《HttpClient官方文档》2.8 HttpClient代理配置

xiaoxiao2024-04-12 110

2.8. HttpClient代理配置

即使HttpClient意识到路由方案和代理连接的复杂性，它也只支持简单直连或单跳代理连接的开箱即用。

通知HttpClient连接到目标主机，最简单的方法是通过设置默认参数的代理:

HttpHost proxy = new HttpHost("someproxy", 8080); DefaultProxyRoutePlanner routePlanner = new DefaultProxyRoutePlanner(proxy); CloseableHttpClient httpclient = HttpClients.custom() .setRoutePlanner(routePlanner) .build();

还可以指示HttpClient使用标准的JRE代理选择器来获取代理信息:

SystemDefaultRoutePlanner routePlanner = new SystemDefaultRoutePlanner( ProxySelector.getDefault()); CloseableHttpClient httpclient = HttpClients.custom() .setRoutePlanner(routePlanner) .build();

或者，可以利用customRoutePlanner接口的实现类来完全控制HTTP路由计算的过程：

HttpRoutePlanner routePlanner = new HttpRoutePlanner() { public HttpRoute determineRoute( HttpHost target, HttpRequest request, HttpContext context) throws HttpException { return new HttpRoute(target, null, new HttpHost("someproxy", 8080), "https".equalsIgnoreCase(target.getSchemeName())); } }; CloseableHttpClient httpclient = HttpClients.custom() .setRoutePlanner(routePlanner) .build(); } }

转载自并发编程网 - ifeve.com