IDEA community + Gradle + Gretty 调试 servlet 应用 + war包部署到tomcat
参考:https://guides.gradle.org/building-java-web-applications
1.运行和调试
IDEA创建gradle项目,项目结构如下
各个文件:
build.gradle
// https://guides.gradle.org/building-java-web-applications
plugins {
id 'java'
id 'war'
id 'org.akhikhl.gretty' version '1.4.2'
} group 'ServletDemo'
version '1.0-SNAPSHOT' sourceCompatibility = 1.8 repositories {
mavenCentral()
} dependencies {
// https://mvnrepository.com/artifact/javax.servlet/javax.servlet-api
providedCompile group: 'javax.servlet', name: 'javax.servlet-api', version: '3.1.0'
testCompile group: 'junit', name: 'junit', version: '4.12'
}
HelloServlet.java
package servlets; import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException; @WebServlet(name = "HelloServlet", urlPatterns = {"hello"}, loadOnStartup = 1)
public class HelloServlet extends HttpServlet {
int i = 0; // Servlet "persistence" protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws IOException {
response.getWriter().print("Hello, World! " + i++);
} protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
String name = request.getParameter("name");
if (name == null) name = "World";
request.setAttribute("user", name);
request.getRequestDispatcher("response.jsp").forward(request, response);
}
} ///:~
index.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Servlet Demo</title>
</head>
<body>
<p>Say <a href="hello">Hello</a></p>
<form method="post" action="hello">
<h2>Name:</h2>
<input type="text" id="say-hello-text-input" name="name" />
<input type="submit" id="say-hello-button" value="Say Hello" />
</form>
</body>
</html>
response.jsp
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>Hello Page</title>
</head>
<body>
<h2>Hello, ${user}!</h2>
</body>
</html>
然后点击左侧的Gradle面板,选择任务gretty.appRun就可以启动app,通过localhost:8080访问
如果要 调试,那么在Gradle面板中选择任务gretty.appRunDebug,启动该任务后,选择Run->Edit Configurations 然后添加一个Remote Run/Debug,如下图,名为DebugServletDemo,根据gretty官方文档,默认debug port是5005,所以这里填好host和port
然后在Gradle面板中启动任务gretty.appRunDebug,如下图Run选项卡中所示,在5005端口等待Debugger的连接
接下来再启动Run->Debug->DebugServletDemo,如下图Debug选项卡中所示,Debugger已连接上5005端口
此时再次查看Run选项卡,会发现其中内容如下,点击该http链接开始调试
2.部署到tomcat
2.1. 打包war只需要Gradle面板中选择build.build任务即可,然后把war包放到tomcat安装目录的webapps/目录下,这里我的war包名为ServletDemo-1.0-SNAPSHOT.war
2.2. 修改tomcat安装目录下的conf/tomcat-users.xml,如下内容,从而可以使用tomcat的管理权限
<?xml version="1.0" encoding="UTF-8"?>
<!--
Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements. See the NOTICE file distributed with
this work for additional information regarding copyright ownership.
The ASF licenses this file to You under the Apache License, Version 2.0
(the "License"); you may not use this file except in compliance with
the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<tomcat-users xmlns="http://tomcat.apache.org/xml"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://tomcat.apache.org/xml tomcat-users.xsd"
version="1.0">
<!--
NOTE: By default, no user is included in the "manager-gui" role required
to operate the "/manager/html" web application. If you wish to use this app,
you must define such a user - the username and password are arbitrary. It is
strongly recommended that you do NOT use one of the users in the commented out
section below since they are intended for use with the examples web
application.
-->
<!--
NOTE: The sample user and role entries below are intended for use with the
examples web application. They are wrapped in a comment and thus are ignored
when reading this file. If you wish to configure these users for use with the
examples web application, do not forget to remove the <!.. ..> that surrounds
them. You will also need to set the passwords to something appropriate.
-->
<!--
<role rolename="tomcat"/>
<role rolename="role1"/>
<user username="tomcat" password="<must-be-changed>" roles="tomcat"/>
<user username="both" password="<must-be-changed>" roles="tomcat,role1"/>
<user username="role1" password="<must-be-changed>" roles="role1"/>
-->
<role rolename="manager-gui"/>
<user username="admin" password="1qaz2WSX" roles="manager-gui"/>
</tomcat-users>
2.3. 启动tomcat,访问localhost:8080,如下:
2.4. 点击"Manager App"按钮,进入如下页面,然后start ServletDemo-1.0-SNAPSHOT即可访问
2.4.1. 这里我发现war包的app不能启动,在tomcat的logs/manager.2018.xx.xx.log中发现报错Invalid <url-pattern> [hello] in servlet mapping,去HelloServlet.java中把urlPatterns="hello"改为urlPatterns="/hello"即可}改为
IDEA community + Gradle + Gretty 调试 servlet 应用 + war包部署到tomcat的更多相关文章
- SpringBoot之打成war包部署到Tomcat
正常情况下SpringBoot项目是以jar包的形式,正常情况下SpringBoot项目是以jar包的形式,并且SpringBoot是内嵌Tomcat服务器,所以每次重新启动都是用的新的Tomcat服 ...
- 将Web项目War包部署到Tomcat服务器
1. 配置Java运行环境 1.1 下载并安装JDK 从官网上下载最新的JDK:http://java.sun.com/javase/downloads/index.jsp ,下载后安装,选择想把JD ...
- 将web项目打成war包部署在tomcat步骤
将web项目打成war包部署在tomcat步骤 1.将自己的项目打成war包. 2.将打包好的war复制到${tomcat.home}/webapps项目下. 3.在${tomcat.hom}/con ...
- IntelliJ IDEA打包WAR并部署运行(mac osx)将Web项目War包部署到Tomcat服务器基本步骤（完整版）
用IntelliJ IDEA做web开发体验很好,但导出war包比eclipse麻烦了不少,以下是解决方案: 打包:1.自动打包:File —> Project Structure —> ...
- 将Web项目War包部署到Tomcat服务器基本步骤
参考来源: http://www.cnblogs.com/pannysp/archive/2012/03/07/2383364.html 1. 常识: 1.1 War包 War包一般是在进行Web ...
- 将Web项目War包部署到Tomcat服务器基本步骤（完整版）
1. 常识: 1.1 War包 War包一般是在进行Web开发时,通常是一个网站Project下的所有源码的集合,里面包含前台HTML/CSS/JS的代码,也包含Java的代码. 当开发人员在自己 ...
- war包部署到tomcat
1.maven web app打包成app.war.打包命令:mvn clean package Dmaven.test.skip=true war 是什么?里面有什么东西?a.web.app所有必 ...
- Spring Boot Jar包转War包 部署到Tomcat下
原文:https://my.oschina.net/sdlvzg/blog/1562998 我们都知道springBoot中已经内置了tomcat,是不需要我们额外的配置tomcat服务器的,但是有时 ...
- Springboot-技术专区-war包部署在Tomcat上并修改默认端口
springboot项目内置Tomcat,直接打成jar包在dos下运行即可,但有时我们需要用war包以非内嵌Tomcat的方式来部署,以下是本人的实际经验 1.首先需要修改pom.xml文件 < ...
随机推荐
- JavaScript踩坑
1 //这样做会抛出错误 alert(ttt); //这样做不会,只是会弹出undefine而已 alert(window.ttt); 当然可以try catch如此捕获异常 try { //这样做会 ...
- 基于Two.js实现的一个小demo，星球环绕动画效果
下面是核心js code HTML就不贴了,需要引入two.js文件: var elem = document.getElementById('draw-animation'); var two = ...
- 11-22 JS中级复习
1.this js的关键字, 用途:指向某一个对象. 如何判断this指向 函数(方法)内 一种以函数的方式调用(不带.) this指向winodw 一种以方法的形式调用(函数名前面带.)this指向 ...
- Oracle中 (+)与left join 的用法区别
Oracle中 (+)与left join 的用法区别 原创 2017年01月11日 13:33:42 6648 select * from a,b where a.id=b.id(+); (+)写在 ...
- 【模拟】[NOIP2014]螺旋矩阵[c++]
题目描述 一个n行n列的螺旋矩阵可由如下方法生成: 从矩阵的左上角(第1行第1列)出发,初始时向右移动:如果前方是未曾经过的格子,则继续前进,否则右转:重复上述操作直至经过矩阵中所有格子.根据经过顺序 ...
- GMA Round 1 奇怪的数列
传送门 奇怪的数列 已知数列{$a_n$},$a_1=1$,$a_{n+1}=a_n+\frac{1}{a_n}$,现在需要你估计$a_{233333}$的值,求出它的整数部分即可. 将原等式两边平方 ...
- Hibernate(3)配置文件hibernate.cfg.xml
5.配置文件 Hibernate 配置文件主要用于配置数据库连接和 Hibernate 运行时所需的各种属性,每个 Hibernate 配置文件对应一个 Configuration 对象 Hibern ...
- hdu1171 Big Event in HDU(多重背包)
http://acm.hdu.edu.cn/showproblem.php?pid=1171 多重背包题目不难,但是有些点不能漏或错. #include<iostream> #includ ...
- C#实现无物理边距 可打印区域的绘图\打印 z
经常在开发实际的应用程序中,需要用到图形绘制和打印程序.如何实现完整的精确打印和绘图是需要注意许多细节地方的.最近在遇到打印问题的时候,仔细研究一阵,总结这篇博文,写得有点杂乱,看文要还请费点神. 基 ...
- Python学习笔记：Flask-Migrate基于model做upgrade的基本原理
1)flask-migrate的官网:https://flask-migrate.readthedocs.io/en/latest/ 2)获取帮助,在pycharm的控制台中输入 flask d ...