先贴代码
@Bean
@Override
public RestHighLevelClient elasticsearchClient() {
//连接 HTTPS 协议 使用 账号密码验证
final CredentialsProvider credentialsProvider = new BasicCredentialsProvider();
credentialsProvider.setCredentials(AuthScope.ANY,
new UsernamePasswordCredentials(Constant.ES_USERNAME, Constant.ES_PASSWORD));
RestHighLevelClient client = new RestHighLevelClient(
RestClient.builder(
//使用 new 方式生成 HttpHost 只能生成 HTTP 协议的连接,即使 传入 ‘https://xxx‘ 生成的结果也会变成 ‘http://https://xxx‘
//new HttpHost(Constant.ES_HOST);
HttpHost.create(Constant.ES_HOST)
).setHttpClientConfigCallback(new RestClientBuilder.HttpClientConfigCallback() {
@Override
public HttpAsyncClientBuilder customizeHttpClient(HttpAsyncClientBuilder httpClientBuilder) {
httpClientBuilder.disableAuthCaching();
return httpClientBuilder.setDefaultCredentialsProvider(credentialsProvider);
}
})
);
// 原生连接本地
/*RestHighLevelClient client = new RestHighLevelClient(
RestClient.builder(
new HttpHost("localhost", 9200, "http")));
return client;*/
}
由于运维方提供的服务器域名地址为 https 协议,没有留意,导致代码测试时,遇到如下情况
- postman 测试直连 es 进行 CRUD 返回结果一切正常
- 后端运行代码后,查询正常,但是增删改报出异常 308 ,以及无法解析返回响应体
ElasticsearchStatusException[Unable to parse response body]
- postman 中把 https 改为 http 依旧可以正常操作,但是后端依旧报一样的错