17-30 maven基础_动力节点

本地仓库的设置 #

  • 远程仓库–>本地仓库

  • maven仓库

    • 存放maven工具自己的jar包
    • 第三方jar，比如mysql驱动
    • 自己写的程序，可以打包为jar，存放到仓库

  • 分类

    • 本地仓库（本机）：位于自己计算机中，磁盘中某个目录

      • 默认位置 登录操作系统的账号目录/.m2/repository C:\Users\ly.m2\repository

      • 可修改 比如放在d盘中

        英[rɪˈpɒzətri] D:\software\apache-maven-3.8.6\repository 备份并编辑 ly-20241212142145669 改成左斜杠的方式

        <settings xmlns="http://maven.apache.org/SETTINGS/1.2.0"
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.2.0 https://maven.apache.org/xsd/settings-1.2.0.xsd">
  <!-- localRepository
   | The path to the local repository maven will use to store artifacts.
   |
   | Default: ${user.home}/.m2/repository
  <localRepository>/path/to/local/repo</localRepository>
  -->
   <localRepository>D:/software/apache-maven-3.8.6/repository</localRepository>

      • 把之前user下的repository的文件都拷贝到 D:/software/apache-maven-3.8.6/repository 下 然后再对Hello项目进行编译 mvn compile 发现不会下载任何文件，且user下的repository也不会再进行下载

      • 下面的资源是从maven中下载，或者用maven打包的 ly-20241212142145849

    • pom.xml来说明某个项目需要怎么处理代码、项目结构

    <?xml version="1.0" encoding="UTF-8" ?>

<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>4.0.0</modelVersion>

    <groupId>com.bjpowernode</groupId>
    <artifactId>ch01-maven</artifactId>
    <version>1.0-SNAPSHOT</version>
    <packaging>jar</packaging>
    <properties>
    		<java.version>1.8</java.version>
    		<maven.compiler.source>1.8</maven.compiler.source>
    		<maven.compiler.target>1.8</maven.compiler.target>
    </properties>
    <dependencies>
    		<dependency>
    				<groupId>mysql</groupId>
    				<artifactId>mysql-connector-java</artifactId>
    				<version>5.1.9</version>
    		</dependency>
    </dependencies>

</project>
    • mvn命令需要在pom.xml所在的目录下执行 ly-20241212142145908

仓库的工作方式 #

ly-20241212142145966

生命周期插件命令 #

  • 包括 清理（删除target文件，但是不处理已经install的jar）、编译（当前目录生成target目录，放置编译主程序之后生成的字节码）、测试（生成surefire-reports，保存测试结果）、报告、打包（打包主程序[编译、编译测试、测试，并按照pom.xml配置把主程序打包成jar包或war包]）、安装（把本工程打包，并按照工程坐标保存到本地仓库中）、部署(打包，保存到本地仓库，并保存到私服中，且自动把项目部署到web容器中)
  • 插件：要完成构建项目的各个阶段，要使用maven的命令，执行命令的功能，是通过插件完成的 插件就是jar，一些类
  • 命令：执行maven功能，通过命令发出，比如mvn compile（编译时由相关的类来操作）

junit使用 #

  • 单元测试 junit：单元测试的工具，java中经常使用 单元，java中指的是方法，方法就是一个单元，方法是测试的最小单位

  • 作用，使用junit去测试方法是否完成了要求，开发人员自测

  • 使用单元测试

    • 加入junit的依赖（需要用他的类和方法）

          		<dependency>
    				<groupId>junit</groupId>
    				<artifactId>junit</artifactId>
    				<version>4.12>
    				<scope>test</scope>
    		</dependency>

    • 在src/test/java目录中创建测试类文件，写测试代码

      • 测试类的定义，名称一般是Test+要测试的类名称
      • 测试它的包名和要测试的类包名一样
      • 在类中定义方法，要测试的代码
      • 方法定义：public方法，没有返回值，名称自定义（建议Test+测试的方法名称） 方法没有参数
      • 测试类中的方法，可以单独执行，测试类也可以单独执行
      • 在该方法上面加入注解@Test

