我尝试进行注册过程，但发生了这些，我遇到了一些错误。
愿有人帮助我..由于我不知道该怎么办，我已经搜索了其他类似的情况，但仍然..不明白..
日志猫
11-21 15:30:30.762: D/dalvikvm(3859): GC_FOR_ALLOC freed 126K, 10% free 3294K/3636K, paused 7ms, total 7ms
11-21 15:30:53.194: E/ini(3859): bisa
11-21 15:30:53.234: D/dalvikvm(3859): GC_FOR_ALLOC freed 161K, 10% free 3503K/3884K, paused 11ms, total 11ms
11-21 15:30:53.234: I/dalvikvm-heap(3859): Grow heap (frag case) to 4.705MB for 1127532-byte allocation
11-21 15:30:53.250: D/dalvikvm(3859): GC_FOR_ALLOC freed 1K, 8% free 4602K/4988K, paused 9ms, total 14ms
11-21 15:30:53.270: E/ini(3859): bisa
11-21 15:30:53.310: D/request!(3859): starting
11-21 15:30:53.330: W/EGL_genymotion(3859): eglSurfaceAttrib not implemented
11-21 15:31:01.970: E/JSON Parser(3859): Error parsing data org.json.JSONException: Value <br of type java.lang.String cannot be converted to JSONObject
11-21 15:31:01.974: W/dalvikvm(3859): threadid=15: thread exiting with uncaught exception (group=0xa4b74648)
11-21 15:31:01.982: E/AndroidRuntime(3859): FATAL EXCEPTION: AsyncTask #5
11-21 15:31:01.982: E/AndroidRuntime(3859): java.lang.RuntimeException: An error occured while executing doInBackground()
11-21 15:31:01.982: E/AndroidRuntime(3859): at android.os.AsyncTask$3.done(AsyncTask.java:299)
11-21 15:31:01.982: E/AndroidRuntime(3859): at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:352)
11-21 15:31:01.982: E/AndroidRuntime(3859): at java.util.concurrent.FutureTask.setException(FutureTask.java:219)
11-21 15:31:01.982: E/AndroidRuntime(3859): at java.util.concurrent.FutureTask.run(FutureTask.java:239)
11-21 15:31:01.982: E/AndroidRuntime(3859): at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:230)
11-21 15:31:01.982: E/AndroidRuntime(3859): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1080)
11-21 15:31:01.982: E/AndroidRuntime(3859): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573)
11-21 15:31:01.982: E/AndroidRuntime(3859): at java.lang.Thread.run(Thread.java:841)
11-21 15:31:01.982: E/AndroidRuntime(3859): Caused by: java.lang.NullPointerException
11-21 15:31:01.982: E/AndroidRuntime(3859): at com.android.GoTrip.Register$CreateUser.doInBackground(Register.java:147)
11-21 15:31:01.982: E/AndroidRuntime(3859): at com.android.GoTrip.Register$CreateUser.doInBackground(Register.java:1)
11-21 15:31:01.982: E/AndroidRuntime(3859): at android.os.AsyncTask$2.call(AsyncTask.java:287)
11-21 15:31:01.982: E/AndroidRuntime(3859): at java.util.concurrent.FutureTask.run(FutureTask.java:234)
11-21 15:31:01.982: E/AndroidRuntime(3859): ... 4 more
11-21 15:31:02.350: W/EGL_genymotion(3859): eglSurfaceAttrib not implemented
11-21 15:31:02.814: E/WindowManager(3859): Activity com.android.GoTrip.Register has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView{52784ba4 V.E..... R......D 0,0-684,192} that was originally added here
11-21 15:31:02.814: E/WindowManager(3859): android.view.WindowLeaked: Activity com.android.GoTrip.Register has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView{52784ba4 V.E..... R......D 0,0-684,192} that was originally added here
11-21 15:31:02.814: E/WindowManager(3859): at android.view.ViewRootImpl.<init>(ViewRootImpl.java:345)
11-21 15:31:02.814: E/WindowManager(3859): at android.view.WindowManagerGlobal.addView(WindowManagerGlobal.java:239)
11-21 15:31:02.814: E/WindowManager(3859): at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:69)
11-21 15:31:02.814: E/WindowManager(3859): at android.app.Dialog.show(Dialog.java:281)
11-21 15:31:02.814: E/WindowManager(3859): at com.android.GoTrip.Register$CreateUser.onPreExecute(Register.java:103)
11-21 15:31:02.814: E/WindowManager(3859): at android.os.AsyncTask.executeOnExecutor(AsyncTask.java:586)
11-21 15:31:02.814: E/WindowManager(3859): at android.os.AsyncTask.execute(AsyncTask.java:534)
11-21 15:31:02.814: E/WindowManager(3859): at com.android.GoTrip.Register.btnRegister(Register.java:83)
11-21 15:31:02.814: E/WindowManager(3859): at java.lang.reflect.Method.invokeNative(Native Method)
11-21 15:31:02.814: E/WindowManager(3859): at java.lang.reflect.Method.invoke(Method.java:525)
11-21 15:31:02.814: E/WindowManager(3859): at android.view.View$1.onClick(View.java:3628)
11-21 15:31:02.814: E/WindowManager(3859): at android.view.View.performClick(View.java:4240)
11-21 15:31:02.814: E/WindowManager(3859): at android.view.View$PerformClick.run(View.java:17721)
11-21 15:31:02.814: E/WindowManager(3859): at android.os.Handler.handleCallback(Handler.java:730)
11-21 15:31:02.814: E/WindowManager(3859): at android.os.Handler.dispatchMessage(Handler.java:92)
11-21 15:31:02.814: E/WindowManager(3859): at android.os.Looper.loop(Looper.java:137)
