Http-Postリクエスト-Getリクエスト

リクエストを取得

    public static String getHttpJson(String urlStr) {
    
    
        try {
    
    
            URL url = new URL(urlStr);
            //通url打开连接通道  Http
            HttpURLConnection http = (HttpURLConnection) url.openConnection();
            // (Https)
            // HttpsURLConnection https = (HttpsURLConnection) url.openConnection();

            //设置请求方式
            http.setRequestMethod("GET");
            //设置请求超时时间   可有可无
            http.setConnectTimeout(3000);
            //设置数据读取超时时间  可有可无
            http.setReadTimeout(60 * 1000);
            //获取响应码
            int responseCode = http.getResponseCode();
            if (responseCode == 200) {
    
    
                //获取读数据的流
                InputStream is = http.getInputStream();
                byte[] bys = new byte[1024];
                int len = 0;
                //创建用来临时存储数据的内存流
                ByteArrayOutputStream baos = new ByteArrayOutputStream();

                while ((len = is.read(bys)) != -1) {
    
    
                    baos.write(bys, 0, len);
                }
                //将内存流中的数据转成字符串
                String json = baos.toString();
                return json;
            }
        } catch (MalformedURLException e) {
    
    
            e.printStackTrace();
        } catch (IOException e) {
    
    
            e.printStackTrace();
        } 
        return null;
    }

リクエストを投稿する

    public static String postJsonHttp(String urlString,String params){
    
    
        // urlString  链接   params  参数
        //封装URL对象
        try {
    
    
            URL url = new URL(urlString);
            //打开了连接   Http
            HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection();
            // (Https)
            // HttpsURLConnection https = (HttpsURLConnection) url.openConnection();

            //设置请求方式
            urlConnection.setRequestMethod("POST");
            //设置允许追加参数
            urlConnection.setDoOutput(true);
            //获取写数据的流
            OutputStream os = urlConnection.getOutputStream();
            //将数据写入
            os.write(params.getBytes());
            //强制将数据刷新到服务器
            os.flush();
            //设置连接时间  可有可无
            urlConnection.setConnectTimeout(5000);
            //设置读取超时时间   可有可无
            urlConnection.setReadTimeout(60*1000);
            //开始连接
            urlConnection.connect();

            //判断响应码
            if(urlConnection.getResponseCode() == 200){
    
    
                //获取读数据的流
                InputStream is = urlConnection.getInputStream();
                byte[] bys = new byte[1024];
                int len = 0;
                //创建用来临时存储数据的内存流
                ByteArrayOutputStream baos = new ByteArrayOutputStream();
                while((len = is.read(bys))!=-1){
    
    
                    baos.write(bys,0,len);
                }
                String json = baos.toString();
                return json;
            }
        } catch (MalformedURLException e) {
    
    
            e.printStackTrace();
        } catch (IOException e) {
    
    
            e.printStackTrace();
        }
        return null;
    }