Spring Boot+Maven将配置文件打包到Jar包外方便运维修改配置

女爷i 2022-09-04 02:53 1阅读 0赞

> **导语**  
>   在小公司使用Spring Boot部署上线，因为环境太多，导致运维开发相互之间重复的打包jar包运行到不同的环境上，使用容器技术又显得有点浪费，所以就先将配置文件打包的jar包外面。然后运维同学就可以自己手动修改配置文件，而不需要每次都重新打包jar。

## 首先创建一个项目 ##

创建项目，项目结构如下，编写一个Controller的测试类  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L25paHVpMTIz_size_16_color_FFFFFF_t_70_pic_center]

## 编写测试类 ##

@RestController
    public class TestController { 
        @GetMapping("test")
        public String test(){ 
            return "hello world";
        }
    }

## 修改配置文件 ##

server:
      port: 4567

## 启动项目测试对应数据 ##

测试项目启动之后会发现使用的本地配置的4567端口启动  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L25paHVpMTIz_size_16_color_FFFFFF_t_70_pic_center 1]

## 打包项目 ##

### 修改POM配置 ###

修改配置文件将原来的build中的内容替换为下面内容

<build>
            <plugins>
    
                <plugin>
                    <groupId>org.apache.maven.plugins</groupId>
                    <artifactId>maven-dependency-plugin</artifactId>
                    <executions>
                        <execution>
                            <id>copy-dependencies</id>
                            <phase>package</phase>
                            <goals>
                                <goal>copy-dependencies</goal>
                            </goals>
                            <configuration>
                                <outputDirectory>${project.build.directory}/app/lib</outputDirectory>
                                
                                <excludeTransitive>false</excludeTransitive>
                                
                                <stripVersion>false</stripVersion>
                            </configuration>
                        </execution>
                    </executions>
                </plugin>
                
                <plugin>
                    <groupId>org.apache.maven.plugins</groupId>
                    <artifactId>maven-resources-plugin</artifactId>
                    <version>2.7</version>
                    <executions>
                        <execution>
                            <id>copy-config</id>
                            <phase>package</phase>
                            <goals>
                                <goal>copy-resources</goal>
                            </goals>
                            <configuration>
                                <outputDirectory>${project.build.directory}/app/config</outputDirectory>
                                <resources>
                                    <resource>
                                        <directory>src/main/resources</directory>
                                        <includes>
                                            <exclude>**/*.xml</exclude>
                                            <exclude>**/*.conf</exclude>
                                            <exclude>**/*.properties</exclude>
                                            <exclude>**/*.yml</exclude>
                                        </includes>
                                        <filtering>true</filtering>
                                    </resource>
                                </resources>
                                <encoding>UTF-8</encoding>
                            </configuration>
                        </execution>
                    </executions>
                </plugin>
                
                <plugin>
                    <groupId>org.apache.maven.plugins</groupId>
                    <artifactId>maven-jar-plugin</artifactId>
                    <version>3.1.0</version>
                    <configuration>
                        <outputDirectory>${project.build.directory}/app/bin</outputDirectory>
                        
                        <archive>
                            
                            <manifest>
                                <addClasspath>true</addClasspath>
                                <classpathPrefix>../lib/</classpathPrefix>
                                <mainClass>com.example.pk.PkApplication</mainClass>
                            </manifest>
                            
                            <manifestEntries>
                                <Class-Path>../config/</Class-Path>
                            </manifestEntries>
                        </archive>
                        <excludes>
                            <exclude>**/*.xml</exclude>
                            <exclude>**/*.conf</exclude>
                            <exclude>**/*.yml</exclude>
                            <exclude>**/*.properties</exclude>
                            <exclude>**/*/*.json</exclude>
                        </excludes>
                    </configuration>
                </plugin>
            </plugins>
        </build>

## 点击package打包项目 ##

点击打包按钮之后项目在target目录中的内容发生变化。在app包中有bin、config、lib三个目录中分别放的就是依赖文件  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L25paHVpMTIz_size_16_color_FFFFFF_t_70_pic_center 2]

## 修改配置运行打包文件 ##

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