简介
mvnd 是参考 gradle和 takari新出的一款基于 maven的但比它更快的构建工具;
更多介绍, 查看官网: github.com/apache/mave…
安装
下载mvnd
我下载了 mvnd-0.7.1-windows-amd64.zip
下载完毕后，找一个路径，解压即可
配置
配置 JDK
因为 mvnd 依赖于 jdk 启动，所以我们需要首先配置jdk
我们先来看一下错误日志
> mvnd clean
Exception in thread "main" java.lang.IllegalStateException: Could not get value for Environment.JAVA_HOME from any of the following sources: value: java.home, environment variable JAVA_HOME, property java.home in E:\workspace\traffic_stat_backend.mvn\mvnd.properties, property java.home in C:\Users\Administrator.m2\mvnd.properties, property java.home in D:\Java\mvnd-0.7.1-windows-amd64\conf\mvnd.properties, system property java.home
at org.mvndaemon.mvnd.client.DaemonParameters$EnvValue.couldNotgetValue(DaemonParameters.java:596)
at org.mvndaemon.mvnd.client.DaemonParameters$EnvValue.lambda$orFail$8(DaemonParameters.java:573)
at org.mvndaemon.mvnd.client.DaemonParameters$EnvValue.get(DaemonParameters.java:606)
at org.mvndaemon.mvnd.client.DaemonParameters$EnvValue.asPath(DaemonParameters.java:629)
at org.mvndaemon.mvnd.client.DaemonParameters.javaHome(DaemonParameters.java:140)
at org.mvndaemon.mvnd.client.DaemonConnector.connect(DaemonConnector.java:99)
at org.mvndaemon.mvnd.client.DefaultClient.execute(DefaultClient.java:272)
at org.mvndaemon.mvnd.client.DefaultClient.main(DefaultClient.java:118)
复制代码异常告诉我们在配置文件java.home和环境变量JAVA_HOME找不到
那么我们就基于此错误进行一些配置。方式很简单，我这里列出了两种方案，我们只需要选择最合适自己的一种方式即可
第一种就是基于环境变量的方式
第二种是基于 mvnd 的配置文件方式
1、环境变量法
注意: mvnd 需要环境变量 JAVA_HOME否则会报错
具体配置方式，我这里就不列出了。
2、配置文件法
在某些情况，我们需要在环境变量中配置jdk11或者更高的，而mvnd需要jdk1.8的怎么办？
遇到这种情况，我们就可以采用第二种方式，具体操作请看下面说明
我们还可以选择在 mvnd-0.7.1-windows-amd64\conf 目录下手动指定 jdk 的路径
首先我们打开 mvnd.properties 文件
找到 java.home所在行，大概在149行的位置，我们首先把注释（# ）取消掉，然后在路径处填入jdk路径即可
修改完毕后，我们再次执行命令，我们可以看到成功执行了
mvnd clean
复制代码修改完保存后我们来测试
设置mvnd环境变量
设置mvnd环境变量后，可以让我们在任何目录下使用mvnd命令，具体配置就不列出了。
设置mvnd内置的maven配置
目录 \mvn下就是mvnd内置的maven, 和平时使用的maven没区别
所以我们配置maven时, 直接修改 \mvn\conf下的 settings.xml即可
具体配置, 和maven一样
指定 settings.xml
注意：mvnd 中，并不会直接使用 mvnd\mvn\conf下的 settings.xml配置，我们需要手动进行执行配置文件路径
首先我们打开 mvnd\conf\mvnd.properties文件
然后在最下方，找到 maven.settings 配置项
我们将此配置项注释取消，然后把我们 mvnd\mvn\conf\settings.xml 的绝对路径填入即可
具体请看图片
大型大屏系统实战
本次实战项目拥有14个工程，下面我们来看看使用 mvn 和 mvnd 执行耗时吧
声明：本次测试仅代表个人实际开发过程中使用记录，并不专业，但也有一定的参考性能
测试前置条件
每次测试所有工程都处于安装状态（即执行了mvn clean install）命令后
settings.xml 为同配置方式
系统性能
此次测试机器是公司真实开发机器，以及负载情况也是真实的
测试目标
分别使用以下命令执行两次
-
mvn clean install&mvnd clean install -
mvn clean package&mvnd clean package
测试结果
install
> mvn clean install
- 1. 第一次
[INFO] xxx ............................................ SUCCESS [ 0.199 s]
[INFO] xxx-admin-core ................................. SUCCESS [ 1.794 s]
[INFO] xxx-common ..................................... SUCCESS [ 3.103 s]
[INFO] xxx-system ..................................... SUCCESS [ 0.489 s]
[INFO] xxx-framework .................................. SUCCESS [ 0.758 s]
[INFO] xxx-admin ...................................... SUCCESS [ 2.024 s]
[INFO] xxx-admin-backend .............................. SUCCESS [ 4.230 s]
[INFO] xxx-eee-itc ............................... SUCCESS [ 0.900 s]
[INFO] xxx-eee-hls ............................... SUCCESS [ 1.956 s]
[INFO] xxx-eee-haiwan ............................ SUCCESS [ 5.842 s]
