java - Json 遇到意外字符 'q'

Question

我正在尝试向 Https 网站发送 HTTPost 请求以获取 json 格式的响应。

问题是这一行:

Log.e("Result", "RESPONSE:aa "+ result);

错误是:

RESPONSE:aa“遇到意外字符‘q’。”

关于请求的详细信息:

REQUEST
POST https://localhost:17778/SolarWinds/InformationService/v3/Json/Query HTTP/1.1
Authorization: Basic YWRtaW46
User-Agent: curl/7.20.0 (i386-pc-win32) libcurl/7.20.0 OpenSSL/0.9.8l zlib/1.2.3
Host: localhost:17778
Accept: */*
Content-Type: application/json
Content-Length: 130
{"query":"SELECT PollerID FROM Orion.Pollers"}

有关响应的详细信息:

RESPONSE
HTTP/1.1 200 OK
Content-Length: 99
Content-Type: application/json
Server: Microsoft-HTTPAPI/2.0
Date: Tue, 07 Aug 2012 17:36:27 GMT
{"results":[{"PollerID":1},{"PollerID":2},{"PollerID":3},{"PollerID":4},{"PollerID":5},{"PollerID":6},{"PollerID":7},{"PollerID":8}]}

这是我的代码:

JsonReaderPost(JSON 解析器函数):

public class JsonReaderPost {

    public JsonReaderPost() {

        }

    public void Reader() throws IOException, JSONException, KeyStoreException, NoSuchAlgorithmException, CertificateException, KeyManagementException, UnrecoverableKeyException, URISyntaxException {



        String result = null;
        String ints = "";
        List<NameValuePair> params = new ArrayList<NameValuePair>();
        params.add(new BasicNameValuePair("query","SELECT PollerID FROM Orion.Pollers")); 
        //HttpClient client =new MyHttpClient(mContext);

        HttpPost httpPost = new HttpPost("https://192.168.56.101:17778/SolarWinds/InformationService/v3/Json/Query");
        httpPost.addHeader("content-type", "application/json");
        httpPost.addHeader("Authorization", "Basic YWRtaW46");
        httpPost.setEntity(new UrlEncodedFormEntity(params));


        HttpClient client = new DefaultHttpClient(); 
        client=MyHttpClient.sslClient(client);
        HttpResponse response =client.execute(httpPost);

        HttpEntity entity = response.getEntity();

        if (entity != null) {

            // A Simple JSON Response Read
            InputStream instream = entity.getContent();
            result = convertStreamToString(instream);
            // now you have the string representation of the HTML request
            // System.out.println("RESPONSE: " + result);

                    //Here i Get THe error in this line :
            Log.e("Result", "RESPONSE:aa " + result);
            instream.close();
        }

        // Converting the String result into JSONObject jsonObj and then into
        // JSONArray to get data
        JSONObject jsonObj = new JSONObject(result);
        JSONArray results = jsonObj.getJSONArray("results");
        for (int i = 0; i < results.length(); i++) {
            JSONObject r = results.getJSONObject(i);
            ints = r.getString("PollerID");
            Log.e("Final Result", "RESPONSE: zz" + ints);
        }

    }


    public static String convertStreamToString(InputStream is) {

        BufferedReader reader = new BufferedReader(new InputStreamReader(is));
        StringBuilder sb = new StringBuilder();

        String line = null;
        try {
            while ((line = reader.readLine()) != null) {
                sb.append(line + "\n");
            }
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            try {
                is.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        return sb.toString();
    }

}

我很困惑，找不到任何解决方案。

如果您需要其余功能，请告诉我。

Answer 1

经过一些帮助，我找到了解决方案:

问题是这一行:

httpPost.setEntity(new UrlEncodedFormEntity(params));

而不是将参数创建为 List<NameValuePair>并将其传递给 setEntity作为UrlEncodedFormEntity ，您应该将参数创建为 JSONObject并将其传递给 setEntity作为StringEntity .有关示例，请参阅此 Stack Overflow 答案: Json not working with HttpPost probably around setEntity