安装了color highlighter插件，没有反应，求解

 如图，安装了colorhighlighter一点反应都没有。 都设置过tool-> colorhighter里面的选项了。 看过官网，百度过，都没有解决方案。

<div class="post-text" itemprop="text"> <p>Hi everyone i am using Sublime Text 3.<br>I have search a lot for php live or Run time error highlighter when i am typing my php on sublime just like in Dreamweaver it highlights the line where the error is but i did not find anything.all i get is sublimelinter i have installed it but it did not work for me.Also i have check php syntax checker but it is to old only used for sublime text 2. <br> can anyone suggest me where i download it or install it using my package control it will be really helpful...</p> </div>

有一个内容较多的txt，当搜索的关键词在txt前面一些，highlighter.getBestFragment(analyzer, "content", document.get("content"));就可以取得内容，但是当搜索的关键词在txt中的位置在后面时，此时highlighter.getBestFragment(analyzer, "content", document.get("content"));的内容就为空了，这是什么原因呢，还有不管highlighter.getBestFragment(analyzer, "content", document.get("content"));是不是为空，显示结果都是查询到了数据，就是提取关键词附近的段落有问题。

有一个内容较多的txt，当搜索的关键词在txt前面一些，highlighter.getBestFragment(analyzer, "content", document.get("content"));就可以取得内容，但是当搜索的关键词在txt中的位置在后面时，此时highlighter.getBestFragment(analyzer, "content", document.get("content"));的内容就为空了，这是什么原因呢，还有不管highlighter.getBestFragment(analyzer, "content", document.get("content"));是不是为空，显示结果都是查询到了数据，就是提取关键词附近的段落有问题。

用下面的代码设置查询结果高亮显示，可结果`<font color='red'>`, `</font>`都给加到text的最前面了，就比如说我对“我爱中国”里的“中国”进行查询，返回的text是“`<font color='red'></font>`我爱中国”，为什么呢 代码如下 String text = doc.get(fields[2]); SimpleHTMLFormatter simpleHTMLFormatter = new SimpleHTMLFormatter("<font color='red'>", "</font>"); Highlighter highlighter = new Highlighter(simpleHTMLFormatter,new QueryScorer(query1)); highlighter.setTextFragmenter(new SimpleFragmenter(text.length())); TokenStream tokenStream = luceneAnalyzer.tokenStream("", new StringReader(text)); String highLightText = highlighter.getBestFragment(tokenStream, text);

<div class="post-text" itemprop="text"> <p>I am using a simple implementation of Syntax Highlighter for a blog written in CodeIgniter. Here is the link <a href="http://code.angad.sg/index.php/blog/test" rel="nofollow noreferrer">http://code.angad.sg/index.php/blog/test</a></p> <p>Not sure why is this happening. I am not pasting the source code for the file; you can do a Ctrl+U on the link.</p> <p>Thanks :)</p> </div>

【背景】 用户要求输入文章的完整标题也能将该文章完整检索下来，如“商海里穿梭的鱼：偷懒的6条原则”。 【我的想法】 在设计时多加一个字段用于对文章的标题不分词直接索引，这样就能实现用户要求的功能。但由于要结合Highlighter将用户输入的短语用标签对<font></font>高亮显示，而Highlighter的getBestFragment()方法又必须要使用分词器或Token进行分词，这样把标题分词后就导致无法对整个文章标题加高亮了。 对于这个问题，虽然可以在做页面时给完整的文章标题可以手工添加高亮标签对<font></font>，但这样会带来一些麻烦，如代码变得很不协调，更糟糕的是可能会出现这样的情况：用户选择以文章的完整标题作为输入，且标题是“暧昧”，而“暧昧”本身就是一个分词单元，这样就会产生<font color='red'><font color='red'>暧昧</fong></font>的标签对嵌套（内层标签对是高亮器自动添加的，外层的则是在页面输出时手工添加的）。 请问对于这个问题，有什么比较好的解决方法呢？

** 问题描述：** 项目是前后端分离，后端Java开发，前端纯HTML显示，查询出结果返回给前端后，前端还是原文输出 ** 前端结果：**  ** 后端部分代码** /** * 设置关键字高亮 * @param query 查询对象 * @param list 设置高亮的内容列表 * @param fields 字段名 */ public List<T> keyWordsHighLight(BooleanQuery query, List<T> list, String... fields){ Analyzer analyzer = new IKAnalyzer(); /**自定义标注高亮文本标签*/ SimpleHTMLFormatter formatter = new SimpleHTMLFormatter("<font color='red'>","</font>"); Highlighter highlighter = new Highlighter(formatter, new QueryScorer(query)); highlighter.setTextFragmenter(new SimpleFragmenter(130)); for(T entity : list){ try { for (String field : fields){ if(ObjectUtil.isNotEmpty(field) && !"tag".equals(field)){ String text = ObjectUtil.replaceHtml((String)Reflections.invokeGetter(entity, field)); String desciption = highlighter.getBestFragment(analyzer,field,text); if(desciption!=null){ Reflections.invokeSetter(entity, fields[0], desciption); break; } Reflections.invokeSetter(entity, fields[0], ObjectUtil.abbr(text, 130)); } } } catch (IOException e) { e.printStackTrace(); } catch (InvalidTokenOffsetsException e) { e.printStackTrace(); } } return list; }

