【添加 Spring 仓库】

两种地方添加 Spring 仓库

<project>
  ...
  
  <!-- ✅ 添加仓库：推荐放在 dependencies 前或后 -->
  <repositories>
    <repository>
      <id>spring-releases</id>
      <url>https://repo.spring.io/release</url>
    </repository>
    <repository>
      <id>spring-milestones</id>
      <url>https://repo.spring.io/milestone</url>
    </repository>
    <repository>
      <id>spring-snapshots</id>
      <url>https://repo.spring.io/snapshot</url>
      <snapshots>
        <enabled>true</enabled>
      </snapshots>
    </repository>
  </repositories>

  ...
</project>

<profiles>
  <profile>
    <id>spring-repo</id>
    <repositories>
      <repository>
        <id>spring-releases</id>
        <url>https://repo.spring.io/release</url>
      </repository>
      <repository>
        <id>spring-milestones</id>
        <url>https://repo.spring.io/milestone</url>
      </repository>
      <repository>
        <id>spring-snapshots</id>
        <url>https://repo.spring.io/snapshot</url>
        <snapshots>
          <enabled>true</enabled>
        </snapshots>
      </repository>
    </repositories>
  </profile>
</profiles>

<activeProfiles>
  <activeProfile>spring-repo</activeProfile>
</activeProfiles>

注意要放在 标签内部。