android的GET请求失败，一直无法发送

来源：互联网发布：国泰安金融数据库编辑：程序博客网时间：2024/05/21 06:20

今天做安卓的时候，需要连接服务器，因为数据传的比较少，所以不想用post请求，用的get请求，但是一直无法成功，不得其原因，后来才知道get请求的URL中不能包含空格，

下面是post请求的代码，无注解，要详细看的，请看我以前的文章，网络请求必须开辟新的线程

private void sendRequest(final String sign){    new Thread(new Runnable() {        @Override        public void run() {            String url="http://"+ MyIp.ip+":8080/CarSafe/InsertBlogServlet";            HttpURLConnection connection=null;            try{                URL posturl=new URL(url);                connection=(HttpURLConnection)posturl.openConnection();                connection.setDoOutput(true);                connection.setDoInput(true);                connection.setRequestMethod("POST");                connection.setUseCaches(false);                connection.setInstanceFollowRedirects(true);                connection.connect();                DataOutputStream out=new DataOutputStream(connection.getOutputStream());                String content="car_id="+ URLEncoder.encode(String.format("%d",Person.car_id),"utf-8")+                        "&username="+URLEncoder.encode(Person.usename,"utf-8")+"&mysign="+URLEncoder.encode(sign,"utf-8");                out.writeBytes(content);                out.flush();                out.close();                BufferedReader reader=new BufferedReader(new InputStreamReader(connection.getInputStream()));                String line;                StringBuffer response=new StringBuffer();                while((line=reader.readLine())!=null){                    response.append(line);                }                reader.close();                Message message=new Message();                message.what=SEND_SIGN;                message.obj=response.toString();                handler.sendMessage(message);            }catch (Exception e){                e.printStackTrace();            }finally {                if(connection!=null){                    connection.disconnect();                }            }        }    }).start();}

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