兄弟们 我用lucene 做全文检索 ，要用到高亮，没想到Highlighter 包这么难找，请各位帮我找找 ？老弟感激不尽

highlighter.setTextFragmenter(new SimpleFragmenter(15));//高亮词前后15 个字？

<div class="post-text" itemprop="text"> <p>I have a text (<code>$text</code>) and an array of words (<code>$tags</code>). These words in the text should be replaced with links to other pages so they don't break the existing links in the text. In CakePHP there is a method in TextHelper for doing this but it is corrupted and it breaks the existing HTML links in the text. The method suppose to work like this:</p> <pre><code>$text=Text-&gt;highlight($text,$tags,'&lt;a href="/tags/\1"&gt;\1&lt;/a&gt;',1); </code></pre> <p>Below there is existing code in CakePHP TextHelper:</p> <pre><code>function highlight($text, $phrase, $highlighter = '&lt;span class="highlight"&gt;\1&lt;/span&gt;', $considerHtml = false) { if (empty($phrase)) { return $text; } if (is_array($phrase)) { $replace = array(); $with = array(); foreach ($phrase as $key =&gt; $value) { $key = $value; $value = $highlighter; $key = '(' . $key . ')'; if ($considerHtml) { $key = '(?![^&lt;]+&gt;)' . $key . '(?![^&lt;]+&gt;)'; } $replace[] = '|' . $key . '|ix'; $with[] = empty($value) ? $highlighter : $value; } return preg_replace($replace, $with, $text); } else { $phrase = '(' . $phrase . ')'; if ($considerHtml) { $phrase = '(?![^&lt;]+&gt;)' . $phrase . '(?![^&lt;]+&gt;)'; } return preg_replace('|'.$phrase.'|i', $highlighter, $text); } } </code></pre> </div>

     ``` #include "mainwindow.h" #include "ui_mainwindow.h" #include <QTextFrame> #include <QDebug> #include <QLineEdit> #include <QDialog> #include <QPushButton> #include <QVBoxLayout> #include "mysyntaxhighlighter.h" MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent), ui(new Ui::MainWindow) { ui->setupUi(this); QTextDocument *document=ui->textEdit->document(); QTextFrame *rootFrame=document->rootFrame(); QTextFrameFormat format; format.setBackground(Qt::blue); format.setBorderBrush(Qt::red); format.setBorder(3); rootFrame->setFrameFormat(format); QTextFrameFormat frameFormat; frameFormat.setBackground(Qt::lightGray); frameFormat.setMargin(20); frameFormat.setPadding(50); frameFormat.setBorder(6); frameFormat.setBorderStyle(QTextFrameFormat::BorderStyle_Dotted); QTextCursor cursor=ui->textEdit->textCursor(); cursor.insertFrame(frameFormat); QAction *action_textFrame=new QAction(tr("框架"),this); connect(action_textFrame,SIGNAL(triggered()),this,SLOT(showTextFrame())); ui->mainToolBar->addAction(action_textFrame); QAction *action_textBlock=new QAction(tr("文本块"),this); connect(action_textBlock,SIGNAL(triggered()),this,SLOT(showTextBlock())); ui->mainToolBar->addAction(action_textBlock); QAction *action_font=new QAction(tr("字体"),this); action_font->setCheckable(true); connect(action_font,SIGNAL(toggled(bool)),this,SLOT(setTextFont(bool))); ui->mainToolBar->addAction(action_font); QAction *action_textFind=new QAction(tr("查找"),this); connect(action_textFind,SIGNAL(triggered()),this,SLOT(textFind())); ui->mainToolBar->addAction(action_textFind); highlighter=new MySyntaxHighlighter(ui->textEdit->document()); } void MainWindow::showTextFrame() { QTextDocument *document=ui->textEdit->document(); QTextFrame *frame=document->rootFrame(); QTextFrame::iterator it; for(it=frame->begin();it.atEnd()==0;++it) { QTextFrame *childFrame=it.currentFrame(); QTextBlock childBlock=it.currentBlock(); if(childFrame) qDebug()<<"frame"; else if(childBlock.isValid()) qDebug()<<"block:"<<childBlock.text(); } } void MainWindow::showTextBlock() { QTextDocument *document=ui->textEdit->document(); QTextBlock block=document->firstBlock(); qDebug()<<document->blockCount(); for(int i=0;i<document->blockCount();i++) { qDebug() <<tr("文本块%1,文本块首行行号为:%2,长度为:%3,内容为:").arg(i).arg(block.firstLineNumber()).arg(block.length()) <<block.text(); block=block.next(); } } void MainWindow::setTextFont(bool checked) { if(checked) { QTextCursor cursor=ui->textEdit->textCursor(); QTextBlockFormat blockFormat; blockFormat.setAlignment(Qt::AlignCenter); cursor.insertBlock(blockFormat); QTextCharFormat charFormat; charFormat.setBackground(Qt::lightGray); charFormat.setForeground(Qt::blue); charFormat.setFont(QFont(tr("宋体"),12,QFont::Bold,true)); charFormat.setFontUnderline(true); cursor.setCharFormat(charFormat); cursor.insertText(tr("测试字体")); } } void MainWindow::textFind() { QDialog *dlg=new QDialog(this); lineEdit=new QLineEdit(dlg); QPushButton *btn=new QPushButton(dlg); btn->setText(tr("查找下一个")); connect(btn,SIGNAL(clicked(bool)),this,SLOT(findNext())); QVBoxLayout *layout=new QVBoxLayout; layout->addWidget(lineEdit); layout->addWidget(btn); dlg->setLayout(layout); dlg->show(); } void MainWindow::findNext() { QString string=lineEdit->text(); bool isfind=ui->textEdit->find(string,QTextDocument::FindBackward); if(isfind) { qDebug()<<tr("行号:%1列号:%2").arg(ui->textEdit->textCursor().blockNumber()). arg(ui->textEdit->textCursor().columnNumber()); } } MainWindow::~MainWindow() { delete ui; } ```

