ͨ¹ýjavaºÍsnmp»ñÈ¡±¾»úµÄÍø¹ØµØÖ·
±ÏÒµÉè¼ÆÓöµ½Ò»¸öÎÊÌ⣬Èç¹û²ÅÄÜ»ñµÃ±¾»úµÄÍø¹ØµØÖ·£¬ÎÊÁ˰ٶȺÍgoogle£¬ËƺõÕÒ²»µ½´ð°¸£¬ÓÚÊÇÔÚÂÛ̳Àï·¢ÌûÎÊÀÏÄñÃÇ£¬ÔÚËûÃǵÄÌáʾÏ£¬ÊµÏÖÁË»ñÈ¡Íø¹ØµÄµØÖ·£¬ÕâÀïÖ÷ÒªÊÇͨ¹ýsnmpÐÒé¶ÁÈ¡±¾»úµÄmib¿â£¬ÒòΪOIDΪ1.3.6.1.2.1.4.21.1.7¶ÔÓ¦µÄÊÇipRouteNextHop£¬Ò²¾ÍÊÇÏÂÒ»ÌøÂ·ÓÉ£¬¶Ô±¾»úÀ´Ëµ¾Í˵ĬÈÏÍø¹ØÁË£¬ÕâÀïÓõ½ÁËsnmp4jÕâ¸ö°ü£¬ÓÃÓÚʵÏÖsnmpÐÒéµÄÏà¹Ø²Ù×÷£¬Ö®Ç°µÄ²©ÎÄÒ²ÓнéÉÜsnmp4jµÄ¼òµ¥Ê¹Óã¬ÏÂÃæ¾ÍÉÏ´úÂëÁË£º
//ʹÓõ½µÄÀà
import java.io.IOException;
import java.net.InetAddress;
import java.net.UnknownHostException;
import org.snmp4j.CommunityTarget;
import org.snmp4j.PDU;
import org.snmp4j.Snmp;
import org.snmp4j.TransportMapping;
import org.snmp4j.event.ResponseEvent;
import org.snmp4j.mp.SnmpConstants;
import org.snmp4j.smi.Address;
import org.snmp4j.smi.GenericAddress;
import org.snmp4j.smi.OID;
import org.snmp4j.smi.OctetString;
import org.snmp4j.smi.VariableBinding;
import org.snmp4j.transport.DefaultUdpTransportMapping;
//ÏÂÃæÖ»ÊÇÒ»¸ö·½·¨
public String getIpOfGateway(){
String gatewayIpString=null; //Íø¹ØipµØÖ·ÊÇÕâ¸ö×Ö·û´®µÄ×Ó´®
String gatewayIp=null; // ÕâÊÇ´ú±íÍø¹Øip
try {
/**
* Set properties of target
*/
CommunityTarget localhost = new CommunityTarget();
Address address = GenericAddress.parse("udp:127.0.0.1/161");
localhost.setAddress(address);
localhost.setCommunity(new OctetString("public"));
localhost.setRetries(2);
localhost.setTimeout(5*60);
localhost.setVersion(SnmpConstants.version2c);
/**
* Set protocols of UDP and SNMP
*/
TransportMapping transport = new DefaultUdpTransportMapping();
transport.listen();
Snmp protocol = new Snmp(transport);
/**
* OID binding
*/
PDU requestPDU = new PDU();
requestPDU.ad
Ïà¹ØÎĵµ£º
¾³£Óõ½µç¿ÏÂÔØ×ÊÁÏ,һЩhttpÄã¸ù±¾ÕÒ²»µ½µÄ×ÊÔ´,µ±È»ËÙ¶ÈÊDz»Äܹ§Î¬ÁË,¿×Óô,¸ÉµÄ¾ÍÊÇÂý»î,ÈÈÃÅ×ÊÔ´³ýÍâ…
ÎÒÓõÄverycd°æµÄµç¿,Ô°æµç¿µÄÒ»ÖÖmods,µçÂ¿Ã²ËÆÓÐN¶à°æ±¾,²»¹ýÎÒ¾õµÃverycdµÄ¾Í¹»ÓÃÁË,±Ï¾¹¹úÄڰ˳ɵÄÈ˶¼ÔÚÓÃ.