[INFO] xxx-eee-unisee ............................ SUCCESS [ 5.080 s]
[INFO] xxx-eee-temperature ....................... SUCCESS [ 5.021 s]
[INFO] xxx-eee-schneider ......................... SUCCESS [ 7.080 s]
[INFO] xxx-eee-common ............................ SUCCESS [ 5.448 s]
[INFO] xxx-eee-statistics ........................ SUCCESS [ 5.555 s]
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 49.942 s
[INFO] Finished at: 2022-01-05T10:12:23+08:00
[INFO] ------------------------------------------------------------------------
- 2. 第二次
[INFO] xxx ............................................ SUCCESS [ 0.195 s]
[INFO] xxx-admin-core ................................. SUCCESS [ 1.857 s]
[INFO] xxx-common ..................................... SUCCESS [ 3.161 s]
[INFO] xxx-system ..................................... SUCCESS [ 0.519 s]
[INFO] xxx-framework .................................. SUCCESS [ 0.738 s]
[INFO] xxx-admin ...................................... SUCCESS [ 2.049 s]
[INFO] xxx-admin-backend .............................. SUCCESS [ 3.827 s]
[INFO] xxx-eee-itc ............................... SUCCESS [ 1.078 s]
[INFO] xxx-eee-hls ............................... SUCCESS [ 1.521 s]
[INFO] xxx-eee-haiwan ............................ SUCCESS [ 6.198 s]
[INFO] xxx-eee-unisee ............................ SUCCESS [ 5.261 s]
[INFO] xxx-eee-temperature ....................... SUCCESS [ 6.103 s]
[INFO] xxx-eee-schneider ......................... SUCCESS [ 4.787 s]
[INFO] xxx-eee-common ............................ SUCCESS [ 5.369 s]
[INFO] xxx-eee-statistics ........................ SUCCESS [ 5.804 s]
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 48.913 s
[INFO] Finished at: 2022-01-05T10:13:32+08:00
[INFO] ------------------------------------------------------------------------
复制代码> mvnd clean install
- 1. 第一次
[INFO] xxx ............................................ SUCCESS [ 0.005 s]
[INFO] xxx-admin-core ................................. SUCCESS [ 0.308 s]
[INFO] xxx-common ..................................... SUCCESS [ 1.435 s]
[INFO] xxx-system ..................................... SUCCESS [ 0.291 s]
[INFO] xxx-framework .................................. SUCCESS [ 0.495 s]
[INFO] xxx-admin ...................................... SUCCESS [ 1.391 s]
[INFO] xxx-admin-backend .............................. SUCCESS [ 19.003 s]
[INFO] xxx-eee-itc ............................... SUCCESS [ 19.376 s]
[INFO] xxx-eee-hls ............................... SUCCESS [ 18.461 s]
[INFO] xxx-eee-haiwan ............................ SUCCESS [ 12.390 s]
[INFO] xxx-eee-unisee ............................ SUCCESS [ 0.858 s]
[INFO] xxx-eee-temperature ....................... SUCCESS [ 0.834 s]
[INFO] xxx-eee-schneider ......................... SUCCESS [ 17.140 s]
[INFO] xxx-eee-common ............................ SUCCESS [ 12.672 s]
[INFO] xxx-eee-statistics ........................ SUCCESS [ 0.835 s]
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 41.776 s (Wall Clock)
[INFO] Finished at: 2022-01-05T10:17:15+08:00
[INFO] ------------------------------------------------------------------------
- 2. 第二次
[INFO] xxx ............................................ SUCCESS [ 0.004 s]
