myeclipse 2017 CI 中如何修改Servlet模板

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:learnJavaMyEclipseMyEclipse 2017 CIplugins，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 Commonplugins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

package com.itheima.product.web.servlet;

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 PayOnlineServlet extends HttpServlet {

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

    }

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

}

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：