第二个Maven工程：解决依赖问题

浅浅的花香味﹌ 2023-06-16 15:55 99阅读 0赞

①工程名：HelloFriend

② 目录结构

HelloFriend
    		|---src
    		|---|---main
    		|---|---|---java
    		|---|---|---resources
    		|---|---test
    		|---|---|---java
    		|---|---|---resources
    		|---pom.xml

③POM文件

<?xml version="1.0" ?>
    <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/xsd/maven-4.0.0.xsd">
    	<modelVersion>4.0.0</modelVersion>
    	<groupId>com.atguigu.maven</groupId>
    	<artifactId>HelloFriend</artifactId>
    	<version>0.0.1-SNAPSHOT</version>
    	<name>HelloFriend</name>
    	
    	<dependencies>
    		<dependency>
    			<groupId>junit</groupId>
    			<artifactId>junit</artifactId>
    			<version>4.0</version>
    			<scope>test</scope>
    		</dependency>		
    		
    		<dependency>
    			<groupId>com.atguigu.maven</groupId>
    			<artifactId>Hello</artifactId>
    			<version>0.0.1-SNAPSHOT</version>
    			<scope>compile</scope>
    		</dependency>
    		
    	</dependencies>
    </project>

④主程序：在src/main/java/com/atguigu/maven目录下新建文件HelloFriend.java

package com.atguigu.maven;	
    		import com.atguigu.maven.Hello;
    		public class HelloFriend {
        
    			public String sayHelloToFriend(String name){
        
    				Hello hello = new Hello();
    				String str = hello.sayHello(name)+" I am "+this.getMyName();
    				System.out.println(str);
    				return str;
    			}
    			public String getMyName(){
        
    				return "John";
    			}
    		}

⑤测试程序：在/src/test/java/com/atguigu/maven目录下新建测试文件HelloFriendTest.java

package com.atguigu.maven;	
    		import static junit.framework.Assert.assertEquals;
    		import org.junit.Test;
    		import com.atguigu.maven.Hello;
    		
    		public class HelloFriendTest {
        
    			@Test
    			public void testHelloFriend(){
        
    				HelloFriend helloFriend = new HelloFriend();
    				String results = helloFriend.sayHelloToFriend("litingwei");
    				assertEquals("Hello litingwei! I am John",results);	
    			}
    		}

⑥ 运行Maven命令  
mvn compile 编译  
![在这里插入图片描述][20191127101238289.png]

⑦ cd Hello目录，然后：  
mvn install 安装

⑧ 解决依赖的关键点：

*  依赖坐标  
    ![在这里插入图片描述][20191127101159536.png]  
    备注： < scope >compile< /scope> 表示依赖范围
 *  mvn install 安装

[20191127101238289.png]: https://img-blog.csdnimg.cn/20191127101238289.png
[20191127101159536.png]: https://img-blog.csdnimg.cn/20191127101159536.png