httpclient调用接口

有时候会将参数(返回结果)压缩(解压)，加密(解密)

将json参数通过GZip压缩　　Base64加密

 1 public static String gzipAndEncryption(String data){
 2         String result = "";
 3
 4         try {
 5             //请求参数的数据压缩
 6             ByteArrayOutputStream out = new ByteArrayOutputStream();
 7             GZIPOutputStream gzip = new GZIPOutputStream(out);
 8             if (StrUtil.isEmpty(data)) {
 9                 log.warn("传递请求参数为空");
10                return result;
11             }
12             gzip.write(data.getBytes());
13
14             out.close();
15             gzip.close();
16
17             //加密
18             result = new BASE64Encoder().encodeBuffer(out.toByteArray());
19
20         } catch (Exception e) {
21             log.error("请求参数压缩加密失败，失败原因：{}",e);
22         }
23         log.info("请求参数压缩加密结果：" + result);
24         return result;
25     }

将返回结果Base64解密　　GZip解压

 1  public static String decryptionAndUnzip(String data){
 2         String result = "";
 3
 4         try {
 5             //解密
 6             ByteArrayOutputStream out = new ByteArrayOutputStream();
 7             byte[] c = new Base64().decode(data);
 8             //解压
 9             ByteArrayInputStream in = new ByteArrayInputStream(c);
10             GZIPInputStream gunzip = new GZIPInputStream(in);
11             byte[] buffer = new byte[1024];
12             int offset = -1;
13             while ((offset = gunzip.read(buffer)) >= 0) {
14                 String s = new String(buffer, StandardCharsets.UTF_8);
15                 buffer = s.getBytes();
16                 out.write(buffer, 0, offset);
17             }
18             result = out.toString();
19             log.info("响应参数解密解压结果：" + result);
20             out.close();
21             in.close();
22             gunzip.close();
23
24         } catch (IOException e) {
25             log.warn("响应参数解密解压失败，失败原因：{}",e);
26         }
27
28         return result;
29     }

发送post请求

 1 public static String sendHttpPost(String url,String param){
 2         String result = null;
 3
 4         try {
 5             HttpClient httpClient = new HttpClient();
 6             PostMethod postMethod = new PostMethod(url);
 7
 8             //压缩加密参数
 9             String paramStrPwd = gzipAndEncryption(param);
10
11             RequestEntity se = new StringRequestEntity(paramStrPwd,"application/json" ,"UTF-8");
12
13             postMethod.setRequestEntity(se);
14             postMethod.setRequestHeader("Content-Type","application/json");
15             postMethod.addRequestHeader("accept-encoding", "gzip");
16             postMethod.addRequestHeader("content-encoding", "gzip");
17
18             httpClient.executeMethod(postMethod);
19             String response = postMethod.getResponseBodyAsString();
20
21             //响应结果解密解压缩
22             result = decryptionAndUnzip(response);
23         } catch (Exception e) {
24             log.info("请求调用失败，请求路径：{}，请求参数：{}，失败原因：{}",url,param,e);
25         }
26
27         return result;
28     }