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《HttpClient官方文檔》2.8 HttpClient代理配置
2.8. HttpClient代理配置
即使HttpClient意識到路由方案和代理連接的複雜性，它也隻支持簡單直連或單跳代理連接的開箱即用。
通知HttpClient連接到目標主機，最簡單的方法是通過設置默認參數的代理:
HttpHost proxy = new HttpHost("someproxy", 8080);
DefaultProxyRoutePlanner routePlanner = new DefaultProxyRoutePlanner(proxy);
CloseableHttpClient httpclient = HttpClients.custom()
.setRoutePlanner(routePlanner)
.build();
還可以指示HttpClient使用標準的JRE代理選擇器來獲取代理信息:
SystemDefaultRoutePlanner routePlanner = new SystemDefaultRoutePlanner(
ProxySelector.getDefault());
CloseableHttpClient httpclient = HttpClients.custom()
.setRoutePlanner(routePlanner)
.build();
或者，可以利用customRoutePlanner接口的實現類來完全控製HTTP路由計算的過程：
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();
}
}
最後更新：2017-05-19 12:04:29