如何设置内容长度 REST 请求 - 适用于 Android
我正在尝试使用 Java 和 REST 连接到 Web 服务。这是我尝试过的方法，但出现 411 错误。
public static String getSiteToken(String host,String token) throws IOException, JSONException
{
host = host.replace("https://", "http://");
URL url = new URL(host + "/tokens");
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setUseCaches(false);
conn.setDoOutput(true);
conn.setRequestMethod("POST");
conn.setRequestProperty("Content-Type", "application/json");
conn.setRequestProperty("Authorization", token);
conn.setRequestProperty("Content-Length", "57");
//conn.setFixedLengthStreamingMode(57);
conn.setRequestProperty("Connection","keep-alive");
InputStream is = conn.getInputStream();
InputStreamReader isr = new InputStreamReader(is);
BufferedReader rd = new BufferedReader(isr);
JSONObject json = new JSONObject(rd.readLine());
rd.close();
conn.disconnect();
return json.getString("token");
}
我还尝试了“ setFixedLengthStreamingMode ”方法，但应用程序在该行代码之后没有响应。与 Firefox 的 REST 客户端连接时一切正常。我想不通。谢谢！
I'm trying to connect to a webservice using Java and REST. This is what I've tried, and I get a 411 error.
public static String getSiteToken(String host,String token) throws IOException, JSONException
{
host = host.replace("https://", "http://");
URL url = new URL(host + "/tokens");
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setUseCaches(false);
conn.setDoOutput(true);
conn.setRequestMethod("POST");
conn.setRequestProperty("Content-Type", "application/json");
conn.setRequestProperty("Authorization", token);
conn.setRequestProperty("Content-Length", "57");
//conn.setFixedLengthStreamingMode(57);
conn.setRequestProperty("Connection","keep-alive");
InputStream is = conn.getInputStream();
InputStreamReader isr = new InputStreamReader(is);
BufferedReader rd = new BufferedReader(isr);
JSONObject json = new JSONObject(rd.readLine());
rd.close();
conn.disconnect();
return json.getString("token");
}
I also tried " setFixedLengthStreamingMode " method, but the application wasn't responding after that line of code. Everything works fine when connecting with REST Client for firefox. I can't figure it out. Thanks!
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您没有向请求正文写入任何内容。在这种情况下，内容长度应该是 0 而不是 57
You aren't writing anything to the body of the request. In that case the content length should be 0 and not 57