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我一直在從url中提取數據。根據第一個url，第二個將工作，並依賴於第三個工作。我已經將所有數據設置爲微調，當我修改第一個微調另外兩個微調器修改並顯示一個錯誤。Json解析：服務處理Android中的異常
03-28 11:17:38.958: D/dalvikvm(659): GC_FOR_MALLOC freed 8320 objects/625048 bytes in 63ms
03-28 11:17:38.958: E/AndroidRuntime(659): FATAL EXCEPTION: AsyncTask #2
03-28 11:17:38.958: E/AndroidRuntime(659): java.lang.RuntimeException: An error occured while executing doInBackground()
03-28 11:17:38.958: E/AndroidRuntime(659): at android.os.AsyncTask$3.done(AsyncTask.java:200)
03-28 11:17:38.958: E/AndroidRuntime(659): at java.util.concurrent.FutureTask$Sync.innerSetException(FutureTask.java:273)
03-28 11:17:38.958: E/AndroidRuntime(659): at java.util.concurrent.FutureTask.setException(FutureTask.java:124)
03-28 11:17:38.958: E/AndroidRuntime(659): at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:307)
03-28 11:17:38.958: E/AndroidRuntime(659): at java.util.concurrent.FutureTask.run(FutureTask.java:137)
03-28 11:17:38.958: E/AndroidRuntime(659): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1068)
03-28 11:17:38.958: E/AndroidRuntime(659): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:561)
03-28 11:17:38.958: E/AndroidRuntime(659): at java.lang.Thread.run(Thread.java:1096)
03-28 11:17:38.958: E/AndroidRuntime(659): Caused by: java.lang.IllegalArgumentException: Illegal character in path at index 59: http://192.169.11.175/AndroidService/Restful.svc/getarea/80 Feet Road
03-28 11:17:38.958: E/AndroidRuntime(659): at java.net.URI.create(URI.java:970)
03-28 11:17:38.958: E/AndroidRuntime(659): at org.apache.http.client.methods.HttpGet.<init>(HttpGet.java:75)
03-28 11:17:38.958: E/AndroidRuntime(659): at com.example.testspinner.ServiceHandler.makeServiceCall(ServiceHandler.java:67)
03-28 11:17:38.958: E/AndroidRuntime(659): at com.example.testspinner.ServiceHandler.makeServiceCall(ServiceHandler.java:33)
03-28 11:17:38.958: E/AndroidRuntime(659): at com.example.testspinner.HomeActivity$GetArea.doInBackground(HomeActivity.java:192)
03-28 11:17:38.958: E/AndroidRuntime(659): at com.example.testspinner.HomeActivity$GetArea.doInBackground(HomeActivity.java:1)
03-28 11:17:38.958: E/AndroidRuntime(659): at android.os.AsyncTask$2.call(AsyncTask.java:185)
03-28 11:17:38.958: E/AndroidRuntime(659): at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:305)
03-28 11:17:38.958: E/AndroidRuntime(659): ... 4 more
HomeActivity.class
public class HomeActivity extends Activity {
private static String state_url = "/AndroidService/restful.svc/GetState/";
private static String city_url = "/AndroidService/restful.svc/Getcity/";
private static String city_area = "/AndroidService/Restful.svc/getarea/";
Spinner sp_state,sp_city,sp_area,sp_pin;
ArrayList<String> state_name,state_id;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_home);
sp_state = (Spinner)findViewById(R.id.spinner_state);
sp_area = (Spinner)findViewById(R.id.spinner_area);
sp_city = (Spinner)findViewById(R.id.spinner_city);
sp_pin = (Spinner)findViewById(R.id.spinner_pin);
new GetState(HomeActivity.this).execute();
sp_state.setOnItemSelectedListener(new OnItemSelectedListener()
{
@Override
public void onItemSelected(AdapterView<?> arg0, View arg1,int pos, long arg3)
{
String item = sp_state.getSelectedItem().toString();
if(!item.equals("select"))
{
new GetCity(HomeActivity.this, state_id.get(pos)).execute();
}
}
@Override
public void onNothingSelected(AdapterView<?> arg0) {
// TODO Auto-generated method stub
}
});
sp_city.setOnItemSelectedListener(new OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> arg0, View arg1,int pos, long arg3) {
// TODO Auto-generated method stub
String name = sp_city.getItemAtPosition(pos).toString();
if(!name.equals("select"))
{
new GetArea(HomeActivity.this, name).execute();
}
}
@Override
public void onNothingSelected(AdapterView<?> arg0) {
// TODO Auto-generated method stub
}
});
}
class GetState extends AsyncTask<Void, Void, Void>
{
Context con;
public GetState(Context c)
{
this.con = c;
}
@Override
protected Void doInBackground(Void... params)
{
ServiceHandler sh = new ServiceHandler();
String jsonStr = sh.makeServiceCall(state_url, ServiceHandler.GET);
if(jsonStr!=null)
{
try
{
state_name = new ArrayList<String>();
