Maven 梳理-手动创建Maven项目（非web），使用Maven编译、测试、打包、安装、引用

1. 创建空目录
   1. 　　F:\jtDevelop\maventest\myapp
2. 创建pom.xml文件
   1. 　

      <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/maven-v4_0_0.xsd">
        <modelVersion>4.0.</modelVersion>
        <groupId>com.mycompany.app</groupId>
        <artifactId>myapp</artifactId>
        <packaging>jar</packaging>
        <version>1.0-SNAPSHOT</version>
        <dependencies>
          <dependency>
              <groupId>junit</groupId>
              <artifactId>junit</artifactId>
              <version>4.12</version>
              <scope>test</scope>
          </dependency>
      
        </dependencies>
      </project>

3. 创建目录
   1. 　　F:\jtDevelop\maventest\myapp\src\main\java
4. 编写java文件
   1. 　　F:\jtDevelop\maventest\myapp\src\main\java\Cal.java

   2. public class Cal{
          private String name;
          public void setName(String name){
              this.name=name;
          }
          public String getName(){
              return "Hello "+this.name;
          }
          public static void main(String[] args){
              System.out.println("Hello Maven");
          }
      }

5. 使用Maven编译
   1. 　　

      F:\jtDevelop\maventest\myapp>cd F:\jtDevelop\maventest\myapp
      
      F:\jtDevelop\maventest\myapp>mvn compile
      
      [INFO] BUILD SUCCESS

6. 编写测试类文件
   1. 　　F:\jtDevelop\maventest\myapp\src\test\java\CalTest.java

   2. import org.junit.BeforeClass;
      import org.junit.Test;
      
      import junit.framework.TestCase;
      
      public class CalTest {
          static Cal c=null;
          @BeforeClass
          public static void init(){
              c=new Cal();
              c.setName("jt");
          }
          @Test
          public void testGetName(){
              String v=c.getName();
              TestCase.assertEquals("Hello jt", v);
          }
      }

7. 运行测试
   1. 　　

       T E S T S
      -------------------------------------------------------
      Running CalTest
      Tests run: , Failures: , Errors: , Skipped: , Time elapsed: 0.062 sec
      
      Results :
      
      Tests run: , Failures: , Errors: , Skipped: 
      
      [INFO] ----------------------------------------------------------------------
      [INFO] BUILD SUCCESS
      [INFO] ----------------------------------------------------------------------
      [INFO] Total time:  2.124 s
      [INFO] Finished at: --15T21::+:
      [INFO] ----------------------------------------------------------------------
      
      F:\jtDevelop\maventest\myapp>mvn test

8. 打包
   1. 　　
      执行"mvn package"命令
   2. 多了一个文件  F:\jtDevelop\maventest\myapp\target\myapp-1.0-SNAPSHOT.jar
9. 安装
   1. 　　执行
      执行"mvn install"命令
   2. 多了两个文件
      1. 　　F:\jtDevelop\maventest\repositorys\com\mycompany\app\myapp\1.0-SNAPSHOT\myapp-1.0-SNAPSHOT.jar
      2. F:\jtDevelop\maventest\myapp\target\myapp-1.0-SNAPSHOT.jar
10. 在其他项目中使用本项目的jar包
    1. 　　新建maven项目
    2. 编辑pom.xml

       1. <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/maven-v4_0_0.xsd">
            <modelVersion>4.0.</modelVersion>
            <groupId>com.mycompany.app</groupId>
            <artifactId>myapp2</artifactId>
            <packaging>jar</packaging>
            <version>1.0-SNAPSHOT</version>
            <dependencies>
              <dependency>
                  <groupId>junit</groupId>
                  <artifactId>junit</artifactId>
                  <version>4.12</version>
                  <scope>test</scope>
              </dependency>
              <dependency>
                  <groupId>com.mycompany.app</groupId>
                  <artifactId>myapp1</artifactId>
                  <version>1.0-SNAPSHOT</version>
                  <scope>test</scope>
              </dependency>
          
            </dependencies>
          </project>