Netbeans IDE 中创建Servlet

àì夳堔傛蜴生んèń 2023-09-30 09:17 122阅读 0赞

在本教程中，您将通过实际示例了解 Netbeans 上的 Servlet 及其应用。

### Netbeans 上的 Servlet ###

我们已经讨论了 servlet 方法，并且在之前的文章中也看到了一些 Servlet 示例。现在让我们在 Netbeans IDE 中创建一个简单的项目，并逐步了解 Servlet。

**第 1 步：-**首先我们需要创建一个项目，然后单击 netbeans 中的文件，如下图所示。

![743d8245bb71e079f5617e9204e23951.png][]

**第 2 步：-**在第二步中，您必须单击新建项目，然后需要在**Java Web**上选择**Web 应用程序**，如下图所示。

![181f2f9dcfcb21d220a00418999e462d.png][]

**第 3 步：-**选择项目的名称和位置后，您必须单击下一步，然后单击完成。检查下图以供参考。

![a2436cb5352ddc287e4d16a050ce5623.png][]

**第 4 步：-**您将获得默认**的index.html**文件。我们稍后会在这个文件中做一些修改。在这一步中，我们将创建 servlet，为此请查看下图。

![b906514c4d41f617bbe0d22ea29e221f.png][]

右键单击默认包，然后选择 Servlet。您将获得如下图所示的屏幕。

![b91fc34fa3ef016b0ef4a8e408d641d9.png][]

输入您的 Servlet 名称，然后单击下一步。检查下面的图片。

![bdb82e91eac2a5e80396506b0c17c681.png][]

注意：确保您已单击复选框，因为它用于在**web.xml**文件中声明您的 servlet。我们都准备好创建 Servlet。单击完成。

**第 5 步：- Index.html：**该文件将是我们的欢迎文件，单击按钮后它将重定向到我们的 TestServlet.java 类。检查下面的代码。

**输出 ：-**

此文件输出将如下图所示。

![42b3b663ad2807888cb7e9054ab56b63.png][]