<div class="post-text" itemprop="text"> <p>I am storing my new Lua code in to a Dokuwiki system which uses the geshi highlighter (written in php). How ever I am having a problem with long string definitions in lua for example</p> <pre><code>strLong = [[If this is a long string then I don't want it highlighted as code else it looks very silly]] </code></pre> <p>It is possible to correct this using the geshi lua.php file, I have already taken a quick look at the documentation at <a href="http://qbnz.com/highlighter/geshi-doc.html" rel="nofollow noreferrer">http://qbnz.com/highlighter/geshi-doc.html</a> and multiline comments are working fine it's just multiline strings which are not.</p> </div>

<pre name="code" class="java">import org.apache.lucene.analysis.Analyzer; <span style="color: #000000;">import org.apache.lucene.document.Document;</span> <span style="color: #ff0000;"><span style="text-decoration: underline;">import org.apache.lucene.search.highlight.Highlighter;</span></span> 报红线的是缺少哪个jar包？ </pre> <p> </p>

<div class="post-text" itemprop="text"> <p>I was trying use command <code>composer create-project laravel/laravel Laravel</code>, to create a new laravel project.</p> <p>But I got this in the terminal:</p> <pre><code>Failed to download jakub-onderka/php-console-color from dist: The "https://api.github.com/repos/JakubOnderka/PHP-Console-Color/zipball/e0b393dacf7703fc36a4efc3df1435485197e6c1" file could not be downloaded: failed to open stream: Connection timed out Now trying to download from source </code></pre> <p>Then, I tried this command:</p> <pre><code>curl https://api.github.com/repos/JakubOnderka/PHP-Console-Color/zipball/e0b393dacf7703fc36a4efc3df1435485197e6c1 </code></pre> <p>It cannot work.</p> <p>However, when I entered the address in the browser(FireFox), It works!</p> <p>What's wrong with that? Have suffered from this couple of days.</p> </div>

