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書接上回，
上回說到，武松武二郎斗殺西門慶，為大哥報了仇……? !!!-_- 啊，說串了，嘿嘿不好意思
（刪掉上面一行）
上回說到，我們的設置頁面已經做好了，接下來就是將時間轉換為Unix Cron Expression。

2) 將時間轉換為Unix Cron Expression

需要ActionForm將頁面表單數據映射到Action中，然后在Action中轉換為cron expression：

SchedulerForm?schedulerForm? = ?(SchedulerForm)?form;
?2

????????String?jobName? = ?schedulerForm.getJobName();
?3

????????String?cronExpression? = ? "" ;
?4

????????String[]?commonNeeds? = ? {schedulerForm.getSecond(),?schedulerForm.getMinute(),?schedulerForm.getHour()} ;
?5

????????String[]?monthlyNeeds? = ? {schedulerForm.getWeek(),?schedulerForm.getDayOfMonth()} ;
?6

????????String?weeklyNeeds? = ?schedulerForm.getDayOfWeek();
?7

????????String?userDefinedNeeds? = ?schedulerForm.getDate();
?8

????????String?everyWhat? = ?schedulerForm.getEveryWhat();
?9

???????? // 得到時間規則
10

????????cronExpression? = ?CronExpConversion.getCronExpression(everyWhat,?commonNeeds,
11

????????????????monthlyNeeds,?weeklyNeeds,?userDefinedNeeds);
12

我定義了一個規則類來處理轉換規則（寫得不是很好能用就行嘿嘿）

/**
?3

?*?頁面設置轉為UNIX?cron?expressions?轉換類
?4

?*?CronExpConversion
?5

? */
?6

public ? class ?CronExpConversion? {
?7

????
?8

???? /**
?9

?????*?頁面設置轉為UNIX?cron?expressions?轉換算法
10

?????*? @param ?everyWhat
11

?????*? @param ?commonNeeds?包括?second?minute?hour
12

?????*? @param ?monthlyNeeds?包括?第幾個星期?星期幾
13

?????*? @param ?weeklyNeeds??包括?星期幾
14

?????*? @param ?userDefinedNeeds??包括具體時間點
15

?????*? @return ?cron?expression
16

????? */
17

???? public ? static ?String?convertDateToCronExp(String?everyWhat,
18

????????????String[]?commonNeeds,?String[]?monthlyNeeds,?String?weeklyNeeds,
19

????????????String?userDefinedNeeds)? {
20

????????String?cronEx? = ? "" ;
21

????????String?commons? = ?commonNeeds[ 0 ]? + ? " ? " ? + ?commonNeeds[ 1 ]? + ? " ? "
22

???????????????? + ?commonNeeds[ 2 ]? + ? " ? " ;
23

????????String?dayOfWeek? = ? "" ;
24

???????? if ?( " monthly " .equals(everyWhat))? {
25

???????????? // ?eg.:?6#3?(day?6?=?Friday?and?"#3"?=?the?3rd?one?in?the
26

???????????? // ?month)
27

????????????dayOfWeek? = ?monthlyNeeds[ 1 ]
28

???????????????????? + ?CronExRelated.specialCharacters
29

????????????????????????????.get(CronExRelated._THENTH)? + ?monthlyNeeds[ 0 ];
30

????????????cronEx? = ?(commons
31

???????????????????? + ?CronExRelated.specialCharacters.get(CronExRelated._ANY)
32

???????????????????? + ? " ? "
33

???????????????????? + ?CronExRelated.specialCharacters.get(CronExRelated._EVERY)
34

???????????????????? + ? " ? " ? + ?dayOfWeek? + ? " ? " ).trim();
35

????????} ? else ? if ?( " weekly " .equals(everyWhat))? {
36

????????????dayOfWeek? = ?weeklyNeeds;? // ?1
37

????????????cronEx? = ?(commons
38

???????????????????? + ?CronExRelated.specialCharacters.get(CronExRelated._ANY)
39

???????????????????? + ? " ? "
40

???????????????????? + ?CronExRelated.specialCharacters.get(CronExRelated._EVERY)
41