**第6步：-**

**TestServlet.java：**这是我们的 Test Servlet 类，请检查下面的代码。

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     <div style="margin-left:0;text-align:left;"> 
      <span style="color:#484848;"><span style="color:#000000;"><span style="color:#004ed0;">import </span><span style="color:#002d7a;">java</span><span style="color:#333333;">.</span><span style="color:#002d7a;">io</span><span style="color:#333333;">.</span><span style="color:#002d7a;">IOException</span><span style="color:#333333;">;</span></span></span> 
     </div> 
     <div style="margin-left:0;text-align:left;"> 
      <span style="color:#484848;"><span style="color:#000000;"><span style="color:#004ed0;">import </span><span style="color:#002d7a;">java</span><span style="color:#333333;">.</span><span style="color:#002d7a;">io</span><span style="color:#333333;">.</span><span style="color:#002d7a;">PrintWriter</span><span style="color:#333333;">;</span></span></span> 
     </div> 
     <div style="margin-left:0;text-align:left;"> 
      <span style="color:#484848;"><span style="color:#000000;"><span style="color:#004ed0;">import </span><span style="color:#002d7a;">javax</span><span style="color:#333333;">.</span><span style="color:#002d7a;">servlet</span><span style="color:#333333;">.</span><span style="color:#002d7a;">ServletException</span><span style="color:#333333;">;</span></span></span> 
     </div> 
     <div style="margin-left:0;text-align:left;"> 
      <span style="color:#484848;"><span style="color:#000000;"><span style="color:#004ed0;">import </span><span style="color:#002d7a;">javax</span><span style="color:#333333;">.</span><span style="color:#002d7a;">servlet</span><span style="color:#333333;">.</span><span style="color:#002d7a;">http</span><span style="color:#333333;">.</span><span style="color:#002d7a;">HttpServlet</span><span style="color:#333333;">;</span></span></span> 
     </div> 
     <div style="margin-left:0;text-align:left;"> 
      <span style="color:#484848;"><span style="color:#000000;"><span style="color:#004ed0;">import </span><span style="color:#002d7a;">javax</span><span style="color:#333333;">.</span><span style="color:#002d7a;">servlet</span><span style="color:#333333;">.</span><span style="color:#002d7a;">http</span><span style="color:#333333;">.</span><span style="color:#002d7a;">HttpServletRequest</span><span style="color:#333333;">;</span></span></span> 
     </div> 
     <div style="margin-left:0;text-align:left;"> 
      <span style="color:#484848;"><span style="color:#000000;"><span style="color:#004ed0;">import </span><span style="color:#002d7a;">javax</span><span style="color:#333333;">.</span><span style="color:#002d7a;">servlet</span><span style="color:#333333;">.</span><span style="color:#002d7a;">http</span><span style="color:#333333;">.</span><span style="color:#002d7a;">HttpServletResponse</span><span style="color:#333333;">;</span></span></span> 
     </div> 
     <div style="margin-left:0;text-align:left;"> 
      <span style="color:#484848;"><span style="color:#000000;">&nbsp;</span></span> 
     </div> 
     <div style="margin-left:0;text-align:left;"> 
      <span style="color:#484848;"><span style="color:#000000;"><span style="color:#800080;">public</span> <span style="color:#800080;">class</span> <span style="color:#004ed0;">TestServlet</span> <span style="color:#800080;">extends</span> <span style="color:#004ed0;">HttpServlet</span> <span style="color:#333333;">{ </span></span></span> 
     </div> 
     <div style="margin-left:0;text-align:left;"> 
      <span style="color:#484848;"><span style="color:#000000;">&nbsp;</span></span> 
     </div> 
     <div style="margin-left:0;text-align:left;"> 
      <span style="color:#484848;"><span style="color:#000000;">&nbsp;&nbsp;&nbsp;&nbsp;<span style="color:#800080;">protected</span> <span style="color:#800080;">void</span> <span style="color:#004ed0;">processRequest</span><span style="color:#333333;">(</span><span style="color:#004ed0;">HttpServletRequest </span><span style="color:#002d7a;">request</span><span style="color:#333333;">,</span> <span style="color:#004ed0;">HttpServletResponse </span><span style="color:#002d7a;">response</span><span style="color:#333333;">)</span></span></span> 
     </div> 
     <div style="margin-left:0;text-align:left;"> 
      <span style="color:#484848;"><span style="color:#000000;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span style="color:#004ed0;">throws </span><span style="color:#002d7a;">ServletException</span><span style="color:#333333;">,</span> <span style="color:#004ed0;">IOException</span> <span style="color:#333333;">{ </span></span></span> 
