request获取请求参数_request.getquerystring()

I achieve the POST request in Android and upload a picture to service successful.

I did not use the setRequestProperty function; But I want to know what the effect about this function is.

This is the code:

URL url = new URL(“http://192.168.191.104:8080/myapp/servlet/MyServlet”);

HttpURLConnection connection = ((HttpURLConnection) url

.openConnection());

connection.setDoInput(true);

connection.setDoOutput(true);

connection.setUseCaches(false);

connection.setRequestMethod(“POST”);

connection.connect();

OutputStream out = connection.getOutputStream();

int len;

byte[] buffer = new byte[1024];

// 读取文件

FileInputStream fileInputStream = new FileInputStream(Environment

.getExternalStorageDirectory().getAbsolutePath() + “/123.jpg”);

while ((len = fileInputStream.read(buffer, 0, 1024)) != -1) {

out.write(buffer);

}

out.flush();

out.close();

fileInputStream.close();

InputStream input = connection.getInputStream();

while ((len = input.read(buffer)) != -1) {

Log.i(“tag”, “data:” + new String(buffer, 0, len));

}

input.close();

connection.disconnect();

Could anyone explain the effect of setRequestProperty function in HttpURLConnection?

解决方案

Mainly setRequestProperty is used to set below things as per the requirement

connection.setRequestProperty(“Connection”, “Keep-Alive”);

connection.setRequestProperty(“Content-Type”, “multipart/form-data;boundary=”+boundary);

or

Connection.setRequestProperty(“Content-Type”, “text/plain; charset=utf-8”);

Sometimes it become necessary that you have to specify Content-type for the connection.