IP自愿扫描

在网管的设计中，经常要对ip资源进行扫描，来确定ip资源使用情况和历史的活跃ip。传统的办法就是对路由交换的fdb和arp的数据进行分析，然后得出ip的资源信息。但是在经常的情况。

     但是很多分析一个ip段的数据，有时候因为网络的复杂，无法准确取到ip相关信息，造成ip资源扫描的误差。这里我们主要介绍2个算法，都是通过多线程来扫描一个网段的ip资源和一个设备的端口资源。

     核心的分析类的源代码：

package com.shine.NetAnalisys;

import java.util.List;

import com.shine.NetAnalisys.model.NetAnalyzeCallBack;
import com.shine.NetAnalisys.threadModel.NetPortThreadModel;
import com.shine.NetAnalisys.threadModel.NetScanThreadModel;
import com.shine.NetAnalisys.util.NetWorkUtil;
import com.shine.framework.ThreadPoolUtil.ThreadPoolManager;
import com.shine.framework.ThreadPoolUtil.util.SuperThread;

/**
 * 网络分析类库 主要包括ip扫描，端口分析
 *
 * @author [email protected]
 *
 */
publicclass NetAnalisysManager {
privatestatic NetAnalisysManager manager = null;

privateint netScanSize = 10;

privateint netPortSize = 10;

publicstatic NetAnalisysManager getManager() {
if (manager == null)
            manager = new NetAnalisysManager();
return manager;
    }

publicvoid initThreadModel() {
        initNetScanThreadModel();
        initNetPortThreadModel();
    }

publicvoid initNetScanThreadModel() {
for (int i = 0; i < netScanSize; i++) {
            addNetScanThreadModel(i);
        }
        ThreadPoolManager.getManager().startThreadPool();
    }

publicvoid initNetPortThreadModel() {
for (int i = 0; i < netPortSize; i++) {
            addNetPortThreadModel(i);
        }
        ThreadPoolManager.getManager().startThreadPool();
    }

privatevoid addNetScanThreadModel(int i) {
        NetScanThreadModel threadModel = new NetScanThreadModel();
        threadModel.setThreadName("netScanThreadModel" + i);
        ThreadPoolManager.getManager().addThread(threadModel);
        threadModel = null;
    }

privatevoid addNetPortThreadModel(int i) {
        NetPortThreadModel threadModel = new NetPortThreadModel();
        threadModel.setThreadName("netPortThreadModel" + i);
        ThreadPoolManager.getManager().addThread(threadModel);
        threadModel = null;
    }

/**
     * 开始执行网络扫描
     *
     * @param startIp
     * @param endIp
     * @param callback
     * @param methodName
     */
publicvoid startNetScan(String startIp, String endIp,
            NetAnalyzeCallBack callback, String methodName) {
        List ipRangeList = NetWorkUtil.seperateIpRange(startIp,
                endIp, 2);
int index = 0;
        callback.setAnalyzeFinished(false);
long firstTime = System.currentTimeMillis();
while (index < ipRangeList.size()) {
// 获取空闲线程，如果线程繁忙则等待
            SuperThread theThread = ThreadPoolManager.getManager()
                    .getIdleThread("netScanThreadModel");
if (theThread != null) {
                NetScanThreadModel netScanModel = (NetScanThreadModel) theThread
                        .getThreadModel();
if (netScanModel.getObject() == null) {
                    netScanModel.setObject(callback);
                }
                netScanModel.setMethodName(methodName);
                theThread.setValues(ipRangeList.get(index));
                index++;
            } else {
try {
                    Thread.sleep(500);
                } catch (InterruptedException e) {
                }
            }
        }
while (ThreadPoolManager.getManager().getIdleThreadSize(
"netScanThreadModel") != this.netScanSize) {
try {
                Thread.sleep(500);
            } catch (InterruptedException e) {
            }
        }
        callback.setAnalyzeFinished(true);
long passTime = System.currentTimeMillis() - firstTime;
// System.out.println("执行所需时间:" + passTime);
// ThreadPoolManager.getManager().stopThreadPool();
    }

/**
     * 开始执行端口扫描
     *
     * @param ip
     * @param minPort
     * @param maxPort
     * @param callback
     * @param methodName
     */
publicvoid startNetPort(String ip, int minPort, int maxPort,
            NetAnalyzeCallBack callback, String methodName) {
        List ipPortList = NetWorkUtil.seperateIpPort(ip, minPort,
                maxPort);
int index = 0;
        callback.setAnalyzeFinished(false);
while (index < ipPortList.size()) {
// 获取空闲线程，如果线程繁忙则等待
            SuperThread theThread = ThreadPoolManager.getManager()
                    .getIdleThread("netPortThreadModel");
if (theThread != null) {
                NetPortThreadModel netPortModel = (NetPortThreadModel) theThread
                        .getThreadModel();
                netPortModel.setObject(callback);
                netPortModel.setMethodName(methodName);
                theThread.setValues(ipPortList.get(index));
                index++;
            } else {
try {
                    Thread.sleep(1000);
                } catch (InterruptedException e) {
                }
            }
        }
        callback.setAnalyzeFinished(true);
    }

publicvoid stopNetScanThread() {
        ThreadPoolManager.getManager().stopThreadPool("netScanThreadModel");
    }

publicvoid stopNetPortThread() {
        ThreadPoolManager.getManager().stopThreadPool("netPortThreadModel");
    }

publicint getNetScanSize() {
return netScanSize;
    }

publicvoid setNetScanSize(int netScanSize) {
this.netScanSize = netScanSize;
    }

publicint getNetPortSize() {
return netPortSize;
    }

publicvoid setNetPortSize(int netPortSize) {
this.netPortSize = netPortSize;
    }
}

  调用的例子，ip段扫描：

package com.shine.NetAnalisys;

import com.shine.NetAnalisys.model.NetPortCallBack;
import com.shine.NetAnalisys.model.NetScanCallBack;

publicclass Example {
publicstaticvoid main(String args[]) {
        NetAnalisysManager.getManager().setNetScanSize(10);
        NetAnalisysManager.getManager().initThreadModel();

long curTime = System.currentTimeMillis();
        NetScanCallBack callback = new NetScanCallBack();
        NetAnalisysManager.getManager().startNetScan("192.168.11.1", "192.168.11.255", callback, "callback");
for (String ip : callback.getIpList()) {
            System.out.println("接收IP" + ip + "可ping通");
        }
        System.out.println("执行时间" + (System.currentTimeMillis() - curTime));
    }
}

 调用端口扫描的代码：

package com.shine.NetAnalisys;

import com.shine.NetAnalisys.model.NetPortCallBack;
import com.shine.NetAnalisys.model.NetScanCallBack;

publicclass Example {
publicstaticvoid main(String args[]) {
        NetAnalisysManager.getManager().setNetScanSize(10);
        NetAnalisysManager.getManager().initThreadModel();

long curTime = System.currentTimeMillis();
        NetScanCallBack callback = new NetScanCallBack();
        NetAnalisysManager.getManager().startNetScan("192.168.11.1", "192.168.11.255", callback, "callback");
for (String ip : callback.getIpList()) {
            System.out.println("接收IP" + ip + "可ping通");
        }
        System.out.println("执行时间" + (System.currentTimeMillis() - curTime));
    }
}

下载的地址（jar含源代码）：

    http://ken-javaframeword.googlecode.com/files/javaFramework2_5_2.jar

    svn地址：http://code.google.com/p/ken-javaframeword/

    全部代码请参照svn，上面代码只能导入jar包后执行