发送http的post请求并通过request接收post请求体

1、http发送post请求：

/**     * 发送post请求     * @param url 请求url     * @param content 请求参数     * @return 请求结果。异常或者没拿到返回结果的情况下,请求结果为""     */public static String doPostQuery(String url, String content, int time) throws IOException {if("yes".equals(flag)) {        SSLContext sc = null;    try {    sc = SSLContext.getInstance("SSL");                sc.init(null, new TrustManager[] { new TrustAnyTrustManager() },                        new java.security.SecureRandom());    } catch (Exception e) {    e.printStackTrace();    }URL console = new URL(null,url,new sun.net.www.protocol.https.Handler());            HttpsURLConnection conn = (HttpsURLConnection) console.openConnection();            conn.setSSLSocketFactory(sc.getSocketFactory());            conn.setHostnameVerifier(new TrustAnyHostnameVerifier());            conn.setDoOutput(true);            conn.setConnectTimeout(time);            conn.setReadTimeout(time);            conn.setRequestProperty("Content-Type", "application/json;charset=UTF-8");            conn.connect();            DataOutputStream out = new DataOutputStream(conn.getOutputStream());            out.write(content.getBytes("UTF-8"));            // 刷新、关闭            out.flush();            out.close();            InputStream is = null;            ByteArrayOutputStream outStream = null;try {             is = conn.getInputStream();                 if (is != null) {                     outStream = new ByteArrayOutputStream();                     byte[] buffer = new byte[1024];                     int len = 0;                     while ((len = is.read(buffer)) != -1) {                         outStream.write(buffer, 0, len);                     }                     return new String(outStream.toByteArray());                 }    } catch (Exception e) {    e.printStackTrace();    }finally{    if(outStream!=null)    outStream.close();    if(is!=null)                is.close();    }} else {        // 创建post请求            PostMethod method = new PostMethod(url);            setMethodHeader(method);            try {                RequestEntity requestEntity = new ByteArrayRequestEntity(content.getBytes("UTF-8"), "UTF-8");                method.setRequestEntity(requestEntity);            } catch (UnsupportedEncodingException e) {                e.printStackTrace();            }// 发出请求            String result = "";            int stateCode = 0;            try {                stateCode = createHttpClient(time).executeMethod(method);            } catch (IOException e) {                log.error("Http post request failure, reason could be: {}", e.getMessage());                throw e;            }            log.info("Http post method, stateCode: {}, url: {}, body: {}", stateCode, url, content);            // 请求成功            if (stateCode == HttpStatus.SC_OK) {                try {                    result = method.getResponseBodyAsString();                } catch (IOException e) {                    e.printStackTrace();                }            }// 释放资源            releaseHttpConnection(method);            return result;        }return null;}

2、request接收post体：

public static final byte[] readBytes(InputStream is, int contentLen) {        if (contentLen > 0) {            int readLen = 0;            int readLengthThisTime = 0;            byte[] message = new byte[contentLen];            try {                while (readLen != contentLen) {                    readLengthThisTime = is.read(message, readLen, contentLen                            - readLen);                    if (readLengthThisTime == -1) {// Should not happen.                        break;                    }                    readLen += readLengthThisTime;                }                return message;            } catch (Exception e) {                e.printStackTrace();            }        }        return new byte[] {};    } @RequestMapping(value = "/test")    public void testHttp(HttpServletRequest request) {        try{            request.setCharacterEncoding("UTF-8");            int size = request.getContentLength();            System.out.println(size);            InputStream is = request.getInputStream();            byte[] reqBodyBytes = readBytes(is, size);            String res = new String(reqBodyBytes);            //获取了post请求中请求体的内容            System.out.println("请求体："+res);        } catch (Exception e) {        }        System.out.println("获取了结果");    }