maven安装配置

下载安装配置

首先在官网下载二进制版本，避免编译的麻烦：https://maven.apache.org/download.cgi

解压缩，移动到安装目录，我一般会移动到/opt目录：/opt/apache-maven-3.3.9

配置环境变量：

export M2_HOME=/opt/apache-maven-3.3.9
export M2=$M2_HOME/bin
export HAVEN_OPTS="-Xms256m -Xmx512"
export PATH=$M2_HOME:$M2:$HAVEN_OPTS:$PATH

测试安装成功与否：

Apache Maven 3.3.9 (bb52d8502b132ec0a5a3f4c09453c07478323dc5; 2015-11-11T00:41:47+08:00)
Maven home: /opt/apache-maven-3.3.9
Java version: 1.8.0_112, vendor: Oracle Corporation
Java home: /opt/jdk1.8.0_112/jre
Default locale: zh_CN, platform encoding: UTF-8
OS name: "linux", version: "3.10.0-327.22.2.el7.x86_64", arch: "amd64", family: "unix"

maven目录结构

test01/
├── pom.xml
└── src
    ├── main
    │   └── java
    │       └── com
    │           └── imekaku
    │               └── maven01
    │                   └── model
    │                       └── HelloWorld.java
    └── test
        └── java
            └── com
                └── imekaku

                    └── maven01
                        └── model
                            └── HelloWorldTest.java

13 directories, 3 files

项目下有是src目录和pom.xml

src目录有main, test

main有java

test有java

HelloWorld代码

package com.imekaku.maven01.model;

public class HelloWorld {
	public String sayHello() {
		return "Hello world!";
	}
}

package com.imekaku.maven01.model;

import org.junit.*;
import org.junit.Assert.*;

public class HelloWorldTest {
	@Test
	public void testHello() {
		Assert.assertEquals("Hello world!", new HelloWorld().sayHello());
	}
}

编译，测试：mvn compile, mvn test

maven自动创建骨架

mvn archetype:generate # 依次输入groupid, artifactid, version, package

# 一行
mvn archetype: generate -DgroupId=com.imekaku.maven04 -DartifactId=maven04-demo -Dversion=1.0.0SNAPSHOT -Dpackage=com.imekaku.maven04.demo

添加阿里中央仓库

  <mirrors>
    <mirror>
      <id>alimaven</id>
      <name>aliyun maven</name>
      <url>http://maven.aliyun.com/nexus/content/groups/public/</url>
      <mirrorOf>central</mirrorOf>        
    </mirror>
  </mirrors>