[INFO] xxx-admin-core ................................. SUCCESS [ 0.310 s]
[INFO] xxx-common ..................................... SUCCESS [ 1.573 s]
[INFO] xxx-system ..................................... SUCCESS [ 0.298 s]
[INFO] xxx-framework .................................. SUCCESS [ 0.418 s]
[INFO] xxx-admin ...................................... SUCCESS [ 1.407 s]
[INFO] xxx-admin-backend .............................. SUCCESS [ 19.343 s]
[INFO] xxx-eee-itc ............................... SUCCESS [ 17.165 s]
[INFO] xxx-eee-hls ............................... SUCCESS [ 16.195 s]
[INFO] xxx-eee-haiwan ............................ SUCCESS [ 11.439 s]
[INFO] xxx-eee-unisee ............................ SUCCESS [ 1.213 s]
[INFO] xxx-eee-temperature ....................... SUCCESS [ 1.127 s]
[INFO] xxx-eee-schneider ......................... SUCCESS [ 17.177 s]
[INFO] xxx-eee-common ............................ SUCCESS [ 12.903 s]
[INFO] xxx-eee-statistics ........................ SUCCESS [ 1.179 s]
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 40.317 s (Wall Clock)
[INFO] Finished at: 2022-01-05T10:18:38+08:00
[INFO] ------------------------------------------------------------------------
复制代码package
> mvn clean package
- 1. 第一次
[INFO] xxx ............................................ SUCCESS [ 0.115 s]
[INFO] xxx-admin-core ................................. SUCCESS [ 1.970 s]
[INFO] xxx-common ..................................... SUCCESS [ 3.123 s]
[INFO] xxx-system ..................................... SUCCESS [ 0.504 s]
[INFO] xxx-framework .................................. SUCCESS [ 0.769 s]
[INFO] xxx-admin ...................................... SUCCESS [ 2.711 s]
[INFO] xxx-admin-backend .............................. SUCCESS [ 3.065 s]
[INFO] xxx-eee-itc ............................... SUCCESS [ 0.776 s]
[INFO] xxx-eee-hls ............................... SUCCESS [ 0.811 s]
[INFO] xxx-eee-haiwan ............................ SUCCESS [ 1.110 s]
[INFO] xxx-eee-unisee ............................ SUCCESS [ 1.733 s]
[INFO] xxx-eee-temperature ....................... SUCCESS [ 0.844 s]
[INFO] xxx-eee-schneider ......................... SUCCESS [ 1.169 s]
[INFO] xxx-eee-common ............................ SUCCESS [ 2.295 s]
[INFO] xxx-eee-statistics ........................ SUCCESS [ 3.024 s]
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 24.509 s
[INFO] Finished at: 2022-01-05T10:21:31+08:00
[INFO] ------------------------------------------------------------------------
- 2. 第二次
[INFO] xxx ............................................ SUCCESS [ 0.111 s]
[INFO] xxx-admin-core ................................. SUCCESS [ 1.981 s]
[INFO] xxx-common ..................................... SUCCESS [ 3.235 s]
[INFO] xxx-system ..................................... SUCCESS [ 0.507 s]
[INFO] xxx-framework .................................. SUCCESS [ 0.790 s]
[INFO] xxx-admin ...................................... SUCCESS [ 1.996 s]
[INFO] xxx-admin-backend .............................. SUCCESS [ 2.947 s]
[INFO] xxx-eee-itc ............................... SUCCESS [ 0.747 s]
[INFO] xxx-eee-hls ............................... SUCCESS [ 0.910 s]
