common-httpclient

Post请求：

import org.apache.commons.httpclient.HttpClient;import org.apache.commons.httpclient.NameValuePair;import org.apache.commons.httpclient.methods.PostMethod; // http请求    public static Result Post(String path, Map<String, String> param){        String url = "http://127.0.0.1:9191" + path;        HttpClient httpClient = new HttpClient();        httpClient.getParams().setContentCharset("UTF-8");        PostMethod postMethod = new PostMethod(url);        Map<String, String> headerMap = new HashMap<>();        headerMap.put("Host", "****");        headerMap.put("Accept-Encoding", "gzip");        headerMap.put("charset", "utf-8");        for (Map.Entry<String, String> entry : headerMap.entrySet()) {            postMethod.addRequestHeader(entry.getKey(), entry.getValue());        }        List<NameValuePair> pList =  new ArrayList<>();        for(Map.Entry<String, String> entry: param.entrySet()){            pList.add(new NameValuePair(entry.getKey(), entry.getValue()));        }        NameValuePair[] parts = new NameValuePair[pList.size()];        for(int i = 0; i < pList.size(); i++){            parts[i] = pList.get(i);        }//        MultipartRequestEntity entity = new MultipartRequestEntity(parts, postMethod.getParams());        postMethod.setRequestBody(parts);        try{            int result = httpClient.executeMethod(postMethod);            if (result == 200) {                /** 发送成功，并获取返回字符串 */                ByteArrayOutputStream out = new ByteArrayOutputStream();                InputStream in = postMethod.getResponseBodyAsStream();                InputStreamReader isr = new InputStreamReader(in);                BufferedReader br = new BufferedReader(isr);//为输入流添加缓冲                String content = "";                String info = "";                while ((info = br.readLine()) != null) {                    content = content + info;                }                postMethod.releaseConnection();                Result res =  new Gson().fromJson(content, Result.class);                return res;            } else {                String msg = "请求数说读者的GO服务失败, url: " + url + ",resCode: " +result;                LogDefine.LOG.error(msg);                return new Result<String>(null, false, msg, null);            }        }catch (Exception e){            String msg = "请求数说读者的GO服务失败, url: " + url;            LogDefine.LOG.error(msg, e);            return new Result<String>(null, false, msg, null);        }    }