<p>在看zwchen很久之前的一篇博客，地址如下<br><br>http://zwchen.iteye.com/blog/91088<br><br>做了个测试，按照第一种做法</p> <p> </p> <p>为使用synchronized，<span style="color: #ff0000;"><strong>并未出现 线程共享情况</strong></span>，（我使用的是tomcat6.0带的servlet包）数据都是</p> <p> </p> <p>SimpleServlet@c4fe76 ==&gt; Thread[http-8080-1,5,main]: <br>Counter = 60<br>Counter = 61<br>Counter = 62<br>Counter = 63<br>Counter = 64<br>Counter = 65<br>Counter = 66<br>Counter = 67<br>Counter = 68<br>Counter = 69</p> <p> </p> <p><span style="font-family: Simsun; font-size: small;">SimpleServlet@c4fe76 ==&gt; Thread[http-8080-1,5,main]: <br>Counter = 70<br>Counter = 71<br>Counter = 72<br>Counter = 73<br>Counter = 74<br>Counter = 75<br>Counter = 76<br>Counter = 77<br>Counter = 78<br>Counter = 79</span></p> <p> </p> <p>SimpleServlet@c4fe76 ==&gt; Thread[http-8080-1,5,main]: <br>Counter = 80<br>Counter = 81<br>Counter = 82<br>Counter = 83<br>Counter = 84<br>Counter = 85<br>Counter = 86<br>Counter = 87<br>Counter = 88<br>Counter = 89</p> <p> </p> <p>正常输出。 请问各位高手，这个是为什么？？</p> <p> </p> <p> </p> <p><span style="color: #ff0000;"><strong>还有，其中的</strong></span></p> <p><span style="font-family: Monaco, 'DejaVu Sans Mono', 'Bitstream Vera Sans Mono', Consolas, 'Courier New', monospace; line-height: 18px; background-color: #fafafa;"><span style="color: #ff0000;"><strong><span class="keyword" style="color: #7f0055; font-weight: bold;">synchronized</span><span style="color: black;"> (mutex)  为什么要用mutex这个参数？</span></strong></span></span></p> <p> </p> <p>我认为<span style="color: #7f0055; font-family: Monaco, 'DejaVu Sans Mono', 'Bitstream Vera Sans Mono', Consolas, 'Courier New', monospace; font-weight: bold; line-height: 18px; background-color: #fafafa;">synchronized的参数是表明同步的是哪块，所以我</span>改成  我自己servlet中的req，也可以正常跑</p> <p> </p> <p>public void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException</p> <p>       {</p> <p> </p> <p>  <span style="font-family: Monaco, 'DejaVu Sans Mono', 'Bitstream Vera Sans Mono', Consolas, 'Courier New', monospace; line-height: 18px; background-color: #fafafa;"><span class="keyword" style="color: #7f0055; font-weight: bold;">synchronized</span><span style="color: black;"> </span><span style="color: black;">(req) </span></span></p> <p> </p> <p> </p> <p><span style="color: #ff0000;"><strong>另外 ，最关键的：Thread.sleep((long) Math.random() * 1000);</strong></span></p> <p><span style="color: #ff0000;"><strong>我改成Thread.sleep(1000);，输出的结果就好像是线程共享了？？</strong></span></p> <p> </p> <p> </p> <p> </p> <p>SimpleServlet@64883c ==&gt; Thread[http-8080-3,5,main]: <br>Counter = 4<br>Counter = 6<br>Counter = 10<br>Counter = 14<br>Counter = 18<br>Counter = 22<br>Counter = 26<br>Counter = 30<br>Counter = 34<br>Counter = 38</p> <p> </p> <p> </p> <p>SimpleServlet@64883c ==&gt; Thread[http-8080-6,5,main]: <br>Counter = 4<br>Counter = 7<br>Counter = 11<br>Counter = 15<br>Counter = 19<br>Counter = 23<br>Counter = 27<br>Counter = 31<br>Counter = 35<br>Counter = 39</p> <p> </p> <p>SimpleServlet@64883c ==&gt; Thread[http-8080-7,5,main]: <br>Counter = 4<br>Counter = 8<br>Counter = 12<br>Counter = 16<br>Counter = 20<br>Counter = 24<br>Counter = 28<br>Counter = 32<br>Counter = 36<br>Counter = 40</p> <p> </p> <p> </p> <p>下面附上  ZWCHEN先生的原文，并对他表示深深的敬意，谢谢！</p> <p><span style="font-family: Helvetica, Tahoma, Arial, sans-serif; font-size: 14px; line-height: 25px;"> </span></p> <div class="dp-highlighter" style="font-family: Monaco, 'DejaVu Sans Mono', 'Bitstream Vera Sans Mono', Consolas, 'Courier New', monospace; font-size: 12px; background-color: transparent; width: 694px; margin-left: 9px; padding: 1px;"> <div class="bar"> <div class="tools" style="text-align: left; color: black; font-weight: bold; padding: 3px; margin: 0px;">Java代码  <object classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,40,0" width="14" height="15"> <param name="src"> <embed type="application/x-shockwave-flash" width="14" height="15" src="http://zwchen.iteye.com/javascripts/syntaxhighlighter/clipboard_new.swf"></embed></object>  <a style="color: #108ac6; text-decoration: underline;" title="收藏这段代码" href="http://zwchen.iteye.com/blog/91088"><img class="star" style="border-color: initial;" src="http://zwchen.iteye.com/images/icon_star.png" alt="收藏代码"></a> </div> </div> <ol class="dp-j" style="font-size: 1em; line-height: 1.4em; margin-top: 0px; margin-right: 0px; margin-bottom: 1px; margin-left: 0px; padding-top: 2px; padding-right: 0px; padding-bottom: 2px; padding-left: 0px; background-color: #ffffff; color: #2b91af; border: 1px solid #d1d7dc;"> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;"><span class="keyword" style="color: #7f0055; font-weight: bold;">public</span><span style="color: black;"> </span><span class="keyword" style="color: #7f0055; font-weight: bold;">class</span><span style="color: black;"> SimpleServlet </span><span class="keyword" style="color: #7f0055; font-weight: bold;">extends</span><span style="color: black;"> HttpServlet  </span></span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">  </span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">{  </span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">       <span class="comment" style="color: #008200;">// A variable that is NOT thread-safe!</span><span style="color: black;">  </span></span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">       <span class="keyword" style="color: #7f0055; font-weight: bold;">private</span><span style="color: black;"> </span><span class="keyword" style="color: #7f0055; font-weight: bold;">int</span><span style="color: black;"> counter = </span><span class="number" style="color: #c00000;">0</span><span style="color: black;">;  </span></span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">       <span class="keyword" style="color: #7f0055; font-weight: bold;">public</span><span style="color: black;"> </span><span class="keyword" style="color: #7f0055; font-weight: bold;">void</span><span style="color: black;"> doGet(HttpServletRequest req, HttpServletResponse resp) </span><span class="keyword" style="color: #7f0055; font-weight: bold;">throws</span><span style="color: black;"> ServletException, IOException  </span></span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">       {  </span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">              doPost(req, resp);  </span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">       }  </span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">  </span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">       <span class="keyword" style="color: #7f0055; font-weight: bold;">public</span><span style="color: black;"> </span><span class="keyword" style="color: #7f0055; font-weight: bold;">void</span><span style="color: black;"> doPost(HttpServletRequest req, HttpServletResponse resp) </span><span class="keyword" style="color: #7f0055; font-weight: bold;">throws</span><span style="color: black;"> ServletException, IOException  </span></span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">       {  </span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">              resp.getWriter().println(<span class="string" style="color: blue;">"&lt;HTML&gt;&lt;BODY&gt;"</span><span style="color: black;">);  </span></span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">  </span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">              resp.getWriter().println(<span class="keyword" style="color: #7f0055; font-weight: bold;">this</span><span style="color: black;"> + </span><span class="string" style="color: blue;">" ==&gt; "</span><span style="color: black;">);  </span></span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">  </span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">              resp.getWriter().println(Thread.currentThread() + <span class="string" style="color: blue;">": &lt;br&gt;"</span><span style="color: black;">);  </span></span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">              <span class="keyword" style="color: #7f0055; font-weight: bold;">for</span><span style="color: black;"> (</span><span class="keyword" style="color: #7f0055; font-weight: bold;">int</span><span style="color: black;"> c = </span><span class="number" style="color: #c00000;">0</span><span style="color: black;">; c &lt; </span><span class="number" style="color: #c00000;">10</span><span style="color: black;">; c++)  </span></span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">              {  </span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">                     resp.getWriter().println(<span class="string" style="color: blue;">"Counter = "</span><span style="color: black;"> + counter + </span><span class="string" style="color: blue;">"&lt;BR&gt;"</span><span style="color: black;">);  </span></span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">                     <span class="keyword" style="color: #7f0055; font-weight: bold;">try</span><span style="color: black;">  </span></span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">                     {  </span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">                            Thread.sleep((<span class="keyword" style="color: #7f0055; font-weight: bold;">long</span><span style="color: black;">) Math.random() * </span><span class="number" style="color: #c00000;">1000</span><span style="color: black;">);  </span></span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">                            counter++;  </span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">                     }  </span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">                     <span class="keyword" style="color: #7f0055; font-weight: bold;">catch</span><span style="color: black;"> (InterruptedException exc)  </span></span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">                     {  </span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">                     }  </span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">              }  </span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">              resp.getWriter().println(<span class="string" style="color: blue;">"&lt;/BODY&gt;&lt;/HTML&gt;"</span><span style="color: black;">);  </span></span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">       }  </span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">}  </span></li> </ol> </div> <p> <br><br>然后，我们通过一个html页面向该servlet发出三次请求： <br></p> <div class="dp-highlighter" style="font-family: Monaco, 'DejaVu Sans Mono', 'Bitstream Vera Sans Mono', Consolas, 'Courier New', monospace; font-size: 12px; background-color: transparent; width: 694px; margin-left: 9px; padding: 1px;"> <div class="bar"> <div class="tools" style="text-align: left; color: black; font-weight: bold; padding: 3px; margin: 0px;">Java代码  <object classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,40,0" width="14" height="15"> <param name="src"> <embed type="application/x-shockwave-flash" width="14" height="15" src="http://zwchen.iteye.com/javascripts/syntaxhighlighter/clipboard_new.swf"></embed></object>  <a style="color: #108ac6; text-decoration: underline;" title="收藏这段代码" href="http://zwchen.iteye.com/blog/91088"><img class="star" style="border-color: initial;" src="http://zwchen.iteye.com/images/icon_star.png" alt="收藏代码"></a> </div> </div> <ol class="dp-j" style="font-size: 1em; line-height: 1.4em; margin-top: 0px; margin-right: 0px; margin-bottom: 1px; margin-left: 0px; padding-top: 2px; padding-right: 0px; padding-bottom: 2px; padding-left: 0px; background-color: #ffffff; color: #2b91af; border: 1px solid #d1d7dc;"> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;"><span style="color: black;">&lt;HTML&gt;  </span></span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">  </span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">&lt;BODY&gt;  </span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">  </span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">&lt;TABLE&gt;  </span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">    &lt;TR&gt;  </span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">        &lt;TD&gt;&lt;IFRAME src=<span class="string" style="color: blue;">"./SimpleServlet"</span><span