我想向需要身份验证的服务器生成POST请求。我尝试使用以下方法:
private synchronized String CreateNewProductPOST (String urlString, String encodedString, String title, String content, Double price, String tags) { String data = "product[title]=" + URLEncoder.encode(title) + "&product[content]=" + URLEncoder.encode(content) + "&product[price]=" + URLEncoder.encode(price.toString()) + "&tags=" + tags; try { URL url = new URL(urlString); URLConnection conn; conn = url.openConnection(); conn.setRequestProperty ("Authorization", "Basic " + encodedString); conn.setDoOutput(true); conn.setDoInput(true); OutputStreamWriter wr = new OutputStreamWriter(conn.getOutputStream()); wr.write(data); wr.flush(); // Get the response BufferedReader rd = new BufferedReader(new InputStreamReader(conn.getInputStream())); String line; while ((line = rd.readLine()) != null) { // Process line... } wr.close(); rd.close(); return rd.toString(); } catch (MalformedURLException e) { e.printStackTrace(); return e.getMessage(); } catch (IOException e) { e.printStackTrace(); return e.getMessage(); } }
但服务器未收到授权数据。应该添加授权数据的行如下:
conn.setRequestProperty ("Authorization", "Basic " + encodedString);
和线
BufferedReader rd = new BufferedReader(new InputStreamReader(conn.getInputStream()));
还抛出IOException。
无论如何,如果有人可以建议对以上逻辑进行任何修复,以启用带有UrlConnection的POST授权,我将非常感激。
但是显然,它不能像预期的那样起作用,尽管如果将相同的逻辑用于GET请求,则一切正常。
这里有一个很好的例子。在下面的Powerlord正确的地方,您需要POST。HttpURLConnection
HttpURLConnection
下面是执行此操作的代码,
URL url = new URL(urlString); URLConnection conn = url.openConnection(); conn.setDoOutput(true); conn.setRequestProperty ("Authorization", encodedCredentials); OutputStreamWriter writer = new OutputStreamWriter(conn.getOutputStream()); writer.write(data); writer.flush(); String line; BufferedReader reader = new BufferedReader(new InputStreamReader(conn.getInputStream())); while ((line = reader.readLine()) != null) { System.out.println(line); } writer.close(); reader.close();
更改URLConnection为HttpURLConnection,使其成为POST请求。
URLConnection
HttpURLConnection conn = (HttpURLConnection) url.openConnection(); conn.setRequestMethod("POST");
建议(…中的评论):
您可能还需要设置这些属性,
conn.setRequestProperty( "Content-type", "application/x-www-form-urlencoded"); conn.setRequestProperty( "Accept", "*/*" );