commons cli 基本使用
参考资料
官网: https://commons.apache.org/proper/commons-cli/
一个入门 Hello World
pom
<?xml version="1.0" encoding="UTF-8"?>
<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/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.laolang.graver</groupId>
<artifactId>graver-cool-java8</artifactId>
<version>0.1</version>
<properties>
<maven.compiler.source>8</maven.compiler.source>
<maven.compiler.target>8</maven.compiler.target>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
<maven-compiler-plugin.version>3.11.0</maven-compiler-plugin.version>
<springboot.version>2.2.13.RELEASE</springboot.version>
<commons-cli.version>1.8.0</commons-cli.version>
<!-- test -->
<testng.version>6.14.3</testng.version>
<!-- log4j2 -->
<log4j2.version>2.22.0</log4j2.version>
<!-- tool -->
<lombok.version>1.18.16</lombok.version>
<hutool.version>5.8.11</hutool.version>
<vavr.version>0.10.4</vavr.version>
<mapstruct.version>1.4.2.Final</mapstruct.version>
<guava.version>23.0</guava.version>
<okhttp.version>4.9.0</okhttp.version>
</properties>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-dependencies</artifactId>
<version>${springboot.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<!-- testng -->
<dependency>
<groupId>org.testng</groupId>
<artifactId>testng</artifactId>
<version>${testng.version}</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-log4j2</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
<exclusions>
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-logging</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-configuration-processor</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>commons-cli</groupId>
<artifactId>commons-cli</artifactId>
<version>${commons-cli.version}</version>
</dependency>
<!-- tool -->
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
</dependency>
<dependency>
<groupId>com.squareup.okhttp3</groupId>
<artifactId>okhttp</artifactId>
</dependency>
<dependency>
<groupId>cn.hutool</groupId>
<artifactId>hutool-all</artifactId>
<version>${hutool.version}</version>
</dependency>
<dependency>
<groupId>io.vavr</groupId>
<artifactId>vavr</artifactId>
<version>${vavr.version}</version>
</dependency>
<dependency>
<groupId>org.mapstruct</groupId>
<artifactId>mapstruct</artifactId>
<version>${mapstruct.version}</version>
</dependency>
<dependency>
<groupId>org.mapstruct</groupId>
<artifactId>mapstruct-jdk8</artifactId>
<version>${mapstruct.version}</version>
</dependency>
<dependency>
<groupId>org.mapstruct</groupId>
<artifactId>mapstruct-processor</artifactId>
<version>${mapstruct.version}</version>
</dependency>
<dependency>
<groupId>com.google.guava</groupId>
<artifactId>guava</artifactId>
<version>${guava.version}</version>
</dependency>
</dependencies>
<build>
<finalName>${project.artifactId}</finalName>
<resources>
<resource>
<directory>src/main/resources/</directory>
<filtering>true</filtering>
</resource>
</resources>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>${maven-compiler-plugin.version}</version>
<configuration>
<source>${maven.compiler.source}</source>
<target>${maven.compiler.target}</target>
<encoding>${project.build.sourceEncoding}</encoding>
</configuration>
</plugin>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<version>${springboot.version}</version>
<executions>
<execution>
<goals>
<goal>repackage</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
<repositories>
<repository>
<id>public</id>
<name>aliyun nexus</name>
<url>https://maven.aliyun.com/repository/public</url>
<releases>
<enabled>true</enabled>
</releases>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>public</id>
<name>aliyun nexus</name>
<url>https://maven.aliyun.com/repository/public</url>
<releases>
<enabled>true</enabled>
</releases>
<snapshots>
<enabled>false</enabled>
</snapshots>
</pluginRepository>
</pluginRepositories>
</project>
java
package com.laolang.graver;
import cn.hutool.core.util.ArrayUtil;
import cn.hutool.core.util.StrUtil;
import com.laolang.graver.config.graver.GraverConfig;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.cli.CommandLine;
import org.apache.commons.cli.DefaultParser;
import org.apache.commons.cli.HelpFormatter;
import org.apache.commons.cli.Option;
import org.apache.commons.cli.Options;
import org.apache.commons.cli.ParseException;
import org.apache.commons.lang3.exception.ExceptionUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.CommandLineRunner;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@Slf4j
@SpringBootApplication
public class GraverApplication implements CommandLineRunner {
@Autowired
private GraverConfig graverConfig;
public static void main(String[] args) {
SpringApplication.run(GraverApplication.class, args);
}
@Override
public void run(String... args) throws Exception {
log.info("graver is running...");
Options options = new Options();
// 版本信息
Option versionOpt = new Option("v", "version", false, "显示版本信息");
options.addOption(versionOpt);
// 帮助信息
Option helpOpt = new Option("h", "help", false, "打印帮助信息");
options.addOption(helpOpt);
DefaultParser parser = new DefaultParser();
HelpFormatter helpFormatter = new HelpFormatter();
try {
CommandLine command = parser.parse(options, args);
if (ArrayUtil.isEmpty(args) || command.hasOption(helpOpt)) {
helpFormatter.printHelp("使用文档", options);
}
if (command.hasOption(versionOpt)) {
System.out.println(StrUtil.format("version: {}", graverConfig.getVersion()));
}
} catch (ParseException e) {
log.error("error:{}", ExceptionUtils.getMessage(e));
}
}
}
效果
laolang@laolang-pc:target$ java -jar graver-cool-java8.jar
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v2.2.13.RELEASE)
usage: 使用文档
-h,--help 打印帮助信息
-v,--version 显示版本信息
laolang@laolang-pc:target$ java -jar graver-cool-java8.jar -v
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v2.2.13.RELEASE)
version: 0.1
laolang@laolang-pc:target$ java -jar graver-cool-java8.jar --help
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v2.2.13.RELEASE)
usage: 使用文档
-h,--help 打印帮助信息
-v,--version 显示版本信息
laolang@laolang-pc:target$