     </div> 
     <div style="margin-left:0;text-align:left;"> 
      <span style="color:#484848;"><span style="color:#000000;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span style="color:#002d7a;">response</span><span style="color:#333333;">.</span><span style="color:#004ed0;">setContentType</span><span style="color:#333333;">(</span><span style="color:#008000;">"text/html;charset=UTF-8"</span><span style="color:#333333;">)</span><span style="color:#333333;">;</span></span></span> 
     </div> 
     <div style="margin-left:0;text-align:left;"> 
      <span style="color:#484848;"><span style="color:#000000;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span style="color:#800080;">try</span> <span style="color:#333333;">(</span><span style="color:#004ed0;">PrintWriter </span><span style="color:#002d7a;">out</span> <span style="color:#006fe0;">=</span> <span style="color:#002d7a;">response</span><span style="color:#333333;">.</span><span style="color:#004ed0;">getWriter</span><span style="color:#333333;">(</span><span style="color:#333333;">)</span><span style="color:#333333;">)</span> <span style="color:#333333;">{ </span></span></span> 
     </div> 
     <div style="margin-left:0;text-align:left;"> 
      <span style="color:#484848;"><span style="color:#000000;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span style="color:#ff8000;">/* TODO output your page here. You may use following sample code. */</span></span></span> 
     </div> 
     <div style="margin-left:0;text-align:left;"> 
      <span style="color:#484848;"><span style="color:#000000;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span style="color:#002d7a;">out</span><span style="color:#333333;">.</span><span style="color:#004ed0;">println</span><span style="color:#333333;">(</span><span style="color:#008000;">"&lt;!DOCTYPE html&gt;"</span><span style="color:#333333;">)</span><span style="color:#333333;">;</span></span></span> 
     </div> 
     <div style="margin-left:0;text-align:left;"> 
      <span style="color:#484848;"><span style="color:#000000;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span style="color:#002d7a;">out</span><span style="color:#333333;">.</span><span style="color:#004ed0;">println</span><span style="color:#333333;">(</span><span style="color:#008000;">"&lt;html&gt;"</span><span style="color:#333333;">)</span><span style="color:#333333;">;</span></span></span> 
     </div> 
     <div style="margin-left:0;text-align:left;"> 
      <span style="color:#484848;"><span style="color:#000000;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span style="color:#002d7a;">out</span><span style="color:#333333;">.</span><span style="color:#004ed0;">println</span><span style="color:#333333;">(</span><span style="color:#008000;">"&lt;head&gt;"</span><span style="color:#333333;">)</span><span style="color:#333333;">;</span></span></span> 
     </div> 
     <div style="margin-left:0;text-align:left;"> 
      <span style="color:#484848;"><span style="color:#000000;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span style="color:#002d7a;">out</span><span style="color:#333333;">.</span><span style="color:#004ed0;">println</span><span style="color:#333333;">(</span><span style="color:#008000;">"&lt;title&gt;W3adda.com Servlet Test&lt;/title&gt;"</span><span style="color:#333333;">)</span><span style="color:#333333;">;</span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></span> 
     </div> 
     <div style="margin-left:0;text-align:left;"> 
      <span style="color:#484848;"><span style="color:#000000;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span style="color:#002d7a;">out</span><span style="color:#333333;">.</span><span style="color:#004ed0;">println</span><span style="color:#333333;">(</span><span style="color:#008000;">"&lt;/head&gt;"</span><span style="color:#333333;">)</span><span style="color:#333333;">;</span></span></span> 
     </div> 
     <div style="margin-left:0;text-align:left;"> 
      <span style="color:#484848;"><span style="color:#000000;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span style="color:#002d7a;">out</span><span style="color:#333333;">.</span><span style="color:#004ed0;">println</span><span style="color:#333333;">(</span><span style="color:#008000;">"&lt;body&gt;"</span><span style="color:#333333;">)</span><span style="color:#333333;">;</span></span></span> 
