阿里云短信服务代理的坑

在使用阿里云短信服务的时候，由于要将服务设置在内网供其他服务调用，这就需要用代理去处理短信接口请求，但是阿里官方提供的API就两个jar包，将http请求的具体细节封装起来了，楼主为此很是无奈，然后想到有个可以设置全局代理System.setPropert的方式，这种方式固然可以，但是整合springcloud的eureka之后,发生了非常奇怪的事情，使用代理的时候直接把eureka的心跳给弄死了，疯狂的报错。然后无奈之下，去官网找客服，打电话咨询后竟然说没有这个东西，然后又到官网问答那儿，有位大神告诉我说可以用弹性网卡，但是考虑到具体业务场景，最终没考虑没用它。然后又想到一个比较笨的点子，之前看它封装的Jar里使用也是HttpURLConnection就想如果直接继承它里面的类，在此基础上修改就好了，可是那里面很多受保护的类，并不能直接继承，这时候就想到用最简单粗暴的方法，将用到的类把源码全部拷出来直接修改，大概也就7,8类的样子，加上代理，然后调用的时候就用自己修改的类美滋滋，搞定了，虽然这个方法比较笨，但是最终解决的了问题，也不知道和我遇到同样问题的大侠是怎么处理的。。。

这个是直接把源码拷贝出来的类

就是下面这个方法。。

private HttpURLConnection buildHttpConnection(HttpRequest request) throws IOException {
        Map<String, String> mappedHeaders = request.getHeaders();
        String strUrl = request.getUrl();

        if (null == strUrl) {
            throw new IllegalArgumentException("URL is null for HttpRequest.");
        }
        if (null == request.getMethod()) {
            throw new IllegalArgumentException("Method is not set for HttpRequest.");
        }
        URL url = null;
        String[] urlArray = null;
        if (MethodType.POST.equals(request.getMethod()) && null == request.getHttpContent()) {
            urlArray = strUrl.split("\\?");
            url = new URL(urlArray[0]);
        } else {
            url = new URL(strUrl);
        }
        System.setProperty("sun.net.http.allowRestrictedHeaders", "true");
        HttpURLConnection httpConn = null;
        //加载通用属性配置
        BasicProperties basic = ApplicationContextUtil.getBean(BasicProperties.class);
        if (url.getProtocol().equalsIgnoreCase("https")) {
            if (sslSocketFactory != null) {
            	
            	HttpsURLConnection httpsConn = null;
            	if(basic.isEnable()) {
            		logger.info("==============Https Proxy Mode!");
                    Proxy proxy = new Proxy(Proxy.Type.HTTP, new InetSocketAddress(basic.getProxyHost(), Integer.parseInt(basic.getProxyPort())));
                    httpsConn = (HttpsURLConnection)url.openConnection(proxy);
                }else {
                	logger.info("==============Https Direct Mode!");
                	httpsConn = (HttpsURLConnection)url.openConnection();
                }          	
                httpsConn.setSSLSocketFactory(sslSocketFactory);
                httpConn = httpsConn;
                
            }
        }

        if (httpConn == null) {
        	if(basic.isEnable()) {
        		logger.info("==============HTTP Proxy Mode!");
                Proxy proxy = new Proxy(Proxy.Type.HTTP, new InetSocketAddress(basic.getProxyHost(), Integer.parseInt(basic.getProxyPort())));
                httpConn = (HttpURLConnection)url.openConnection(proxy);
        	}else{
        		logger.info("==============HTTP Direct Mode!");
        		httpConn = (HttpURLConnection)url.openConnection();
        	}
        }

        httpConn.setRequestMethod(request.getMethod().toString());
        httpConn.setDoOutput(true);
        httpConn.setDoInput(true);
        httpConn.setUseCaches(false);
        //自定义超时设置
        httpConn.setConnectTimeout(new Integer(basic.getConnectTimeOut()));
        httpConn.setReadTimeout(new Integer(basic.getReadTimeOut()));
        if (request.getConnectTimeout() != null) {
            httpConn.setConnectTimeout(request.getConnectTimeout());
        }

        if (request.getReadTimeout() != null) {
            httpConn.setReadTimeout(request.getReadTimeout());
        }

        httpConn.setRequestProperty(ACCEPT_ENCODING, "identity");
        for (Entry<String, String> entry : mappedHeaders.entrySet()) {
            httpConn.setRequestProperty(entry.getKey(), entry.getValue());
        }

        if (null != request.getHeaderValue(CONTENT_TYPE)) {
            httpConn.setRequestProperty(CONTENT_TYPE, request.getHeaderValue(CONTENT_TYPE));
        } else {
            String contentTypeValue = request.getContentTypeValue(request.getHttpContentType(), request.getEncoding());
            if (null != contentTypeValue) {
                httpConn.setRequestProperty(CONTENT_TYPE, contentTypeValue);
            }
        }

        if (MethodType.POST.equals(request.getMethod()) && null != urlArray && urlArray.length == 2) {
            httpConn.getOutputStream().write(urlArray[1].getBytes());
        }

        return httpConn;
    }

阿里云短信服务代理的坑

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