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MyEclipse使用总结——修改MyEclipse默认的Servlet和jsp代码模板

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一、修改Servlet的默认模板代码  

  使用MyEclipse创建Servlet时,根据默认的Servlet模板生成的Servlet代码如下:

 package gacl.servlet.study;

 import java.io.IOException;
 import java.io.PrintWriter;

 import javax.servlet.ServletException;
 import javax.servlet.http.HttpServlet;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;

 public class ServletDefaultTemplateCode extends HttpServlet {

     /**
      * The doGet method of the servlet. <br>
      *
      * This method is called when a form has its tag value method equals to get.
      * 
      * @param request the request send by the client to the server
      * @param response the response send by the server to the client
      * @throws ServletException if an error occurred
      * @throws IOException if an error occurred
      */
     public void doGet(HttpServletRequest request, HttpServletResponse response)
             throws ServletException, IOException {

         response.setContentType("text/html");
         PrintWriter out = response.getWriter();
         out.println("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">");
         out.println("<HTML>");
         out.println("  <HEAD><TITLE>A Servlet</TITLE></HEAD>");
         out.println("  <BODY>");
         out.print("    This is ");
         out.print(this.getClass());
         out.println(", using the GET method");
         out.println("  </BODY>");
         out.println("</HTML>");
         out.flush();
         out.close();
     }

     /**
      * The doPost method of the servlet. <br>
      *
      * This method is called when a form has its tag value method equals to post.
      * 
      * @param request the request send by the client to the server
      * @param response the response send by the server to the client
      * @throws ServletException if an error occurred
      * @throws IOException if an error occurred
      */
     public void doPost(HttpServletRequest request, HttpServletResponse response)
             throws ServletException, IOException {

         response.setContentType("text/html");
         PrintWriter out = response.getWriter();
         out.println("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">");
         out.println("<HTML>");
         out.println("  <HEAD><TITLE>A Servlet</TITLE></HEAD>");
         out.println("  <BODY>");
         out.print("    This is ");
         out.print(this.getClass());
         out.println(", using the POST method");
         out.println("  </BODY>");
         out.println("</HTML>");
         out.flush();
         out.close();
     }

 }

  在实际开发中,这些生成的代码和注释一般我们都用不到的,每次都要手工删除这些注释和代码,很麻烦,因此可以根据开发的实际情况修改Servlet的模板代码,改成符合实际开发需求的模板代码。下面以MyEclipse 10为例进行说明如何修改Servlet的模板代码

  具体步骤如下:找到MyEclipse安装目录下的\Common\plugins文件夹,比如:D:\MyEclipse10\Common\plugins,然后找到com.genuitec.eclipse.wizards_9.0.0.me201108091322.jar这个jar文件,为了方便查找com.genuitec.eclipse.wizards_9.0.0.me201108091322.jar这个jar文件,建议使用【SearchEverything】这样的文件查找工具,如下图所示:

  44_1.png

  44_2.png

  44_3.png

  用压缩工具打开,注意是打开不是解压这个jar包,如下图所示:

  44_4.png

  44_5.png

  打开com.genuitec.eclipse.wizards_9.0.0.me201108091322.jar这个jar文件后,可以看到里面有一个templates文件夹,进入templates文件夹,可以看到里面有一个Servlet.java文件,如下图所示:

  44_6.png

  打开Servlet.java文件,可以看到里面的模板代码:

 #---------------------------------------------#
 # <aw:description>Template for Servlet</aw:description>
 # <aw:version>1.1</aw:version>
 # <aw:date>04/05/2003</aw:date>
 # <aw:author>Ferret Renaud</aw:author>
 #---------------------------------------------#

 <aw:import>java.io.IOException</aw:import>
 <aw:import>java.io.PrintWriter</aw:import>

 <aw:import>javax.servlet.ServletException</aw:import>
 <aw:import>javax.servlet.http.HttpServlet</aw:import>
 <aw:import>javax.servlet.http.HttpServletRequest</aw:import>
 <aw:import>javax.servlet.http.HttpServletResponse</aw:import>

 <aw:parentClass>javax.servlet.http.HttpServlet</aw:parentClass>

 <aw:constructor name="c1">
     /**
      * Constructor of the object.
      */
     public <aw:className/>() {
         super();
     }

 </aw:constructor> 

 <aw:method name="doGet">
     /**
      * The doGet method of the servlet. <br>
      *
      * This method is called when a form has its tag value method equals to get.
      * 
      * @param request the request send by the client to the server
      * @param response the response send by the server to the client
      * @throws ServletException if an error occurred
      * @throws IOException if an error occurred
      */
     public void doGet(HttpServletRequest request, HttpServletResponse response)
         throws ServletException, IOException {

         response.setContentType("text/html");
         PrintWriter out = response.getWriter();
         out.println(
             "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">");
         out.println("<HTML>");
         out.println("  <HEAD><TITLE>A Servlet</TITLE></HEAD>");
         out.println("  <BODY>");
         out.print("    This is ");
         out.print(this.getClass());
         out.println(", using the GET method");
         out.println("  </BODY>");
         out.println("</HTML>");
         out.flush();
         out.close();
     }

