1. 在pom文件中对各个插件进行配置
<?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/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.1.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.skd</groupId>
<artifactId>client</artifactId>
<version>0.0.1</version>
<name>client</name>
<description>client for file monitor</description>
<properties>
<encoding>UTF-8</encoding>
<maven-compiler-plugin-version>3.8.0</maven-compiler-plugin-version>
<maven-jar-plugin-version>3.1.0</maven-jar-plugin-version>
<maven-source-plugin-version>3.0.1</maven-source-plugin-version>
<maven-assembly-plugin-version>3.1.0</maven-assembly-plugin-version>
<maven-dependency-plugin-version>3.1.0</maven-dependency-plugin-version>
<maven-resources-plugin-version>3.1.0</maven-resources-plugin-version>
</properties>
<dependencies>
<!--spring boot-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<!--test-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<!--log4j2-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-log4j2</artifactId>
</dependency>
<!--http client-->
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpclient</artifactId>
<version>4.5.3</version>
</dependency>
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpmime</artifactId>
<version>4.5.3</version>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>3.1</version>
</dependency>
<dependency>
<groupId>commons-io</groupId>
<artifactId>commons-io</artifactId>
<version>2.4</version>
</dependency>
<!--json-->
<dependency>
<groupId>net.sf.json-lib</groupId>
<artifactId>json-lib</artifactId>
<version>2.2.2</version>
<classifier>jdk15</classifier>
</dependency>
<!-- lombok -->
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
</dependency>
<!--configuration-->
<!-- 通过资源文件注入属性配置 -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-configuration-processor</artifactId>
<optional>true</optional>
</dependency>
</dependencies>
<build>
<!-- 生成的项目jar包的名字-->
<finalName>client</finalName>
<!--源代码路径-->
<sourceDirectory>src/main/java</sourceDirectory>
<!--maven-resources-plugin 插件打包resource文件时会参考此节点的配置-->
<resources>
<!--这两个resource节点负责把配置文件拷贝到classes目录下,保证运行时可以找到配置文件-->
<resource>
<!--开启filter功能,将路径中的属性名替换为对应的属性值-->
<filtering>true</filtering>
<directory>src/main/resources</directory>
<includes>
<include>**/application*.yml</include>
<include>**/application*.yaml</include>
<include>**/application*.properties</include>
</includes>
</resource>
<resource>
<directory>src/main/resources</directory>
<excludes>
<exclude>**/application*.yml</exclude>
<exclude>**/application*.yaml</exclude>
<exclude>**/application*.properties</exclude>
</excludes>
</resource>
<!--compile 和 package 时都会使用resource节点的配置-->
<!--resource 节点可通过配置将制定目录的文件在打包后拷贝到制定目录-->
<!--如果只有这一个resource节点,或者如果把这个resource节点配置在最前面,则会直接把配置文件打包到conf目录classes目录下不会有配置文件,导致IDEA运行时找不到配置文件-->
<resource>
<directory>src/main/resources</directory>
<targetPath>${project.build.directory}/conf</targetPath>
</resource>
</resources>
<plugins>
<!--编译插件-->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>${maven-compiler-plugin-version}</version>
<configuration>
<encoding>${encoding}</encoding>
<source>${java.version}</source>
<target>${java.version}</target>
</configuration>
</plugin>
<!--将项目的源代码的class文件打包到一个jar包-->
<!--jar包默认在target目录下-->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<version>${maven-jar-plugin-version}</version>
<configuration>
<archive>
<!-- 生成的jar中,不要包含pom.xml和pom.properties这两个文件 -->
<addMavenDescriptor>false</addMavenDescriptor>
<manifest>
<!-- 是否要把第三方jar放到manifest的classpath中 -->
<addClasspath>true</addClasspath>
<!-- 生成的manifest中classpath的前缀,因为要把第三方jar放到lib目录下,所以classpath的前缀是lib/ -->
<classpathPrefix>lib/</classpathPrefix>
<!-- 应用的main class -->
<mainClass>com.skd.client.ClientApplication</mainClass>
</manifest>
<!--将资源文件目录添加到classpath中,打包后运行项目时则会在该目录下加载配置文件-->
<manifestEntries>
<Class-Path>conf/</Class-Path>
</manifestEntries>
</archive>
<!--项目打包为jar包时排除这些文件,如果将配置文件打到jar包,则会优先读取jar包中的配置文件,不会读取conf目录下的配置文件-->
<!--注意这玩意从编译结果目录开始算目录结构-->
<excludes>
<exclude>/*.yaml</exclude>
<exclude>/*.yml</exclude>
<exclude>/*.xml</exclude>
</excludes>
</configuration>
</plugin>
<!-- 用于拷贝maven依赖的plugin -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<version>${maven-dependency-plugin-version}</version>
<executions>
<execution>
<id>copy-dependencies</id>
<phase>package</phase>
<goals>
<goal>copy-dependencies</goal>
</goals>
<configuration>
<!-- 把依赖的所有maven jar包拷贝到lib目录中 -->
<outputDirectory>${project.build.directory}/lib</outputDirectory>
</configuration>
</execution>
</executions>
</plugin>
<!-- 用于拷贝resource的plugin -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-resources-plugin</artifactId>
<version>${maven-resources-plugin-version}</version>
</plugin>
</plugins>
</build>
</project>
2. 打包后的 target 目录结构
conf:资源文件目录
lib:依赖的jar包目录
demo-findName:将class文件打包生成的jar包
3. 运行项目
把上述三个目录文件放在同一级目录下,
执行 java -jar 生成的jar包名字
即可启动项目
4. 实验发现,如果jar包中有配置文件,则优先读取jar包中的配置文件,如果要使用外部的配置文件,则需要将jar包中的配置文件删除。