最近在写java，由于之前一直写python，对java知之甚少，也不用maven，今天用maven打jar包，各种坎坷，有打不进去依赖的，有maven报ERROR的，网上的资料零零碎碎，黏贴进pom文件各种报错，下面总结一下我正确的打依赖jar包方式，pom文件如下：

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<?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>
<groupId>com.xxxx</groupId>
<artifactId>es-core</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>jar</packaging>
<name>es-core</name>
<properties>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
<dependency>
<groupId>org.elasticsearch.client</groupId>
<artifactId>transport</artifactId>
<version>6.4.2</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>org.elasticsearch.client</groupId>
<artifactId>elasticsearch-rest-high-level-client</artifactId>
<version>6.4.2</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-api</artifactId>
<version>2.9.1</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-core</artifactId>
<version>2.9.1</version>
<scope>compile</scope>
</dependency>
</dependencies>
<build>
<plugins>
<!--<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
<version>1.2.1</version>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>shade</goal>
</goals>
<configuration>
<transformers>
<transformer
implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
<mainClass>com.study.App</mainClass>
</transformer>
</transformers>
</configuration>
</execution>
</executions>
</plugin>-->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<configuration>
<archive>
<manifest>
<mainClass>com.study.App</mainClass>
</manifest>
</archive>
</configuration>
</plugin>
<plugin>
<groupId>com.jolira</groupId>
<artifactId>onejar-maven-plugin</artifactId>
<version>1.4.4</version>
<executions>
<execution>
<configuration>
<attachToBuild>true</attachToBuild>
<classifier>onejar</classifier>
</configuration>
<goals>
<goal>one-jar</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>

运行package之后，会生成两个jar文件，一个xxxx.jar, 另一个是xxxx.one-jar.jar, 其中xxxx.jar是不含依赖的jar包，xxxx.one-jar.jar是含依赖的jar包，直接运行含依赖的jar包就行（PS：注意修改其中的<mainClass></mainClass>标签中的内容）

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maven之打依赖jar包

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