myeclipse 2017 CI 中如何修改Servlet模板
在實際開發中，這些生成的代碼和註釋一般我們都用不到的，每次都要手工刪除這些註釋和代碼，很麻煩，因此可以根據開發的實際情況修改Servlet的模板代碼，改成符合實際開發需求的模板代碼。
下面以MyEclipse 2017爲例進行說明如何修改Servlet的模板代碼，具體步驟如下：
找到 MyEclipse 2017 CI 安裝目錄下的 plugins 文件夾，比如我的：D:\learn\Java\MyEclipse\MyEclipse 2017 CI\plugins，然後找到 com.genuitec.eclipse.wizards_13.0.0.me201612231634.jar 這個jar文件，
打開 com.genuitec.eclipse.wizards_13.0.0.me201612231634.jar 這個jar文件後，可以看到裏面有一個 templates 文件夾，進入 templates 文件夾，可以看到裏面有一個 Servlet.java 文件。
修改裏面的代碼：刪除 doGet 和 doPost 裏面的代碼和方法註釋，在 doPost 方法裏面調用 doGet ，這是根據實際情況修改成的模板代碼，修改好之後，保存，重啓 MyEclipse 2017 CI，使用MyEclipse創建Servlet，此時就是用剛纔修改過的模板進行生成了。
(注意：在 MyEclipse 10 安裝目錄下的 \Common\plugins文件夾 ，注意文件夾的不同哦！)
<aw:import> 表示的是要導入的包，
<aw:parentClass> 表示該servlet繼承的父類，
<aw:constructor 表示的是構造器，
<aw:method 表示的是方法的聲明，
新的 Servlet.java 文件中的內容如下：
#---------------------------------------------#
# <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">
public <aw:className/>() {
super();
}
</aw:constructor>
<aw:method name="doGet">
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
}
</aw:method>
<aw:method name="doPost">
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
doGet(request,response);
}
</aw:method>示例 XxxServlet.java 文件
1 package com.itheima.product.web.servlet;
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 PayOnlineServlet extends HttpServlet {
11
12 @Override
13 public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
14
15 }
16
17 @Override
18 public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
19 doGet(request, response);
20 }
21
22 }附上：舊的 Servlet.java 文件中的內容如下：
#---------------------------------------------#
# <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>具體操作如下圖所示：
