Docker学习 -- 使用Docker 的Dockerfile构建tomcat容器，在线部署web项目

一、.使用ieda 创建一个webapp 工程 如下图：



二、加入spring mvc 等一下依赖包，配置等，如下：
1. 工程结构如下：



2. pom.xml 文件完整如 
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd"> <modelVersion>4.0.0</modelVersion>
<groupId>com.harris.app</groupId>
<artifactId>tomcatci</artifactId>
<packaging>war</packaging>
<version>1.0-SNAPSHOT</version>
<name>tomcatci Maven Webapp</name>
<url>http://maven.apache.org</url>
<properties>
<!-- spring版本号 -->
<spring.version>4.0.2.RELEASE</spring.version>
</properties>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<!-- 表示开发的时候引入，发布的时候不会加载此包 -->
<scope>test</scope>
</dependency>
<!-- spring核心包 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-oxm</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aop</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- 导入java ee jar 包 -->
<dependency>
<groupId>javax</groupId>
<artifactId>javaee-api</artifactId>
<version>7.0</version>
</dependency>
<!-- JSTL标签类 -->
<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<!-- 映入JSON -->
<dependency>
<groupId>org.codehaus.jackson</groupId>
<artifactId>jackson-mapper-asl</artifactId>
<version>1.9.13</version>
</dependency>
<!-- 上传组件包 -->
<dependency>
<groupId>commons-fileupload</groupId>
<artifactId>commons-fileupload</artifactId>
<version>1.3.1</version>
</dependency>
<dependency>
<groupId>commons-io</groupId>
<artifactId>commons-io</artifactId>
<version>2.4</version>
</dependency>
<dependency>
<groupId>commons-codec</groupId>
<artifactId>commons-codec</artifactId>
<version>1.9</version>
</dependency>
</dependencies>
<build>
<finalName>${project.artifactId}</finalName>

<resources>
<resource>
<directory>src/main/java</directory>
<includes>
<include>**/*.properties</include>
<include>**/*.xml</include>
</includes>
<!-- 是否替换资源中的属性-->
<filtering>false</filtering>
</resource>
<resource>
<directory>src/main/resources</directory>
</resource>
</resources>
<plugins>
<plugin>
<groupId>org.apache.tomcat.maven</groupId>
<artifactId>tomcat7-maven-plugin</artifactId>
<version>2.2</version>
<configuration>
<url>http://10.11.3.135:8080/manager/text</url>
<server>tomcat7</server>
<path>/${project.artifactId}</path>
<update>true</update>
</configuration>
</plugin>
</plugins>
</build>
</project>
以上需要注意是在加入的maven 的插件处的url 地址ip为虚机的ip，server处的tomcat7要与下面在maven中配置的server要一样
3. spring-mvc.xml完整文件如下：
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd">
<!--避免IE执行AJAX时，返回JSON出现下载文件 -->
<bean id="mappingJacksonHttpMessageConverter"
class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter">
<property name="supportedMediaTypes">
<list>
<value>text/html;charset=UTF-8</value>
</list>
</property>
</bean>

<!-- 启动SpringMVC的注解功能，完成请求和注解POJO的映射 -->
<bean
class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
<property name="messageConverters">
<list>
<!-- JSON转换器 -->
<ref bean="mappingJacksonHttpMessageConverter" />
</list>
</property>
</bean>

<!-- 对静态资源的访问 -->
<!-- <mvc:resources mapping="/js/**" location="/js/" /><mvc:resources mapping="/css/**"
location="/css/" /> -->

<!-- 自动扫描该包，使SpringMVC认为包下用了@controller注解的类是控制器 -->
<context:component-scan base-package="com.harris.app.controller" />

<!-- 添加注解驱动 -->
<mvc:annotation-driven enable-matrix-variables="true" />
<!-- 允许对静态资源文件的访问 -->

<mvc:default-servlet-handler />

<!-- 定义跳转的文件的前后缀 ，视图模式配置 -->
<bean
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<!-- 这里的配置我的理解是自动给后面action的方法return的字符串加上前缀和后缀，变成一个 可用的url地址 -->
<property name="prefix" value="/WEB-INF/jsp/" />
<property name="suffix" value=".jsp" />
</bean>

<!-- 配置文件上传，如果没有使用文件上传可以不用配置，当然如果不配，那么配置文件中也不必引入上传组件包 -->
<bean id="multipartResolver"
class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
<!-- 默认编码 -->
<property name="defaultEncoding" value="utf-8" />
<!-- 文件大小最大值 -->
<property name="maxUploadSize" value="10485760000" />
<!-- 内存中的最大值 -->
<property name="maxInMemorySize" value="40960" />
</bean>
</beans>4.spring-mybatis.xml 完整文件如下：

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd"> <!-- 自动扫描 -->
<context:component-scan base-package="com.harris" />
</beans>

5.web.xml 完整文件如下：
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://java.sun.com/xml/ns/javaee"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" version="3.0">
<!-- Spring和mybatis的配置文件 -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring-mybatis.xml</param-value>
</context-param>

<!-- 编码过滤器 -->
<filter>
<filter-name>encodingFilter</filter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
<async-supported>true</async-supported>
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>encodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>

<!-- Spring监听器 -->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>

<!-- 防止Spring内存溢出监听器 -->
<listener>
<listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class>
</listener>

<!-- Spring MVC servlet -->
<servlet>
<servlet-name>SpringMVC</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring-mvc.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
<async-supported>true</async-supported>
</servlet>
<servlet-mapping>
<servlet-name>SpringMVC</servlet-name>
<!-- 此处可以可以配置成*.do，对应struts的后缀习惯 -->
<url-pattern>/</url-pattern>
</servlet-mapping>

<welcome-file-list>
<welcome-file>/index.html</welcome-file>
<welcome-file>/index.jsp</welcome-file>
</welcome-file-list>
</web-app>6.HelloController.java 完整文件如下：
package com.harris.app.controller;

import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;

import javax.servlet.http.HttpServletRequest;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Map;

@Controller
public class HelloController {

private static SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");

@RequestMapping("/hello")
public String toIndex(HttpServletRequest request, Model model) {
String name = request.getParameter("name");
model.addAttribute("name", name);
model.addAttribute("time", sdf.format(new Date()));
Map<String, String> map = System.getenv();
model.addAttribute("serviceSource", map.get("TOMCAT_SERVER_ID"));
return "hello";
}
}7.　hello.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<META HTTP-EQUIV="Pragma" CONTENT="no-cache">
<META HTTP-EQUIV="Cache-Control" CONTENT="no-cache">
<META HTTP-EQUIV="Expires" CONTENT="0">
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Hello</title>
<style>
.importentspan{
color:#00F;
}
</style>
</head>
<body>您好${name}，这是来自<span class="importentspan">${serviceSource}</span>的问候！${time}
</body>
</html>三、 设置maven ，在你的maven安装目录conf中的settings.xml中，在servers中加入以下内容<server>
<id>tomcat7</id>
<username>harris</username>
<password>123456</password>
</server>四、先来到你的虚拟机中,先下载一个包含了jdk8的tomcat7.077镜像docker pull tomcat:7.0.77-jre8 2. 从其它的tomcat安装文件中复制两个文件到一个目录下，我这为 /cloud/tomcatci ，两个文件为server.xml, tomcat-user.xml


 
3.修改server.xml 
 


此处加入URIEncoding="UTF-8",保存
4. 修改tomcat-user.xml,加入用户和角色



这里的username 和password和你maven中加入的server 中的一样，保存
5.这里开始制作tomcat镜像，先创建一个Dockerfile文件，内容如下：#基础镜像
FROM tomcat:7.0.77-jre8

#作者
MAINTAINER test

#定义工作目录
ENV WORK_PATH /usr/local/tomcat/conf

#定义要替换的文件名
ENV USER_CONF_FILE_NAME tomcat-users.xml

#定义要替换的server.xml文件名
ENV SERVER_CONF_FILE_NAME server.xml

#删除原文件tomcat-users.xml
RUN rm $WORK_PATH/$USER_CONF_FILE_NAME

#复制文件tomcat-users.xml
COPY ./$USER_CONF_FILE_NAME $WORK_PATH/

#删除原文件server.xml
RUN rm $WORK_PATH/$SERVER_CONF_FILE_NAME

#复制文件server.xml
COPY ./$SERVER_CONF_FILE_NAME $WORK_PATH/6. cd 到/cloud/tomcatci目录下 ，一共有三个文件 Dockerfile,server.xml,tomcat-user.xml，执行以下命令，构建镜像：docker build -t tomcatci .7. 启动一个tomcat实例docker run --name=tomcat001 -p 8080:8080 -e TOMCAT_SERVER_ID=tomcat_server_001 -idt tomcatci启动完后，可以在浏览中访问http://10.11.3.135:8080 ,就可以看到tomcat的界面



8.发布工程到tomcat中，打开命令行界面,切换到你工程目录，执行maven的构建命令，前题你得将maven加入到系统环境变量中mvn clean package -U -Dmaven.test.skip=true tomcat7:redeploy
看到打包成包后 ,进入到你tomcat中的Manager App 中就会看你的工程名称



再次访问http://10.11.3.135:8080/tomcatci/hello?name=test,就会看到以下界面：



可以再次修改工程内容，再次构建部署查看变化
参考引用： http://blog.csdn.net/boling_cavalry/article/details/70184605