Question

您好我正在尝试使用spring RestTemplate在弹性搜索中搜索数据。 ElasticSearch有用户名和密码，我想通过json搜索。

我为此编写了代码，但我没有得到任何结果或异常。我这辈子第一次这样做，很抱歉，如果有一些愚蠢的错误。

@Override
    protected List<JobPosts> doInBackground(Object[] objects) {
        List list = null;

        try {

            SearchForm searchForms = (SearchForm) objects[0];




            String plainCreds = "******:********";

            final String url = "*******";
            RestTemplate restTemplate = new RestTemplate();
            restTemplate.getMessageConverters().add(new MappingJackson2HttpMessageConverter());

            HttpEntity<String> request = new HttpEntity<>(searchJson, headers);
            Log.d("location", "before exchange");
            ResponseEntity<JobPosts[]> response = restTemplate.exchange(url, HttpMethod.GET, request, JobPosts[].class);
            JobPosts[] jobPosts = response.getBody();

            Log.d("location", "after exchange");
            list = Arrays.asList(jobPosts);


        } catch (Exception e) {
            Log.d("location", e.getMessage());
        }

Answer 1

与其他关系数据库不同，您不需要Spring RestTemplate来查询弹性数据库。 ElasticSearch附带内置的Java API库。您可以直接使用这些函数来创建查询并获得结果。

结帐此链接。它包含有关如何使用API的文档。

Elastic Search Java API 5.1

Answer 2

我建议使用Tanay提到的ES Java API。

像这样设置你的连接

//Create the ES clien
org.elasticsearch.client.Client client;

//Setup the connection. Make sure you use port 9300 and not 9200 here.
client = new PreBuiltTransportClient(Settings.EMPTY)
                    .addTransportAddress(new InetSocketTransportAddress(InetAddress.getByName("localhost"), "9300"));

//Interact with your index, for example getting an object by its ID
GetResponse response = client.prepareGet("index", "type", "id")
    .setOperationThreaded(false)
    .get();

//Close the connection
client.close();

如何在android中使用spring resttemplate在弹性搜索中通过Json进行搜索

2 个答案: