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

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

吞吞吐吐的 2017-11-03 20:32:00 浏览1342
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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:

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 1 package gacl.servlet.study;
 2 
 3 import java.io.IOException;
 4 import java.io.PrintWriter;
 5 
 6 import javax.servlet.ServletException;
 7 import javax.servlet.http.HttpServlet;
 8 import javax.servlet.http.HttpServletRequest;
 9 import javax.servlet.http.HttpServletResponse;
10 
11 public class ServletDefaultTemplateCode extends HttpServlet {
12 
13     /**
14      * The doGet method of the servlet. <br>
15      *
16      * This method is called when a form has its tag value method equals to get.
17      * 
18      * @param request the request send by the client to the server
19      * @param response the response send by the server to the client
20      * @throws ServletException if an error occurred
21      * @throws IOException if an error occurred
22      */
23     public void doGet(HttpServletRequest request, HttpServletResponse response)
24             throws ServletException, IOException {
25 
26         response.setContentType("text/html");
27         PrintWriter out = response.getWriter();
28         out.println("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">");
29         out.println("<HTML>");
30         out.println("  <HEAD><TITLE>A Servlet</TITLE></HEAD>");
31         out.println("  <BODY>");
32         out.print("    This is ");
33         out.print(this.getClass());
34         out.println(", using the GET method");
35         out.println("  </BODY>");
36         out.println("</HTML>");
37         out.flush();
38         out.close();
39     }
40 
41     /**
42      * The doPost method of the servlet. <br>
43      *
44      * This method is called when a form has its tag value method equals to post.
45      * 
46      * @param request the request send by the client to the server
47      * @param response the response send by the server to the client
48      * @throws ServletException if an error occurred
49      * @throws IOException if an error occurred
50      */
51     public void doPost(HttpServletRequest request, HttpServletResponse response)
52             throws ServletException, IOException {
53 
54         response.setContentType("text/html");
55         PrintWriter out = response.getWriter();
56         out.println("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">");
57         out.println("<HTML>");
58         out.println("  <HEAD><TITLE>A Servlet</TITLE></HEAD>");
59         out.println("  <BODY>");
60         out.print("    This is ");
61         out.print(this.getClass());
62         out.println(", using the POST method");
63         out.println("  </BODY>");
64         out.println("</HTML>");
65         out.flush();
66         out.close();
67     }
68 
69 }
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  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:

  

  

  

  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:

  

  

  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:

  

  打开Servlet.java文件,可以看到里面的模板代码:

