本文整理汇总了Java中org.apache.http.impl.client.HttpClientBuilder.setKeepAliveStrategy方法的典型用法代码示例。如果您正苦于以下问题：Java HttpClientBuilder.setKeepAliveStrategy方法的具体用法？Java HttpClientBuilder.setKeepAliveStrategy怎么用？Java HttpClientBuilder.setKeepAliveStrategy使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类org.apache.http.impl.client.HttpClientBuilder的用法示例。
在下文中一共展示了HttpClientBuilder.setKeepAliveStrategy方法的5个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: testHttpRequestGet
import org.apache.http.impl.client.HttpClientBuilder; //导入方法依赖的package包/类
@Test
public void testHttpRequestGet() throws Exception {
RequestConfig.Builder req = RequestConfig.custom();
req.setConnectTimeout(5000);
req.setConnectionRequestTimeout(5000);
req.setRedirectsEnabled(false);
req.setSocketTimeout(5000);
req.setExpectContinueEnabled(false);
HttpGet get = new HttpGet("http://127.0.0.1:54322/login");
get.setConfig(req.build());
PoolingHttpClientConnectionManager cm = new PoolingHttpClientConnectionManager();
cm.setDefaultMaxPerRoute(5);
HttpClientBuilder builder = HttpClients.custom();
builder.disableAutomaticRetries();
builder.disableRedirectHandling();
builder.setConnectionTimeToLive(5, TimeUnit.SECONDS);
builder.setKeepAliveStrategy(DefaultConnectionKeepAliveStrategy.INSTANCE);
builder.setConnectionManager(cm);
CloseableHttpClient client = builder.build();
String s = client.execute(get, new ResponseHandler<String>() {
@Override
public String handleResponse(HttpResponse response) throws ClientProtocolException, IOException {
assertEquals(301, response.getStatusLine().getStatusCode());
return "success";
}
});
assertEquals("success", s);
}
示例2: getPool
import org.apache.http.impl.client.HttpClientBuilder; //导入方法依赖的package包/类
public HttpClient getPool() {
PoolingHttpClientConnectionManager connectionManager = new PoolingHttpClientConnectionManager();
HttpClientBuilder builder = HttpClientBuilder.create();
connectionManager.setMaxTotal(maxConnections);
connectionManager.setDefaultMaxPerRoute(maxConnections);
RequestConfig config = RequestConfig.custom()
.setConnectTimeout(timeOut)
.setConnectionRequestTimeout(timeOut).setSocketTimeout(timeOut)
.build();
connectionMonitor = new IdleConnectionMonitorThread(connectionManager);
connectionMonitor.start();
builder.setConnectionManager(connectionManager);
builder.setKeepAliveStrategy(myStrategy);
CloseableHttpClient defaultHttpClient = builder
.setDefaultRequestConfig(config).build();
logger.debug("prepared client");
return defaultHttpClient;
}
示例3: HttpClientTemplate
import org.apache.http.impl.client.HttpClientBuilder; //导入方法依赖的package包/类
private HttpClientTemplate() {
// 长连接保持30秒
PoolingHttpClientConnectionManager pollingConnectionManager = new PoolingHttpClientConnectionManager(timeToLive, TimeUnit.SECONDS);
// 总连接数
pollingConnectionManager.setMaxTotal(maxTotal);
// 同路由的并发数
pollingConnectionManager.setDefaultMaxPerRoute(defaultMaxPerRoute);
HttpClientBuilder httpClientBuilder = HttpClientBuilder.create();
httpClientBuilder.setConnectionManager(pollingConnectionManager);
// 重试次数，默认是3次，没有开启
httpClientBuilder.setRetryHandler(new DefaultHttpRequestRetryHandler(retryCount, requestSentRetryEnabled));
// 保持长连接配置，需要在头添加Keep-Alive
httpClientBuilder.setKeepAliveStrategy(new DefaultConnectionKeepAliveStrategy());
List<Header> headers = new ArrayList<>();
// 参考：http://www.cnblogs.com/sink_cup/archive/2011/03/15/http_user_agent.html
// headers.add(new BasicHeader("User-Agent", "Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/31.0.1650.16 Safari/537.36"));
// 不需要设置，可能会乱码，请参考：http://www.crifan.com/set_accept_encoding_header_to_gzip_deflate_return_messy_code/
// headers.add(new BasicHeader("Accept-Encoding", "gzip,deflate"));
// headers.add(new BasicHeader("Accept-Language", "zh-CN"));
headers.add(new BasicHeader("Connection", "Keep-Alive"));
httpClientBuilder.setDefaultHeaders(headers);
HttpClient httpClient = httpClientBuilder.build();
// httpClient连接配置，底层是配置RequestConfig
HttpComponentsClientHttpRequestFactory clientHttpRequestFactory = new HttpComponentsClientHttpRequestFactory(httpClient);
// 连接超时
clientHttpRequestFactory.setConnectTimeout(connectTimeout);
// 数据读取超时时间，即SocketTimeout
clientHttpRequestFactory.setReadTimeout(readTimeout);
// 连接不够用的等待时间，不宜过长，必须设置，比如连接不够用时，时间过长将是灾难性的
clientHttpRequestFactory.setConnectionRequestTimeout(connectionRequestTimeout);
