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httpPost对JSON发送和接收

栏目:php教程时间:2016-11-22 08:36:22

public static String postURL(String commString, String address, String encode) { String rec_string = ""; URL url = null; HttpURLConnection urlConn = null; try { /*得到url地址的URL类*/ url = new URL(address); /*取得打开需要发送的url连接*/ urlConn = (HttpURLConnection) url.openConnection(); /*设置连接超时时间*/ urlConn.setConnectTimeout(30000); /*设置读取响应超时时间*/ urlConn.setReadTimeout(30000); /*设置post发送方式*/ urlConn.setRequestMethod("POST"); /*发送commString*/ urlConn.setDoOutput(true); urlConn.setDoInput(true); OutputStreamWriter out; out = new OutputStreamWriter(urlConn.getOutputStream(), encode); out.write(commString); out.flush(); out.close(); /*发送终了 获得返回流,解析流数据*/ BufferedReader rd = new BufferedReader(new InputStreamReader(urlConn.getInputStream(), encode)); StringBuffer sb = new StringBuffer(); int ch; while ((ch = rd.read()) > ⑴) { sb.append((char) ch); } rec_string = sb.toString().trim(); /*解析终了关闭输入流*/ rd.close(); } catch (Exception e) { /*异常处理*/ rec_string = "⑴07"; System.out.println(e); } finally { if (urlConn != null) { /*关闭URL连接*/ urlConn.disconnect(); } } /*返回响应内容*/ return rec_string; }
上面是另外一种方式的要求

下面是httpost:

HTTPPost发送JSON:

private static final String APPLICATION_JSON = "application/json";
    
    private static final String CONTENT_TYPE_TEXT_JSON = "text/json";

public static void httpPostWithJSON(String url, String json) throws Exception {
        // 将JSON进行UTF⑻编码,以便传输中文
        String encoderJson = URLEncoder.encode(json, HTTP.UTF_8);
        
        DefaultHttpClient httpClient = new DefaultHttpClient();
        HttpPost httpPost = new HttpPost(url);
        httpPost.addHeader(HTTP.CONTENT_TYPE, APPLICATION_JSON);
        
        StringEntity se = new StringEntity(encoderJson);
        se.setContentType(CONTENT_TYPE_TEXT_JSON);
        se.setContentEncoding(new BasicHeader(HTTP.CONTENT_TYPE, APPLICATION_JSON));
        httpPost.setEntity(se);
        httpClient.execute(httpPost);
    }


接收HTTPPost中的JSON:

public static String receivePost(HttpServletRequest request) throws IOException, UnsupportedEncodingException {
        
        // 读取要求内容
        BufferedReader br = new BufferedReader(new InputStreamReader(request.getInputStream()));
        String line = null;
        StringBuilder sb = new StringBuilder();
        while((line = br.readLine())!=null){
            sb.append(line);
        }

        // 将资料解码
        String reqBody = sb.toString();
        return URLDecoder.decode(reqBody, HTTP.UTF_8);
    }
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