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