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Spring自定义starter

  1. 引入依赖
  2. 编写目标Bean类
  3. 编写Properties类
  4. 编写AutoConfiguration类
  5. 编写spring.factories
  6. 打包后使用
  7. 参考

引入依赖

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dependencies {
    implementation 'org.springframework.boot:spring-boot-autoconfigure:2.3.2.RELEASE'
    annotationProcessor 'org.springframework.boot:spring-boot-configuration-processor:2.3.2.RELEASE'
}

编写目标Bean类

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public class UserService {
    @Getter
    @Setter
    String username;
}

编写Properties类

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@ConfigurationProperties(prefix = "com.cyh.user")
public class UserProperties {
    @Getter
    @Setter
    private String username;
}

编写AutoConfiguration类

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@Configuration
@EnableConfigurationProperties(UserProperties.class)
public class UserAutoConfiguration {
    @Bean
    public UserService userService(UserProperties userProperties) {
        UserService userService = new UserService();
        userService.setUsername(userProperties.getUsername());
        return userService;
    }
}

编写spring.factories

在resources新建文本文件META-INF/spring.factories

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org.springframework.boot.autoconfigure.EnableAutoConfiguration = \
  com.cyh.user.UserAutoConfiguration

打包后使用

项目引用该jar包后可直接使用@Autowired自动注入

参考

  技术 / Java