11-21 15:31:02.814: E/WindowManager(3859): at android.app.ActivityThread.main(ActivityThread.java:5103)
11-21 15:31:02.814: E/WindowManager(3859): at java.lang.reflect.Method.invokeNative(Native Method)
11-21 15:31:02.814: E/WindowManager(3859): at java.lang.reflect.Method.invoke(Method.java:525)
11-21 15:31:02.814: E/WindowManager(3859): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737)
11-21 15:31:02.814: E/WindowManager(3859): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
11-21 15:31:02.814: E/WindowManager(3859): at dalvik.system.NativeStart.main(Native Method)
11-21 15:31:04.154: I/Process(3859): Sending signal. PID: 3859 SIG: 9
JSON praser
public class JSONParser {
static InputStream is = null;
static String json = "";
static JSONObject jObj = null;
public static JSONObject getJSONfromURL(String url) {
String result = "";
JSONObject jArray = null;
Log.d("Json", "1");
// http post
try {
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost(url);
HttpResponse response = httpclient.execute(httppost);
HttpEntity entity = response.getEntity();
is = entity.getContent();
} catch (Exception e) {
Log.e("log_tag", "Error in http connection " + e.toString());
}
// convert response to string
try {
BufferedReader reader = new BufferedReader(new InputStreamReader(
is, "iso-8859-1"), 8);
StringBuilder sb = new StringBuilder();
String line = null;
while ((line = reader.readLine()) != null) {
sb.append(line + "'n");
}
is.close();
result = sb.toString();
} catch (Exception e) {
Log.e("log_tag", "Error converting result " + e.toString());
}
Log.d("Json", "2");
Log.d("Json", result);
try {
jArray = new JSONObject(result);
} catch (JSONException e) {
Log.e("log_tag", "Error parsing data " + e.toString());
}
return jArray;
}
public static JSONObject makeHttpRequest(String url, String method,
List<NameValuePair> params) {
try {
// check for request method
if (method == "POST") {
// request method is POST
// defaultHttpClient
DefaultHttpClient 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();
} else if (method == "GET") {
// request method is GET
DefaultHttpClient httpClient = new DefaultHttpClient();
String paramString = URLEncodedUtils.format(params, "utf-8");
url += "?" + paramString;
HttpGet httpGet = new HttpGet(url);
HttpResponse httpResponse = httpClient.execute(httpGet);
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, "iso-8859-1"), 8);
StringBuilder sb = new StringBuilder();
String line = null;
while ((line = reader.readLine()) != null) {
sb.append(line + "'n");
}
is.close();
json = sb.toString();
} catch (Exception e) {
Log.e("Buffer Error", "Error converting result " + e.toString());
}
// try parse the string to a JSON object
try {
jObj = new JSONObject(json);
} catch (JSONException e) {
Log.e("JSON Parser", "Error parsing data " + e.toString());
}
// return JSON String
return jObj;
}
}
注册.java
public class Register extends Activity {
EditText inputUsername;
EditText inputNama;
EditText inputEmail;
EditText inputPassword;
EditText inputPassword2;
Button btnRegister;
Button btnLogin;
private ProgressDialog pDialog;
JSONParser jsonParser = new JSONParser();
private static final String LOGIN_URL = "http://10.0.3.2/1aaa/register.php";
private static final String TAG_SUCCESS = "success";
private static final String TAG_MESSAGE = "message";
@Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
setContentView(R.layout.register);
inputUsername = (EditText) findViewById(R.id.username);
inputNama = (EditText) findViewById(R.id.name);
inputEmail = (EditText) findViewById(R.id.email);
inputPassword = (EditText) findViewById(R.id.password);
inputPassword2 = (EditText) findViewById(R.id.password2);
btnRegister = (Button) findViewById(R.id.btnRegister);
btnLogin = (Button) findViewById(R.id.btnLinkToLogin);
}
public void btnRegister(View v) {
// TODO Auto-generated method stub
Log.e("ini", "bisa");
new CreateUser().execute();
Log.e("ini", "bisa");
}
class CreateUser extends AsyncTask<String, String, String> {
/**
* Before starting background thread Show Progress Dialog
* */
boolean failure = false;
@Override
protected void onPreExecute() {
super.onPreExecute();
pDialog = new ProgressDialog(Register.this);
pDialog.setMessage("Creating User...");
pDialog.setIndeterminate(false);
pDialog.setCancelable(true);
pDialog.show();
}
@SuppressWarnings("static-access")
@Override
protected String doInBackground(String... args) {
// TODO Auto-generated method stub
// Check for success tag
int success;
String username = inputUsername.getText().toString();
String name = inputNama.getText().toString();
String email = inputEmail.getText().toString();
String password = inputPassword.getText().toString();
String password2 = inputPassword2.getText().toString();