state_id = new ArrayList<String>();
state_name.add("select");
state_id.add("select");
JSONArray ary = new JSONArray(jsonStr);
for(int i=0;i<ary.length();i++)
{
String name = ary.getJSONObject(i).getString("StateName");
int city_id = ary.getJSONObject(i).getInt("PkId");
state_name.add(name);
state_id.add(""+city_id);
}
}
catch(Exception e)
{
e.printStackTrace();
}
}
else
{
Log.e("ServiceHandler", "Couldn't get any data from the url");
}
return null;
}
@Override
protected void onPostExecute(Void result) {
// TODO Auto-generated method stub
super.onPostExecute(result);
ArrayAdapter<String> state_Adapter = new ArrayAdapter<String>(con, R.layout.custom_layout, R.id.textView_custom, state_name);
sp_state.setAdapter(state_Adapter);
}
}
class GetCity extends AsyncTask<Void, Void, Void>
{
Context con;
String state_id;
ArrayList<String> mycity;
public GetCity(Context c,String id) {
this.con = c;
this.state_id = id;
}
@Override
protected Void doInBackground(Void... params) {
ServiceHandler sh = new ServiceHandler();
String jsonStr = sh.makeServiceCall(city_url+""+state_id, ServiceHandler.GET);
if(jsonStr!=null)
{
try
{
JSONArray myary = new JSONArray(jsonStr);
mycity = new ArrayList<String>();
mycity.add("select");
for(int i=0;i<myary.length();i++)
{
String city = myary.getJSONObject(i).getString("City");
mycity.add(city);
}
}
catch(Exception e)
{
e.printStackTrace();
}
}
else
{
Log.e("ServiceHandler", "Couldn't get any data from the url");
}
return null;
}
@Override
protected void onPostExecute(Void result) {
// TODO Auto-generated method stub
super.onPostExecute(result);
ArrayAdapter<String> state_Adapter = new ArrayAdapter<String>(con, R.layout.custom_layout, R.id.textView_custom, mycity);
sp_city.setAdapter(state_Adapter);
}
}
class GetArea extends AsyncTask<Void, Void, Void>
{
Context con;
String name;
ArrayList<String> myarea;
public GetArea(Context c,String name) {
this.con = c;
this.name = name;
}
@Override
protected Void doInBackground(Void... params) {
ServiceHandler sh = new ServiceHandler();
String jsonStr = sh.makeServiceCall(city_area+""+name, ServiceHandler.GET);
Log.d("CityResponse: ", "> " + jsonStr);
if(jsonStr!=null)
{
try
{
JSONArray myary = new JSONArray(jsonStr);
myarea = new ArrayList<String>();
myarea.add("select");
for(int i=0;i<myary.length();i++)
{
String city = myary.getJSONObject(i).getString("Area");
Log.d("city", city);
myarea.add(city);
}
}
catch(Exception e)
{
e.printStackTrace();
}
}
else
{
Log.e("ServiceHandler", "Couldn't get any data from the url");
}
return null;
}
@Override
protected void onPostExecute(Void result) {
// TODO Auto-generated method stub
super.onPostExecute(result);
ArrayAdapter<String> state_Adapter = new ArrayAdapter<String>(con, R.layout.custom_layout, R.id.textView_custom, myarea);
sp_area.setAdapter(state_Adapter);
}
}
}
ServiceHandler.class
public class ServiceHandler {
static String response = null;
public final static int GET = 1;
public final static int POST = 2;
public ServiceHandler() {
}
/*
* Making service call
* @url - url to make request
* @method - http request method
* */
public String makeServiceCall(String url, int method) {
return this.makeServiceCall(url, method, null);
}
/*
* Making service call
* @url - url to make request
* @method - http request method
* @params - http request params
* */
public String makeServiceCall(String url, int method,
List<NameValuePair> params) {
try {
// http client
DefaultHttpClient httpClient = new DefaultHttpClient();
HttpEntity httpEntity = null;
HttpResponse httpResponse = null;
// Checking http request method type
if (method == POST) {
HttpPost httpPost = new HttpPost(url);
// adding post params
if (params != null) {
httpPost.setEntity(new UrlEncodedFormEntity(params));
}
httpResponse = httpClient.execute(httpPost);
} else if (method == GET) {
// appending params to url
if (params != null) {
String paramString = URLEncodedUtils
.format(params, "utf-8");
url += "?" + paramString;
}
HttpGet httpGet = new HttpGet(url);
httpResponse = httpClient.execute(httpGet);
}
httpEntity = httpResponse.getEntity();
response = EntityUtils.toString(httpEntity);
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return response;
}
}
它顯示在您的link.i一些非法字符認爲其由於** **空間在您的鏈接。 – Yugesh
@Yugesh：哪個鏈接 – Giridharan
哪個鏈接不適合你？ –