java ²Ù×÷¶ÌÐÅèʵÏÖ¶ÌÐÅȺ·¢
²ÉÓô®¿Ú²Ù×÷½øÐжÌÐÅÊÕ·¢,ÊDZȽϳ£¼ûµÄÒ»ÖÖ·½Ê½.±ÈÈç,ºÜ¶àȺ·¢Èí¼þ,ÓõľÍÊÇÕâÖÖ·½·¨.
1.ÅäÖÃcomm.jar.
Comm.jarÊÇSubʵÏֵײ㴮¿Ú²Ù×÷µÄAPI,µ÷ÓÃÁ˱¾µØµÄDLLÎļþ,ÒòΪJava±¾Éí²»¾ß±¸Ö±½Ó·ÃÎÊÓ²¼þÉèÖõÄÄÜÁ¦,¶¼ÊÇͨ¹ýµ÷Óñ¾µØ·½·¨À´Êµ
ÏÖµÄ.¿ÉÒÔJavaµÄ¹Ù·½ÍøÕ¾ÏÂÔØ.ÏÂÔØÖ®ºó°ÑÆäÖÐComm.jar°üµ¼Èëµ½¹¤³ÌµÄClasspathÖÐ,°ÑÁíÍâÁ½¸ö·Ç³£ÖØÒªµÄÎļþ
javax.comm.propertiesºÍwin32com.dll¿¼±´µ½ÄãµÄ¹¤³ÌĿ¼ÏÂ,¼´java.userÏÂ.
2.´ò¿ª´®¿Ú.
ÔÚ´ò¿ª´®¿ÚǰÊ×ÏÈÒª¼ÓÔØWin32com.dll,ÒòΪÎÒÃÇûÓаÑËü·Åµ½JRE·¾¶ÏÂ,ËùÒÔ±ØÐëÒª×Ô¼ºÏÔʽµÄ¼ÓÔØ.
String driverName = "com.sun.comm.Win32Driver";
CommDriver driver = null;
try {
System.loadLibrary("win32com");
driver = (CommDriver) Class.forName(driverName).newInstance();
driver.initialize();
} catch (InstantiationException e1) {
logger.error("1:" + e1.getMessage());
} catch (IllegalAccessException e1) {
logger.error("2:" + e1.getMessage());
} catch (ClassNotFoundException e1) {
logger.error(e1.getMessage());
}
È»ºó»ñÈ¡ÄãÖ¸¶¨µÄ¶Ë¿Ú:
SerialPort sPort = null;
CommPortIdentifier portID;
String owner = new String("modemn");
int keeptime = 5000;
Enumeration portList;
portList = CommPortIdentifier.getPortIdentifiers();
// Èç¹ûÓжà¸ö¶Ë¿Ú
while (portList.hasMoreElements()) {
portID = (CommPortIdentifier) portList.nextElement();
if (portID.getName().equals(com))
try {
sPort = (SerialPort) portID.open(owner, keeptime);
break;
}// ´ò¿ªÒ»¸ö´®¿Ú
catch (PortInUseException e) {
logger.fatal(e.getMessage());
System.exit(1);
}
}// while
³É¹¦´ò¿ª¶Ë¿ÚÖ®ºó,ÉèÖö˿ڵÄÏà¹Ø²ÎÊý,Èç²¨ÌØÂÊ¡¢Êý¾Ýλ¡¢ÆæÅ¼Ð£ÑéλµÈ.Õâ¸ö¸ú¾ßÌåµÄÉ豸ÓйØ,²»¹ýÒ»°ãÇé¿öϲ¨ÌØÂÊΪ9600£¬Êý¾ÝλΪ8£¬Í£Ö¹Î»Îª1£¬ÆæÅ
Ïà¹ØÎĵµ£º
±¾ÎĽéÉÜJavaµÄBigDecimalÀàµÄÓ¦Óá£JavaÔÚjava.math°üÖÐÌṩµÄAPIÀàBigDecimal£¬ÓÃÀ´¶Ô³¬¹ý16λÓÐЧλµÄÊý½øÐо«È·µÄÔËËã¡£
BigDecimalÀà
Ë«¾«¶È¸¡µãÐͱäÁ¿double¿ÉÒÔ´¦Àí16λÓÐЧÊý¡£ÔÚʵ¼ÊÓ¦ÓÃÖУ¬ÐèÒª¶Ô¸ü´ó»òÕ߸üСµÄÊý½øÐÐÔËËãºÍ´¦Àí¡£JavaÔÚjava.math°üÖÐÌṩµÄAPIÀàBigDecimal£¬ÓÃÀ´¶Ô³¬¹ý16λÓÐЧλµÄÊý½øÐо«È· ......
¶ÔÓÚJava³ÌÐò£¬ÎÞÂÛÊÇδ´ò°üµÄ»¹ÊÇ´ò°üµÄJAR»òWARÎļþ£¬ÓÐʱºò¶¼ÐèÒª»ñÈ¡ËüÔËÐÐËùÔÚĿ¼ÐÅÏ¢£¬ÈçºÎ×öµ½ÕâÒ»µãÄØ£¿
ÔÚJava´¦ÀíµÄÎļþϵͳÖУ¬Ä¿Â¼µÄ±íʾ·½Ê½ÓÐÁ½ÖÖ£º
£¨1£©¾ø¶ÔĿ¼£¬ËüÒÔ"/"ΪÆðʼ×Ö·û£¬´ú±í´Ó¸ùĿ¼Ï¿ªÊ¼Ñ°ÕÒ¸ø³öµÄĿ¼£¬Èç/c:/java
£¨2£©Ïà¶Ô·¾¶£¬ËüÒÔ²»´ø“/”µÄĿ¼Ãû±íʾ£¬±íʾÒÔµ±Ç ......
String[] ips = ipValue.split("\\.");
String binaryVal = "";
for (int i = 0; i < ips.length; i++)
{
String binaryStr = Integer.toBinaryString(Integer.parseInt(ips[i]));
Integer times = 8 - binaryStr.length();
......
×î½üÔÚÔÛÃÇÕâ¸öÂÛ̳Àï×ÜÄÜ¿´¼û´ó¼ÒÌá³öÓÃjava´¦ÀíExcelµÄÎÊÌ⣬ÓÐʱ»¹Éæ¼°µ½Í¼ÐεÄÎÊÌ⣬
´ó¼Ò¿´ÁËÕâÆªÎÄÕºó£¬ÎÒÏëÒ»¶¨»á½â¾ö²»ÉÙÈ˵ÄÎÊÌ⣡
¿´µ½ÍøÉϺܶàÎÄÕ¶¼Ò»Ö±¶¼ÊÇ˵POIµÄAPI²»ÄÜ´¦ÀíͼÐΣ¬Ò²¾ÍÊDz»ÄÜÍùExcelÀïÃæ¼ÓÈëͼÐΡ£
µ«ÊÂʵÉÏ£¬POI3.0³öÀ´Ö®ºó£¬Õâ¸öÎÊÌâÒѾ½â¾ö£¡ËùÒÔ˵£¬ÍùExcelÀïÃæ¼ÓÈëͼÐβ»±ØÒ»¶¨Ç ......