     </div> 
     <div style="margin-left:0;text-align:left;"> 
      <span style="color:#484848;"><span style="color:#000000;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span style="color:#002d7a;">out</span><span style="color:#333333;">.</span><span style="color:#004ed0;">println</span><span style="color:#333333;">(</span><span style="color:#008000;">"&lt;h1&gt;Servlet TestServlet at "</span> <span style="color:#006fe0;">+</span> <span style="color:#002d7a;">request</span><span style="color:#333333;">.</span><span style="color:#004ed0;">getContextPath</span><span style="color:#333333;">(</span><span style="color:#333333;">)</span> <span style="color:#006fe0;">+</span> <span style="color:#008000;">"&lt;/h1&gt;"</span><span style="color:#333333;">)</span><span style="color:#333333;">;</span></span></span> 
     </div> 
     <div style="margin-left:0;text-align:left;"> 
      <span style="color:#484848;"><span style="color:#000000;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span style="color:#002d7a;">out</span><span style="color:#333333;">.</span><span style="color:#004ed0;">println</span><span style="color:#333333;">(</span><span style="color:#008000;">"&lt;/body&gt;"</span><span style="color:#333333;">)</span><span style="color:#333333;">;</span></span></span> 
     </div> 
     <div style="margin-left:0;text-align:left;"> 
      <span style="color:#484848;"><span style="color:#000000;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span style="color:#002d7a;">out</span><span style="color:#333333;">.</span><span style="color:#004ed0;">println</span><span style="color:#333333;">(</span><span style="color:#008000;">"&lt;/html&gt;"</span><span style="color:#333333;">)</span><span style="color:#333333;">;</span></span></span> 
     </div> 
     <div style="margin-left:0;text-align:left;"> 
      <span style="color:#484848;"><span style="color:#000000;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span style="color:#333333;">}</span></span></span> 
     </div> 
     <div style="margin-left:0;text-align:left;"> 
      <span style="color:#484848;"><span style="color:#000000;">&nbsp;&nbsp;&nbsp;&nbsp;<span style="color:#333333;">}</span></span></span> 
     </div> 
     <div style="margin-left:0;text-align:left;"> 
      <span style="color:#484848;"><span style="color:#000000;">&nbsp;</span></span> 
     </div> 
     <div style="margin-left:0;text-align:left;"> 
      <span style="color:#484848;"><span style="color:#000000;">&nbsp;&nbsp;&nbsp;&nbsp;<span style="color:#ff8000;">// &lt;editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code."&gt;</span></span></span> 
     </div> 
     <div style="margin-left:0;text-align:left;"> 
      <span style="color:#484848;"><span style="color:#000000;">&nbsp;&nbsp;&nbsp;&nbsp;<span style="color:#ff8000;">/**</span></span></span> 
     </div> 
     <div style="margin-left:0;text-align:left;"> 
      <span style="color:#484848;"><span style="color:#000000;"><span style="color:#ff8000;">&nbsp;&nbsp;&nbsp;&nbsp; * Handles the HTTP &lt;code&gt;GET&lt;/code&gt; method.</span></span></span> 
     </div> 
     <div style="margin-left:0;text-align:left;"> 
      <span style="color:#484848;"><span style="color:#000000;"><span style="color:#ff8000;">&nbsp;&nbsp;&nbsp;&nbsp; *</span></span></span> 
     </div> 
     <div style="margin-left:0;text-align:left;"> 
      <span style="color:#484848;"><span style="color:#000000;"><span style="color:#ff8000;">&nbsp;&nbsp;&nbsp;&nbsp; * @param request servlet request</span></span></span> 
     </div> 
     <div style="margin-left:0;text-align:left;"> 
      <span style="color:#484848;"><span style="color:#000000;"><span style="color:#ff8000;">&nbsp;&nbsp;&nbsp;&nbsp; * @param response servlet response</span></span></span> 
     </div> 
     <div style="margin-left:0;text-align:left;"> 
      <span style="color:#484848;"><span style="color:#000000;"><span style="color:#ff8000;">&nbsp;&nbsp;&nbsp;&nbsp; * @throws ServletException if a servlet-specific error occurs</span></span></span> 
     </div> 
     <div style="margin-left:0;text-align:left;"> 
      <span style="color:#484848;"><span style="color:#000000;"><span style="color:#ff8000;">&nbsp;&nbsp;&nbsp;&nbsp; * @throws IOException if an I/O error occurs</span></span></span> 
     </div> 
     <div style="margin-left:0;text-align:left;"> 
      <span style="color:#484848;"><span style="color:#000000;"><span style="color:#ff8000;">&nbsp;&nbsp;&nbsp;&nbsp; */</span></span></span> 
