Maven将项目打为jar包

maven依赖座标网站

https://mvnrepository.com/

参考https://www.cnblogs.com/dzblog/p/6913809.html

1.新建maven项目，不选择骨架

2.目录结构

3.pom.xml

<?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.east</groupId>
    <artifactId>databaseTest</artifactId>
    <version>1.0-SNAPSHOT</version>
    <!--依赖库-->
    <dependencies>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>6.0.2</version>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.34</version>
        </dependency>
        <dependency>
            <groupId>com.oracle</groupId>
            <artifactId>ojdbc6</artifactId>
            <version>11.2.0.1.0</version>
        </dependency>
        <dependency>
            <groupId>com.oracle</groupId>
            <artifactId>ojdbc14</artifactId>
            <version>10.2.0.3.0</version>
        </dependency>
        <dependency>
            <groupId>com.oracle</groupId>
            <artifactId>ojdbc14</artifactId>
            <version>10.2.0.4.0</version>
        </dependency>
    </dependencies>
    <build>
        <plugins>
            <!--打包jar-->
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-jar-plugin</artifactId>
                <configuration>
                    <archive>
                        <manifestEntries>
                            <!--MANIFEST.MF 中 Class-Path 加入资源文件目录-->
                            <Class-Path>./resources/</Class-Path>
                        </manifestEntries>
                    </archive>
                    <outputDirectory>${project.build.directory}</outputDirectory>
                </configuration>
            </plugin>
            <!--spring boot repackage，依赖 maven-jar-plugin 打包的jar包 重新打包成 spring boot 的jar包-->
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <configuration>
                    <layout>ZIP</layout>
                    <!--使用外部配置文件，jar包里没有资源文件-->
                    <addResources>true</addResources>
                    <outputDirectory>${project.build.directory}</outputDirectory>
                </configuration>
                <executions>
                    <execution>
                        <goals>
                            <goal>repackage</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-assembly-plugin</artifactId>
                <configuration>
                    <descriptors>
                        <descriptor>src/main/assembly/package.xml</descriptor>
                    </descriptors>
                </configuration>
                <executions>
                    <execution>
                        <id>make-assembly</id>
                        <phase>package</phase>
                        <goals>
                            <goal>single</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>

    
</project>

4.package.xml

<?xml version="1.0" encoding="UTF-8"?>
<assembly>
    <id>package</id>
    <formats>
        <format>zip</format>
    </formats>
    <includeBaseDirectory>true</includeBaseDirectory>
    <fileSets>

        <fileSet>
            <directory>${project.basedir}/src/main/resources</directory>
            <outputDirectory>/resources</outputDirectory>
        </fileSet>
        <!-- 把项目自己编译出来的jar文件，打包进zip文件的根目录 -->
        <fileSet>
            <directory>${project.build.directory}</directory>
            <outputDirectory>/</outputDirectory>
            <includes>
                <include>*.jar</include>
            </includes>
        </fileSet>
    </fileSets>
</assembly>

5.DataConnection.java

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.util.Properties;

public class DataConnection {
    private Properties p;
    private Connection conn;
    private FileInputStream f;

    public static void main(String[] args) {
        new DataConnection().loadDriver();
    }

    public void loadDriver() {
        p = new Properties();
        try {
//            f = new FileInputStream(new File("D:\\jdbc.properties"));
//            p.load(f);
            p.load(this.getClass().getResourceAsStream("/jdbc.properties"));
            System.out.println("数据库正在连接，请等待...");
            Class.forName(p.getProperty("Driver").trim());
            System.out.println("驱动加载成功!!!");
            try {
                conn = DriverManager.getConnection(p.getProperty("url").trim(), p.getProperty("user").trim(), p.getProperty("password").trim());

                System.out.println("数据库连接成功！！！");
            } catch (SQLException e) {
                System.out.println("不能连接到指定的数据库，请检查相应的基本信息！！！");
                e.printStackTrace();
            }
        } catch (FileNotFoundException e) {
            System.out.println("指定路径的文件不存在或者无权限访问！！！");
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        } catch (ClassNotFoundException e) {
            System.out.println("无法找到所加载的驱动，或驱动文件不存在！！！");
            e.printStackTrace();
        } finally {
            try {
                conn.close();
            } catch (SQLException e) {
                e.printStackTrace();
            }
        }
    }


}

6.Maven Projects -> package

7.解压.zip文件

8.进入此文件根目录