Springboot源码分析之项目结构

摘要:

无论是从IDEA还是其他的SDS开发工具亦或是https://start.spring.io/ 进行解压,我们都会得到同样的一个pom.xml文件

4.0.0

org.springframework.boot
spring-boot-starter-parent
2.1.6.RELEASE

    <groupId>com.github.dqqzj</groupId>
    <artifactId>springboot</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>springboot</name>
    <packaging>jar</packaging>
    <description>Demo project for Spring Boot</description>

    <properties>
        <java.version>1.8</java.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>

`parent`标签的含义

找到本地仓库的spring-boot-starter-parent 坐标

4.0.0

org.springframework.boot
spring-boot-dependencies
2.1.6.RELEASE
../../spring-boot-dependencies

spring-boot-starter-parent
pom
Spring Boot Starter Parent
Parent pom providing dependency and plugin management for applications
built with Maven
https://projects.spring.io/spring-boot/#/spring-boot-starter-parent

<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
<resource.delimiter>@</resource.delimiter>
<maven.compiler.source>${java.version}</maven.compiler.source>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.target>${java.version}</maven.compiler.target>

true
${basedir}/src/main/resources

**/application*.yml
**/application*.yaml
**/application*.properties

${basedir}/src/main/resources

**/application*.yml
**/application*.yaml
**/application.properties

org.jetbrains.kotlin
kotlin-maven-plugin
${kotlin.version}

compile
compile

compile

test-compile
test-compile

test-compile

${java.version}
true

maven-compiler-plugin

true

maven-failsafe-plugin

integration-test
verify

${project.build.outputDirectory}

maven-jar-plugin

${start-class}
true

maven-war-plugin

${start-class}
true

org.codehaus.mojo
exec-maven-plugin

${start-class}

maven-resources-plugin

${resource.delimiter}

false

pl.project13.maven
git-commit-id-plugin

revision

true
yyyy-MM-dd'T'HH:mm:ssZ
true
${project.build.outputDirectory}/git.properties

org.springframework.boot
spring-boot-maven-plugin

repackage

repackage

${start-class}

maven-shade-plugin

package

shade

META-INF/spring.handlers

META-INF/spring.factories

META-INF/spring.schemas

${start-class}

org.springframework.boot
spring-boot-maven-plugin
2.1.6.RELEASE

true
true

:

META-INF/.SF
META-INF/.DSA
META-INF/.RSA

org.eclipse.m2e
lifecycle-mapping
1.0.0

org.codehaus.mojo
flatten-maven-plugin
[1.0.0,)

flatten

org.apache.maven.plugins
maven-checkstyle-plugin
[3.0.0,)

check

关注点

  <parent>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-dependencies</artifactId>
      <version>2.1.6.RELEASE</version>
      <relativePath>../../spring-boot-dependencies</relativePath>
    </parent>

说明我们的工程可以进行改造进行替换掉原来工程的parent标签.

<plugin>
          <groupId>org.springframework.boot</groupId>
          <artifactId>spring-boot-maven-plugin</artifactId>
          <executions>
            <execution>
              <id>repackage</id>
              <goals>
                <goal>repackage</goal>
              </goals>
            </execution>
          </executions>
          <configuration>
            <mainClass>${start-class}</mainClass>
          </configuration>
        </plugin>

repackage必须要有否则打jar包时候无法正常启动.
Springboot源码分析之项目结构

在配置文件加上repackage即可

<build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <executions>
                    <execution>
                        <goals>
                            <goal>repackage</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>

IDEA自带maven工具

Springboot源码分析之项目结构

mvnw是基于linux的shell脚本命令

mvnw.cmd是基于windows的脚本命令

.mvn包含了maven下载路径以及版本等信息

也就是说我们完全不用自己下载maven而是可以直接使用IDEA给我们提供的工具即可，只不过通常不会这么做。

`repackage`的作用

官方文档
正常情况下打包会生成springboot-0.0.1-SNAPSHOT.jar,original,springboot-0.0.1-SNAPSHOT.jar这样的2个文件，而repackage的作用就是将springboot-0.0.1-SNAPSHOT.jar.original重新打包为我们可以执行的springboot-0.0.1-SNAPSHOT.jar

秒客网

Springboot源码分析之项目结构

Springboot源码分析之项目结构

摘要:

`parent`标签的含义

关注点

`repackage`的作用

相关文章

Springboot源码分析之项目结构

Springboot源码分析之项目结构

摘要:

parent标签的含义

关注点

repackage的作用

相关文章

`parent`标签的含义

`repackage`的作用