???????????????????? + ? " ? " ? + ?dayOfWeek? + ? " ? " ).trim();
42

????????} ? else ? if ?( " userDefined " .equals(everyWhat))? {
43

????????????String?dayOfMonth? = ?userDefinedNeeds.split( " - " )[ 2 ];
44

???????????? if ?(dayOfMonth.startsWith( " 0 " ))? {
45

????????????????dayOfMonth? = ?dayOfMonth.replaceFirst( " 0 " ,? "" );
46

????????????}
47

????????????String?month? = ?userDefinedNeeds.split( " - " )[ 1 ];
48

???????????? if ?(month.startsWith( " 0 " ))? {
49

????????????????month? = ?month.replaceFirst( " 0 " ,? "" );
50

????????????}
51

????????????String?year? = ?userDefinedNeeds.split( " - " )[ 0 ];
52

???????????? // FIXME?暫時不加年份?Quartz報錯
53

???????????? /* cronEx?=?(commons?+?dayOfMonth?+?"?"?+?month?+?"?"
54

????????????????????+?CronExRelated.specialCharacters.get(CronExRelated._ANY)
55

????????????????????+?"?"?+?year).trim(); */
56

????????????cronEx? = ?(commons? + ?dayOfMonth? + ? " ? " ? + ?month? + ? " ? "
57

???????????????????? + ?CronExRelated.specialCharacters.get(CronExRelated._ANY)
58

???????????????????? + ? " ? " ).trim();
59

????????}
60

???????? return ?cronEx;
61

????} ????
62

}
63

這樣就將頁面的時間設置轉為了Cron Expression。

?????????? ??????????????????????????????????????? To Be Continued...

posted on 2007-01-10 16:15 小立飛刀閱讀(5072) 評論(3) 編輯收藏所屬分類: Spring

FeedBack:

# re: Spring Quartz如何動態配置時間（2）

2007-01-10 18:34 | zxy

好好好不錯不錯回復更多評論

# re: Spring Quartz如何動態配置時間（2）[未登錄]

2007-10-15 09:09 | CC

能否提供下CronExRelated類的代碼？

貌似不是spring或者quartz包里的回復更多評論

# re: Spring Quartz如何動態配置時間（2）

2007-10-15 09:40 | 小立飛刀

@CC
這個類封裝了一些Quartz時間規則的常量，便于自己使用，定義比較靈活，可以根據您的具體情況擴展。

/**
* Quartz時間規則常量類
* CronExRelated
* @author allen
*/
public class CronExRelated {

public static final String _EVERY = "every";
public static final String _ANY = "any";
public static final String _RANGES = "ranges";
public static final String _INCREMENTS = "increments";
public static final String _ADDITIONAL = "additional";
public static final String _LAST = "last";
public static final String _WEEKDAY = "weekday";
public static final String _THENTH = "theNth";
public static final String _CALENDAR = "calendar";

public static final String _TYPE = "type";

/**
* 0 0 6 ? * 1#1 ? monthly
* 0 0 6 ? * 1 ? weekly
* 0 0 6 30 7 ? 2006 useDefined
*/
static String[] headTitle = {"TYPE","SECONDS","MINUTES","HOURS","DAYOFMONTH","MONTH","DAYOFWEEK","YEAR"};

/**
* cron expression special characters
* Map
* specialCharacters
*/
public static Map specialCharacters;

static {
specialCharacters = new HashMap(10);
specialCharacters.put(_EVERY, "*");
specialCharacters.put(_ANY, "?");
specialCharacters.put(_RANGES, "-");
specialCharacters.put(_INCREMENTS, "/");
specialCharacters.put(_ADDITIONAL, ",");
specialCharacters.put(_LAST, "L");
specialCharacters.put(_WEEKDAY, "W");
specialCharacters.put(_THENTH, "#");
specialCharacters.put(_CALENDAR, "C");

specialCharacters.put(_TYPE, headTitle);
}

public static void set(String ex, int index) {
((String[])specialCharacters.get(_TYPE))[index] = ex;
}

} 回復更多評論

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相關文章: 又見“ORA-01461: 僅可以為插入 LONG 列的 LONG 值賦值”！ Spring的依賴關系（JAR） Spring Quartz如何動態配置時間（3） Spring Quartz如何動態配置時間（2） Spring Quartz如何動態配置時間（1） Quartz Cron Expression

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生存或毀滅，這是個必答之問題：是否應默默的忍受坎苛命運之無情打擊，還是應與深如大海之無涯苦難奮然為敵，并將其克服。此二抉擇，究竟是哪個較崇高？

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