private EditText name,email,password,phone;
private Button reg_btn;
private ProgressDialog pDialog;
JSONParser jsonParser = new JSONParser();
private static final String LOGIN_URL = "http://vichomes.softcorp.ca/android/register/";
private static final String TAG_SUCCESS = "success";
private static final String TAG_MESSAGE = "message";
我的signup.java课程。我向服务员发送用户证书
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.sign_up);
name=(EditText)findViewById(R.id.name);
email=(EditText)findViewById(R.id.email1);
password=(EditText)findViewById(R.id.password1);
phone=(EditText)findViewById(R.id.phone);
reg_btn=(Button)findViewById(R.id.button3);
reg_btn.setOnClickListener(this);
}
public void onClick(View v) {
// TODO Auto-generated method stub
new CreateUser().execute();
}
class CreateUser extends AsyncTask<String, String, String> {
boolean failure = false;
String namestr = name.getText().toString();
String emailstr = email.getText().toString();
String passwordstr = password.getText().toString();
String phonestr= phone.getText().toString();
@Override
protected void onPreExecute() {
super.onPreExecute();
pDialog = new ProgressDialog(sign_up.this);
pDialog.setMessage("Successfull");
pDialog.setIndeterminate(false);
pDialog.setCancelable(true);
pDialog.show();
}
此处转换为
JSON
@Override
protected String doInBackground(String... args){
// TODO Auto-generated method stub
// Check for success tag
int success;
try {
// Building Parameters
List<NameValuePair> params = new ArrayList<NameValuePair>();
params.add(new BasicNameValuePair("name", namestr));
params.add(new BasicNameValuePair("email", emailstr));
params.add(new BasicNameValuePair("password",passwordstr));
params.add(new BasicNameValuePair("phone", phonestr));
Log.d("request!", "starting");
//Posting user data to script
JSONObject json = jsonParser.makeHttpRequest(LOGIN_URL, "POST", params);
打印完整的json响应
Log.d("sign up attempt", json.toString()
json成功元素
success = json.getInt(TAG_SUCCESS);
if (success == 1) {
Log.d("User Created!", json.toString());
Intent i= new Intent(sign_up.this,donation.class);
startActivity(i);
return json.getString(TAG_MESSAGE);
}
else{
Log.d("Login Failure!", json.getString(TAG_MESSAGE));
return json.getString(TAG_MESSAGE);
}
} catch (JSONException e) {
e.printStackTrace();
}
return null;
}
protected void onPostExecute(String file_url) {
// dismiss the dialog once product deleted
pDialog.dismiss();
if (file_url != null){
Toast.makeText(sign_up.this, file_url, Toast.LENGTH_LONG).show();
}
}
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
if(id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}
XML CODE OF SIGN UP画面。
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#1F874E"
android:orientation="vertical">
<TextView
android:layout_width="221dp"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceLarge"
android:text="Sign Up"
android:id="@+id/textView2"
android:textColor="#FFFFFF"
android:textStyle="bold"
android:textSize="40px"
android:layout_marginLeft="20dp"
android:layout_marginTop="10dp"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Name"
android:id="@+id/textView3"
android:layout_marginTop="20dp"
android:layout_marginLeft="20dp"
android:textSize="20dp"
android:textStyle="bold"/>
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/name"
android:layout_gravity="center_horizontal" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Email"
android:id="@+id/textView4"
android:layout_marginTop="20dp"
android:layout_marginLeft="20dp"
android:textSize="20dp"
android:textStyle="bold"/>
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:inputType="textEmailAddress"
android:ems="10"
android:id="@+id/email1"
android:layout_gravity="center_horizontal" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Password"
android:id="@+id/password5"
android:layout_marginTop="20dp"
android:layout_marginLeft="20dp"
android:textSize="20dp"
android:textStyle="bold"/>
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:inputType="textPassword"
android:ems="10"
android:id="@+id/password1" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Confirm Password"
android:id="@+id/textView"
android:layout_marginTop="20dp"
android:layout_marginLeft="20dp"
android:textSize="20dp"
android:textStyle="bold"/>
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:inputType="textPassword"
android:ems="10"
android:id="@+id/password2" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Phone"
android:id="@+id/textView16"
android:layout_marginTop="20dp"
