浅谈IDEA实用的Servlet模板
作者：neihan2021
今天给大家分享一下IDEA实用的Servlet模板,文中有非常详细的图文介绍及代码示例,对小伙伴们很有帮助哦,需要的朋友可以参考下
一、前言
二、这是模板内容,直接创建自己的模板复制用即可
#if (${PACKAGE_NAME} && ${PACKAGE_NAME} != "")package ${PACKAGE_NAME};#end
#parse("File Header.java")
#set( $packageName1 = "#if (${PACKAGE_NAME} && ${PACKAGE_NAME} != '')${PACKAGE_NAME}.#end#parse('File Header.java')" )
#set( $packageName2 = "#if (${PACKAGE_NAME} && ${PACKAGE_NAME} != '')${PACKAGE_NAME}/#end#parse('File Header.java')" )
import javax.servlet.*;
import javax.servlet.http.*;
import javax.servlet.annotation.*;
import java.io.IOException;
import java.io.PrintWriter;
/**
* @auther LiuWeirui
* @date ${DATE} ${TIME}
*/
//更改@WebServlet中value的值,可以修改访问该Servlet文件的名称,规范value = "/visit name"
@WebServlet(name = "${NAME}", value = "/${NAME}")
public class ${NAME} extends HttpServlet {
/**
* Constructor of the object.
*/
public ${NAME}() {
super();
}
/**
* Destruction of the servlet. <br>
*/
public void destroy() {
super.destroy(); // Just puts "destroy" string in log
// Put your code here
}
/**
* The doGet method of the servlet. <br>
* <p>
* This method is called when a form has its tag value method equals to get.
*
* @param request the request send by the client to the server
* @param response the response send by the server to the client
* @throws ServletException if an error occurred
* @throws IOException if an error occurred
*/
public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
doPost(request, response);
}
/**
* The doPost method of the servlet. <br>
* <p>
* This method is called when a form has its tag value method equals to post.
*
* @param request the request send by the client to the server
* @param response the response send by the server to the client
* @throws ServletException if an error occurred
* @throws IOException if an error occurred
*/
public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
//设置请求和响应数据的编码
request.setCharacterEncoding("UTF-8");
response.setCharacterEncoding("UTF-8");
response.setContentType("text/html;charset=UTF-8");
PrintWriter out = response.getWriter();
//页面内容
out.println("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">");
out.println("<HTML>");
out.println(" <HEAD><TITLE>A Servlet</TITLE></HEAD>");
out.println(" <BODY>");
out.print(" This is ");
out.print(this.getClass());
out.println(", using the POST method");
out.println(" </BODY>");
out.println("</HTML>");
out.flush();
out.close();
}
/**
* Initialization of the servlet. <br>
*
* @throws ServletException if an error occurs
*/
public void init() throws ServletException {
// Put your code here
}
/**
* web.xml配置文件书写
* <servlet>
* <servlet-name>${NAME}</servlet-name>
* <servlet-class>$packageName1${NAME}</servlet-class>
* </servlet>
* <servlet-mapping>
* <servlet-name>${NAME}</servlet-name>
* <url-pattern>/$packageName2${NAME}</url-pattern>
* </servlet-mapping>
*/
}
三、优点
1.设置好的请求和响应数据的编码
2.处理好的doGet()和doPost()方法
3.记录日期和创建者(创建者自己改,这里我用的本人的)
4.导入好的包和设置好的包名
5.设置好的@WebServlet属性,设置@WebServlet属性可以替代配置web.xml
6.设置好的配置web.xml文件的内容,复制好即可用
四、问题
web配置文件的内容有些问题,如图:
这是正常情况,在包下创建文件
这是缺省状态下创建的文件
<servlet-class>的内容在缺省状态下会出现PACKAGE_NAME.,这是以下这段代码导致的问题
#if (${PACKAGE_NAME} && ${PACKAGE_NAME} != '')${PACKAGE_NAME}.#end#parse('File Header.java')
这段代码貌似不能出现在注释内容里,不然就会出问题,在包中创建正常显示,但在缺省状态下就会显示PACKAGE_NAME
使用前还需自己修改
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