这是行不通的，因为这个属性注入是基于应该保存@ConfigurationProperties的对象上的getter和setter的。定义一个保存所需属性的类，如下所示：

@ConfigurationProperties(prefix = "kafka.producer")
public class MyKafkaProducerProperties {

  private int foo;

  private string bar;

  // Getters and Setter for foo and bar

}

然后在您的配置中使用它，如下所示

@Configuration
@EnableConfigurationProperties(MyKafkaProducerProperties.class)
public class FactoryBeanAppConfig {

  @Bean
  public Producer<String, String> producer(MyKafkaProducerProperties kafkaProperties) throws Exception {
    Properties properties = new Properties();
    properties.setProperty("Foo", kafkaProperties.getFoo());
    properties.setProperty("Bar", kafkaProperties.getBar());
    Producer<String, String> producer = new KafkaProducer<String, String>(properties);
    return producer;
  }
}

更新

既然您已经说过不希望将每个属性都表示为java代码，那么您可以使用HashMap作为@ConfigurationProperties中唯一的属性

@ConfigurationProperties(prefix = "kafka")
public class MyKafkaProducerProperties {

  private Map<String, String> producer= new HashMap<String, String>();

  public Map<String, String> getProducer() {
    return this.producer;
  }
}

在您的application.properties中，您可以如下指定属性：

kafka.producer.foo=hello
kafka.producer.bar=world

在您的配置中，您可以这样使用它：

@Configuration
@EnableConfigurationProperties(MyKafkaProducerProperties.class)
public class FactoryBeanAppConfig {

  @Bean
  public Producer<String, String> producer(MyKafkaProducerProperties kafkaProperties) throws Exception {

    Properties properties = new Properties();

    for ( String key : kafkaProperties.getProducer().keySet() ) {
     properties.setProperty(key, kafkaProperties.getProducer().get(key));
    }

    Producer<String, String> producer = new KafkaProducer<String, String>(properties);
    return producer;
  }
}

您可以定义使用@ConfigurationProperties注解的新Bean，如下所示：

@Bean
@ConfigurationProperties(prefix = "kafka")
public Properties kafkaProperties() {
    return new Properties();
}

@Bean
public Producer<String, String> producer() throws Exception {
    return new KafkaProducer<String, String>(kafkaProperties());
}

（取自https://stackoverflow.com/a/50810923/500478）

@自动布线环境;{返回新属性（）{ @覆盖公共字符串getProperty（字符串名称）{返回环境.getProperty（名称）;} }; }