一、修改Maven配置文件

为支持混合加载远程与本地包，需在maven配置文件中分别指定远程和本地地址：

  • 远程：https://maven.aliyun.com/repository/central
  • 本地：file://${HOME}/.m2/repository_backup
vim ~/.m2/settings.xml

<?xml version="1.0" encoding="UTF-8"?>
<settings>
    <profiles>
        <profile>
            <id>m2-mix-remote-local</id>
            <repositories>
                <repository>
                    <id>m2-remote</id>
                    <url>https://maven.aliyun.com/repository/central</url>
                </repository>
                <repository>
                    <id>m2-local</id>
                    <url>file://${HOME}/.m2/repository_backup</url>
                </repository>
            </repositories>
            <pluginRepositories>
                <pluginRepository>
                    <id>m2-remote</id>
                    <url>https://maven.aliyun.com/repository/central</url>
                </pluginRepository>
                <pluginRepository>
                    <id>m2-local</id>
                    <url>file://${HOME}/.m2/repository_backup</url>
                </pluginRepository>            
            </pluginRepositories>
        </profile>
    </profiles>
    <activeProfiles>
        <activeProfile>m2-mix-remote-local</activeProfile>
    </activeProfiles>
</settings>

二、收集本地依赖包

（1）重命名原来的maven本地仓库，后续将从该目录下提取无法从公网下载的依赖包。

mv ~/.m2/repository ~/.m2/repository_origin

（2）进入代码根目录，获取缺失的依赖包信息。

# 二选一
mvn dependency:go-offline
mvn compile

（3）将上述依赖包保存到dependencies.txt文件中：

vim dependencies.txt

com.openjaw.certifiedschemas:openjaw-certifiedschemas:jar:7.24.0-RL-SNAPSHOT
com.oracle:ojdbc6:jar:11.2.0.3.0

（4）编写并执行收集本地依赖包脚本：

vim collect_repo.sh

#!/bin/bash

repo_origin="$HOME/.m2/repository_origin"
repo_backup="$HOME/.m2/repository_backup"
repo_current="$HOME/.m2/repository"

while IFS=: read -r group artifact ext version; do

    real_group=$(echo "$group" | tr '.' '/')
    dir="$real_group/$artifact/$version"
    pom_file="$artifact-$version.pom"
    jar_file="$artifact-$version.jar"
    zip_file="$artifact-$version.zip"

    echo "-> $repo_backup/$dir"
    mkdir -p "$repo_backup/$dir"

    if [ $ext = 'pom' ]; then
        cp "$repo_origin/$dir/$pom_file" "$repo_backup/$dir/"
        sha1sum "$repo_backup/$dir/$pom_file" > "$repo_backup/$dir/$pom_file.sha1"
    fi
    if [ $ext = 'jar' ]; then
        cp "$repo_origin/$dir/$pom_file" "$repo_backup/$dir/"
        cp "$repo_origin/$dir/$jar_file" "$repo_backup/$dir/"
        sha1sum "$repo_backup/$dir/$pom_file" > "$repo_backup/$dir/$pom_file.sha1"
        sha1sum "$repo_backup/$dir/$jar_file" > "$repo_backup/$dir/$jar_file.sha1"
    fi
    if [ $ext = 'zip' ]; then
        cp "$repo_origin/$dir/$pom_file" "$repo_backup/$dir/"
        cp "$repo_origin/$dir/$zip_file" "$repo_backup/$dir/"
        sha1sum "$repo_backup/$dir/$pom_file" > "$repo_backup/$dir/$pom_file.sha1"
        sha1sum "$repo_backup/$dir/$zip_file" > "$repo_backup/$dir/$zip_file.sha1"
    fi    
    rm -rf "$repo_current/$dir"

done < dependencies.txt

./collect_repo.sh

（4）重复上述步骤2-4，直至所有缺失的依赖包均收集成功。

三、打包本地依赖包

经过上述流程，所有的本地依赖包均被收集到了$HOME/.m2/repository_backup目录，可使用tar与gpg对其进行压缩与解压。

（1）压缩

vim encrypt.sh

#!/bin/bash

tar cJvhf - repository_backup | gpg -co repository_backup.txz.gpg

（2）解压

vim decrypt.sh

#!/bin/bash

gpg -d repository_backup.txz.gpg | tar -xJvf -