style="color: black;"> name=</span><span class="string" style="color: blue;">"servlet1"</span><span style="color: black;"> height=</span><span class="string" style="color: blue;">"200%"</span><span style="color: black;">&gt; &lt;/IFRAME&gt;&lt;/TD&gt;  </span></span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">    &lt;/TR&gt;  </span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">    &lt;TR&gt;  </span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">        &lt;TD&gt;&lt;IFRAME src=<span class="string" style="color: blue;">"./SimpleServlet"</span><span style="color: black;"> name=</span><span class="string" style="color: blue;">"servlet2"</span><span style="color: black;"> height=</span><span class="string" style="color: blue;">"200%"</span><span style="color: black;">&gt; &lt;/IFRAME&gt;&lt;/TD&gt;  </span></span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">    &lt;/TR&gt;  </span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">    &lt;TR&gt;  </span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">        &lt;TD&gt;&lt;IFRAME src=<span class="string" style="color: blue;">"./SimpleServlet"</span><span style="color: black;"> name=</span><span class="string" style="color: blue;">"servlet3"</span><span style="color: black;"> height=</span><span class="string" style="color: blue;">"200%"</span><span style="color: black;">&gt; &lt;/IFRAME&gt;&lt;/TD&gt;  </span></span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">    &lt;/TR&gt;  </span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">&lt;/TABLE&gt;  </span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">&lt;/BODY&gt;  </span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">&lt;/HTML&gt;  </span></li> </ol> </div> <p> <br><br><br><br>刷新页面几次后，产生的结果为： <br><br>com.zwchen.servlet.SimpleServlet@11e1bbf ==&gt; Thread[http-8081-Processor23,5,main]: <br>Counter = 60 <br>Counter = 61 <br>Counter = 62 <br>Counter = 65 <br>Counter = 68 <br>Counter = 71 <br>Counter = 74 <br>Counter = 77 <br>Counter = 80 <br>Counter = 83 <br><br><br><br>com.zwchen.servlet.SimpleServlet@11e1bbf ==&gt; Thread[http-8081-Processor22,5,main]: <br>Counter = 61 <br>Counter = 63 <br>Counter = 66 <br>Counter = 69 <br>Counter = 72 <br>Counter = 75 <br>Counter = 78 <br>Counter = 81 <br>Counter = 84 <br>Counter = 87 <br><br><br><br>com.zwchen.servlet.SimpleServlet@11e1bbf ==&gt; Thread[http-8081-Processor24,5,main]: <br>Counter = 61 <br>Counter = 64 <br>Counter = 67 <br>Counter = 70 <br>Counter = 73 <br>Counter = 76 <br>Counter = 79 <br>Counter = 82 <br>Counter = 85 <br>Counter = 88 <br><br>我们会发现三点： <br><br>servlet只产生了一个Servlet对象，因为输出this时，其hashcode都一样， <br><br>servlet在不同的线程（线程池）中运行，如http-8081-Processor22，http-8081-Processor23 <br><br>Count被这三个doGet方法共享，并且并行修改。 <br><br><br><br>上面的结果，违反了线程安全的两个方面。 <br><br>那么，我们怎样保证按照我们期望的结果运行呢？首先，我想保证产生的count都是顺序执行的。 <br><br>我们将Servlet代码重构如下： <br><br><br></p> <div class="dp-highlighter" style="font-family: Monaco, 'DejaVu Sans Mono', 'Bitstream Vera Sans Mono', Consolas, 'Courier New', monospace; font-size: 12px; background-color: transparent; width: 694px; margin-left: 9px; padding: 1px;"> <div class="bar"> <div class="tools" style="text-align: left; color: black; font-weight: bold; padding: 3px; margin: 0px;">Java代码  <object classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,40,0" width="14" height="15"> <param name="src"> <embed type="application/x-shockwave-flash" width="14" height="15" src="http://zwchen.iteye.com/javascripts/syntaxhighlighter/clipboard_new.swf"></embed></object>  <a style="color: #108ac6; text-decoration: underline;" title="收藏这段代码" href="http://zwchen.iteye.com/blog/91088"><img class="star" style="border-color: initial;" src="http://zwchen.iteye.com/images/icon_star.png" alt="收藏代码"></a> </div> </div> <ol class="dp-j" style="font-size: 1em; line-height: 1.4em; margin-top: 0px; margin-right: 0px; margin-bottom: 1px; margin-left: 0px; padding-top: 2px; padding-right: 0px; padding-bottom: 2px; padding-left: 0px; background-color: #ffffff; color: #2b91af; border: 1px solid #d1d7dc;"> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;"><span class="keyword" style="color: #7f0055; font-weight: bold;">public</span><span style="color: black;"> </span><span class="keyword" style="color: #7f0055; font-weight: bold;">class</span><span style="color: black;"> SimpleServlet </span><span class="keyword" style="color: #7f0055; font-weight: bold;">extends</span><span style="color: black;"> HttpServlet  </span></span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">  </span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">{  </span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">  </span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">  <span class="comment" style="color: #008200;">//A variable that is NOT thread-safe!</span><span style="color: black;">  </span></span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">  </span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">  <span class="keyword" style="color: #7f0055; font-weight: bold;">private</span><span style="color: black;"> </span><span class="keyword" style="color: #7f0055; font-weight: bold;">int</span><span style="color: black;"> counter = </span><span class="number" style="color: #c00000;">0</span><span style="color: black;">;  </span></span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">  </span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">  <span class="keyword" style="color: #7f0055; font-weight: bold;">private</span><span style="color: black;"> String mutex = </span><span class="string" style="color: blue;">""</span><span style="color: black;">;  </span></span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">  </span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">   </span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">  </span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">  <span class="keyword" style="color: #7f0055; font-weight: bold;">public</span><span style="color: black;"> </span><span class="keyword" style="color: #7f0055; font-weight: bold;">void</span><span style="color: black;"> doGet(HttpServletRequest req, HttpServletResponse resp)  </span></span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">  </span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">    <span class="keyword" style="color: #7f0055; font-weight: bold;">throws</span><span style="color: black;"> ServletException, IOException  </span></span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">{  </span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">  </span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">    doPost(req, resp);  </span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">  </span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">  }  </span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">  </span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">  <span class="keyword" style="color: #7f0055; font-weight: bold;">public</span><span style="color: black;"> </span><span class="keyword" style="color: #7f0055; font-weight: bold;">void</span><span style="color: black;"> doPost(HttpServletRequest req, HttpServletResponse resp)  </span></span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">  </span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">    <span class="keyword" style="color: #7f0055; font-weight: bold;">throws</span><span style="color: black;"> ServletException, IOException  </span></span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">  </span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">  {  </span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">  </span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">    resp.getWriter().println(<span class="string" style="color: blue;">"&lt;HTML&gt;&lt;BODY&gt;"</span><span style="color: black;">);  </span></span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">  </span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">    resp.getWriter().println(<span class="keyword" style="color: #7f0055; font-weight: bold;">this</span><span style="color: black;"> + </span><span class="string" style="color: blue;">": &lt;br&gt;"</span><span style="color: black;">);  </span></span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">  </span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">    <span class="keyword" style="color: #7f0055; font-weight: bold;">synchronized</span><span style="color: black;"> (mutex)  </span></span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">  </span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">    {      </span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">      <span class="keyword" style="color: #7f0055; font-weight: bold;">for</span><span style="color: black;"> (</span><span class="keyword" style="color: #7f0055; font-weight: bold;">int</span><span style="color: black;"> c = </span><span class="number" style="color: #c00000;">0</span><span style="color: black;">; c &lt; </span><span class="number" style="color: #c00000;">10</span><span style="color: black;">; c++)  </span></span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">      {  </span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">        resp.getWriter().println(<span class="string" style="color: blue;">"Counter = "</span><span style="color: black;"> + counter + </span><span class="string" style="color: blue;">"&lt;BR&gt;"</span><span style="color: black;">);  </span></span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">        <span class="keyword" style="color: #7f0055; font-weight: bold;">try</span><span style="color: black;">  </span></span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">          {  </span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">  </span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">          Thread.sleep((<span class="keyword" style="color: #7f0055; font-weight: bold;">long</span><span style="color: black;">) Math.random() * </span><span class="number" style="color: #c00000;">1000</span><span style="color: black;">);  </span></span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">          counter++;  </span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">        }  </span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">        <span class="keyword" style="color: #7f0055; font-weight: bold;">catch</span><span style="color: black;"> (InterruptedException exc) { }  </span></span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">      }  </span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">    }  </span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">    resp.getWriter().println(<span class="string" style="color: blue;">"&lt;/BODY&gt;&lt;/HTML&gt;"</span><span style="color: black;">);  </span></span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">  }  </span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">  </span></li> <li style="font-size: 1em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 38px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 10px; border-left-width: 1px; border-left-style: solid; border-left-color: #d1d7dc; background-color: #fafafa; line-height: 18px;"><span style="color: black;">}  </span></li> </ol> </div> <p> <br><br><br>我们的输出结果为： <br><br>com.zwchen.servlet.SimpleServlet@109da93: <br>Counter = 0 <br>Counter = 1 <br>Counter = 2 <br>Counter = 3 <br>Counter = 4 <br>Counter = 5 <br>Counter = 6 <br>Counter = 7 <br>Counter = 8 <br>Counter = 9 <br><br><br>com.zwchen.servlet.SimpleServlet@109da93: <br>Counter = 10 <br>Counter = 11 <br>Counter = 12 <br>Counter = 13 <br>Counter = 14 <br>Counter = 15 <br>Counter = 16 <br>Counter = 17 <br>Counter = 18 <br>Counter = 19 <br><br>com.zwchen.servlet.SimpleServlet@109da93: <br>Counter = 20 <br>Counter = 21 <br>Counter = 22 <br>Counter = 23 <br>Counter = 24 <br>Counter = 25 <br>Counter = 26 <br>Counter = 27 <br>Counter = 28 <br>Counter = 29 <br><br><br>这符合了我们的要求，输出都是按顺序的，这正式synchronized的含义。 <br><br>附带说一下，我现在synchronized的是一个字符串变量mutex，不是this对象，这主要是从performance和Scalability考虑。Synchronized用在this对象上，会带来严重的可伸缩性的问题（Scalability），所有的并发请求都要排队！</p> <p> </p> <p> </p> <p> </p> <p> </p> <p> </p>

