网页主动探测工具-使用Reactor模式

接前文
http://blog.itpub.net/29254281/viewspace-1344706/
http://blog.itpub.net/29254281/viewspace-1347985/
http://blog.itpub.net/29254281/viewspace-2134876/

之前的代码被大神怼了..被怒批杂乱无章，误人子弟
我估计主要是因为面向对象的程度不够.过程化太明显了

在网上找了一个Reactor模式的例子,又改了改自己的程序.
因为Oracle太笨重了,这回干脆换了MySQL好了

改写之后的程序,在我的电脑上,使用 2线程,最大500连接的配置,性能最好。

import java.io.IOException;
import java.net.InetSocketAddress;
import java.net.SocketAddress;
import java.nio.ByteBuffer;
import java.nio.channels.SelectionKey;
import java.nio.channels.Selector;
import java.nio.channels.SocketChannel;
import java.nio.charset.Charset;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import java.sql.Timestamp;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Set;
import java.util.concurrent.BlockingQueue;
import java.util.concurrent.LinkedBlockingQueue;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
class Reactor implements Runnable {
public static int GETCOUNT() {
return COUNT.get();
}
public static int getQueueSize() {
return QUEUE.size();
}
private static final AtomicInteger COUNT = new AtomicInteger();
private static final AtomicInteger TASKCOUNT = new AtomicInteger();
public int startTask() {
return TASKCOUNT.incrementAndGet();
}
public int finishTask() {
return TASKCOUNT.decrementAndGet();
}
public int incrementAndGet() {
return COUNT.incrementAndGet();
}
public final Selector selector;
private static BlockingQueue QUEUE = new LinkedBlockingQueue();
public void addTask(Task task) {
try {
QUEUE.put(task);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
public Reactor() throws IOException {
selector = Selector.open();
}
@Override
public void run() {
try {
while (!Thread.interrupted()) {
int maxClient = 500;
Task task = null;
if (TASKCOUNT.get() < maxClient) {
while ((task = (Task) QUEUE.poll()) != null) {
new Connector(this, task).run();
if (TASKCOUNT.get() > maxClient) {
break;
}
}
}
selector.select();
Set selectionKeys = selector.selectedKeys();
Iterator it = selectionKeys.iterator();
// Selector如果发现channel有OP_ACCEPT或READ事件发生，下列遍历就会进行。
while (it.hasNext()) {
// 来一个事件第一次触发一个accepter线程
// 以后触发SocketReadHandler
SelectionKey selectionKey = it.next();
dispatch(selectionKey);
}
selectionKeys.clear();
}
} catch (IOException e) {
e.printStackTrace();
}
}
/**
* 运行Acceptor或SocketReadHandler
*
* @param key
*/
void dispatch(SelectionKey key) {
Runnable r = (Runnable) (key.attachment());
if (r != null) {
r.run();
}
}
}
class Connector implements Runnable {
private Reactor reactor;
private Task task;
public Connector(Reactor reactor, Task task) {
this.reactor = reactor;
this.task = task;
}
@Override
public void run() {
try {
reactor.startTask();
task.setStarttime(System.currentTimeMillis());
SocketAddress addr = new InetSocketAddress(task.getHost(), 80);
SocketChannel socketChannel = SocketChannel.open();
socketChannel.configureBlocking(false);
socketChannel.connect(addr);
BaseHandler base = new BaseHandler();
base.setTask(task);
base.setSelector(reactor.selector);
base.setSocketChannel(socketChannel);
base.setReactor(reactor);
if (socketChannel != null)// 调用Handler来处理channel
socketChannel.register(reactor.selector, SelectionKey.OP_CONNECT, new SocketWriteHandler(base));
} catch (IOException e) {
e.printStackTrace();
}
}
}
class BaseHandler {
private Selector selector;
private SocketChannel socketChannel;
private Task task;
private ByteBuffer byteBuffer = ByteBuffer.allocate(2400);
private Reactor reactor;
public Reactor getReactor() {
return reactor;
}
public void setReactor(Reactor reactor) {
this.reactor = reactor;
}
public Selector getSelector() {