×î½üÔÚÏÂж«·½µÄиÅÄîÓ¢Óï½Ì³Ì,½ø¶È87%,ÑÛ¿´ÒªÏÂÍêÁË,µÈÒªµÈ1¸ö¶àСʱ,ÏÂÔØÍê³ÉÓ ......
Ïß³Ì×é
ÔÚJavaÖÐÿһ¸öÏ̶߳¼¹éÊôÓÚij¸öÏß³Ì×é¹ÜÀíµÄÒ»Ô±£¬ÀýÈçÔÚÖ÷º¯Êýmain()Ö÷¹¤×÷Á÷³ÌÖвúÉúÒ»¸öỊ̈߳¬Ôò²úÉúµÄÏß³ÌÊôÓÚmainÕâ¸öÏß³Ì×é¹ÜÀíµÄÒ»Ô±¡£¼òµ¥µØËµ£¬Ïß³Ì×é¾ÍÊÇÓÉÏß³Ì×é³ÉµÄ¹ÜÀíÏ̵߳ÄÀ࣬Õâ¸öÀàÊÇjava.lang.ThreadGroupÀà¡£
¿ÉÒÔͨ¹ýʹÓÃÈçÏ´úÂë»ñÈ¡´ËÏß³ÌËùÊôÏß³Ì×éµÄÃû³Æ¡£
Thread.currentThread().ge ......
ÃæÏò¶ÔÏó³ÌÐòÉè¼Æ¹²ÓÐÈý´óÌØÐÔ£º·â×°¡¢¼Ì³Ð¡¢¶à̬£»
ÕâÈý´óÌØÐÔÖ®¼äÏ໥¹ØÁª£¬ÆäÖзâ×°ÐÔÊÇÃæÏò¶ÔÏóµÄ»ù´¡£¬¼Ì³ÐÐÔÊÇÈí¼þÖØÓõĹؼü¡£¶ø¶à̬ÐÔÔò±ØÐë´æÔÚÓڼ̳еĻ·¾³Ö®ÖУ¬ÊǶÔÃæÏò¶ÔÏó³ÌÐòÉè¼ÆµÄ²¹³ä¡£
·â×°£»
Java5.0ÐÂÌØÐÔ£»»ù±¾Êý¾ÝÀàÐÍà·â×°Àà ·âÏ䣻 ·â×°Ààà»ù±¾Êý¾ÝÀàÐÍ ²ðÏ䣻
package review;
......
java£º4Àà8ÖÖ»ù´¡Êý¾ÝÀàÐÍ£º
ÕûÐÍ£ºbyte short int long
¸¡µãÐÍ: float double
²¼¶ûÐÍ£ºboolean
×Ö·ûÐÍ£ºchar
³ýÁË4Àà8ÖÖ»ù´¡Êý¾ÝÀàÐÍ£¬ÆäËûµÄÊý¾ÝÀàÐͶ¼ÊÇÒýÓÃÀàÐÍÀýÈ綨ÒåµÄclass µÈµÈ£¬ÕâÒ»µãÒì³£ÖØÒª¡£·ñÔò»áµ¼ÖÂÔÚʹÓÃcontainerʱ³ö´í£¬Ã¿Ìí¼ÓÒ»¸ö¶ÔÏó½øÈëcontainer¶¼±ØÐëÊÇÒ»¸ö¶ÔÏó¶ø²» ......
1¡¢ ÈÏʶThreadºÍRunnable
JavaÖÐʵÏÖ¶àÏß³ÌÓÐÁ½ÖÖ;¾¶£º¼Ì³ÐThreadÀà»òÕßʵÏÖRunnable½Ó¿Ú¡£RunnableÊǽӿڣ¬½¨ÒéÓýӿڵķ½Ê½Éú³ÉỊ̈߳¬ÒòΪ½Ó¿Ú¿ÉÒÔʵÏÖ¶à¼Ì³Ð£¬¿öÇÒRunnableÖ»ÓÐÒ»¸örun·½·¨£¬ºÜÊʺϼ̳С£ÔÚʹÓÃThreadµÄʱºòÖ»Ðè¼Ì³ÐThread£¬²¢ÇÒnewÒ»¸öʵÀý³öÀ´£¬µ÷ÓÃstart()·½·¨¼´¿ÉÒÔÆô¶¯Ò»¸öÏ̡߳£
Thread Test = ......