    • 注意：mvn compile的时候，会下载3.8.2的jar包 ly-20241212142146024

创建测试类和测试方法 #

package com.bjpowernode;
//导入包
import org.junit.Assert;
import org.junit.Test;

public class TestHelloMaven{
	//定义多个独立的测试方法，每个方法都是独立的
	public void testAddNumber(){
		System.out.println("执行了测试方法testAddNumber");
		HelloMaven hello=new HelloMaven();
		int res=hello.addNumber(10,20);
		//把计算结果res交给junit判断
		//期望值，实际值
		Assert.assertEquals(30,res);
		
	}
}

相关命令 #

  • mvn clean ，清理，删除以前生成的数据（删除target目录） ly-20241212142146083

    • 插件及版本 maven-clean-plugin:2.5

      d:\Users\ly\Documents\git\mavenwork\Hello>mvn clean
[INFO] Scanning for projects...
[INFO]
[INFO] ---------------------< com.bjpowernode:ch01-maven >---------------------
[INFO] Building ch01-maven 1.0-SNAPSHOT
[INFO] --------------------------------[ jar ]---------------------------------
[INFO]
[INFO] --- maven-clean-plugin:2.5:clean (default-clean) @ ch01-maven ---
[INFO] Deleting d:\Users\ly\Documents\git\mavenwork\Hello\target
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  0.354 s
[INFO] Finished at: 2022-07-09T17:03:46+08:00
[INFO] ------------------------------------------------------------------------

  • 代码的编译 mvn compile：编译命令，把src/main/java 目录中的java代码编译为class文件 同时把class文件拷贝到target/classes目录，这个目录classes是存放类文件的根目录（也叫做类路径，classpath）

    • 编译后放到target\classes中 插件：maven-compiler-plugin:3.1 编译代码 maven-resources-plugin:2.6:resources 资源插件，作用是把src/main/resources目录中的文件拷贝到target/classes 目录中

      λ mvn compile
[INFO] Scanning for projects...
[INFO]
[INFO] ---------------------< com.bjpowernode:ch01-maven >---------------------
[INFO] Building ch01-maven 1.0-SNAPSHOT
[INFO] --------------------------------[ jar ]---------------------------------
[INFO]
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ ch01-maven ---
[WARNING] Using platform encoding (GBK actually) to copy filtered resources, i.e. build is platform dependent![INFO] Copying 1 resource
[INFO]
[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ ch01-maven ---
[INFO] Changes detected - recompiling the module!
[WARNING] File encoding has not been set, using platform encoding GBK, i.e. build is platform dependent!
[INFO] Compiling 1 source file to D:\Users\ly\Documents\git\mavenwork\Hello\target\classes
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  3.164 s
[INFO] Finished at: 2022-07-09T17:20:30+08:00
[INFO] ------------------------------------------------------------------------

    • 测试resources插件 ly-20241212142146139 ly-20241212142146195

  • mvn test-compile:编译命令，编译src/test/java 目录中的源文件，把生成的class拷贝到target/test-classes目录中，同时把src/test/resources目录中的文件拷贝到test-classes目录 命令执行前 ly-20241212142146250 执行后 ly-20241212142146310

    • 插件 maven-resources-plugin:2.6:resources maven-compiler-plugin:3.1:compile maven-resources-plugin:2.6:testResources maven-compiler-plugin:3.1:testCompile