 </aw:method>

 <aw:method name="doPost">
     /**
      * The doPost method of the servlet. <br>
      *
      * This method is called when a form has its tag value method equals to post.
      * 
      * @param request the request send by the client to the server
      * @param response the response send by the server to the client
      * @throws ServletException if an error occurred
      * @throws IOException if an error occurred
      */
     public void doPost(HttpServletRequest request, HttpServletResponse response)
         throws ServletException, IOException {

         response.setContentType("text/html");
         PrintWriter out = response.getWriter();
         out.println(
             "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">");
         out.println("<HTML>");
         out.println("  <HEAD><TITLE>A Servlet</TITLE></HEAD>");
         out.println("  <BODY>");
         out.print("    This is ");
         out.print(this.getClass());
         out.println(", using the POST method");
         out.println("  </BODY>");
         out.println("</HTML>");
         out.flush();
         out.close();
     }

 </aw:method>

 <aw:method name="doPut">
     /**
      * The doPut method of the servlet. <br>
      *
      * This method is called when a HTTP put request is received.
      * 
      * @param request the request send by the client to the server
      * @param response the response send by the server to the client
      * @throws ServletException if an error occurred
      * @throws IOException if an error occurred
      */
     public void doPut(HttpServletRequest request, HttpServletResponse response)
         throws ServletException, IOException {

         // Put your code here
     }

 </aw:method>

 <aw:method name="doDelete">
     /**
      * The doDelete method of the servlet. <br>
      *
      * This method is called when a HTTP delete request is received.
      * 
      * @param request the request send by the client to the server
      * @param response the response send by the server to the client
      * @throws ServletException if an error occurred
      * @throws IOException if an error occurred
      */
     public void doDelete(HttpServletRequest request, HttpServletResponse response)
         throws ServletException, IOException {

         // Put your code here
     }

 </aw:method>

 <aw:method name="init">
     /**
      * Initialization of the servlet. <br>
      *
      * @throws ServletException if an error occurs
      */
     public void init() throws ServletException {
         // Put your code here
     }

 </aw:method>

 <aw:method name="destroy">
     /**
      * Destruction of the servlet. <br>
      */
     public void destroy() {
         super.destroy(); // Just puts "destroy" string in log
         // Put your code here
     }

 </aw:method>

 <aw:method name="getServletInfo">
     /**
      * Returns information about the servlet, such as 
      * author, version, and copyright. 
      *
      * @return String information about this servlet
      */
     public String getServletInfo() {
         return "This is my default servlet created by Eclipse";
     }

 </aw:method>

修改该模板,根据自己的实际情况进行修改,比如

  44_7.png

  删除doGet和doPost里面的代码和方法注释,在doPost方法里面调用doGet,这是根据实际情况修改成的模板代码,修改好之后,保存,重启MyEclipse,使用MyEclipse创建Servlet,此时就是用刚才修改过的模板进行生成了,生成的代码如下:

 package gacl.servlet.study;

 import java.io.IOException;

 import javax.servlet.ServletException;
 import javax.servlet.http.HttpServlet;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;

 public class ServletNewTemplateCode extends HttpServlet {

     public void doGet(HttpServletRequest request, HttpServletResponse response)
             throws ServletException, IOException {

     }

     public void doPost(HttpServletRequest request, HttpServletResponse response)
             throws ServletException, IOException {
         doGet(request, response);
     }

 }

二、修改jsp的默认模板

  同样也是找到com.genuitec.eclipse.wizards_9.0.0.me201108091322.jar这个jar文件,用压缩工具打开,进入templates\jsp文件夹,可以看到MyEclipse自带的那些jsp模板,如下图所示:

  44_8.png

  这些jsp模板是MyEclipse自带的,我们也可以依样画葫芦,根据平时项目开发中的实际情况,创建一个jsp模板,然后添加到jsp目录中,操作步骤如下:

  1、随便复制一个jsp模板出来(如:Jsp.vtl),复制到系统的桌面或者系统的其他盘进行存储

  44_9.png

  2、修改复制出来的模板,使用记事本或者editplus打开Jsp.vtl,可以看到Jsp.vtl的模板代码,如下所示:

 #*---------------------------------------------#
 # Template for a JSP
 # @version: 1.2
 # @author: Ferret Renaud
 # @author: Jed Anderson
 #---------------------------------------------#
 *#<%@ page language="java" import="java.util.*" pageEncoding="$encoding"%>
 <%
 String path = request.getContextPath();
 String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
 %>

 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
 <html>
   <head>
     <base href="<%=basePath%>">

     <title>My JSP '$title' starting page</title>

     #parse( "templates/jsp/JSPMetaTags.vtl" )
   </head>

   <body>
     This is my JSP page. <br>
   </body>
 </html>

  这是Jsp.vtl的模板原始代码,这个模板的代码对于我来说不太符合项目开发中的实际情况,需要修改,修改后的模板如下:

 #*---------------------------------------------#
 # Template for a JSP
 # @version: 1.2
 # @author: 孤傲苍狼
 #---------------------------------------------#
 *#<%@ page language="java" pageEncoding="UTF-8"%>
 <!DOCTYPE HTML>
 <html>
   <head>
     <title></title>
   </head>

   <body>

   </body>
 </html>

  为了避免覆盖原来的Jsp.vtl模板,将修改后的Jsp.vtl模板重命名,例如重命名成gacl.vtl。

  3.将gacl.vtl模板复制,然后粘贴到com.genuitec.eclipse.wizards_9.0.0.me201108091322.jar包里面的templates\jsp文件夹里。

  44_10.png

  4、从查看解压文件的界面中,返回到根目录(即com.genuitec.eclipse.wizards_9.0.0.me201108091322.jar目录),找到模版配置文件templates.xml,如下图所示:
  

来源:http://dwz.date/2UM

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