IDEA自定义Servlet、Filter、Listener模板

前言

模板的作用类似于框架，主要作用是提高开发效率，告别重复性的工作，我们可以通过在IDEA中自定义Servlet、Filter、Listener三者的模板，从此让IDEA能够自动生成Servlet、Filter、Listener，以此提高开发效率

1、自定义Servlt模板

• Step1：$File\to New$
  

• Step2：$Editor\to FileandCodeTemplates\to Other\to Web\to Javacodetemplates\to ServletAnnotatedClass.java$
  

  这是我用的Servlet模板：

  #if (${PACKAGE_NAME} && ${PACKAGE_NAME} != "")package ${PACKAGE_NAME};#end
  #parse("File Header.java")
  @javax.servlet.annotation.WebServlet("/${Entity_Name}")
  public class ${Class_Name} extends javax.servlet.http.HttpServlet {
      protected void doPost(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response) throws javax.servlet.ServletException, java.io.IOException {
      	this.doGet(request,response);
      }
      protected void doGet(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response) throws javax.servlet.ServletException, java.io.IOException {
         
      }
  }
  

• Step3：创建Servlet模板
  
  
  

创建成功O(∩_∩)O

2、自定义Filter、Listener模板

同理也可以配置Filter和Listener的模板：

这是我的Filter和Listener模板：

Filter模板：

#if (${PACKAGE_NAME} && ${PACKAGE_NAME} != "")package ${PACKAGE_NAME};#end
#parse("File Header.java")
@javax.servlet.annotation.WebFilter("")
public class ${Class_Name} implements javax.servlet.Filter {
    @Override
    public void destroy() {
    }
    @Override
    public void doFilter(javax.servlet.ServletRequest request, javax.servlet.ServletResponse response, javax.servlet.FilterChain chain) throws javax.servlet.ServletException, java.io.IOException {
        chain.doFilter(request, response);
    }
    @Override
    public void init(javax.servlet.FilterConfig config) throws javax.servlet.ServletException {

    }

}

Listener模板：

#if (${PACKAGE_NAME} && ${PACKAGE_NAME} != "")package ${PACKAGE_NAME};#end
#parse("File Header.java")
import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;
import javax.servlet.http.HttpSessionAttributeListener;
import javax.servlet.http.HttpSessionEvent;
import javax.servlet.http.HttpSessionListener;
import javax.servlet.http.HttpSessionBindingEvent;

@javax.servlet.annotation.WebListener()
public class ${Class_Name} implements ServletContextListener, 
    HttpSessionListener, HttpSessionAttributeListener {

    // Public constructor is required by servlet spec
    public ${Class_Name}() {}

    // -------------------------------------------------------
    // ServletContextListener implementation
    // -------------------------------------------------------
    @Override
    public void contextInitialized(ServletContextEvent sce) {
      /* This method is called when the servlet context is
         initialized(when the Web application is deployed). 
         You can initialize servlet context related data here.
      */ 
    }
    @Override
    public void contextDestroyed(ServletContextEvent sce) {
      /* This method is invoked when the Servlet Context 
         (the Web application) is undeployed or 
         Application Server shuts down.
      */
    }

    // -------------------------------------------------------
    // HttpSessionListener implementation
    // -------------------------------------------------------
    @Override
    public void sessionCreated(HttpSessionEvent se) {
      /* Session is created. */
    }
    @Override
    public void sessionDestroyed(HttpSessionEvent se) {
      /* Session is destroyed. */
    }

    // -------------------------------------------------------
    // HttpSessionAttributeListener implementation
    // -------------------------------------------------------
    @Override
    public void attributeAdded(HttpSessionBindingEvent sbe) {
      /* This method is called when an attribute 
         is added to a session.
      */
    }
    @Override
    public void attributeRemoved(HttpSessionBindingEvent sbe) {
      /* This method is called when an attribute
         is removed from a session.
      */
    }
    @Override
    public void attributeReplaced(HttpSessionBindingEvent sbe) {
      /* This method is invoked when an attibute
         is replaced in a session.
      */
    }
}

写在最后的话：

使用Servlet模板，能够更便捷地创建Servlet~~如果觉得对你有帮助对话，就帮博主点个赞吧b(￣▽￣)d

推荐阅读：

• JavaWeb三大组件：该文主包含对Java三大组件Servlet、Filter、Listener的基础概念和基本使用，能够带你快速上手三大组件