将json数组对象作为参数从android发送到php服务 我有一个带有许多字符串数据和jsonarray数据的json对象
**ArrayList<NameValuePair> nameValuePair = new ArrayList<NameValuePair>();
HttpResponse httpResponse = null;
// Making HTTP request
try {
// defaultHttpClient
DefaultHttpClient httpClient = new DefaultHttpClient();
JSONArray product_array = null;
/*
* namevaluepair.add(new BasicNameValuePair("val1",val1));
* namevaluepair.add(new BasicNameValuePair("val2",val2));
*/
try {
nameValuePair = new ArrayList<NameValuePair>();
nameValuePair.add(new BasicNameValuePair("n", jsonParams
.getString("n")));
nameValuePair.add(new BasicNameValuePair("e", jsonParams
.getString("e")));
nameValuePair.add(new BasicNameValuePair("p", jsonParams
.getString("p")));
nameValuePair.add(new BasicNameValuePair("a", jsonParams
.getString("a")));
nameValuePair.add(new BasicNameValuePair("t", jsonParams
.getString("t")));
nameValuePair.add(new BasicNameValuePair("m", jsonParams
.getString("m")));
product_array = jsonParams.getJSONArray("pj");
Log.i(TAG + "PPPPJJJ", product_array.toString());
// nameValuePair.add(new BasicNameValuePair("pj", product_array
// .toString()));
} catch (Exception e) {
Log.e(TAG, "2:" + e.getMessage());
}
String enc_url = URLEncoder.encode(url);
HttpPost httpPost = new HttpPost(enc_url);
httpPost.addHeader("accept", "application/json");
httpPost.setEntity(new UrlEncodedFormEntity(nameValuePair));
httpResponse = httpClient.execute(httpPost);
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}**
但它不是将json数组转发到服务器，服务器php文件是 不接收该数组数据，但与浏览器一起正常工作 所以我认为问题出现在我的代码中。
执行代码时遇到的错误如下所示。
07-08 23:37:56.504: W/System.err(3219): java.lang.IllegalStateException: Target host must not be null, or set in parameters.
07-08 23:37:56.514: W/System.err(3219): at org.apache.http.impl.client.DefaultRequestDirector.determineRoute(DefaultRequestDirector.java:572)
07-08 23:37:56.514: W/System.err(3219): at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:292)
07-08 23:37:56.514: W/System.err(3219): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:555)
07-08 23:37:56.525: W/System.err(3219): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:487)
07-08 23:37:56.525: W/System.err(3219): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:465)
07-08 23:37:56.525: W/System.err(3219): at com.nufame.nufamemotel.utils.ConnectToNetwork.posthttp(ConnectToNetwork.java:200)
07-08 23:37:56.525: W/System.err(3219): at com.nufame.nufamemotel.utils.ConnectToNetwork.getData(ConnectToNetwork.java:67)
07-08 23:37:56.534: W/System.err(3219): at com.nufame.nufamemotel.utils.QueryServer.doInBackground(QueryServer.java:20)
07-08 23:37:56.534: W/System.err(3219): at com.nufame.nufamemotel.utils.QueryServer.doInBackground(QueryServer.java:1)
07-08 23:37:56.534: W/System.err(3219): at android.os.AsyncTask$2.call(AsyncTask.java:185)
07-08 23:37:56.534: W/System.err(3219): at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:306)
07-08 23:37:56.544: W/System.err(3219): at java.util.concurrent.FutureTask.run(FutureTask.java:138)
07-08 23:37:56.544: W/System.err(3219): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1088)
07-08 23:37:56.544: W/System.err(3219): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:581)
07-08 23:37:56.544: W/System.err(3219): at java.lang.Thread.run(Thread.java:1019)
07-08 23:37:56.544: E/...Error occured ....response(3219): java.lang.IllegalStateException: Target host must not be null, or set in parameters.
