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《HttpClient官方文档》2.8 HttpClient代理配置
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();
}
}
最后更新：2017-05-19 12:04:29