java.lang.IllegalStateException: availableProcessors is already set to [8], rejecting [8]

spring boot项目整合elasticsearch，启动报错：

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'elasticsearchClient' defined in class path resource [org/springframework/boot/autoconfigure/data/elasticsearch/ElasticsearchAutoConfiguration.class]: Bean instantiation via factory method failed; 
nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.elasticsearch.client.transport.TransportClient]: Factory method 'elasticsearchClient' threw exception;
 nested exception is java.lang.IllegalStateException: availableProcessors is already set to [8], rejecting [8]

各种百度，大多是建议在启动类的main方法中添加：

 System.setProperty("es.set.netty.runtime.available.processors", "false");

即将main方法改写为：

  /**
     * 入口主函数
     *
     * @param args
     */
    public static void main(String[] args) {
        //解决netty冲突
        System.setProperty("es.set.netty.runtime.available.processors", "false");
        SpringApplication.run(BossApplication.class, args);
    }

但是我这边这样改木有用。
后来，找到了
java.lang.IllegalStateException: availableProcessors is already set to [8], rejecting [8]
这篇博客，参考里头的方案，在启动类中添加了一个初始化方法：

@PostConstruct
    void init() {
        System.setProperty("es.set.netty.runtime.available.processors", "false");
    }

解决~