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    athrunwang

    紀元
    數據加載中……

    HttpClient 對 cookie 的處理

    public static void main(String[] args) {
            HttpClient client = new HttpClient();
            NameValuePair[] nameValuePairs = {
                    new NameValuePair("username", "aaa"),
                    new NameValuePair("passwd", "123456")
            };
            PostMethod postMethod = new PostMethod("登錄url");
            postMethod.setRequestBody(nameValuePairs);
            int stats = 0;
            try {
                stats = client.executeMethod(postMethod);
            } catch (HttpException e) {
                e.printStackTrace();
            } catch (IOException e) {
                e.printStackTrace();
            }
            postMethod.releaseConnection();//這里最好把之前的資源放掉
            CookieSpec cookiespec = CookiePolicy.getDefaultSpec();
            Cookie[] cookies = cookiespec.match("域名", 80/*端口*/, "/" , false , client.getState().getCookies());
            for (Cookie cookie : cookies) {
                System.out.println(cookie.getName() + "##" + cookie.getValue());
            }
            
            HttpMethod method = null;
            String encode = "utf-8";//頁面編碼,按訪問頁面改動
            String referer = "http://域名";//http://www.163.com
            method = new GetMethod("url2");//后續操作
            method.getParams().setParameter("http.useragent","Mozilla/4.0 (compatible; MSIE 5.5; Windows 98)");
            method.setRequestHeader("Referer", referer);

            client.getParams().setContentCharset(encode);
            client.getParams().setSoTimeout(300000);
            client.getParams().setParameter(HttpMethodParams.RETRY_HANDLER, new DefaultHttpMethodRetryHandler(10, true));
     
            try {
                stats = client.executeMethod(method);
            } catch (HttpException e) {
                e.printStackTrace();
            } catch (IOException e) {
                e.printStackTrace();
            }
            if (stats == HttpStatus.SC_OK) {
                System.out.println("提交成功!");
                
            }
        }

    posted @ 2011-12-28 20:51 AthrunWang 閱讀(2398) | 評論 (0)編輯 收藏
    jdk7.0 新特性

         摘要: jdk7 增加了一個JLayer,用于在控件上方繪制一個新的圖層。當然jdk6里只要在paint里也能做到,不過新特性方便了很多,最少你可以方便的為Jdk代碼添加這些新特性。public class Diva { public static void main(String[] args) { javax.swing.SwingUtilities.invokeLater(new Run...  閱讀全文

    posted @ 2011-12-28 20:38 AthrunWang 閱讀(220) | 評論 (0)編輯 收藏
    canghailan 使用URLConnection下載文件

    package canghailan;

    import canghailan.util.StopWatch;

    import java.io.*;
    import java.net.URL;
    import java.net.URLConnection;
    import java.util.concurrent.Callable;
    import java.util.concurrent.ExecutionException;
    import java.util.concurrent.ExecutorService;
    import java.util.concurrent.Executors;

    /**
     * User: canghailan
     * Date: 11-12-9
     * Time: 下午2:03
     */
    public class Downloader implements Callable<File> {
        protected int connectTimeout = 30 * 1000; // 連接超時:30s
        protected int readTimeout = 1 * 1000 * 1000; // IO超時:1min

        protected int speedRefreshInterval = 500; // 即時速度刷新最小間隔:500ms

        protected byte[] buffer;

        private URL url;
        private File file;

        private float averageSpeed;
        private float currentSpeed;

        public Downloader() {
            buffer = new byte[8 * 1024]; // IO緩沖區:8KB
        }

        public void setUrlAndFile(URL url, File file) {
            this.url = url;
            this.file = autoRenameIfExist(file);
            this.averageSpeed = 0;
            this.currentSpeed = 0;
        }

        public URL getUrl() {
            return url;
        }

        public File getFile() {
            return file;
        }

        public float getAverageSpeed() {
            return averageSpeed;
        }

        public float getCurrentSpeed() {
            return currentSpeed;
        }

        @Override
        public File call() throws Exception {
            StopWatch watch = new StopWatch();
            watch.start();