return selector;
}
public void setSelector(Selector selector) {
this.selector = selector;
}
public SocketChannel getSocketChannel() {
return socketChannel;
}
public void setSocketChannel(SocketChannel socketChannel) {
this.socketChannel = socketChannel;
}
public Task getTask() {
return task;
}
public void setTask(Task task) {
this.task = task;
}
public ByteBuffer getByteBuffer() {
return byteBuffer;
}
}
class SocketWriteHandler implements Runnable {
BaseHandler baseHandler;
public SocketWriteHandler(BaseHandler baseHandler) {
this.baseHandler = baseHandler;
ByteBuffer byteBuffer = baseHandler.getByteBuffer();
Task task = baseHandler.getTask();
try {
byteBuffer.put(("GET " + task.getCurrentPath() + " HTTP/1.0\r\n").getBytes("utf8"));
byteBuffer.put(("HOST:" + task.getHost() + "\r\n").getBytes("utf8"));
byteBuffer.put(("Accept:*/*\r\n").getBytes("utf8"));
byteBuffer.put(("\r\n").getBytes("utf8"));
byteBuffer.flip();
} catch (IOException e) {
e.printStackTrace();
}
}
@Override
public void run() {
try {
while (!baseHandler.getSocketChannel().finishConnect()) {
System.out.println("Waiting Connected");
}
baseHandler.getSocketChannel().write(baseHandler.getByteBuffer());
if (baseHandler.getByteBuffer().hasRemaining()) {
baseHandler.getByteBuffer().compact();
baseHandler.getSocketChannel().register(baseHandler.getSelector(), SelectionKey.OP_WRITE, this);
System.out.println("Continue Write");
} else {
baseHandler.getSocketChannel().register(baseHandler.getSelector(), SelectionKey.OP_READ,
new SocketReadHandler(baseHandler));
baseHandler.getByteBuffer().clear();
}
} catch (IOException e) {
e.printStackTrace();
}
}
}
class SocketReadHandler implements Runnable {
Charset charset = Charset.forName("utf8");
Charset gbkcharset = Charset.forName("gbk");
BaseHandler baseHandler;
public SocketReadHandler(BaseHandler baseHandler) {
this.baseHandler = baseHandler;
}
@Override
public void run() {
try {
SocketChannel channel = baseHandler.getSocketChannel();
ByteBuffer byteBuffer = baseHandler.getByteBuffer();
Task task = baseHandler.getTask();
int length;
while ((length = channel.read(byteBuffer)) > 0) {
byteBuffer.flip();
task.getContent().append(charset.decode(charset.encode(gbkcharset.decode(byteBuffer))).toString());
byteBuffer.compact();
}
if (length == -1) {
channel.close();
task.setEndtime(System.currentTimeMillis());
baseHandler.getReactor().incrementAndGet();
baseHandler.getReactor().finishTask();
new ParseHandler(task, baseHandler.getReactor()).run();
} else {
baseHandler.getSocketChannel().register(baseHandler.getSelector(), SelectionKey.OP_READ, this);
}
} catch (IOException e) {
e.printStackTrace();
}
}
}
public class Probe {
public static void main(String[] args) throws IOException, InterruptedException {
for (int i = 0; i <2; i++) {
Reactor reactor = new Reactor();
reactor.addTask(new Task("news.163.com", 80, "/index.html"));
new Thread(reactor, "ReactorThread_" + i).start();
}
long start = System.currentTimeMillis();
while (true) {
Thread.sleep(1000);
long end = System.currentTimeMillis();
float interval = ((end - start) / 1000);
int connectTotal = Reactor.GETCOUNT();
int persistenceTotal = PersistenceHandler.GETCOUNT();
int connectps = Math.round(connectTotal / interval);
int persistenceps = Math.round(persistenceTotal / interval);
System.out.print("\r连接总数:" + connectTotal + " \t每秒连接:" + connectps + "\t连接队列剩余:" + Reactor.getQueueSize()
+ " \t持久化总数:" + persistenceTotal + " \t每秒持久化:" + persistenceps + "\t持久化队列剩余:"
+ PersistenceHandler.getInstance().getSize());
}
}
}
class Task {
private String host;
private int port;
private String currentPath;
private long starttime;
private long endtime;
private String type;
private StringBuilder content = new StringBuilder(2400);
private int state;
private boolean isValid = true;
public Task() {
}
public Task(String host, int port, String path) {
init(host, port, path);
}
public void init(String host, int port, String path) {
this.setCurrentPath(path);
this.host = host;
this.port = port;
}
public long getStarttime() {
return starttime;
}
public void setStarttime(long starttime) {
this.starttime = starttime;
}
public long getEndtime() {
return endtime;
}
public void setEndtime(long endtime) {
this.endtime = endtime;
}
public boolean isValid() {
return isValid;
}
public void setValid(boolean isValid) {
this.isValid = isValid;
}
public int getState() {
return state;
}
public void setState(int state) {
this.state = state;
}
public String getCurrentPath() {
return currentPath;
}
public void setCurrentPath(String currentPath) {
this.currentPath = currentPath;
int i = 0;
if (currentPath.indexOf("?") != -1) {
i = currentPath.indexOf("?");
} else {
if (currentPath.indexOf("#") != -1) {
i = currentPath.indexOf("#");
} else {
i = currentPath.length();
}
}
this.type = currentPath.substring(currentPath.indexOf(".") + 1, i);
}
public long getTaskTime() {
return getEndtime() - getStarttime();
}
public String getType() {
return type;
}
public void setType(String type) {
this.type = type;
}
public String getHost() {
return host;
}
public int getPort() {
return port;
}
public StringBuilder getContent() {
return content;
}
public void setContent(StringBuilder content) {
this.content = content;
}
}
class ParseHandler implements Runnable {
private static final Set SET = new HashSet();
PersistenceHandler persistencehandler = PersistenceHandler.getInstance();
List domainlist = new ArrayList();
Task task;
private interface Filter {
void doFilter(Task fatherTask, Task newTask, String path, Filter chain);
}
private class FilterChain implements Filter {
private List list = new ArrayList();
{
addFilter(new TwoLevel());
addFilter(new OneLevel());
addFilter(new FullPath());
addFilter(new Root());
addFilter(new Default());
}
private void addFilter(Filter filter) {
list.add(filter);
}
private Iterator it = list.iterator();
@Override
public void doFilter(Task fatherTask, Task newTask, String path, Filter chain) {
if (it.hasNext()) {
((Filter) it.next()).doFilter(fatherTask, newTask, path, chain);
}
}
}
private class TwoLevel implements Filter {
@Override
public void doFilter(Task fatherTask, Task newTask, String path, Filter chain) {
if (path.startsWith("../../")) {
String prefix = getPrefix(fatherTask.getCurrentPath(), 3);
newTask.init(fatherTask.getHost(), fatherTask.getPort(), path.replace("../../", prefix));
} else {
chain.doFilter(fatherTask, newTask, path, chain);
}
}
}
private class OneLevel implements Filter {
@Override
public void doFilter(Task fatherTask, Task newTask, String path, Filter chain) {
if (path.startsWith("../")) {
String prefix = getPrefix(fatherTask.getCurrentPath(), 2);
newTask.init(fatherTask.getHost(), fatherTask.getPort(), path.replace("../", prefix));
} else {
chain.doFilter(fatherTask, newTask, path, chain);
}
}
}
private class FullPath implements Filter {
@Override
public void doFilter(Task fatherTask, Task newTask, String path, Filter chain) {
if (path.startsWith("http://")) {
Iterator it = domainlist.iterator();
boolean flag = false;
while (it.hasNext()) {
网页标题：网页主动探测工具-使用Reactor模式
文章转载：http://cdweb.net/article/ipsjcp.html

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