Java 不推荐使用 httpClient.getConnectionManager() - 应该使用什么代替？
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httpClient.getConnectionManager() is deprecated - what should be used instead?
提问by peter.murray.rust
I have inherited the code
我继承了代码
import org.apache.http.client.HttpClient;
...
HttpClient httpclient = createHttpClientOrProxy();
try {
HttpPost postRequest = postRequest(data, url);
body = readResponseIntoBody(body, httpclient, postRequest);
} catch( IOException ioe ) {
throw new RuntimeException("Cannot post/read", ioe);
} finally {
httpclient.getConnectionManager().shutdown(); // ** Deprecated
}
private HttpClient createHttpClientOrProxy() {
HttpClient httpclient = new DefaultHttpClient();
/*
* Set an HTTP proxy if it is specified in system properties.
*
* http://docs.oracle.com/javase/6/docs/technotes/guides/net/proxies.html
* http://hc.apache.org/httpcomponents-client-ga/httpclient/examples/org/apache/http/examples/client/ClientExecuteProxy.java
*/
if( isSet(System.getProperty("http.proxyHost")) ) {
log.warn("http.proxyHost = " + System.getProperty("http.proxyHost") );
log.warn("http.proxyPort = " + System.getProperty("http.proxyPort"));
int port = 80;
if( isSet(System.getProperty("http.proxyPort")) ) {
port = Integer.parseInt(System.getProperty("http.proxyPort"));
}
HttpHost proxy = new HttpHost(System.getProperty("http.proxyHost"), port, "http");
// @Deprecated methods here... getParams() and ConnRoutePNames
httpclient.getParams().setParameter(ConnRoutePNames.DEFAULT_PROXY, proxy);
}
return httpclient;
}
getConnectionManager()reads "
getConnectionManager()读“
@Deprecated
ClientConnectionManager getConnectionManager()
Deprecated. (4.3) use HttpClientBuilder.
Obtains the connection manager used by this client.
The docs for HttpClientBuilder seem sparse and simply say:
HttpClientBuilder 的文档似乎很少，只是说：
Builder for CloseableHttpClient instances.
However if I replace HttpClientwith CloseableHttpClientthe method still seems @Deprecated.
但是，如果我HttpClient用CloseableHttpClient该方法替换似乎仍然存在@Deprecated。
How can I use a non-Deprecated method?
如何使用未弃用的方法？
采纳答案by SiN
Instead of creating a new instance of HttpClient, use the Builder. You would get a CloseableHttpClient.
不要创建 的新实例，而是HttpClient使用 Builder。你会得到一个CloseableHttpClient.
e.g usage:
例如用法：
CloseableHttpClient httpClient = HttpClientBuilder.create().setProxy(proxy).build()
Instead of using getConnectionManager().shutdown(), use the close()method instead on CloseableHttpClient.
不要使用getConnectionManager().shutdown()，而是使用close()方法 on CloseableHttpClient。
