发布自己的jar包到中央仓库的好处：

1. 省去自建maven私服
2. 方便自己或者别个在他处引用jar包

注册 sonatype的Jira 帐号

注册地址: https://issues.sonatype.org/secure/Signup!default.jspa
注册很简单,重要的是邮箱地址一定要正确,issue有任何变动都会通过邮件通知.

登录Jira

注册完成后就登录: https://issues.sonatype.org/login.jsp

创建一个 Issue

创建地址: https://issues.sonatype.org/secure/CreateIssue.jspa?issuetype=21&pid=10134

使用 GPG 生成密钥对

1. 查看gpg安装版本

   gpg --version
   

2. 生成密钥对

3. 查看公钥

   gpg --list-keys
   

4. 将公钥发布到 PGP 密钥服务器

   gpg --keyserver hkp://pool.sks-keyservers.net --send-keys 你的公钥指纹
   

修改maven的setting.xml文件

<server>
      <id>oss</id>
      <username>sonatype.org的用户名</username>
      <password>sonatype.org的密码</password>
    </server>
    
<profile>
       <id>gpg</id>
       <properties>
          <gpg.executable>gpg</gpg.executable>
          <gpg.keyname>公钥</gpg.keyname>
          <gpg.passphrase>gpg的passphrase</gpg.passphrase>
       </properties>
    </profile>
    
<activeProfiles>
    <activeProfile>gpg</activeProfile>
  </activeProfiles>

修改pom.xml文件

<?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>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.0.2.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>

    <groupId>com.github.caijh</groupId>
    <artifactId>service-parent</artifactId>
    <version>1.0.0-SNAPSHOT</version>
    <packaging>pom</packaging>

    <properties>
        <!-- 文件拷贝时的编码 -->
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <!-- 编译时的编码 -->
        <maven.compiler.encoding>UTF-8</maven.compiler.encoding>
        <java.version>1.8</java.version>
        <spring-cloud.version>Finchley.RELEASE</spring-cloud.version>
    </properties>

    <licenses>
        <license>
            <name>The Apache Software License, Version 2.0</name>
            <url>http://www.apache.org/licenses/LICENSE-2.0.txt</url>
        </license>
    </licenses>
    <developers>
        <developer>
            <name>caijunhui</name>
            <email>caiqizhe@gmail.com</email>
        </developer>
    </developers>
    <scm>
        <connection>scm:git:git@github.com:caijh/service-parent.git</connection>
        <developerConnection>scm:git:git@github.com:caijh/service-parent.git</developerConnection>
        <url>git@github.com:caijh/service-parent.git</url>
    </scm>

    <dependencies>
        <dependency>
            <groupId>javax.xml.bind</groupId>
            <artifactId>jaxb-api</artifactId>
            <version>2.3.1</version>
        </dependency>
        <dependency>
            <groupId>com.sun.xml.bind</groupId>
            <artifactId>jaxb-core</artifactId>
            <version>2.3.0</version>
        </dependency>
        <dependency>
            <groupId>com.sun.xml.bind</groupId>
            <artifactId>jaxb-impl</artifactId>
            <version>2.3.1</version>
        </dependency>
        <dependency>
            <groupId>javax.activation</groupId>
            <artifactId>activation</artifactId>
            <version>1.1.1</version>
        </dependency>
        <dependency>
            <groupId>javax.inject</groupId>
            <artifactId>javax.inject</artifactId>
            <version>1</version>
        </dependency>
        <dependency>
            <groupId>org.javassist</groupId>
            <artifactId>javassist</artifactId>
            <version>3.25.0-GA</version>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-core</artifactId>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-annotations</artifactId>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
            <version>1.2.58</version>
        </dependency>
        <dependency>
            <groupId>com.google.code.findbugs</groupId>
            <artifactId>jsr305</artifactId>
            <version>3.0.2</version>
        </dependency>

    </dependencies>

    <profiles>
        <profile>
            <id>release</id>
            <build>
                <plugins>
                    <!-- Source -->
                    <plugin>
                        <groupId>org.apache.maven.plugins</groupId>
                        <artifactId>maven-source-plugin</artifactId>
                        <version>3.1.0</version>
                        <executions>
                            <execution>
                                <phase>package</phase>
                                <goals>
                                    <goal>jar-no-fork</goal>
                                </goals>
                            </execution>
                        </executions>
                    </plugin>
                    <!-- Javadoc -->
                    <plugin>
                        <groupId>org.apache.maven.plugins</groupId>
                        <artifactId>maven-javadoc-plugin</artifactId>
                        <version>3.1.0</version>
                        <configuration>
                            <show>private</show>
                            <nohelp>true</nohelp>
                            <charset>UTF-8</charset>
                            <encoding>UTF-8</encoding>
                            <docencoding>UTF-8</docencoding>
                            <additionalparam>-Xdoclint:none</additionalparam>  <!-- TODO 临时解决不规范的javadoc生成报错,后面要规范化后把这行去掉 -->
                        </configuration>
                        <executions>
                            <execution>
                                <phase>package</phase>
                                <goals>
                                    <goal>jar</goal>
                                </goals>
                            </execution>
                        </executions>
                    </plugin>
                    <!-- GPG -->
                    <plugin>
                        <groupId>org.apache.maven.plugins</groupId>
                        <artifactId>maven-gpg-plugin</artifactId>
                        <version>1.6</version>
                        <executions>
                            <execution>
                                <id>sign-artifacts</id>
                                <phase>verify</phase>
                                <goals>
                                    <goal>sign</goal>
                                </goals>
                                <configuration>
                                    <gpgArguments>
                                        <arg>--pinentry-mode</arg>
                                        <arg>loopback</arg>
                                    </gpgArguments>
                                </configuration>
                            </execution>
                        </executions>
                    </plugin>
                </plugins>
            </build>
            <distributionManagement>
                <snapshotRepository>
                    <id>oss</id>
                    <url>https://oss.sonatype.org/content/repositories/snapshots/</url>
                </snapshotRepository>
                <repository>
                    <id>oss</id>
                    <url>https://oss.sonatype.org/service/local/staging/deploy/maven2/</url>
                </repository>
            </distributionManagement>
        </profile>
    </profiles>


</project>

发布到OSS中

mvn clean deploy -P release

遇到的问题

1. maven-source-plugin等插件not found

2. execute gobal gpg error, 加入以下配置解决

   --pinentry-mode loopback