myeclipse 2017 CI 中如何修改Servlet模板
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 2017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 2017 CI 安装目录下的 plugins 文件夹，比如我的：D:\learn\Java\MyEclipse\MyEclipse 2017 CI\plugins，然后找到 com.genuitec.eclipse.wizards_13.0.0.me201612231634.jar 这个jar文件，
打开 com.genuitec.eclipse.wizards_13.0.0.me201612231634.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。
修改里面的代码：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 2017 CI，使用MyEclipse创建Servlet，此时就是用刚才修改过的模板进行生成了。
(注意：在 MyEclipse 10 安装目录下的 \Common\plugins文件夹 ，注意文件夹的不同哦！)
<aw:import> 表示的是要导入的包，
<aw:parentClass> 表示该servlet继承的父类，
<aw:constructor 表示的是构造器，
<aw:method 表示的是方法的声明，
新的 Servlet.java 文件中的内容如下：
#---------------------------------------------#
# <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
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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 }
XxxServlet.java
附上：旧的 Servlet.java 文件中的内容如下：
#---------------------------------------------#
# <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>
具体操作如下图所示：
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