            InputStream in = null;
            OutputStream out = null;
            try {
                URLConnection conn = url.openConnection();
                conn.setConnectTimeout(connectTimeout);
                conn.setReadTimeout(readTimeout);
                conn.connect();

                in = conn.getInputStream();
                out = new FileOutputStream(file);

                int time = 0;
                int bytesInTime = 0;
                for (; ; ) {
                    watch.split();
                    int bytes = in.read(buffer);
                    if (bytes == -1) {
                        break;
                    }
                    out.write(buffer, 0, bytes);

                    time += watch.getTimeFromSplit();
                    if (time >= speedRefreshInterval) {
                        currentSpeed = getSpeed(bytesInTime, time);
                        time = 0;
                        bytesInTime = 0;
                    }
                }
            } catch (IOException e) {
                file.delete();
                throw e;
            } finally {
                if (in != null) {
                    try {
                        in.close();
                    } catch (IOException e) {
                    }
                }
                if (out != null) {
                    try {
                        out.flush();
                        out.close();
                    } catch (IOException e) {
                    }
                }
            }

            watch.stop();
            averageSpeed = getSpeed(file.length(), watch.getTime());

            return file;
        }

        private static float getSpeed(long bytesInTime, long time) {
            return (float) bytesInTime / 1024 / ((float) time / 1000);
        }

        private static String getExtension(String string) {
            int lastDotIndex = string.lastIndexOf('.');
            // . ..
            if (lastDotIndex > 0) {
                return string.substring(lastDotIndex + 1);
            } else {
                return "";
            }
        }

        private static File autoRenameIfExist(File file) {
            if (file.exists()) {
                String path = file.getAbsolutePath();

                String extension = getExtension(path);
                int baseLength = path.length();
                if (extension.length() > 0) {
                    baseLength = path.length() - extension.length() - 1;
                }

                StringBuilder buffer = new StringBuilder(path);
                for (int index = 1; index < Integer.MAX_VALUE; ++index) {
                    buffer.setLength(baseLength);
                    buffer.append('(').append(index).append(')');
                    if (extension.length() > 0) {
                        buffer.append('.').append(extension);
                    }
                    file = new File(buffer.toString());
                    if (!file.exists()) {
                        break;
                    }
                }

            }
            return file;
        }

        public static void main(String[] args) throws IOException, ExecutionException, InterruptedException {
            URL url = new URL("http://www.google.com.hk/");
            File file = new File("/home/canghailan/google.html");

            ExecutorService executorService = Executors.newSingleThreadExecutor();
            Downloader downloader = new Downloader();
            downloader.setUrlAndFile(url, file);
            File downloadFIle = executorService.submit(downloader).get();
            System.out.println("download " + downloadFIle.getName() +
                    " from " + url +
                    " @" + downloader.getAverageSpeed() + "KB/s");
        }
    }
    package canghailan.util;

    import java.util.concurrent.TimeUnit;

    /**
     * User: canghailan
     * Date: 11-12-9
     * Time: 下午3:45
     * <pre>
     * RUNNING:
     * startTime              split                        now
     * |<-   getSplitTime()   ->|<-   getTimeFromSplit()   ->|
     * |<-                   getTime()                     ->|
     * <pre/>
     * <pre>
     * STOPPED:
     * startTime                           stop            now
     * |<-           getTime()            ->|
     * <pre/>
     */
    public class StopWatch {
        private long startTime;
        private long stopTime;

        private State state;
        private boolean split;

        public StopWatch() {
            reset();
        }

        public void start() {
            if (state == State.UNSTARTED) {
                startTime = System.nanoTime();
                state = State.RUNNING;
                return;
            }
            throw new RuntimeException("Stopwatch already started or stopped.");
        }

        public void stop() {
            switch (state) {
                case RUNNING: {
                    stopTime = System.nanoTime();
                }
                case SUSPENDED: {
                    state = State.STOPPED;
                    split = false;
                    return;

                }
            }
            throw new RuntimeException("Stopwatch is not running.");
        }

        public void reset() {
            state = State.UNSTARTED;
            split = false;
        }

        public void split() {
            if (state == State.RUNNING) {
                stopTime = System.nanoTime();
                split = true;
                return;
            }
            throw new RuntimeException("Stopwatch is not running.");
        }

        public void suspend() {
            if (state == State.RUNNING) {
                stopTime = System.nanoTime();
                state = State.SUSPENDED;
                return;
            }
            throw new RuntimeException("Stopwatch must be running to suspend.");
        }

        public void resume() {
            if (state == State.SUSPENDED) {
                startTime += System.nanoTime() - stopTime;
                state = State.RUNNING;
                return;
            }
            throw new RuntimeException("Stopwatch must be suspended to resume.");
        }

        public long getTime() {
            return TimeUnit.NANOSECONDS.toMillis(getNanoTime());
        }

        public long getNanoTime() {
            switch (state) {
                case RUNNING: {
                    return System.nanoTime() - startTime;
                }
                case STOPPED:
                case SUSPENDED: {
                    return stopTime - startTime;
                }
                case UNSTARTED: {
                    return 0;
                }
            }
            throw new RuntimeException("Should never get here.");
        }

        public long getSplitTime() {
            return TimeUnit.NANOSECONDS.toMillis(getSplitNanoTime());
        }


        public long getSplitNanoTime() {
            if (split) {
                return stopTime - startTime;
            }
            throw new RuntimeException("Stopwatch must be running and split to get the split time.");
        }

        public long getTimeFromSplit() {
            return TimeUnit.NANOSECONDS.toMillis(getNanoTimeFromSplit());
        }

        public long getNanoTimeFromSplit() {
            if (state == State.RUNNING && split) {
                return System.nanoTime() - stopTime;
            }
            throw new RuntimeException("Stopwatch must be running and split to get the time from split.");
        }

        enum State {
            UNSTARTED,
            RUNNING,
            STOPPED,
            SUSPENDED
        }

    }

    posted @ 2011-12-28 20:07 AthrunWang 閱讀(448) | 評論 (0)編輯 收藏
    java操作excel 插入 讀取 備注 需要smartxls jar包

    import com.smartxls.CommentShape;
    import com.smartxls.WorkBook;

    public class CommentReadSample
    {

        public static void main(String args[])
        {

            WorkBook workBook = new WorkBook();
            try
            {
                workBook.read("..\\template\\book.xls");

                // get the first index from the current sheet
                CommentShape commentShape = workBook.getComment(1, 1);
                if(commentShape != null)
                {
                    System.out.println("comment text:" + commentShape.getText());
                    System.out.println("comment author:" + commentShape.getAuthor());
                }
            }
            catch (Exception e)
            {
                e.printStackTrace();
            }
        }
    }

    import com.smartxls.WorkBook;

    public class CommentWriteSample
    {

        public static void main(String args[])
        {
            WorkBook workBook = new WorkBook();
            try
            {
                //add a comment to B2
                workBook.addComment(1, 1, "comment text here!", "author name here!");

                workBook.write(".\\comment.xls");
            }
            catch (Exception e)
            {
                e.printStackTrace();
            }
        }
    }

    posted @ 2011-12-28 19:01 AthrunWang 閱讀(717) | 評論 (0)編輯 收藏
    java操作excel 插入 讀取 超鏈接

    import com.smartxls.HyperLink;
    import com.smartxls.WorkBook;

    public class HyperlinkReadSample
    {

        public static void main(String args[])
        {

            WorkBook workBook = new WorkBook();
            String version = workBook.getVersionString();
            System.out.println("Ver:" + version);
            try
            {
                workBook.read("..\\template\\book.xls");

                // get the first index from the current sheet
                HyperLink hyperLink = workBook.getHyperlink(0);
                if(hyperLink != null)
                {
                    System.out.println(hyperLink.getType());
                    System.out.println(hyperLink.getLinkURLString());
                    System.out.println(hyperLink.getLinkShowString());
                    System.out.println(hyperLink.getToolTipString());
                    System.out.println(hyperLink.getRange());
                }
            }
            catch (Exception e)
            {
                e.printStackTrace();
            }
        }
    }

    import com.smartxls.HyperLink;
    import com.smartxls.WorkBook;

    public class HyperlinkWriteSample
    {

        public static void main(String args[])
        {
            WorkBook workBook = new WorkBook();
            try
            {
                //add a url link to F6
                workBook.addHyperlink(5,5,5,5,"http://www.smartxls.com/", HyperLink.kURLAbs,"Hello,web url hyperlink!");