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  1 #---------------------------------------------#
  2 # <aw:description>Template for Servlet</aw:description>
  3 # <aw:version>1.1</aw:version>
  4 # <aw:date>04/05/2003</aw:date>
  5 # <aw:author>Ferret Renaud</aw:author>
  6 #---------------------------------------------#
  7 
  8 <aw:import>java.io.IOException</aw:import>
  9 <aw:import>java.io.PrintWriter</aw:import>
 10 
 11 <aw:import>javax.servlet.ServletException</aw:import>
 12 <aw:import>javax.servlet.http.HttpServlet</aw:import>
 13 <aw:import>javax.servlet.http.HttpServletRequest</aw:import>
 14 <aw:import>javax.servlet.http.HttpServletResponse</aw:import>
 15 
 16 <aw:parentClass>javax.servlet.http.HttpServlet</aw:parentClass>
 17 
 18 <aw:constructor name="c1">
 19     /**
 20      * Constructor of the object.
 21      */
 22     public <aw:className/>() {
 23         super();
 24     }
 25 
 26 </aw:constructor> 
 27  
 28 <aw:method name="doGet">
 29     /**
 30      * The doGet method of the servlet. <br>
 31      *
 32      * This method is called when a form has its tag value method equals to get.
 33      * 
 34      * @param request the request send by the client to the server
 35      * @param response the response send by the server to the client
 36      * @throws ServletException if an error occurred
 37      * @throws IOException if an error occurred
 38      */
 39     public void doGet(HttpServletRequest request, HttpServletResponse response)
 40         throws ServletException, IOException {
 41 
 42         response.setContentType("text/html");
 43         PrintWriter out = response.getWriter();
 44         out.println(
 45             "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">");
 46         out.println("<HTML>");
 47         out.println("  <HEAD><TITLE>A Servlet</TITLE></HEAD>");
 48         out.println("  <BODY>");
 49         out.print("    This is ");
 50         out.print(this.getClass());
 51         out.println(", using the GET method");
 52         out.println("  </BODY>");
 53         out.println("</HTML>");
 54         out.flush();
 55         out.close();
 56     }
 57 
 58 </aw:method>
 59 
 60 <aw:method name="doPost">
 61     /**
 62      * The doPost method of the servlet. <br>
 63      *
 64      * This method is called when a form has its tag value method equals to post.
 65      * 
 66      * @param request the request send by the client to the server
 67      * @param response the response send by the server to the client
 68      * @throws ServletException if an error occurred
 69      * @throws IOException if an error occurred
 70      */
 71     public void doPost(HttpServletRequest request, HttpServletResponse response)
 72         throws ServletException, IOException {
 73 
 74         response.setContentType("text/html");
 75         PrintWriter out = response.getWriter();
 76         out.println(
 77             "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">");
 78         out.println("<HTML>");
 79         out.println("  <HEAD><TITLE>A Servlet</TITLE></HEAD>");
 80         out.println("  <BODY>");
 81         out.print("    This is ");
 82         out.print(this.getClass());
 83         out.println(", using the POST method");
 84         out.println("  </BODY>");
 85         out.println("</HTML>");
 86         out.flush();
 87         out.close();
 88     }
 89 
 90 </aw:method>
 91 
 92 <aw:method name="doPut">
 93     /**
 94      * The doPut method of the servlet. <br>
 95      *
 96      * This method is called when a HTTP put request is received.
 97      * 
 98      * @param request the request send by the client to the server
 99      * @param response the response send by the server to the client
100      * @throws ServletException if an error occurred
101      * @throws IOException if an error occurred
102      */
103     public void doPut(HttpServletRequest request, HttpServletResponse response)
104         throws ServletException, IOException {
105 
106         // Put your code here
107     }
108 
109 </aw:method>
110 
111 <aw:method name="doDelete">
112     /**
113      * The doDelete method of the servlet. <br>
114      *
115      * This method is called when a HTTP delete request is received.
116      * 
117      * @param request the request send by the client to the server
118      * @param response the response send by the server to the client
119      * @throws ServletException if an error occurred
120      * @throws IOException if an error occurred
121      */
122     public void doDelete(HttpServletRequest request, HttpServletResponse response)
123         throws ServletException, IOException {
124 
125         // Put your code here
126     }
127 
128 </aw:method>
129 
130 <aw:method name="init">
131     /**
132      * Initialization of the servlet. <br>
133      *
134      * @throws ServletException if an error occurs
135      */
136     public void init() throws ServletException {
137         // Put your code here
138     }
139 
140 </aw:method>
141 
142 <aw:method name="destroy">
143     /**
144      * Destruction of the servlet. <br>
145      */
146     public void destroy() {
147         super.destroy(); // Just puts "destroy" string in log
148         // Put your code here
149     }
150 
151 </aw:method>
152 
153 <aw:method name="getServletInfo">
154     /**
155      * Returns information about the servlet, such as 
156      * author, version, and copyright. 
157      *
158      * @return String information about this servlet
159      */
160     public String getServletInfo() {
161         return "This is my default servlet created by Eclipse";
162     }
163 
164 </aw:method>
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 修改该模板,根据自己的实际情况进行修改,比如

  

  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:

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 1 package gacl.servlet.study;
 2 
 3 import java.io.IOException;
 4 
 5 import javax.servlet.ServletException;
 6 import javax.servlet.http.HttpServlet;
 7 import javax.servlet.http.HttpServletRequest;
 8 import javax.servlet.http.HttpServletResponse;
 9 
10 public class ServletNewTemplateCode extends HttpServlet {
11 
12     public void doGet(HttpServletRequest request, HttpServletResponse response)
13             throws ServletException, IOException {
14 
15     }
16 
17     public void doPost(HttpServletRequest request, HttpServletResponse response)
18             throws ServletException, IOException {
19         doGet(request, response);
20     }
21 
22 }
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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:

  

  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

  

  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:

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 1 #*---------------------------------------------#
 2 # Template for a JSP
 3 # @version: 1.2
 4 # @author: Ferret Renaud
 5 # @author: Jed Anderson
 6 #---------------------------------------------#
 7 *#<%@ page language="java" import="java.util.*" pageEncoding="$encoding"%>
 8 <%
 9 String path = request.getContextPath();
10 String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
11 %>
12 
13 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
14 <html>
15   <head>
16     <base href="<%=basePath%>">
17     
18     <title>My JSP '$title' starting page</title>
19     
20     #parse( "templates/jsp/JSPMetaTags.vtl" )
21   </head>
22   
23   <body>
24     This is my JSP page. <br>
25   </body>
26 </html>
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  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:

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 1 #*---------------------------------------------#
 2 # Template for a JSP
 3 # @version: 1.2
 4 # @author: 孤傲苍狼
 5 #---------------------------------------------#
 6 *#<%@ page language="java" pageEncoding="UTF-8"%>
 7 <!DOCTYPE HTML>
 8 <html>
 9   <head>
10     <title></title>
11   </head>
12   
13   <body>
14     
15   </body>
16 </html>
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  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。

  

  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: