一、需求概述
普通Java工程 docker-show 实现了定时打印docker应用信息，现在需要将其打包成可执行Jar部署到服务器端运行。
打包方式分为2种：
- 一体化可执行包
- 带外部依赖lib的可执行包
二、代码结构
三、运行结果
此项目使用了线程池定时打印docker应用名，端口信息
四、打包设置
1. 一体化可执行包
pom文件中引入 maven-assembly-plugin插件，核心配置
maven-assembly-plugin3.5.0falsecom.fly.simple.MainRunjar-with-dependenciesmake-assemblypackagesingle
2. 带外部依赖lib的可执行包
pom文件中引入 maven-dependency-plugin、maven-jar-plugin插件，核心配置
org.apache.maven.pluginsmaven-dependency-plugin3.1.2copy-dependenciespackagecopy-dependencies${project.build.directory}/liblombokruntimeorg.apache.maven.pluginsmaven-jar-plugin3.2.0truelibcom.fly.simple.MainRun./
五、打包运行
1. 源码放送
https://gitcode.com/00fly/demo
git clone https://gitcode.com/00fly/demo.git
或者使用下面的备份文件恢复成原始的项目代码
如何恢复，请移步查阅：神奇代码恢复工具
//goto pom-deps.xml
4.0.0com.flydocker-show0.0.1java-dependhttp://maven.apache.orgjarUTF-8UTF-81.8org.apache.logging.log4jlog4j-slf4j-impl2.12.1org.apache.commonscommons-lang33.5org.projectlomboklombok1.18.12provided${project.artifactId}org.apache.maven.pluginsmaven-compiler-plugin3.8.11.81.8maven-assembly-plugin3.5.0falsecom.fly.simple.MainRunjar-with-dependenciesmake-assemblypackagesingle
//goto pom-lib.xml
4.0.0com.flydocker-show0.0.1java-dependhttp://maven.apache.orgjarUTF-8UTF-81.8org.apache.logging.log4jlog4j-slf4j-impl2.12.1org.apache.commonscommons-lang33.5org.projectlomboklombok1.18.12provided${project.artifactId}org.apache.maven.pluginsmaven-compiler-plugin3.8.11.81.8org.apache.maven.pluginsmaven-dependency-plugin3.1.2copy-dependenciespackagecopy-dependencies${project.build.directory}/liblombokruntimeorg.apache.maven.pluginsmaven-jar-plugin3.2.0truelibcom.fly.simple.MainRun./
//goto pom.xml
4.0.0com.flydocker-show0.0.1java-dependhttp://maven.apache.orgjarUTF-8UTF-81.8org.apache.logging.log4jlog4j-slf4j-impl2.12.1org.apache.commonscommons-lang33.5org.projectlomboklombok1.18.12provided${project.artifactId}org.apache.maven.pluginsmaven-compiler-plugin3.8.11.81.8maven-assembly-plugin3.5.0truecom.fly.simple.MainRunjar-with-dependenciesmake-assemblypackagesingleorg.apache.maven.pluginsmaven-dependency-plugin3.1.2copy-dependenciespackagecopy-dependencies${project.build.directory}/liblombokruntimeorg.apache.maven.pluginsmaven-jar-plugin3.2.0truelibcom.fly.simple.MainRun./
//goto srcmainjavacomflysimpleExecutor.java
package com.fly.simple;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.TreeMap;
import java.util.stream.Collectors;
import java.util.stream.Stream;
import org.apache.commons.lang3.StringUtils;
import org.apache.commons.lang3.SystemUtils;
import lombok.extern.slf4j.Slf4j;
@Slf4j
public class Executor
{
private static String DOCKER_PS_CMD = "docker ps --format "{{.Names}} {{.Ports}}"";
/**
* execute命令
*
* @param command
* @throws IOException
* @see [类、类#方法、类#成员]
*/
public static List execute(String command)
throws IOException
{
List resultList = new ArrayList();
String[] cmd = SystemUtils.IS_OS_WINDOWS ? new String[] {"cmd", "/c", command} : new String[] {"/bin/sh", "-c", command};
Process ps = Runtime.getRuntime().exec(cmd);
try (InputStream in = ps.getInputStream(); BufferedReader br = new BufferedReader(new InputStreamReader(in)))
{
String line;
while ((line = br.readLine()) != null)
{
resultList.add(line);
}
}
return resultList;
}
/**
* 获取docker相关信息
*
* @throws IOException
*/
@Deprecated
public static void printPorts1()
throws IOException
{
Map> map = new TreeMap();
for (String line : execute(DOCKER_PS_CMD))
{
log.info("{}", line);
String name = StringUtils.substringBefore(line, " ");
Set ports =
Stream.of(StringUtils.substringAfter(line, " ").split(",")).map(p -> StringUtils.substringBetween(p, ":", "->")).filter(StringUtils::isNotBlank).map(p -> p.replace(":", "")).sorted().collect(Collectors.toSet());
map.put(name, ports);
}
log.info("######## {}", map);
}
/**
* 获取docker相关信息
*
* @throws IOException
*/
public static void printPorts()
throws IOException
{
Map> map = new TreeMap();
execute(DOCKER_PS_CMD).stream()
.map(line -> Collections.singletonMap(StringUtils.substringBefore(line, " "),
Stream.of(StringUtils.substringAfter(line, " ").split(",")).map(p -> StringUtils.substringBetween(p, ":", "->")).filter(StringUtils::isNotBlank).map(p -> p.replace(":", "")).sorted().collect(Collectors.toSet())))
.forEach(it -> map.putAll(it));
log.info("######## {}", map);
}
}
//goto srcmainjavacomflysimpleMainRun.java
package com.fly.simple;
import java.io.IOException;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.ScheduledThreadPoolExecutor;
import java.util.concurrent.TimeUnit;
public class MainRun
{
/**
* 线程池保证程序一直运行
*
* @param args
*/
public static void main(String[] args)
{
ScheduledExecutorService service = new ScheduledThreadPoolExecutor(1);
service.scheduleAtFixedRate(() -> {
try
{
Executor.printPorts();
}
catch (IOException e)
{
e.printStackTrace();
}
}, 2, 10, TimeUnit.SECONDS);
}
}
//goto srcmainresourceslog4j2.xml
2. 打包执行
#完整打包 mvn clean package #一体化可执行包 mvn clean package -f pom-deps.xml #带外部依赖lib的可执行包 mvn clean package -f pom-lib.xml
3. 打包结果
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