基于属性的Spring默认自动配置

Question

我想应用基于application.yml属性的默认弹簧安全自动配置。我认为我首先排除了自动配置类，然后将它作为一个导入添加到以该属性为条件的配置类中：

MyApplication.class:

@SpringBootApplication(exclude = {SecurityAutoConfiguration.class})
public class MyApplication {

  public static void main(String[] args) {
    SpringApplication.run(MyApplication.class, args);
  }
}

ApplicationProperties.class

@Getter
@Setter
@Configuration
@EnableConfigurationProperties
@ConfigurationProperties(prefix = "myapplication")
public class ApplicationProperties {

  private boolean security;
}

application.yml:

---
myapplication:
  security: true

SecurityConfig.class:

@Configuration
@Import(SecurityAutoConfiguration.class)
@ConditionalOnProperty(prefix = "myapplication", name = "security", havingValue = "true")
public class WebSecurityConfig extends WebSecurityConfigurerAdapter {
  ....
}

但是，SecurityAutoConfiguration类从未导入：

Exclusions:
-----------

    org.springframework.boot.autoconfigure.security.servlet.SecurityAutoConfiguration

那我怎样才能达到预期的结果呢？

更新

有趣的是，如果我对KafkaAutoConfiguration.class做了完全相同的工作，正如我所期望的-所有的卡夫卡bean都会被加载和自动配置。

   KafkaAutoConfiguration matched:
      - @ConditionalOnClass found required class 'org.springframework.kafka.core.KafkaTemplate' (OnClassCondition)

   KafkaAutoConfiguration#kafkaAdmin matched:
      - @ConditionalOnMissingBean (types: org.springframework.kafka.core.KafkaAdmin; SearchStrategy: all) did not find any beans (OnBeanCondition)

   KafkaAutoConfiguration#kafkaConsumerFactory matched:
      - @ConditionalOnMissingBean (types: org.springframework.kafka.core.ConsumerFactory; SearchStrategy: all) did not find any beans (OnBeanCondition)

   KafkaAutoConfiguration#kafkaProducerFactory matched:
      - @ConditionalOnMissingBean (types: org.springframework.kafka.core.ProducerFactory; SearchStrategy: all) did not find any beans (OnBeanCondition)

   KafkaAutoConfiguration#kafkaProducerListener matched:
      - @ConditionalOnMissingBean (types: org.springframework.kafka.support.ProducerListener; SearchStrategy: all) did not find any beans (OnBeanCondition)

   KafkaAutoConfiguration#kafkaTemplate matched:
      - @ConditionalOnMissingBean (types: org.springframework.kafka.core.KafkaTemplate; SearchStrategy: all) did not find any beans (OnBeanCondition)

Exclusions:
-----------
    org.springframework.boot.autoconfigure.kafka.KafkaAutoConfiguration

Answer 1

将其中一个添加到您的类中：

如果你想让这个类工作，如果你是SET THE VALUE OF IT和IT IS TRUE的话。

@ConditionalOnProperty(prefix = "myapplication", value = "secured", havingValue = "true", matchIfMissing = false)

如果你想让这个类工作，如果你是DO NOT SET THE VALUE IN THE YAML FILE或IT IS SET BUT THE THE VALUE IS FALSE

@ConditionalOnProperty(prefix = "myapplication", value = "secured", havingValue = "false", matchIfMissing = true)

因此，例如，如果您想为您的项目使用spring安全性，但有时您希望通过设置myapplication.secured值来关闭它，那么您将有如下所示的类：

您的项目将使用这个类，以防不需要安全性(myapplication.secured可能丢失或设置为false)：

@Configuration
@EnableWebSecurity
@ConditionalOnProperty(prefix = "myapplication", value = "secured", havingValue = "false", matchIfMissing = true)
public class NoSpringSecurity extends WebSecurityConfigurerAdapter {

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http.csrf().disable();
    }

}

只有当myapplication.enabled=true在您的application.yaml文件中时，您的项目才会使用它：

@Configuration
@EnableWebSecurity
@EnableGlobalMethodSecurity(prePostEnabled = true, jsr250Enabled = true, securedEnabled = true)
@ConditionalOnProperty(prefix = "myapplication", value = "secured", havingValue = "true", matchIfMissing = false)
@RequiredArgsConstructor
public class SpringSecuritz extends WebSecurityConfigurerAdapter {

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        super.configure(http);
        http
            .csrf()
                .disable()
        .authorizeRequests()
            .antMatchers("/**")
                .authenticated();
    }