android 登陆出现bug

[seiyalin]

android端的登陆界面，模拟器测试时，以下问题是什么原因？
采用的volley通信协议，wamp搭建本地服务器，url直接是本地IP地址么？还是10.0.2.2：80？

[seiyalin]

.err: org.json.JSONException: Value <br of type java.lang.String cannot be converted to JSONObject .err: at org.json.JSON.typeMismatch(JSON.java:111) .err: at org.json.JSONObject.<init>(JSONObject.java:160) .err: at org.json.JSONObject.<init>(JSONObject.java:173) .err: at com.example.misssea.new_health.login_activity$1.onResponse(login_activity.java:120) .err: at com.example.misssea.new_health.login_activity$1.onResponse(login_activity.java:112) .err: at com.android.volley.toolbox.StringRequest.deliverResponse(StringRequest.java:60) err: at com.android.volley.toolbox.StringRequest.deliverResponse(StringRequest.java:1) .err: at com.android.volley.ExecutorDelivery$ResponseDeliveryRunnable.run(ExecutorDelivery.java:99) .err: at android.os.Handler.handleCallback(Handler.java:739) .err: at android.os.Handler.dispatchMessage(Handler.java:95) .err: at android.os.Looper.loop(Looper.java:148) .err: at android.app.ActivityThread.main(ActivityThread.java:5417) .err: at java.lang.reflect.Method.invoke(Native Method) err: at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) err: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)

[qq_26763799]

你这是json解析出错啊...

[seiyalin]

附上登录代码

引用 3 楼 misssea0815 的回复:

private class btnin_Listener implements View.OnClickListener { @Override public void onClick(View v) { stringname= edt_name.getText().toString(); stringID=edt_id.getText().toString(); if (stringname.trim().length() > 0 && stringID.trim().length() > 0) { // login user checkLogin(stringname, stringID); } else { // Prompt user to enter credentials Toast.makeText(getApplicationContext(), "Please enter the credentials!", Toast.LENGTH_LONG) .show(); } } } private void checkLogin(final String stringname, final String stringID) { // Tag used to cancel the request String tag_string_req = "req_login"; pDialog.setMessage("Logging in ..."); showDialog(); StringRequest strReq = new StringRequest(Request.Method.POST, URL, new Response.Listener<String>() { @Override public void onResponse(String response) { Log.d(TAG, "Login Response: " + response.toString()); hideDialog(); try { JSONObject jObj = new JSONObject(response); boolean error = jObj.getBoolean("error"); // Check for error node in json if (!error) { // user successfully logged in // Launch main activity Intent intent = new Intent(login_activity.this, user_activity.class); startActivity(intent); finish(); } else { // Error in login. Get the error message String errorMsg = jObj.getString("error_msg"); Toast.makeText(getApplicationContext(), errorMsg, Toast.LENGTH_LONG).show(); } } catch (JSONException e) { // JSON error e.printStackTrace(); } } }, new Response.ErrorListener() { @Override public void onErrorResponse(VolleyError error) { Log.e(TAG, "Login Error: " + error.getMessage()); Toast.makeText(getApplicationContext(), error.getMessage(), Toast.LENGTH_LONG).show(); hideDialog(); } }) { @Override protected Map<String, String> getParams() { // Posting parameters to login url Map<String, String> params = new HashMap<String, String>(); params.put("tag", "login"); params.put("name", stringname); params.put("userID", stringID); return params; } }; requestQueue.add(strReq); } private void showDialog() { if (!pDialog.isShowing()) pDialog.show(); } private void hideDialog() { if (pDialog.isShowing()) pDialog.dismiss(); }

[seiyalin]

private class btnin_Listener implements View.OnClickListener { @Override public void onClick(View v) { stringname= edt_name.getText().toString(); stringID=edt_id.getText().toString(); if (stringname.trim().length() > 0 && stringID.trim().length() > 0) { // login user checkLogin(stringname, stringID); } else { // Prompt user to enter credentials Toast.makeText(getApplicationContext(), "Please enter the credentials!", Toast.LENGTH_LONG) .show(); } } } private void checkLogin(final String stringname, final String stringID) { // Tag used to cancel the request String tag_string_req = "req_login"; pDialog.setMessage("Logging in ..."); showDialog(); StringRequest strReq = new StringRequest(Request.Method.POST, URL, new Response.Listener<String>() { @Override public void onResponse(String response) { Log.d(TAG, "Login Response: " + response.toString()); hideDialog(); try { JSONObject jObj = new JSONObject(response); boolean error = jObj.getBoolean("error"); // Check for error node in json if (!error) { // user successfully logged in // Launch main activity Intent intent = new Intent(login_activity.this, user_activity.class); startActivity(intent); finish(); } else { // Error in login. Get the error message String errorMsg = jObj.getString("error_msg"); Toast.makeText(getApplicationContext(), errorMsg, Toast.LENGTH_LONG).show(); } } catch (JSONException e) { // JSON error e.printStackTrace(); } } }, new Response.ErrorListener() { @Override public void onErrorResponse(VolleyError error) { Log.e(TAG, "Login Error: " + error.getMessage()); Toast.makeText(getApplicationContext(), error.getMessage(), Toast.LENGTH_LONG).show(); hideDialog(); } }) { @Override protected Map<String, String> getParams() { // Posting parameters to login url Map<String, String> params = new HashMap<String, String>(); params.put("tag", "login"); params.put("name", stringname); params.put("userID", stringID); return params; } }; requestQueue.add(strReq); } private void showDialog() { if (!pDialog.isShowing()) pDialog.show(); } private void hideDialog() { if (pDialog.isShowing()) pDialog.dismiss(); }

[chengnan35]

json 解析异常 查看服务器返回的是否为json格式