android httpurlconenction 请求方法 405 不允许

Question

Responsecode 向我返回 405，我不明白我应用的代码中的错误在哪里？我正在使用 httpurlconnection 连接到互联网。

        HttpURLConnection conn = (HttpURLConnection) url2.openConnection();
                conn.setReadTimeout(60000);
                conn.setConnectTimeout(60000);
                conn.setRequestMethod("GET");
                conn.setDoInput(true);
                conn.setDoOutput(true);
                conn.setRequestProperty("Cache-Control", "no-cache");
                String sessionId = "JSESSIONID=" + Common.getAuthCode();
                conn.setRequestProperty("Cookie", sessionId);
                conn.setRequestProperty("User-Agent",System.getProperty("http.agent"));
                OutputStream os = conn.getOutputStream();
                BufferedWriter writer = new BufferedWriter(
                        new OutputStreamWriter(os, "UTF-8"));                   
                writer.write(getQuery(params));
                writer.flush();
                writer.close();
                os.close();
                conn.connect();
                int status = conn.getResponseCode();
                System.out.println("statue "+status);
                switch (status) {
                    case 200:
                    case 201:
                        BufferedReader br = new BufferedReader(new InputStreamReader(conn.getInputStream()));
                        StringBuilder sb = new StringBuilder();
                        String line;
                        while ((line = br.readLine()) != null) {
                            sb.append(line+"\n");
                        }
                        br.close();
                        System.out.println("here");
                        return sb.toString();
                }

Answer 1

对于 GET 请求，删除 conn.setDoOutput(true); 行。但是，我认为这应该是 POST 请求。替换 conn.setRequestMethod("GET"); 通过 conn.setRequestMethod("POST"); 然后再次运行您的应用。