     </div> 
     <div style="margin-left:0;text-align:left;"> 
      <span style="color:#484848;"><span style="color:#000000;">&nbsp;&nbsp;&nbsp;&nbsp;<span style="color:#333333;">@</span><span style="color:#004ed0;">Override</span></span></span> 
     </div> 
     <div style="margin-left:0;text-align:left;"> 
      <span style="color:#484848;"><span style="color:#000000;">&nbsp;&nbsp;&nbsp;&nbsp;<span style="color:#800080;">protected</span> <span style="color:#800080;">void</span> <span style="color:#004ed0;">doGet</span><span style="color:#333333;">(</span><span style="color:#004ed0;">HttpServletRequest </span><span style="color:#002d7a;">request</span><span style="color:#333333;">,</span> <span style="color:#004ed0;">HttpServletResponse </span><span style="color:#002d7a;">response</span><span style="color:#333333;">)</span></span></span> 
     </div> 
     <div style="margin-left:0;text-align:left;"> 
      <span style="color:#484848;"><span style="color:#000000;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span style="color:#004ed0;">throws </span><span style="color:#002d7a;">ServletException</span><span style="color:#333333;">,</span> <span style="color:#004ed0;">IOException</span> <span style="color:#333333;">{ </span></span></span> 
     </div> 
     <div style="margin-left:0;text-align:left;"> 
      <span style="color:#484848;"><span style="color:#000000;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span style="color:#004ed0;">processRequest</span><span style="color:#333333;">(</span><span style="color:#002d7a;">request</span><span style="color:#333333;">,</span> <span style="color:#002d7a;">response</span><span style="color:#333333;">)</span><span style="color:#333333;">;</span></span></span> 
     </div> 
     <div style="margin-left:0;text-align:left;"> 
      <span style="color:#484848;"><span style="color:#000000;">&nbsp;&nbsp;&nbsp;&nbsp;<span style="color:#333333;">}</span></span></span> 
     </div> 
     <div style="margin-left:0;text-align:left;"> 
      <span style="color:#484848;"><span style="color:#000000;">&nbsp;</span></span> 
     </div> 
     <div style="margin-left:0;text-align:left;"> 
      <span style="color:#484848;"><span style="color:#000000;">&nbsp;&nbsp;&nbsp;&nbsp;<span style="color:#ff8000;">/**</span></span></span> 
     </div> 
     <div style="margin-left:0;text-align:left;"> 
      <span style="color:#484848;"><span style="color:#000000;"><span style="color:#ff8000;">&nbsp;&nbsp;&nbsp;&nbsp; * Handles the HTTP &lt;code&gt;POST&lt;/code&gt; method.</span></span></span> 
     </div> 
     <div style="margin-left:0;text-align:left;"> 
      <span style="color:#484848;"><span style="color:#000000;"><span style="color:#ff8000;">&nbsp;&nbsp;&nbsp;&nbsp; *</span></span></span> 
     </div> 
     <div style="margin-left:0;text-align:left;"> 
      <span style="color:#484848;"><span style="color:#000000;"><span style="color:#ff8000;">&nbsp;&nbsp;&nbsp;&nbsp; * @param request servlet request</span></span></span> 
     </div> 
     <div style="margin-left:0;text-align:left;"> 
      <span style="color:#484848;"><span style="color:#000000;"><span style="color:#ff8000;">&nbsp;&nbsp;&nbsp;&nbsp; * @param response servlet response</span></span></span> 
     </div> 
     <div style="margin-left:0;text-align:left;"> 
      <span style="color:#484848;"><span style="color:#000000;"><span style="color:#ff8000;">&nbsp;&nbsp;&nbsp;&nbsp; * @throws ServletException if a servlet-specific error occurs</span></span></span> 
     </div> 
     <div style="margin-left:0;text-align:left;"> 
      <span style="color:#484848;"><span style="color:#000000;"><span style="color:#ff8000;">&nbsp;&nbsp;&nbsp;&nbsp; * @throws IOException if an I/O error occurs</span></span></span> 
     </div> 
     <div style="margin-left:0;text-align:left;"> 
      <span style="color:#484848;"><span style="color:#000000;"><span style="color:#ff8000;">&nbsp;&nbsp;&nbsp;&nbsp; */</span></span></span> 
     </div> 
     <div style="margin-left:0;text-align:left;"> 
      <span style="color:#484848;"><span style="color:#000000;">&nbsp;&nbsp;&nbsp;&nbsp;<span style="color:#333333;">@</span><span style="color:#004ed0;">Override</span></span></span> 
     </div> 
     <div style="margin-left:0;text-align:left;"> 
