建立工單

1. 去https://issues.sonatype.org/secure/Dashboard.jspa新建一個賬號，登入後選擇Create Issue，選擇Community Support - Open Source Project Repository Hosting (OSSRH)以及New Project，其他按照你自己的專案情況填寫。
   
2. 釋出完後幾小時內會有工作人員問你是否有Group Id對應的那個域名的所有權，如果有的話就回復有（我一開始以為這是系統自動回覆，沒有管它，結果好幾天過後還是沒再回復過我…），然後就會得到Configuration has been prepared的回覆，這個時候就可以準備釋出了。如果自己沒有域名的話可以掛在開源的域名下面，例如com.github.flyzy2005，這樣一樣可以釋出。

生成金鑰

1. 我用的是windows，直接去https://www.gpg4win.org/download.html下載Gpg4win，安裝好後通過gpg --version，出現版本等資訊就安裝成功了。（如果是Linux，可以通過yum install gpg安裝）
   
2. 設定名字+郵箱，其他可以使用預設值，記住輸入的passphrase，後面部署會用到，這裡用參考文章裡的配圖：

$ gpg --gen-key
gpg (GnuPG) 1.4.19; Copyright (C) 2015 Free Software Foundation, Inc.
This is free software: you are free to
 
 change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

Please select what kind of key you want:
   (1) RSA and RSA (default)
   (2) DSA and Elgamal
   (3) DSA (sign only)
   (4) RSA (sign only)
Your selection?
RSA keys may be between 1024 and 4096 bits long.
What keysize do
 
 you want? (2048)
Requested keysize is 2048 bits
Please specify how long the key should be valid.
         0 = key does not expire
      <n>  = key expires in n days
      <n>w = key expires in n weeks
      <n>m = key expires in n months
      <n>y = key expires in n years
Key is valid for? (0)
Key does not expire at all
Is this correct? (y/N) Y

You need a user ID to identify your key; the software constructs the user ID
from the Real Name, Comment and Email Address in this form:
    "Heinrich Heine (Der Dichter) <[email protected]>"

Real name: iteblog
Email address: wyphao.2007@163.com
Comment: flink-elasticsearch-connector
You selected this USER-ID:
    "iteblog (flink-elasticsearch-connector) <[email protected]>"

Change (N)ame, (C)omment, (E)mail or (O)kay/(Q)uit? O
You need a Passphrase to protect your secret key.

We need to generate a lot of random bytes. It is a good idea to perform
some other action (type on the keyboard, move the mouse, utilize the
disks) during the prime generation; this gives the random number
generator a better chance to gain enough entropy.
+++++
.+++++
gpg: /c/Users/iteblog/.gnupg/trustdb.gpg: trustdb created
gpg: key B15C5AA3 marked as ultimately trusted
public and secret key created and signed.

gpg: checking the trustdb
gpg: 3 marginal(s) needed, 1 complete(s) needed, PGP trust model
gpg: depth: 0  valid:   1  signed:   0  trust: 0-, 0q, 0n, 0m, 0f, 1u
pub   2048R/B15C5AA3 2016-09-19
      Key fingerprint = DB61 9873 924C 020E 20E7  E461 0170 C912 B15C 5AA3
uid                  iteblog (flink-elasticsearch-connector) <wyphao.2007@163.com>
sub   2048R/31A906E1 2016-09-19

配置pom.xml

1. 配置專案pom.xml
   主要需要配置parent結點，以及增加license、scm、developers資訊，這裡講我自己的pom.xml作為一個參考：

<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>cn.flyzy2005</groupId>
  <artifactId>daoutil</artifactId>
  <packaging>jar</packaging>
  <name>daoutil</name>
  <url>http://www.flyzy2005.cn</url>
  <description>A daoUtil based on JdbcTemplate.</description>

  <parent>
    <groupId>org.sonatype.oss</groupId>
    <artifactId>oss-parent</artifactId>
    <version>7</version>
  </parent>
  <licenses>
    <license>
      <name>The Apache Software License, Version 2.0</name>
      <url>http://www.apache.org/licenses/LICENSE-2.0.txt</url>
      <distribution>repo</distribution>
    </license>
  </licenses>
  <scm>
    <url>https://github.com/Flyzy2005/daoutil</url>
    <connection>[email protected]:Flyzy2005/daoutil.git</connection>
    <developerConnection>http://www.flyzy2005.cn</developerConnection>
  </scm>
  <developers>
    <developer>
      <name>fly</name>
      <email>[email protected]</email>
      <url>http://www.flyzy2005.cn</url>
    </developer>
  </developers>

  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <springversion>4.3.3.RELEASE</springversion>
  </properties>

  <dependencies>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-jdbc</artifactId>
      <version>${springversion}</version>
    </dependency>

    <dependency>
      <groupId>com.alibaba</groupId>
      <artifactId>fastjson</artifactId>
      <version>1.2.31</version>
    </dependency>
  </dependencies>
</project>

1. 配置Maven的settings.xml
   安裝配置好maven後，在maven的安裝目錄下的conf資料夾下找到settings.xml，設定如下：

<servers>
  <server>
    <id>sonatype-nexus-snapshots</id>
    <username>Sonatype網站的賬號</username>
    <password>Sonatype網站的密碼</password>
  </server>
  <server>
    <id>sonatype-nexus-staging</id>
    <username>Sonatype網站的賬號</username>
    <password>Sonatype網站的密碼</password>
  </server>
</servers>

賬號密碼就是第一步申請的Sonatype網站的賬號密碼。

部署Jar包

通過cmd進入到專案pom.xml所在的目錄下，執行如下命令：

mvn clean deploy -P sonatype-oss-release -Darguments="gpg.passphrase=設定gpg設定金鑰時候輸入的Passphrase"

如果沒有ERROR的話就deploy完成了，如果有ERROR就看錯誤資訊是什麼，解決了重新執行命令即可，執行完成的所有檔案存在專案目錄下的target資料夾裡。

上傳金鑰

兩句命令即可，首先檢視自己key的編號：

gpg --list-keys

找到 pub對應的那個編號，例如pub 2048R/8C473F5C
上傳到key驗證庫：

gpg --keyserver hkp://keyserver.ubuntu.com:11371 --send-keys 8C473F5C

release jar包

如果前幾個步驟全部正確完成，登入https://oss.sonatype.org/#stagingRepositories後，將Staging Rpositories拉到最下即可看到你剛剛釋出的jar包，選擇上方的Close，第一次好像會有工作人員回覆你第一步Create的那個Issue（我的是回覆了）Everything looks good! Now, all that’s left for you is to select that staging repository and click the “Release” button.，然後再點選Release即可，等2個小時左右即可在http://search.maven.org/看到你釋出的jar包。

更新Jar包

只需要更新pom.xml裡的version，再重新depoly，重新close，再release即可。（如果version沒有改變則會覆蓋掉中央倉庫的當前版本）。

參考