[INFO] xxx-eee-haiwan ............................ SUCCESS [ 0.703 s]
[INFO] xxx-eee-unisee ............................ SUCCESS [ 1.179 s]
[INFO] xxx-eee-temperature ....................... SUCCESS [ 1.527 s]
[INFO] xxx-eee-schneider ......................... SUCCESS [ 1.405 s]
[INFO] xxx-eee-common ............................ SUCCESS [ 1.024 s]
[INFO] xxx-eee-statistics ........................ SUCCESS [ 2.238 s]
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 21.709 s
[INFO] Finished at: 2022-01-05T10:22:14+08:00
[INFO] ------------------------------------------------------------------------
复制代码> mvnd clean package
- 1. 第一次
[INFO] xxx ............................................ SUCCESS [ 0.023 s]
[INFO] xxx-admin-core ................................. SUCCESS [ 0.393 s]
[INFO] xxx-common ..................................... SUCCESS [ 1.507 s]
[INFO] xxx-system ..................................... SUCCESS [ 0.294 s]
[INFO] xxx-framework .................................. SUCCESS [ 0.417 s]
[INFO] xxx-admin ...................................... SUCCESS [ 1.354 s]
[INFO] xxx-admin-backend .............................. SUCCESS [ 6.264 s]
[INFO] xxx-eee-itc ............................... SUCCESS [ 1.562 s]
[INFO] xxx-eee-hls ............................... SUCCESS [ 2.281 s]
[INFO] xxx-eee-haiwan ............................ SUCCESS [ 2.067 s]
[INFO] xxx-eee-unisee ............................ SUCCESS [ 1.049 s]
[INFO] xxx-eee-temperature ....................... SUCCESS [ 0.907 s]
[INFO] xxx-eee-schneider ......................... SUCCESS [ 1.516 s]
[INFO] xxx-eee-common ............................ SUCCESS [ 2.832 s]
[INFO] xxx-eee-statistics ........................ SUCCESS [ 0.948 s]
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 12.251 s (Wall Clock)
[INFO] Finished at: 2022-01-05T10:23:18+08:00
[INFO] ------------------------------------------------------------------------
- 2. 第二次
[INFO] xxx ............................................ SUCCESS [ 0.001 s]
[INFO] xxx-admin-core ................................. SUCCESS [ 0.376 s]
[INFO] xxx-common ..................................... SUCCESS [ 1.523 s]
[INFO] xxx-system ..................................... SUCCESS [ 0.289 s]
[INFO] xxx-framework .................................. SUCCESS [ 0.415 s]
[INFO] xxx-admin ...................................... SUCCESS [ 1.474 s]
[INFO] xxx-admin-backend .............................. SUCCESS [ 8.787 s]
[INFO] xxx-eee-itc ............................... SUCCESS [ 0.729 s]
[INFO] xxx-eee-hls ............................... SUCCESS [ 0.678 s]
[INFO] xxx-eee-haiwan ............................ SUCCESS [ 5.181 s]
[INFO] xxx-eee-unisee ............................ SUCCESS [ 0.751 s]
[INFO] xxx-eee-temperature ....................... SUCCESS [ 0.699 s]
[INFO] xxx-eee-schneider ......................... SUCCESS [ 0.714 s]
[INFO] xxx-eee-common ............................ SUCCESS [ 5.172 s]
[INFO] xxx-eee-statistics ........................ SUCCESS [ 0.709 s]
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 12.856 s (Wall Clock)
[INFO] Finished at: 2022-01-05T10:23:50+08:00
[INFO] ------------------------------------------------------------------------
复制代码结果
mvnd 比 mvn 快