package com.pohsin.test; import java.io.IOException; import java.io.StringReader; import org.apache.lucene.analysis.Analyzer; import org.apache.lucene.analysis.TokenStream; import org.apache.lucene.analysis.standard.StandardAnalyzer; import org.apache.lucene.document.Document; import org.apache.lucene.document.Field; import org.apache.lucene.index.IndexWriter; import org.apache.lucene.queryParser.ParseException; import org.apache.lucene.queryParser.QueryParser; import org.apache.lucene.search.Hits; import org.apache.lucene.search.IndexSearcher; import org.apache.lucene.search.Query; import org.apache.lucene.search.highlight.Highlighter; import org.apache.lucene.search.highlight.QueryScorer; import org.apache.lucene.search.highlight.SimpleFragmenter; import org.apache.lucene.search.highlight.SimpleHTMLFormatter; public class MyHighLighter { private String indexPath = "F:\\index"; private Analyzer analyzer; private IndexSearcher searcher; public MyHighLighter(){ analyzer = new StandardAnalyzer(); } public void createIndex() throws IOException { // 该方法建立索引 IndexWriter writer = new IndexWriter(indexPath,analyzer,true); Document docA = new Document(); String fileTextA = "因为火烧云总是燃烧着消失在太阳冲下地平线的时刻，然后便是宁静的自然的天籁，没有谁会在这样的时光的镜片里伤感自语，因为灿烂给人以安静的舒适感。"; Field fieldA = new Field("contents", fileTextA, Field.Store.YES,Field.Index.TOKENIZED); docA.add(fieldA); Document docB = new Document(); String fileTextB = "因为带有以伤痕为代价的美丽风景总是让人不由地惴惴不安，紧接着袭面而来的抑或是病痛抑或是灾难，没有谁会能够安逸着恬然，因为模糊让人撕心裂肺地想呐喊。"; Field fieldB = new Field("contents", fileTextB, Field.Store.YES,Field.Index.TOKENIZED); docB.add(fieldB); Document docC = new Document(); String fileTextC = "我喜欢上了一个人孤独地行游，在梦与海洋的交接地带炽烈燃烧着。"+ "因为，一条孤独的鱼喜欢上了火焰的颜色，真是荒唐地不合逻辑。"; Field fieldC = new Field("contents", fileTextC, Field.Store.YES,Field.Index.TOKENIZED); docC.add(fieldC); writer.addDocument(docA); writer.addDocument(docB); writer.addDocument(docC); writer.optimize(); writer.close(); } public void search(String fieldName,String keyword) throws IOException, ParseException{ // 检索的方法，并实现高亮显示 searcher = new IndexSearcher(indexPath); QueryParser queryParse = new QueryParser(fieldName, analyzer); // 构造QueryParser，解析用户输入的检索关键字 Query query = queryParse.parse(keyword); Hits hits = searcher.search(query); for(int i=0;i<hits.length();i++){ Document doc = hits.doc(i); String text = doc.get(fieldName); SimpleHTMLFormatter simpleHTMLFormatter = new SimpleHTMLFormatter("<font color='red'>", "</font>"); Highlighter highlighter = new Highlighter(simpleHTMLFormatter,new QueryScorer(query)); highlighter.setTextFragmenter(new SimpleFragmenter(text.length())); if (text != null) { TokenStream tokenStream = analyzer.tokenStream(fieldName,new StringReader(text)); String highLightText = highlighter.getBestFragment(tokenStream, text); System.out.println("★高亮显示第 "+(i+1) +" 条检索结果如下所示："); System.out.println(highLightText); } } searcher.close(); } public static void main(String[] args) { // 测试主函数 MyHighLighter mhl = new MyHighLighter(); try { mhl.createIndex(); mhl.search("contents", "因为"); } catch (IOException e) { e.printStackTrace(); } catch (ParseException e) { e.printStackTrace(); } } } 这是测试文件,但是在我运行的时候报错,请大虾们帮忙看一下 Exception in thread "main" java.lang.NoSuchMethodError: org.apache.lucene.analysis.Token: method <init>()V not found at org.apache.lucene.search.highlight.Highlighter.getBestTextFragments(Highlighter.java:220) at org.apache.lucene.search.highlight.Highlighter.getBestFragments(Highlighter.java:177) at org.apache.lucene.search.highlight.Highlighter.getBestFragment(Highlighter.java:103) at com.pohsin.test.MyHighLighter.search(MyHighLighter.java:69) at com.pohsin.test.MyHighLighter.main(MyHighLighter.java:82)

