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Nginx请求直接代理与间接代理配置

需求

应用服务器不能直接通外网,需配置代理服务器。

直接代理在发起端就不需要额外操作,直接就是往代理服务器指定端口发送请求即可, 直接转发到被代理地址。

直接代理nginx配置:

 server {
                        resolver 119.6.6.6;
                        listen   8080;
                        location / {
                        #       proxy_pass https://此处为被代理地址$request_uri;
                                proxy_pass https://xxxx.xxxx.xxxx$request_uri;
                                proxy_buffer_size 64k;
                                proxy_buffers 32 32k;
                                proxy_busy_buffers_size 128k;
                        }
                }

间接代理需要在请求发起的地方指定通过代理方式访问,这里举CloseableHttpClient的发起请求的例子。

间接代理JAVA代码:

private String doPost(String token, Map<String, String> postParams) {
		CloseableHttpClient httpclient = null;
		HttpPost post = null;
		CloseableHttpResponse response1 = null;
		Gson gson = new Gson();
		int statusCode = 0;// 返回的结果
		String result = "";
		try {
			if (isproxy) {
				Trace.log(Trace.COMPONENT_ACTION, "通过代理方式访问" + proxyIP + ":" + proxyport);
				// 把代理设置到请求配置 代理IP 端口
				HttpHost proxy = new HttpHost(proxyIP, Integer.parseInt(proxyport));
				// 超时时间单位为毫秒
				RequestConfig defaultRequestConfig = RequestConfig.custom().setConnectTimeout(30000).setSocketTimeout(30000).setProxy(proxy).build();
				httpclient = HttpClients.custom().setDefaultRequestConfig(defaultRequestConfig).build();
			} else {
				httpclient = HttpClients.custom().build();
			}

			post = new HttpPost(baseurl);
			post.setHeader("Content-Type", "application/json;charset=UTF-8");
			post.setHeader("Accept", "application/json");
			post.setHeader("token", token);
			post.setEntity(new StringEntity(gson.toJson(postParams), "UTF-8"));
			response1 = httpclient.execute(post);
			statusCode = response1.getStatusLine().getStatusCode();
			if (statusCode == HttpStatus.SC_OK) {
				result = EntityUtils.toString(response1.getEntity());// 返回json格式
			} else {
				throw new TranFailException("JD_0037", "服务器接口网络异常" + statusCode);
			}
			// 判断get请求响应结果
			response1.close();
			post.releaseConnection();
		} catch (Exception e) {
			e.getMessage();
		} finally {
			try {
				if (response1 != null) {
					response1.close();
				}
				if (post != null) {
					post.releaseConnection();
				}
			} catch (IOException e) {
			} finally {
				try {
					if (httpclient != null) {
						httpclient.close();
					}
				} catch (IOException e) {
				}
			}
		}
		return result;
	}

间接代理nginx配置:

 server {
        listen       8086;
        resolver 119.6.6.6;
        proxy_connect;
        #proxy_connect_allow            443 563;
                        location / {

                                access_log logs/ngxin_8086.log main;
                                proxy_pass https://$host$request_uri;
                                proxy_buffer_size 64k;
                                proxy_buffers 32 32k;
                                proxy_busy_buffers_size 128k;

                                proxy_set_header Content-Type $http_content_type;
                                proxy_set_header Host $http_host;
                                proxy_set_header Authorization $http_Authorization;
                                proxy_set_header X-TC-Action $http_x_tc_action;
                                proxy_set_header X-TC-Timestamp $http_x_tc_timestamp;
                                proxy_set_header X-TC-Version $http_x_tc_version;
                                proxy_set_header X-TC-RequestClient $http_x_tc_requestclient;
                                proxy_set_header X-TC-Region $http_x_tc_region;

                        }

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