      λ mvn test-compile
[INFO] Scanning for projects...
[INFO]
[INFO] ---------------------< com.bjpowernode:ch01-maven >---------------------
[INFO] Building ch01-maven 1.0-SNAPSHOT
[INFO] --------------------------------[ jar ]---------------------------------
Downloading from central: https://repo.maven.apache.org/maven2/junit/junit/4.12/junit-4.12.jar
Downloading from central: https://repo.maven.apache.org/maven2/org/hamcrest/hamcrest-core/1.3/hamcrest-core-1.3.jar
Downloaded from central: https://repo.maven.apache.org/maven2/org/hamcrest/hamcrest-core/1.3/hamcrest-core-1.3.jar (45 kB at 24 kB/s)
Downloaded from central: https://repo.maven.apache.org/maven2/junit/junit/4.12/junit-4.12.jar (315 kB at 118 kB/s)
[INFO]
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ ch01-maven ---
[WARNING] Using platform encoding (GBK actually) to copy filtered resources, i.e. build is platform dependent![INFO] Copying 2 resources
[INFO]
[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ ch01-maven ---
[INFO] Nothing to compile - all classes are up to date
[INFO]
[INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ ch01-maven ---
[WARNING] Using platform encoding (GBK actually) to copy filtered resources, i.e. build is platform dependent![INFO] Copying 1 resource
[INFO]
[INFO] --- maven-compiler-plugin:3.1:testCompile (default-testCompile) @ ch01-maven ---
[INFO] Changes detected - recompiling the module!
[WARNING] File encoding has not been set, using platform encoding GBK, i.e. build is platform dependent!
[INFO] Compiling 1 source file to D:\Users\ly\Documents\git\mavenwork\Hello\target\test-classes
[WARNING] /D:/Users/ly/Documents/git/mavenwork/Hello/src/test/java/com/bjpowernode/TestHelloMaven.java:[2,7]
编码GBK的不可映射字符
[WARNING] /D:/Users/ly/Documents/git/mavenwork/Hello/src/test/java/com/bjpowernode/TestHelloMaven.java:[8,42] 编码GBK的不可映射字符
[WARNING] /D:/Users/ly/Documents/git/mavenwork/Hello/src/test/java/com/bjpowernode/TestHelloMaven.java:[14,29] 编码GBK的不可映射字符
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  8.085 s
[INFO] Finished at: 2022-07-09T17:28:14+08:00
[INFO] ------------------------------------------------------------------------

  • mvn test 测试命令，执行test-classes目录的程序，测试src/main/java目录中的主程序是否符合要求 注意，这里还是会用到编译插件和资源插件，从 T E S T S 开始测试 结果Results :

    Tests run: 1, Failures: 0, Errors: 0, Skipped: 0 测试插件 maven-surefire-plugin:2.12.4

    λ mvn test
[INFO] Scanning for projects...
[INFO]
[INFO] ---------------------< com.bjpowernode:ch01-maven >---------------------
[INFO] Building ch01-maven 1.0-SNAPSHOT
[INFO] --------------------------------[ jar ]---------------------------------
[INFO]
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ ch01-maven ---
[WARNING] Using platform encoding (GBK actually) to copy filtered resources, i.e. build is platform dependent![INFO] Copying 2 resources
[INFO]
[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ ch01-maven ---
[INFO] Nothing to compile - all classes are up to date
[INFO]
[INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ ch01-maven ---
[WARNING] Using platform encoding (GBK actually) to copy filtered resources, i.e. build is platform dependent![INFO] Copying 1 resource
[INFO]
[INFO] --- maven-compiler-plugin:3.1:testCompile (default-testCompile) @ ch01-maven ---
[INFO] Changes detected - recompiling the module!
[WARNING] File encoding has not been set, using platform encoding GBK, i.e. build is platform dependent!
[INFO] Compiling 1 source file to D:\Users\ly\Documents\git\mavenwork\Hello\target\test-classes
[INFO]
[INFO] --- maven-surefire-plugin:2.12.4:test (default-test) @ ch01-maven ---
[INFO] Surefire report directory: D:\Users\ly\Documents\git\mavenwork\Hello\target\surefire-reports

-------------------------------------------------------
 T E S T S
-------------------------------------------------------
Running com.bjpowernode.TestHelloMaven
执行了测试方法testAddNumber
hello maven -addNumber
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.131 sec

Results :

Tests run: 1, Failures: 0, Errors: 0, Skipped: 0

[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  4.630 s
[INFO] Finished at: 2022-07-09T17:32:49+08:00
[INFO] ------------------------------------------------------------------------

