public static HttpResponse execute(HttpRequest httpRequest) throws IOException {
HttpConfig httpConfig =
httpRequest.getHttpConfig() == null ? HttpConfig.DEFAULT : httpRequest.getHttpConfig();
HttpURLConnection connection = null;
try {
connection = getHttpURLConnection(httpRequest.getUrl(), httpConfig); // 获取连接
setTimeOut(httpConfig, connection); // 设置超时
connection.setInstanceFollowRedirects(httpConfig.isRedirectEnable()); // 设置重定向
connection.setUseCaches(false); // 不使用缓存
connection.setDoInput(true); // 可输入输出
if (httpRequest instanceof HttpRequest) { // 设置METHOD
connection.setRequestMethod(httpRequest.getMethodName());
connection.setDoOutput(true);
}
if (null != httpRequest.getHeaders()) { // 设置headers
for (Map.Entry<String, String> entryTmp : httpRequest.getHeaders().entrySet()) {
connection.setRequestProperty(entryTmp.getKey(), entryTmp.getValue());
}
}
return getHttpResponse(connection, httpRequest);
} finally {
if (connection != null) {
connection.disconnect();
}
}
}
private static void setTimeOut(HttpConfig httpConfig, HttpURLConnection conn) {
if (httpConfig.getConnectTimeout() > 0) {
conn.setConnectTimeout(httpConfig.getConnectTimeout());
}
if (httpConfig.getRequestTimeout() > 0) {
conn.setReadTimeout(httpConfig.getRequestTimeout());
}
}
private static HttpURLConnection getHttpURLConnection(URL url, HttpConfig httpConfig)
throws IOException {
if (httpConfig.getHttpProxy() == null) {
return (HttpURLConnection) (url).openConnection();
} else {
Proxy proxy =
new Proxy(
Proxy.Type.HTTP,
new InetSocketAddress(
httpConfig.getHttpProxy().getHost(), httpConfig.getHttpProxy().getPort()));
return (HttpURLConnection) (url).openConnection(proxy);
}
}