                //add a file link to F7
                workBook.addHyperlink(6,5,6,5,"c:\\",HyperLink.kFileAbs,"file link");

                workBook.write(".\\link.xls");
            }
            catch (Exception e)
            {
                e.printStackTrace();
            }
        }
    }

    posted @ 2011-12-28 19:00 AthrunWang 閱讀(954) | 評論 (0)編輯 收藏
    快慢機 java操作excel插入圖片

    import com.smartxls.WorkBook;

    import java.io.FileOutputStream;

    public class ReadImageSample
    {

        public static void main(String args[])
        {
            try
            {
                WorkBook workBook = new WorkBook();

                //open the workbook
                workBook.read("..\\template\\book.xls");

                String filename = "img";
                int type = workBook.getPictureType(0);
                if(type == -1)
                    filename += ".gif";
                else if(type == 5)
                    filename += ".jpg";
                else if(type == 6)
                    filename += ".png";
                else if(type == 7)
                    filename += ".bmp";

                byte[] imagedata = workBook.getPictureData(0);
                
                FileOutputStream fos = new FileOutputStream(filename);
                fos.write(imagedata);
                fos.close();
            }
            catch (Exception e)
            {
                e.printStackTrace();
            }
        }
    }


















    import com.smartxls.PictureShape;
    import com.smartxls.ShapeFormat;
    import com.smartxls.WorkBook;

    public class WriteImagesSample
    {

        public static void main(String args[])
        {
            try
            {
                WorkBook workBook = new WorkBook();

                //Inserting image
                PictureShape pictureShape = workBook.addPicture(1, 0, 3, 8, "..\\template\\MS.GIF");
                ShapeFormat shapeFormat = pictureShape.getFormat();
                shapeFormat.setPlacementStyle(ShapeFormat.PlacementFreeFloating);
                pictureShape.setFormat();

                workBook.write(".\\pic.xls");
            }
            catch (Exception e)
            {
                e.printStackTrace();
            }
        }
    }

    posted @ 2011-12-28 19:00 AthrunWang 閱讀(219) | 評論 (0)編輯 收藏
    http短信接口

         摘要: [代碼] [Java]代碼view sourceprint?01package com.sun.duanxin;02import java.io.BufferedReader;03import java.io.IOException;04import java.io.InputStreamReader;05import java.io.U...  閱讀全文

    posted @ 2011-12-26 22:22 AthrunWang 閱讀(214) | 評論 (0)編輯 收藏
    java版的漢字轉拼音程序

         摘要: [文件] ChiToLetter.javaimport java.io.UnsupportedEncodingException;import java.util.HashSet;import java.util.Iterator;import java.util.Set;import java.util.Vector;//實現漢字向拼音的轉化//--------------------...  閱讀全文

    posted @ 2011-12-26 22:17 AthrunWang 閱讀(524) | 評論 (1)編輯 收藏
    Java 生成視頻縮略圖(ffmpeg)

         摘要: [代碼] Java 生成視頻縮略圖(ffmpeg)view sourceprint?01首先下載ffmpeg解壓02 03建立一個bat文件04 05start06 07E:/ffmpeg/bin/ffmpeg.exe -i %1 -ss 20 -vframes 1 -r 1 -ac&nb...  閱讀全文

    posted @ 2011-12-26 22:15 AthrunWang 閱讀(2971) | 評論 (1)編輯 收藏
    主題:Apache與Tomcat搭建集群

         摘要:  早前就解了Apache和Tomcat可以搭建集群,可以負載均衡,升級就不需要停交易,真是強大。昨晚看了google reader的收藏又再次看到這篇文章,于是今天在星巴克研究了一把,發現真的很強大,負載均衡、session復制都可以做到,以后再也不用為升級系統而煩惱了。        下面就來講講是搭建集群的過程,首...  閱讀全文

    posted @ 2011-12-26 22:07 AthrunWang 閱讀(315) | 評論 (0)編輯 收藏
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