    测试报告 ly-20241212142146369

    • 测试失败的情况 ly-20241212142146428

      • 结果

        λ mvn test
[INFO] Scanning for projects...
[INFO]
[INFO] ---------------------< com.bjpowernode:ch01-maven >---------------------
[INFO] Building ch01-maven 1.0-SNAPSHOT
[INFO] --------------------------------[ jar ]---------------------------------
[INFO]
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ ch01-maven ---
[WARNING] Using platform encoding (GBK actually) to copy filtered resources, i.e. build is platform dependent![INFO] Copying 2 resources
[INFO]
[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ ch01-maven ---
[INFO] Nothing to compile - all classes are up to date
[INFO]
[INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ ch01-maven ---
[WARNING] Using platform encoding (GBK actually) to copy filtered resources, i.e. build is platform dependent![INFO] Copying 1 resource
[INFO]
[INFO] --- maven-compiler-plugin:3.1:testCompile (default-testCompile) @ ch01-maven ---
[INFO] Changes detected - recompiling the module!
[WARNING] File encoding has not been set, using platform encoding GBK, i.e. build is platform dependent!
[INFO] Compiling 1 source file to D:\Users\ly\Documents\git\mavenwork\Hello\target\test-classes
[INFO]
[INFO] --- maven-surefire-plugin:2.12.4:test (default-test) @ ch01-maven ---
[INFO] Surefire report directory: D:\Users\ly\Documents\git\mavenwork\Hello\target\surefire-reports

-------------------------------------------------------
 T E S T S
-------------------------------------------------------
Running com.bjpowernode.TestHelloMaven
执行了测试方法testAddNumber
hello maven -addNumber
Tests run: 1, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 0.217 sec <<< FAILURE!
testAddNumber(com.bjpowernode.TestHelloMaven)  Time elapsed: 0.043 sec  <<< FAILURE!
java.lang.AssertionError: expected:<60> but was:<30>
        at org.junit.Assert.fail(Assert.java:88)
        at org.junit.Assert.failNotEquals(Assert.java:834)
        at org.junit.Assert.assertEquals(Assert.java:645)
        at org.junit.Assert.assertEquals(Assert.java:631)
        at com.bjpowernode.TestHelloMaven.testAddNumber(TestHelloMaven.java:15)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
        at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
        at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
        at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
        at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
        at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
        at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
        at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
        at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
        at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
        at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
        at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
        at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
        at org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:252)
        at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:141)
        at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:112)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.apache.maven.surefire.util.ReflectionUtils.invokeMethodWithArray(ReflectionUtils.java:189)
        at org.apache.maven.surefire.booter.ProviderFactory$ProviderProxy.invoke(ProviderFactory.java:165)
        at org.apache.maven.surefire.booter.ProviderFactory.invokeProvider(ProviderFactory.java:85)
        at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:115)
        at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:75)


Results :

Failed tests:   testAddNumber(com.bjpowernode.TestHelloMaven): expected:<60> but was:<30>

Tests run: 1, Failures: 1, Errors: 0, Skipped: 0

[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  8.018 s
[INFO] Finished at: 2022-07-09T17:35:38+08:00
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-surefire-plugin:2.12.4:test (default-test) on project ch01-maven: There are test failures.
[ERROR]
[ERROR] Please refer to D:\Users\ly\Documents\git\mavenwork\Hello\target\surefire-reports for the individual test results.
[ERROR] -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException

  • mvn package 打包，作用是把项目中的资源class文件和配置文件，都放到一个压缩包中，默认压缩文件是jar类型，web应用是war类型，扩展名jar/war 这里进行了编译、测试、打包 [INFO] Building jar: D:\Users\ly\Documents\git\mavenwork\Hello\target\ch01-maven-1.0-SNAPSHOT.jar 打包插件 maven-jar-plugin:2.4:jar (default-jar) @ ch01-maven maven-jar-plugin:2.4用来执行打包，会生成jar扩展名文件

