spring-data-neo4j 4.1.0.M1 上的 Neo4JRequest

Question

以下参考文档here有在节点插入后更新空间索引的代码

final CloseableHttpClient httpClient = HttpClients.createDefault();

@Bean
ApplicationListener<AfterSaveEvent> afterSaveEventApplicationListener() {
return new ApplicationListener<AfterSaveEvent>() {
    @Override
    public void onApplicationEvent(AfterSaveEvent event) {
        Neo4jRequest<String> neo4jRequest = new DefaultRequest(httpClient);
        if(event.getEntity() instanceof Person) {
            Person person = (Person) event.getEntity();
            //Construct the JSON statements
            neo4jRequest.execute(endpoint,json);
            }
        }
    };
}

问题si： Neo4JRequest 接口在哪里？它似乎从包裹中消失了，没有留下关于原因和方式的痕迹。

有人对索引更新有同样的问题吗？

谢谢

Answer 1

很遗憾，文档中的这一部分未针对 4.1 M1 进行更新。以下是如何在 SDN 4.1 中执行此操作（参见 https://github.com/spring-projects/spring-data-neo4j/issues/332）

 @Bean
    ApplicationListener<AfterSaveEvent> afterSaveEventApplicationListener() {
        return new ApplicationListener<AfterSaveEvent>() {
            @Override
            public void onApplicationEvent(AfterSaveEvent event) {

                if(event.getEntity() instanceof Person) {
                    Person person = (Person) event.getEntity();
                    String json = "construct the JSON";

                    HttpPost httpPost = new HttpPost(Components.driver().getConfiguration().getURI() + "/db/data/index/node/" + indexName);

                    try {
                        httpPost.setEntity(new StringEntity(json.toString()));
                       HttpRequest.execute(httpClient, httpPost, Components.driver().getConfiguration().getCredentials());
                    } catch (Exception e) {
                       //handle this
                    } 

                }
            }
        };
    }

spring-data-neo4j 4.1.0.M1 上的 Neo4JRequest

Neo4JRequest on spring-data-neo4j 4.1.0.M1

neo4j

spring-data-neo4j-4