<div class="post-text" itemprop="text"> <p>Unfortunately, HighlightJS not highlighting my code in WordPress site. The highlightJS background shows, but the syntax isn't highlighting.</p> <p>Here's the following code:</p> <pre><code>class WordPress_Code_Highlighter { public function __construct() { add_action( 'wp_enqueue_scripts', [ $this, 'register_styles' ], 15 ); add_action( 'wp_enqueue_scripts', [ $this, 'register_scripts' ] ); } public function register_styles() { wp_register_style( 'wordpress-code-highlighter', plugin_dir_url( __FILE__ ) . 'bower_components/highlight.js/src/styles/dracula.css', [ ], '9.3.0' ); wp_enqueue_style( 'wordpress-code-highlighter' ); } public function register_scripts() { wp_register_script( 'wordpress-code-highlight', plugin_dir_url( __FILE__ ) . 'bower_components/highlight.js/src/highlight.js', [ ], '9.3.0', true ); wp_enqueue_script( 'wordpress-code-highlight' ); wp_register_script( 'wordpress-code-highlighter', plugin_dir_url( __FILE__ ) . 'resources/assets/js/wordpress-code-highlighter.js', [ ], '1.0', true ); wp_enqueue_script( 'wordpress-code-highlighter' ); } } new WordPress_Code_Highlighter(); </code></pre> <p>Here's the Javascript.</p> <pre><code>jQuery(document).ready(function () { jQuery('pre code').each(function (i, block) { hljs.highlightBlock(block); }); }); </code></pre> <p>For your convenience, I also attached a screenshot. <a href="https://i.stack.imgur.com/zOglb.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/zOglb.png" alt="HighlightJS Syntax Not Highlighting"></a></p> </div>