// 缓冲请求数据，默认值是true。通过POST或者PUT大量发送数据时，建议将此属性更改为false，以免耗尽内存。
if (!bufferRequestBody) {
clientHttpRequestFactory.setBufferRequestBody(false);
}
// 添加内容转换器
// List<HttpMessageConverter<?>> messageConverters = new ArrayList<>();
messageConverters.add(new FastJsonHttpMessageConverter());
messageConverters.add(new StringHttpMessageConverter(Charset.forName(charset)));
messageConverters.add(new ByteArrayHttpMessageConverter());
super.setMessageConverters(messageConverters);
super.setRequestFactory(clientHttpRequestFactory);
super.setErrorHandler(new DefaultResponseErrorHandler());
}
示例4: getHttpClient
import org.apache.http.impl.client.HttpClientBuilder; //导入方法依赖的package包/类
public HttpClient getHttpClient() {
if (httpClient == null) {
synchronized (this) {
if (httpClient == null) {
if (pool == null) { //初始化pool
try {
afterPropertiesSet();
} catch (Exception e) {
logger.error(e.getMessage(), e);
}
}
HttpClientBuilder httpClientBuilder = HttpClients.custom();
httpClientBuilder.setConnectionManager(pool);
httpClientBuilder.setDefaultRequestConfig(RequestConfig.custom().setConnectTimeout(conntimeout).setSocketTimeout(sotimeout).build());
httpClientBuilder.setKeepAliveStrategy(new ConnectionKeepAliveStrategy() {
public long getKeepAliveDuration(HttpResponse response, HttpContext context) {
HeaderElementIterator it = new BasicHeaderElementIterator(response.headerIterator(HTTP.CONN_KEEP_ALIVE));
while (it.hasNext()) {
HeaderElement he = it.nextElement();
String param = he.getName();
String value = he.getValue();
if (value != null && param.equalsIgnoreCase("timeout")) {
try {
return Long.parseLong(value) * 1000;
} catch (NumberFormatException ignore) {
}
}
}
// 否则保持活动5秒
return 5 * 1000;
}
});
httpClient = httpClientBuilder.build();
}
}
}
return httpClient;
}
示例5: initRestTemplate
import org.apache.http.impl.client.HttpClientBuilder; //导入方法依赖的package包/类
/**
* springboot初始化restTemplate
*/
@Bean
public RestTemplate initRestTemplate() {
// 长连接保持30秒
PoolingHttpClientConnectionManager pollingConnectionManager = new PoolingHttpClientConnectionManager(30, TimeUnit.SECONDS);
// 总连接数
pollingConnectionManager.setMaxTotal(1000);
// 同路由的并发数
pollingConnectionManager.setDefaultMaxPerRoute(1000);
HttpClientBuilder httpClientBuilder = HttpClientBuilder.create();
httpClientBuilder.setConnectionManager(pollingConnectionManager);
// 重试次数，默认是3次，没有开启
httpClientBuilder.setRetryHandler(new DefaultHttpRequestRetryHandler(2, true));
// 保持长连接配置，需要在头添加Keep-Alive
httpClientBuilder.setKeepAliveStrategy(new DefaultConnectionKeepAliveStrategy());
RequestConfig.Builder builder = RequestConfig.custom();
builder.setConnectionRequestTimeout(200);
builder.setConnectTimeout(5000);
builder.setSocketTimeout(5000);
RequestConfig requestConfig = builder.build();
httpClientBuilder.setDefaultRequestConfig(requestConfig);
List<Header> headers = new ArrayList<>();
headers.add(new BasicHeader("User-Agent", "Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/31.0.1650.16 Safari/537.36"));
headers.add(new BasicHeader("Accept-Encoding", "gzip,deflate"));
headers.add(new BasicHeader("Accept-Language", "zh-CN"));
headers.add(new BasicHeader("Connection", "Keep-Alive"));
httpClientBuilder.setDefaultHeaders(headers);
HttpClient httpClient = httpClientBuilder.build();
// httpClient连接配置，底层是配置RequestConfig
HttpComponentsClientHttpRequestFactory clientHttpRequestFactory = new HttpComponentsClientHttpRequestFactory(httpClient);
// 连接超时
clientHttpRequestFactory.setConnectTimeout(5000);
// 数据读取超时时间，即SocketTimeout
clientHttpRequestFactory.setReadTimeout(5000);
// 连接不够用的等待时间，不宜过长，必须设置，比如连接不够用时，时间过长将是灾难性的
clientHttpRequestFactory.setConnectionRequestTimeout(200);
// 缓冲请求数据，默认值是true。通过POST或者PUT大量发送数据时，建议将此属性更改为false，以免耗尽内存。
clientHttpRequestFactory.setBufferRequestBody(false);
// 添加内容转换器
List<HttpMessageConverter<?>> messageConverters = new ArrayList<>();
messageConverters.add(initStringHttpMessageConverter());
messageConverters.add(new FormHttpMessageConverter());
messageConverters.add(new MappingJackson2XmlHttpMessageConverter());
messageConverters.add(new MappingJackson2HttpMessageConverter());
RestTemplate restTemplate = new RestTemplate(messageConverters);
restTemplate.setRequestFactory(clientHttpRequestFactory);
restTemplate.setErrorHandler(new DefaultResponseErrorHandler());
return restTemplate;
}