https 协议下服务器根据网络地址下载上传文件问题

https 协议下服务器根据网络地址下载上传文件遇到（PKIX：unable to find valid certification path to requested target 的问题）

使用httpclient  所有站点全部信任 不做身份鉴定：

 public static CloseableHttpClient getHttpClient() throws Exception {
         SSLConnectionSocketFactory sslsf = null;
         PoolingHttpClientConnectionManager cm = null;
         SSLContextBuilder builder = null;
         builder = new SSLContextBuilder();
         // 全部信任 不做身份鉴定
         builder.loadTrustMaterial(null, new TrustStrategy() {
             @Override
             public boolean isTrusted(X509Certificate[] x509Certificates, String s) throws CertificateException {
                 return true;
             }
         });
         sslsf = new SSLConnectionSocketFactory(builder.build(), new String[]{"SSLv2Hello", "SSLv3", "TLSv1", "TLSv1.2"}, null, NoopHostnameVerifier.INSTANCE);
         CloseableHttpClient httpClient = HttpClients.custom()
                 .setSSLSocketFactory(sslsf)
                 .setConnectionManager(cm)
                 .setConnectionManagerShared(true)
                 .build();
         return httpClient;
     }

上传文件：

 public static void postParams(String filepath) {
         String url = "http://192.188.188.190:8080/dcs.web/upload";//
         CloseableHttpClient  httpclient = null;
         try {
             httpclient = getHttpClient();
         }catch (Exception e){
             e.printStackTrace();
         }
         CloseableHttpResponse response = null;
         String result = null;
         try {
             HttpPost httpPost = new HttpPost(url+"upload");
             MultipartEntityBuilder mEntityBuilder = MultipartEntityBuilder.create().setMode(HttpMultipartMode.BROWSER_COMPATIBLE);
             mEntityBuilder.setCharset(Charset.forName(HttpUtil.ENC_UTF_8));
             FileBody file = new FileBody(new File(filepath));
             mEntityBuilder.addPart("file", file);
             StringBody comment = new StringBody(type, ContentType.APPLICATION_JSON);
             mEntityBuilder.addPart("convertType", comment);
             HttpEntity reqEntity = mEntityBuilder.build();
             httpPost.setEntity(reqEntity);
             response = httpclient.execute(httpPost);
             int statusCode = response.getStatusLine().getStatusCode();
             if (statusCode == HttpStatus.SC_OK) {
                 HttpEntity resEntity = response.getEntity();
                 result = EntityUtils.toString(resEntity);
                 EntityUtils.consume(resEntity);
                 JSONObject resultJson = JSONObject.fromObject(result);
                //返回是否成功等信息
             } else {
                 exeResultEntity.message = "转换pdf服务无响应！";
             }
         } catch (Exception e) {
             exeResultEntity.message = "pdf转换异常，错误信息：" + e.getMessage();
             logger.error("请求DCS转化pdf服务错误！", e);
         } finally {
             HttpClientUtils.closeQuietly(httpclient);
             HttpClientUtils.closeQuietly(response);
         }
         return exeResultEntity;
     }

下载文件：

 public static byte[] downloadFileFromNet(String url){
         try {
             HttpGet httpget = new HttpGet(url);
             HttpClient httpClient = getHttpClient();
             HttpResponse response = httpClient.execute(httpget);
             int statusCode = response.getStatusLine().getStatusCode();
             if (statusCode == HttpStatus.SC_OK) {
                 HttpEntity entity = response.getEntity();
                 InputStream is = entity.getContent();
                 byte[] fileByte = readInputStream(is);
                 is.close();
                 return  fileByte;
             }
         }catch (Exception e){
             e.printStackTrace();
         }
         return  null;
     }