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如果世界上都是这种不思进取的软件公司，那别说大部分程序员只会写 3 年代码，恐怕就没有程序员这种职业。

有小伙伴问松哥这个问题，他在上海某公司，在离职了几个月后，前公司的领导联系到他，希望他能够返聘回去，他很纠结要不要回去？ 俗话说好马不吃回头草，但是这个小伙伴既然感到纠结了，我觉得至少说明了两个问题：1.曾经的公司还不错；2.现在的日子也不是很如意。否则应该就不会纠结了。 老实说，松哥之前也有过类似的经历，今天就来和小伙伴们聊聊回头草到底吃不吃。 首先一个基本观点，就是离职了也没必要和老东家弄的苦...

面试官问HTTP与HTTPS的区别，我这样回答让他竖起大拇指！

往往，我们看不进去大段大段的逻辑。深刻的哲理，往往短而精悍，一阵见血。问：产品经理挺漂亮的，有点心动，但不知道合不合得来。男生更看重女生的身材脸蛋，还是...

本文作者用对比非常鲜明的两个开发团队的故事，讲解了敏捷开发之道 —— 如果你的团队缺乏统一标准的环境，那么即使勤劳努力，不仅会极其耗时而且成果甚微，使用...

二哥，有个事想询问下您的意见，您觉得应届生值得去外包吗？公司虽然挺大的，中xx，但待遇感觉挺低，马上要报到，挺纠结的。

当HR压你价，说你只值7K时，你可以流畅地回答，记住，是流畅，不能犹豫。 礼貌地说：“7K是吗？了解了。嗯~其实我对贵司的面试官印象很好。只不过，现在我的手头上已经有一份11K的offer。来面试，主要也是自己对贵司挺有兴趣的，所以过来看看……”（未完） 这段话主要是陪HR互诈的同时，从公司兴趣，公司职员印象上，都给予对方正面的肯定，既能提升HR的好感度，又能让谈判气氛融洽，为后面的发挥留足空间。...

HashMap底层实现原理，红黑树，B+树，B树的结构原理 Spring的AOP和IOC是什么？它们常见的使用场景有哪些？Spring事务，事务的属性，传播行为，数据库隔离级别 Spring和SpringMVC，MyBatis以及SpringBoot的注解分别有哪些？SpringMVC的工作原理，SpringBoot框架的优点，MyBatis框架的优点 SpringCould组件有哪些，他们...

面试阿里p7被问到的问题(当时我只知道第一个)：@Conditional是做什么的?@Conditional多个条件是什么逻辑关系？条件判断在什么时候执...

终于懂了TCP和UDP协议区别

爬取彼岸桌面网站较为简单，用到了requests、lxml、Beautiful Soup4