    λ mvn package
[INFO] Scanning for projects...
[INFO]
[INFO] ---------------------< com.bjpowernode:ch01-maven >---------------------
[INFO] Building ch01-maven 1.0-SNAPSHOT
[INFO] --------------------------------[ jar ]---------------------------------
[INFO]
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ ch01-maven ---
[WARNING] Using platform encoding (GBK actually) to copy filtered resources, i.e. build is platform dependent!
[INFO] Copying 2 resources
[INFO]
[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ ch01-maven ---
[INFO] Changes detected - recompiling the module!
[WARNING] File encoding has not been set, using platform encoding GBK, i.e. build is platform dependent!
[INFO] Compiling 1 source file to D:\Users\ly\Documents\git\mavenwork\Hello\target\classes
[INFO]
[INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ ch01-maven ---
[WARNING] Using platform encoding (GBK actually) to copy filtered resources, i.e. build is platform dependent!
[INFO] Copying 1 resource
[INFO]
[INFO] --- maven-compiler-plugin:3.1:testCompile (default-testCompile) @ ch01-maven ---
[INFO] Changes detected - recompiling the module!
[WARNING] File encoding has not been set, using platform encoding GBK, i.e. build is platform dependent!
[INFO] Compiling 1 source file to D:\Users\ly\Documents\git\mavenwork\Hello\target\test-classes
[INFO]
[INFO] --- maven-surefire-plugin:2.12.4:test (default-test) @ ch01-maven ---
[INFO] Surefire report directory: D:\Users\ly\Documents\git\mavenwork\Hello\target\surefire-reports

-------------------------------------------------------
 T E S T S
-------------------------------------------------------
Running com.bjpowernode.TestHelloMaven
执行了测试方法testAddNumber
hello maven -addNumber
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.135 sec

Results :

Tests run: 1, Failures: 0, Errors: 0, Skipped: 0

[INFO]
[INFO] --- maven-jar-plugin:2.4:jar (default-jar) @ ch01-maven ---
[INFO] Building jar: D:\Users\ly\Documents\git\mavenwork\Hello\target\ch01-maven-1.0-SNAPSHOT.jar
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  5.624 s
[INFO] Finished at: 2022-07-09T17:40:44+08:00
[INFO] ------------------------------------------------------------------------

    • 生成ch01-maven-1.0-SNAPSHOT.jar 坐标

      	<groupId>com.bjpowernode</groupId>
    <artifactId>ch01-maven</artifactId>
    <version>1.0-SNAPSHOT</version>
    <packaging>jar</packaging>

      打包的文件名 artifactId-version.packaging 查看jar ly-20241212142146483

      打包的文件中，包括src/main目录中所有的生成的class文件和配置文件（resources下），和测试test无关

  • mvn install 把生成的打包文件（jar）安装到maven仓库中 插件：maven-install-plugin-2.4

    λ mvn install
[INFO] Scanning for projects...
[INFO]
[INFO] ---------------------< com.bjpowernode:ch01-maven >---------------------
[INFO] Building ch01-maven 1.0-SNAPSHOT
[INFO] --------------------------------[ jar ]---------------------------------
[INFO]
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ ch01-maven ---
[WARNING] Using platform encoding (GBK actually) to copy filtered resources, i.e. build is platform dependent!
[INFO] Copying 2 resources
[INFO]
[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ ch01-maven ---
[INFO] Nothing to compile - all classes are up to date
[INFO]
[INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ ch01-maven ---
[WARNING] Using platform encoding (GBK actually) to copy filtered resources, i.e. build is platform dependent!
[INFO] Copying 1 resource
[INFO]
[INFO] --- maven-compiler-plugin:3.1:testCompile (default-testCompile) @ ch01-maven ---
[INFO] Nothing to compile - all classes are up to date
[INFO]
[INFO] --- maven-surefire-plugin:2.12.4:test (default-test) @ ch01-maven ---
[INFO] Surefire report directory: D:\Users\ly\Documents\git\mavenwork\Hello\target\surefire-reports