android:layout_marginLeft="20dp"
android:textSize="20dp"
android:textStyle="bold"/>
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:inputType="text"
android:ems="10"
android:id="@+id/phone" />
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Submit"
android:id="@+id/button3"
android:layout_gravity="center_horizontal"
android:layout_marginTop="40dp"
android:layout_marginLeft="0dp"
android:textSize="20dp"
android:textStyle="bold"
android:onClick="Submit"/>
</LinearLayout>
例外记录
Error parsing data org.json.JSONException: Value <html> of type java.lang.String cannot be converted to JSONObject
04-12 10:00:08.302 6397-6478/com.virasatsolutions.www.donapp E/AndroidRuntime: FATAL EXCEPTION: AsyncTask #3
Process: com.virasatsolutions.www.donapp, PID: 6397
java.lang.RuntimeException: An error occurred while executing doInBackground()
at android.os.AsyncTask$3.done(AsyncTask.java:309)
at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:354)
at java.util.concurrent.FutureTask.setException(FutureTask.java:223)
at java.util.concurrent.FutureTask.run(FutureTask.java:242)
at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:234)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588)
at java.lang.Thread.run(Thread.java:818)
Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String org.json.JSONObject.toString()' on a null object reference
at com.virasatsolutions.www.donapp.sign_up$CreateUser.doInBackground(sign_up.java:169)
at com.virasatsolutions.www.donapp.sign_up$CreateUser.doInBackground(sign_up.java:129)
at android.os.AsyncTask$2.call(AsyncTask.java:295)
at java.util.concurrent.FutureTask.run(FutureTask.java:237)
at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:234)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588)
at java.lang.Thread.run(Thread.java:818)
04-12 10:00:08.437 6397-6422/com.virasatsolutions.www.donapp W/EGL_emulation: eglSurfaceAttrib not implemented
04-12 10:00:08.438 6397-6422/com.virasatsolutions.www.donapp W/OpenGLRenderer: Failed to set EGL_SWAP_BEHAVIOR on surface 0xac43fe00, error=EGL_SUCCESS
04-12 10:00:08.530 6397-6422/com.virasatsolutions.www.donapp E/Surface: getSlotFromBufferLocked: unknown buffer: 0xae6f5af0
04-12 10:00:08.542 6397-6422/com.virasatsolutions.www.donapp E/Surface: getSlotFromBufferLocked: unknown buffer: 0xae6f5460
04-12 10:00:08.783 6397-6397/com.virasatsolutions.www.donapp E/WindowManager: android.view.WindowLeaked: Activity com.virasatsolutions.www.donapp.sign_up has leaked window com.android.internal.policy.PhoneWindow$DecorView{954561b V.E...... R......D 0,0-1026,348} that was originally added here
at android.view.ViewRootImpl.<init>(ViewRootImpl.java:368)
at android.view.WindowManagerGlobal.addView(WindowManagerGlobal.java:299)
at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:85)
at android.app.Dialog.show(Dialog.java:319)
at com.virasatsolutions.www.donapp.sign_up$CreateUser.onPreExecute(sign_up.java:144)
at android.os.AsyncTask.executeOnExecutor(AsyncTask.java:604)
at android.os.AsyncTask.execute(AsyncTask.java:551)
at com.virasatsolutions.www.donapp.sign_up.onClick(sign_up.java:125)
at android.view.View.performClick(View.java:5198)
at android.view.View$PerformClick.run(View.java:21147)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5417)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
答案 0 :(得分：1)
你有错误..
Value <html> of type java.lang.String cannot be converted to JSONObject
您的api服务似乎没有得到很好的响应。实际上api存在一些问题。
如果任何REst-api返回一些html标记值，则表示由于某些exception mismmatch而导致service中出现input一些String。
我无法告诉你确切的原因，但还有其他几个原因。
我认为您应该对从api网址收到的String urlResponse = "{}" // suppose this variable holds the response from the URL.
//then put a check to this variable such that
if(urlResponse.startsWith("{") ){
//in this block you may parse your response from String to JSONObject.
JSONObject v_obj = (JSONObject) new parser().parse(urlResponse);
}else if(urlResponse.startsWith("[")){
//in this block you may parse your response from String to JSONArray.
JSONArray v_obj = (JSONArray) new parser().parse(urlResponse);
}else{
//write if you don't receive correct response.
}
变量添加一项检查。
urlResponse.startsWith("{")注意： - 如果
true返回JSONObject，那么它就是urlResponse.startsWith("[")类型。如果true返回JSONArray，则其中包含class CustomButton: UIButton { override func intrinsicContentSize() -> CGSize { return titleLabel?.intrinsicContentSize() ?? super.intrinsicContentSize() } }。
谢谢..
答案 1 :(得分：0)
API中的问题是它返回HTML内容。
要测试它并找出问题，请使用Postman或任何其他Restful客户端发送请求并获取响应。