07-08 23:37:56.544: I/OrderHandler(3219): exception
07-08 23:37:56.544: W/System.err(3219): org.json.JSONException: Value exception of type java.lang.String cannot be converted to JSONObject
07-08 23:37:56.564: W/System.err(3219): at org.json.JSON.typeMismatch(JSON.java:107)
07-08 23:37:56.564: W/System.err(3219): at org.json.JSONObject.<init>(JSONObject.java:158)
07-08 23:37:56.564: W/System.err(3219): at org.json.JSONObject.<init>(JSONObject.java:171)
07-08 23:37:56.564: W/System.err(3219): at com.nufame.nufamemotel.handler.OrderHandler$1.onPostExecute(OrderHandler.java:108)
07-08 23:37:56.564: W/System.err(3219): at com.nufame.nufamemotel.handler.OrderHandler$1.onPostExecute(OrderHandler.java:1)
07-08 23:37:56.564: W/System.err(3219): at android.os.AsyncTask.finish(AsyncTask.java:417)
07-08 23:37:56.564: W/System.err(3219): at android.os.AsyncTask.access$300(AsyncTask.java:127)
07-08 23:37:56.564: W/System.err(3219): at android.os.AsyncTask$InternalHandler.handleMessage(AsyncTask.java:429)
07-08 23:37:56.574: W/System.err(3219): at android.os.Handler.dispatchMessage(Handler.java:99)
07-08 23:37:56.574: W/System.err(3219): at android.os.Looper.loop(Looper.java:123)
07-08 23:37:56.574: W/System.err(3219): at android.app.ActivityThread.main(ActivityThread.java:3683)
07-08 23:37:56.574: W/System.err(3219): at java.lang.reflect.Method.invokeNative(Native Method)
07-08 23:37:56.574: W/System.err(3219): at java.lang.reflect.Method.invoke(Method.java:507)
07-08 23:37:56.574: W/System.err(3219): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
07-08 23:37:56.584: W/System.err(3219): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
07-08 23:37:56.584: W/System.err(3219): at dalvik.system.NativeStart.main(Native Method)
答案 0 :(得分：3)
您可以使用droidQuery轻松发送此内容：
$.ajax(new AjaxOptions().url("http://www.example.com")//switch with real URL
.type("POST")
.dataType("json")
.data(jsonParams)//your JSON Object
.context(this)
.success(new Function() {
@Override
public void invoke($ droidQuery, Object... params) {
//if you are expecting a JSONObject:
JSONObject response = (JSONObject) params[0];
//TODO: handle response
}
})
.error(new Function() {
@Override
public void invoke($ droidQuery, Object... params) {
AjaxError error = (AjaxError) params[0];
$.toast(error.status + ": " + error.reason, Toast.LENGTH_LONG);
//retry once
$.ajax(error.request, error.options.error($.noop()));
}
}));
答案 1 :(得分：1)
我认为应该这样做：
URL url = new URL("//ip of your PHP function on your web server");
HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection();
StringBuilder postDataBuilder = new StringBuilder();
postDataBuilder.append(URLEncoder.encode("005", "UTF-8"));
urlConnection.setDoOutput(true);
urlConnection.setRequestMethod("POST");
urlConnection.setUseCaches(false);
urlConnection.setConnectTimeout(10000);
urlConnection.setReadTimeout(10000);
urlConnection.setRequestProperty("Content-Type","application/json");
urlConnection.connect();
JSONObject jsonParam = new JSONObject();
jsonParam.put("item 1", "value 1");
//Add other pairs here, as you are doing
OutputStreamWriter out = new OutputStreamWriter(urlConnection.getOutputStream());
out.write(jsonParam.toString());
out.close();
InputStream is = urlConnection.getInputStream();
BufferedReader br = new BufferedReader(new InputStreamReader(is));
String line;
StringBuffer response = new StringBuffer();
while((line = br.readLine()) != null){
response.append(line);
response.append('\n');
}
if (urlConnection.getResponseCode() == HttpURLConnection.HTTP_OK) {
System.out.println(response.toString());
}
else {
System.out.println("Incorrect response code");
}
br.close();
urlConnection.disconnect();
此代码允许您发送JSON对象，然后使用InputStream和BufferedReader获取响应。希望这有用！
答案 2 :(得分：1)
JSONObject j = new JSONObject(); try {
j.put("n", jsonParams
.getString("n"));
j.put("e", jsonParams
.getString("e"));
j.put("p", jsonParams
.getString("p"));
j.put("e", jsonParams
.getString("p"));
j.put("a", jsonParams
.getString("a"));
j.put("t", jsonParams
.getString("t"));
j.put("m", jsonParams
.getString("m"));
product_array = jsonParams.getJSONArray("pj");
Log.i(TAG + "PPPPJJJ", product_array.toString());
j.put("array", product_array);
} catch (Exception e) {
Log.e(TAG, "2:" + e.getMessage());
}
String enc_url = URLEncoder.encode(url);
HttpPost httpPost = new HttpPost(enc_url);
httpPost.addHeader("accept", "application/json");
httpPost.setEntity(new UrlEncodedFormEntity(j));
httpResponse = httpClient.execute(httpPost);
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}**
另请参阅此处Android JSON HttpClient to send data to PHP server with HttpResponse