初始化
编辑初始化
编辑一个 RestClient 实例可以通过相应的 RestClientBuilder 类构建，该类可以通过 RestClient#builder(HttpHost...) 静态方法创建。唯一必需的参数是一个或多个客户端将与其通信的主机，以 HttpHost 实例的形式提供，如下所示
RestClient restClient = RestClient.builder(
new HttpHost("localhost", 9200, "http"),
new HttpHost("localhost", 9201, "http")).build();
RestClient 类是线程安全的，理想情况下与使用它的应用程序具有相同的生命周期。当不再需要它时，关闭它非常重要，以便它使用的所有资源以及底层 http 客户端实例及其线程都能正确释放
restClient.close();
RestClientBuilder 还允许在构建 RestClient 实例时可选地设置以下配置参数
RestClientBuilder builder = RestClient.builder(
new HttpHost("localhost", 9200, "http"));
Header[] defaultHeaders = new Header[]{new BasicHeader("header", "value")};
builder.setDefaultHeaders(defaultHeaders);
RestClientBuilder builder = RestClient.builder(
new HttpHost("localhost", 9200, "http"));
builder.setFailureListener(new RestClient.FailureListener() {
@Override
public void onFailure(Node node) {
}
});
RestClientBuilder builder = RestClient.builder(
new HttpHost("localhost", 9200, "http"));
builder.setNodeSelector(NodeSelector.SKIP_DEDICATED_MASTERS);
RestClientBuilder builder = RestClient.builder(
new HttpHost("localhost", 9200, "http"));
builder.setRequestConfigCallback(
new RestClientBuilder.RequestConfigCallback() {
@Override
public RequestConfig.Builder customizeRequestConfig(
RequestConfig.Builder requestConfigBuilder) {
return requestConfigBuilder.setSocketTimeout(10000);
}
});
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设置一个回调，允许修改默认请求配置（例如请求超时、身份验证或 |
RestClientBuilder builder = RestClient.builder(
new HttpHost("localhost", 9200, "http"));
builder.setHttpClientConfigCallback(new HttpClientConfigCallback() {
@Override
public HttpAsyncClientBuilder customizeHttpClient(
HttpAsyncClientBuilder httpClientBuilder) {
return httpClientBuilder.setProxy(
new HttpHost("proxy", 9000, "http"));
}
});
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设置一个回调，允许修改 http 客户端配置（例如通过 ssl 进行加密通信，或 |