-------------------------------------------------------
 T E S T S
-------------------------------------------------------
Running com.bjpowernode.TestHelloMaven
执行了测试方法testAddNumber
hello maven -addNumber
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.162 sec

Results :

Tests run: 1, Failures: 0, Errors: 0, Skipped: 0

[INFO]
[INFO] --- maven-jar-plugin:2.4:jar (default-jar) @ ch01-maven ---
[INFO]
[INFO] --- maven-install-plugin:2.4:install (default-install) @ ch01-maven ---
[INFO] Installing D:\Users\ly\Documents\git\mavenwork\Hello\target\ch01-maven-1.0-SNAPSHOT.jar to D:\software\apache-maven-3.8.6\repository\com\bjpowernode\ch01-maven\1.0-SNAPSHOT\ch01-maven-1.0-SNAPSHOT.jar
[INFO] Installing D:\Users\ly\Documents\git\mavenwork\Hello\pom.xml to D:\software\apache-maven-3.8.6\repository\com\bjpowernode\ch01-maven\1.0-SNAPSHOT\ch01-maven-1.0-SNAPSHOT.pom
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  5.063 s
[INFO] Finished at: 2022-07-09T17:48:43+08:00
[INFO] ------------------------------------------------------------------------

    如上，

    Installing D:\Users\ly\Documents\git\mavenwork\Hello\target\ch01-maven-1.0-SNAPSHOT.jar to D:\software\apache-maven-3.8.6\repository\com\bjpowernode\ch01-maven\1.0-SNAPSHOT\ch01-maven-1.0-SNAPSHOT.jar

    路径 com\bjpowernode\ch01-maven\1.0-SNAPSHOT ，如下，跟坐标有关

    	<groupId>com.bjpowernode</groupId>
    <artifactId>ch01-maven</artifactId>
    <version>1.0-SNAPSHOT</version>
    <packaging>jar</packaging>
<!--groupId出现点，则使用\（文件夹）分割
	artifactId 独立文件夹
	version 独立文件夹
-->

    结果 ly-20241212142146543

  • 部署 mvn deploy 部署主程序（把本工程打包，按照本工程的坐标保存到本地仓库中，并且保存到私服仓库中，还会自动把项目部署到web容器中

  • 以上命令是可以组合着用的

    λ mvn clean compile
[INFO] Scanning for projects...
[INFO]
[INFO] ---------------------< com.bjpowernode:ch01-maven >---------------------
[INFO] Building ch01-maven 1.0-SNAPSHOT
[INFO] --------------------------------[ jar ]---------------------------------
[INFO]
[INFO] --- maven-clean-plugin:2.5:clean (default-clean) @ ch01-maven ---
[INFO] Deleting D:\Users\ly\Documents\git\mavenwork\Hello\target
[INFO]
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ ch01-maven ---
[WARNING] Using platform encoding (GBK actually) to copy filtered resources, i.e. build is platform dependent!
[INFO] Copying 2 resources
[INFO]
[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ ch01-maven ---
[INFO] Changes detected - recompiling the module!
[WARNING] File encoding has not been set, using platform encoding GBK, i.e. build is platform dependent!
[INFO] Compiling 1 source file to D:\Users\ly\Documents\git\mavenwork\Hello\target\classes
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  2.725 s
[INFO] Finished at: 2022-07-09T17:53:36+08:00
[INFO] ------------------------------------------------------------------------

配置插件 #

  • 常用插件设置

    
    <build>
    		<plugins>
    			<plugin>
    				<groupId>org.apache.maven.plugins</groupId>
    				<artifactId>maven-compiler-plugin</artifactId>
    				<version>3.8.1</version>
    				<configuration>
    					<source>1.8</source>
    					<target>1.8</target>
    				</configuration>
    			</plugin>
    		</plugins>
    </build>
    • 先看一下，目前的版本 maven-compiler-plugin:3.1:compile