      <span style="color:#484848;"><span style="color:#000000;">&nbsp;&nbsp;&nbsp;&nbsp;<span style="color:#800080;">protected</span> <span style="color:#800080;">void</span> <span style="color:#004ed0;">doPost</span><span style="color:#333333;">(</span><span style="color:#004ed0;">HttpServletRequest </span><span style="color:#002d7a;">request</span><span style="color:#333333;">,</span> <span style="color:#004ed0;">HttpServletResponse </span><span style="color:#002d7a;">response</span><span style="color:#333333;">)</span></span></span> 
     </div> 
     <div style="margin-left:0;text-align:left;"> 
      <span style="color:#484848;"><span style="color:#000000;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span style="color:#004ed0;">throws </span><span style="color:#002d7a;">ServletException</span><span style="color:#333333;">,</span> <span style="color:#004ed0;">IOException</span> <span style="color:#333333;">{ </span></span></span> 
     </div> 
     <div style="margin-left:0;text-align:left;"> 
      <span style="color:#484848;"><span style="color:#000000;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span style="color:#004ed0;">processRequest</span><span style="color:#333333;">(</span><span style="color:#002d7a;">request</span><span style="color:#333333;">,</span> <span style="color:#002d7a;">response</span><span style="color:#333333;">)</span><span style="color:#333333;">;</span></span></span> 
     </div> 
     <div style="margin-left:0;text-align:left;"> 
      <span style="color:#484848;"><span style="color:#000000;">&nbsp;&nbsp;&nbsp;&nbsp;<span style="color:#333333;">}</span></span></span> 
     </div> 
     <div style="margin-left:0;text-align:left;"> 
      <span style="color:#484848;"><span style="color:#000000;">&nbsp;</span></span> 
     </div> 
     <div style="margin-left:0;text-align:left;"> 
      <span style="color:#484848;"><span style="color:#000000;">&nbsp;&nbsp;&nbsp;&nbsp;<span style="color:#ff8000;">/**</span></span></span> 
     </div> 
     <div style="margin-left:0;text-align:left;"> 
      <span style="color:#484848;"><span style="color:#000000;"><span style="color:#ff8000;">&nbsp;&nbsp;&nbsp;&nbsp; * Returns a short description of the servlet.</span></span></span> 
     </div> 
     <div style="margin-left:0;text-align:left;"> 
      <span style="color:#484848;"><span style="color:#000000;"><span style="color:#ff8000;">&nbsp;&nbsp;&nbsp;&nbsp; *</span></span></span> 
     </div> 
     <div style="margin-left:0;text-align:left;"> 
      <span style="color:#484848;"><span style="color:#000000;"><span style="color:#ff8000;">&nbsp;&nbsp;&nbsp;&nbsp; * @return a String containing servlet description</span></span></span> 
     </div> 
     <div style="margin-left:0;text-align:left;"> 
      <span style="color:#484848;"><span style="color:#000000;"><span style="color:#ff8000;">&nbsp;&nbsp;&nbsp;&nbsp; */</span></span></span> 
     </div> 
     <div style="margin-left:0;text-align:left;"> 
      <span style="color:#484848;"><span style="color:#000000;">&nbsp;&nbsp;&nbsp;&nbsp;<span style="color:#333333;">@</span><span style="color:#004ed0;">Override</span></span></span> 
     </div> 
     <div style="margin-left:0;text-align:left;"> 
      <span style="color:#484848;"><span style="color:#000000;">&nbsp;&nbsp;&nbsp;&nbsp;<span style="color:#800080;">public</span> <span style="color:#800080;">String</span> <span style="color:#004ed0;">getServletInfo</span><span style="color:#333333;">(</span><span style="color:#333333;">)</span> <span style="color:#333333;">{ </span></span></span> 
     </div> 
     <div style="margin-left:0;text-align:left;"> 
      <span style="color:#484848;"><span style="color:#000000;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span style="color:#800080;">return</span> <span style="color:#008000;">"Short description"</span><span style="color:#333333;">;</span></span></span> 
     </div> 
     <div style="margin-left:0;text-align:left;"> 
      <span style="color:#484848;"><span style="color:#000000;">&nbsp;&nbsp;&nbsp;&nbsp;<span style="color:#333333;">}</span><span style="color:#ff8000;">// &lt;/editor-fold&gt;</span></span></span> 
     </div> 
     <div style="margin-left:0;text-align:left;"> 
      <span style="color:#484848;"><span style="color:#000000;">&nbsp;</span></span> 
     </div> 
     <div style="margin-left:0;text-align:left;"> 
      <span style="color:#484848;"><span style="color:#000000;"><span style="color:#333333;">}</span></span></span> 
     </div> 
    </div> </td> 
  </tr> 
 </tbody> 
</table>

**输出 ：-**

所以我们完成了这个例子，看看输出图像。

![49fdebd5730ad840f5489abf2b353ad3.png][]

在本教程中，我们通过实际示例了解了 Netbeans 上的 Servlet 及其应用。我希望你会喜欢这个教程。

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