.0.108", "szb", "szbpatternx86", 22);－－参数依次为主机名，用户名，密码，端口号。
 }

 public void createSftpClient(String hostname, String username,
   String password, int port) {
  try {
   System.out.println("Connecting to " + hostname);

   // Create an SshConnector instance
   SshConnector con = SshConnector.getInstance();

   // Connect to the host
   SocketTransport t = new SocketTransport(hostname, port);
   t.setTcpNoDelay(true);
   SshClient ssh = con.connect(t, username);
   Ssh2Client ssh2 = (Ssh2Client) ssh;

   // Authenticate the user using password authentication
   com.maverick.ssh.PasswordAuthentication pwd = new com.maverick.ssh.PasswordAuthentication();
   do {
    pwd.setPassword(password);
   } while (ssh2.authenticate(pwd) != SshAuthentication.COMPLETE
     && ssh.isConnected());
   // Start a session and do basic IO
   if (ssh.isAuthenticated()) {
    SftpClient sftp = new SftpClient(ssh2);
    // test create file.
    this.createTestFile(sftp);
   }
  } catch (Throwable th) {
   th.printStackTrace();
  }
 }

//测试IO操作
 public void createTestFile(SftpClient sftp) throws Exception {

  File textFile = new File(System.getProperty("user.home"), "shining.txt");
  FileOutputStream tout = new FileOutputStream(textFile);

  // Create a file with \r\n as EOL
  for (int i = 0; i < 100; i++) {
   tout.write("All work and no play makes Jack a dull boy中文\r\n"
     .getBytes());
  }
  tout.close();

  // Perform some text mode operations指定文件存储为txt类型
  sftp.setTransferMode(SftpClient.MODE_TEXT);

  // Tell the client which EOL the remote client is using - note
  // that this will be ignored with version 4 of the protocol
  sftp.setRemoteEOL(SftpClient.EOL_LF);
  //将文件上传到服务器
  sftp.put(textFile.getAbsolutePath());
 }
}

写的不太详细，请参考：http://3sp.com/kb/idx/0/014/article/Getting_started_with_J2SSH_Maverick.html

2. PostgreSQL(http://www.de.postgresql.org)pgjdbc2.jar
Class.forName( "org.postgresql.Driver" );
cn = DriverManager.getConnection( "jdbc:postgresql://MyDbComputerNameOrIP/myDatabaseName", sUsr, sPwd );

3. Oracle(http://www.oracle.com/ip/deploy/database/oracle9i/)classes12.zip
Class.forName( "oracle.jdbc.driver.OracleDriver" );
cn = DriverManager.getConnection( "jdbc:oracle:thin:@MyDbComputerNameOrIP:1521:ORCL", sUsr, sPwd );
4. Sybase(http://jtds.sourceforge.net)jconn2.jar

Class.forName( "com.sybase.jdbc2.jdbc.SybDriver" );
cn = DriverManager.getConnection( "jdbc:sybase:Tds:MyDbComputerNameOrIP:2638", sUsr, sPwd );
//(Default-Username/Password: "dba"/"sql")

5. Microsoft SQLServer(http://jtds.sourceforge.net)
Class.forName( "net.sourceforge.jtds.jdbc.Driver" );
cn = DriverManager.getConnection( "jdbc:jtds:sqlserver://MyDbComputerNameOrIP:1433/master", sUsr, sPwd );

6. Microsoft SQLServer(http://www.microsoft.com)
Class.forName( "com.microsoft.jdbc.sqlserver.SQLServerDriver" );
cn = DriverManager.getConnection( "jdbc:microsoft:sqlserver://MyDbComputerNameOrIP:1433;databaseName=master", sUsr, sPwd );

7. ODBC
Class.forName( "sun.jdbc.odbc.JdbcOdbcDriver" );
Connection cn = DriverManager.getConnection( "jdbc:odbc:" + sDsn, sUsr, sPwd );

8.DB2(新添加)
Class.forName("com.ibm.db2.jdbc.net.DB2Driver");
String url="jdbc:db2://192.9.200.108:6789/SAMPLE"
cn = DriverManager.getConnection( url, sUsr, sPwd );

9.Microsoft SQL Server series (6.5, 7.x and 2000) and Sybase 10

JDBC Name: jTDS
URL: http://jtds.sourceforge.net/
Version: 0.5.1
Download URL: http://sourceforge.net/project/showfiles.php?group_id=33291

语法:
Class.forName("net.sourceforge.jtds.jdbc.Driver ");
Connection con = DriverManager.getConnection("jdbc:jtds:sqlserver://host:port/database","user","password");
or
Connection con = DriverManager.getConnection("jdbc:jtds:sybase://host:port/database","user","password");

10.Postgresql
JDBC Name: PostgreSQL JDBC
URL: http://jdbc.postgresql.org/
Version: 7.3.3 build 110
Download URL: http://jdbc.postgresql.org/download.html
语法:
Class.forName("org.postgresql.Driver");
Connection con=DriverManager.getConnection("jdbc:postgresql://host:port/database","user","password");

11.IBM AS400主机在用的JDBC语法
有装V4R4以上版本的Client Access Express
可以在C:\Program Files\IBM\Client Access\jt400\lib
找到 driver 档案 jt400.zip，并更改扩展名成为 jt400.jar
语法:
java.sql.DriverManager.registerDriver (new com.ibm.as400.access.AS400JDBCDriver ());
Class.forName("com.ibm.as400.access.AS400JDBCConnection");
con = DriverManager.getConnection("jdbc:as400://IP","user","password");

12.informix
Class.forName("com.informix.jdbc.IfxDriver").newInstance();
String url =
"jdbc:informix-sqli://123.45.67.89:1533/testDB:INFORMIXSERVER=myserver;
user=testuser;password=testpassword";
Lib：jdbcdrv.zip

Class.forName( "com.sybase.jdbc.SybDriver" )
url="jdbc:sybase:Tds:127.0.0.1:2638/asademo";
SybConnection connection= (SybConnection)DriverManager.getConnection(url,"dba","sql");

13.SAP DB
Class.forName ("com.sap.dbtech.jdbc.DriverSapDB");
java.sql.Connection connection = java.sql.DriverManager.getConnection ( "jdbc:sapdb://" + host + "/" + database_name,user_name, password)

14.InterBase
String url = "jdbc:interbase://localhost/e:/testbed/database/employee.gdb";
Class.forName("interbase.interclient.Driver");
//Driver d = new interbase.interclient.Driver (); /* this will also work if you do not want the line above */
Connection conn = DriverManager.getConnection( url, "sysdba", "masterkey" );

15.HSqlDB
url: http://hsqldb.sourceforge.net/
driver: org.hsqldb.jdbcDriver
连接方式有4种，分别为：
con-str（内存）: jdbc:hsqldb.
con-str（本地）: jdbc:hsqldb:/path/to/the/db/dir
con-str（http）: jdbc:hsqldb:http://dbsrv
con-str（hsql）: jdbc:hsqldb:hsql://dbsrv