异常解析字符串到JSONObject（在本地服务器上工作，但在在线服务器上不工作）android
守则：异常解析字符串到JSONObject（在本地服务器上工作，但在在线服务器上不工作）android,android,string,json,Android,String,Json,守则： public JSONArray getJSONFromUrl(String url, List<NameValuePair> params) { // Making HTTP request try { // defaultHttpClient HttpClient httpClient = new DefaultHttpClient(); HttpPost httpPost = new HttpPost(u
public JSONArray getJSONFromUrl(String url, List<NameValuePair> params) {
// Making HTTP request
try {
// defaultHttpClient
HttpClient httpClient = new DefaultHttpClient();
HttpPost httpPost = new HttpPost(url);
httpPost.setEntity(new UrlEncodedFormEntity(params));
HttpResponse httpResponse = httpClient.execute(httpPost);
HttpEntity httpEntity = httpResponse.getEntity();
is = httpEntity.getContent();
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
try {
BufferedReader reader = new BufferedReader(new InputStreamReader(
is, "UTF-8"), 8);
StringBuilder sb = new StringBuilder();
String line = null;
while ((line = reader.readLine()) != null) {
sb.append(line);
}
is.close();
json = sb.toString();
Log.e("JSON", json);
} catch (Exception e) {
Log.e("Buffer Error", "Error converting result " + e.toString());
}
// try parse the string to a JSON object
try {
JSONObject json_data = new JSONObject(json);
JSONArray hashMap_names = json_data.names();
JSONArray hashMap_names2 = new JSONArray();
Map hashMap = new HashMap(json_data.length());
for (int i=0; i!=hashMap_names.length(); i++){
//Object obj = chaves.next();
hashMap.put(String.valueOf(i),json_data.get(String.valueOf(i)));
hashMap_names2.put(String.valueOf(i));
}
JSONObject hashMap_obj = new JSONObject (hashMap);
jArr = hashMap_obj.toJSONArray(hashMap_names2);
Log.e("JSON Parser", "succesful parsing data " + jArr.toString());
} catch (Exception e) {
Log.e("JSON Parser", "Error parsing data " + e.toString());
jArr = null;
}
return jArr;
}
Error parsing data org.json.JSONException: Value of type java.lang.String cannot be converted to JSONArray
json=“{0'：'1212'，'1'：'username'，'2'：'email'，'3'：'pass'}”成功了！但是当使用json=“\”+json.replace（“\”，“\”）+“\”；
也得到了同样的异常
顺便说一句，我使用hashmap只是在解析后对dejsonObject进行排序
可能是因为我在本地使用的是PHP5.3，而在线服务器使用的是PHP5.2？这些版本的标题之间有什么区别？我如何验证这一点？我建议用json=EntityUtils.toString（httpEntity）替换所有疯狂的InputStream
-和-BufferedReader
内容
。这可能只是解决了您的编码问题（假设为UTF-8，忽略服务器所说的任何内容）首先，感谢您的帮助！我尝试了EntityUtils的东西，它在本地服务器上运行得很好，但是我在使用在线服务器时仍然遇到异常。但是logcat现在的消息是：错误解析数据org.json.JSONException:Valueï»类型java.lang.String不能转换为JSONObject。所以json之前有这样奇怪的问题re{“0”：“67987”，“1”：“ategdtg TADGTEG”，“2”：eytdgaetydg@yaeyedg.com“，…..}，这可能是什么？在使用entityutils之前回顾异常，似乎在json:look上面存在一个null，“JSONException:Value of type…”。。。" . 也许通过删除这个，我就能解决这个问题？你能用当前代码和错误消息更新你的问题吗？这会让你更容易理解：）我会的。顺便说一句，theï»是一个BOM：想知道我是否可以使用BOMInputStream跳过它。这对我来说很有用，它可以得到响应。解析那个json对象。
HttpURLConnection connection;
OutputStreamWriter request = null;
URL url = null;
String parameters = "parameter1="+parameter;
try {
url = new URL("http://myserver.com/samplejson.php");
connection = (HttpURLConnection) url.openConnection();
connection.setDoOutput(true);
connection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
connection.setRequestMethod("POST");
request = new OutputStreamWriter(connection.getOutputStream());
request.write(parameters);
request.flush();
request.close();
String line = "";
InputStreamReader isr = new InputStreamReader(
connection.getInputStream());
BufferedReader reader = new BufferedReader(isr);
StringBuilder sb = new StringBuilder();
while ((line = reader.readLine()) != null) {
sb.append(line + "\n");
}
response = sb.toString();
///you will get response here..
isr.close();
reader.close();
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
HttpURLConnection connection;
OutputStreamWriter request = null;
URL url = null;
String parameters = "parameter1="+parameter;
try {
url = new URL("http://myserver.com/samplejson.php");
connection = (HttpURLConnection) url.openConnection();
connection.setDoOutput(true);
connection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
connection.setRequestMethod("POST");
request = new OutputStreamWriter(connection.getOutputStream());
request.write(parameters);
request.flush();
request.close();
String line = "";
InputStreamReader isr = new InputStreamReader(
connection.getInputStream());
BufferedReader reader = new BufferedReader(isr);
StringBuilder sb = new StringBuilder();
while ((line = reader.readLine()) != null) {
sb.append(line + "\n");
}
response = sb.toString();
///you will get response here..
isr.close();
reader.close();
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}