java - 使用java进行类似于ajax的调用

Question

我经历过这个Previous post关于如何在 java 中使用 ajax 进行等效调用。如果请求返回 json，如何检索响应。

final URL url = new URL("http://localhost:8080/SearchPerson.aspx/PersonSearch");
final URLConnection urlConnection = url.openConnection();
urlConnection.setDoOutput(true);
urlConnection.setRequestProperty("Content-Type", "application/json; charset=utf-8");
urlConnection.connect();
final OutputStream outputStream = urlConnection.getOutputStream();
outputStream.write(("{\"fNamn\": \"" + stringData + "\"}").getBytes("UTF-8"));
outputStream.flush();
final InputStream inputStream = urlConnection.getInputStream();`

Answer 1

试试这个:

StringBuffer jsonBuffer = new StringBuffer();
BufferedReader reader = null;
String line = null;
try {
    reader =  new BufferedReader(new InputStreamReader(inputStream));
    while ((line = reader.readLine()) != null)
        jsonBuffer.append(line);
} catch (Exception e) {
    //Handle error
}
finally {
    reader.close();
}
String json = jsonBuffer.toString();