Encrypt a = new Encrypt();
a.encrrypte(password);
String encpassword = a.GetHashtext();
a.encrrypte(password2);
String encretypepwd = a.GetHashtext();
Date c = Calendar.getInstance().getTime();
SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss");
String output = formatter.format(c);
try {
// Building Parameters
List<NameValuePair> params = new ArrayList<NameValuePair>();
params.add(new BasicNameValuePair("username", username));
params.add(new BasicNameValuePair("name", name));
params.add(new BasicNameValuePair("email", email));
params.add(new BasicNameValuePair("password", encpassword));
params.add(new BasicNameValuePair("password2", encretypepwd));
params.add(new BasicNameValuePair("ctime", output));
params.add(new BasicNameValuePair("date_edit_profile", "0000-00-00 00:00:00"));
Log.d("request!", "starting");
//Posting user data to script
JSONObject json = jsonParser.makeHttpRequest(
LOGIN_URL, "POST", params);
// full json response
Log.d("Login attempt", json.toString());
// json success element
success = json.getInt(TAG_SUCCESS);
if (success == 1) {
Log.d("User Created!", json.toString());
finish();
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;
}
/**
* After completing background task Dismiss the progress dialog
* **/
protected void onPostExecute(String file_url) {
// dismiss the dialog once product deleted
pDialog.dismiss();
if (file_url != null){
Toast.makeText(Register.this, file_url, Toast.LENGTH_LONG).show();
}
}
}
public void btnLogin(View v){
Intent s = new Intent(this, Login.class);
startActivity(s);
}
public class Encrypt{
private String hashtext= "";
public void encrrypte(String yourString){
try {
byte[] bytesOfMessage = yourString.getBytes("UTF-8");
MessageDigest md = MessageDigest.getInstance("MD5");
byte[] thedigest = md.digest(bytesOfMessage);
BigInteger bigInt = new BigInteger(1,thedigest);
hashtext = bigInt.toString(16);
// Now we need to zero pad it if you actually want the full 32 chars.
while(hashtext.length() < 32 ){
hashtext = "0"+hashtext;
}
} catch (UnsupportedEncodingException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (NoSuchAlgorithmException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public String GetHashtext(){
return hashtext;
}
}
}
注册.php
<?php
require("config.php");
$email="";
function test_input($data){
$data = trim($data);
$data = stripslashes($data);
$data = htmlspecialchars($data);
return $data;
}
if (!empty($_POST)) {
if (empty($_POST['username'])) {
// Create some data that will be the JSON response
$response["success"] = 0;
$response["message"] = "Please input username";
die(json_encode($response));
}
if (empty($_POST['name'])) {
$response["success"] = 0;
$response["message"] = "Please input your name";
die(json_encode($response));
}
if (empty($_POST['email'])) {
$response["success"] = 0;
$response["message"] = "Please input your email address";
die(json_encode($response));
}
else{
$email = test_input($_POST['email']);
if(!preg_match("/(['w'-]+'@['w'-]+'.['w'-]+)/",$email)){
$response["success"] = 0;
$response["message"] = "Input the correct email address form";
die(json_encode($response));
}
}
if (empty($_POST['password'])) {
$response["success"] = 0;
$response["message"] = "Please input a Password.";
die(json_encode($response));
}
else{
if(strlen($_POST['password'])<6){
$response["success"] = 0;
$response["message"] = "password length should be longer than 6 characters";
die(json_encode($response));
}
else{
if ($_POST['password']!=$_POST['password2']){
$response["success"] = 0;
$response["message"] = "Password doesn't match";
die(json_encode($response));
}
}
}
$query = " SELECT 1 FROM user WHERE username = :user";
$query_params = array(
':user' => $_POST['username']
);
try {
// These two statements run the query against your database table.
$stmt = $db->prepare($query);
$result = $stmt->execute($query_params);
}
catch (PDOException $ex) {
$response["success"] = 0;
$response["message"] = "Database Error1. Please Try Again!";
die(json_encode($response));
}
$row = $stmt->fetch();
if ($row) {
$response["success"] = 0;
$response["message"] = "I'm sorry, this username is already in use";
die(json_encode($response));
}
$query = ("INSERT INTO user ( username, name, password, email, role_id,ctime) VALUES ( :user, :name, :password, :email , :role_id, :ctime) ");
//Again, we need to update our tokens with the actual data:
$query_params = array(
':user' => $_POST['username'],
':name' => $_POST['name'],
':password' => $_POST['password'],
':email' => $_POST['email'],
':role_id' => '2',
':ctime' => $_POST['ctime'],
);
try {
$stmt = $db->prepare($query);
$result = $stmt->execute($query_params);
}
catch (PDOException $ex) {
$response["success"] = 0;
$response["message"] = "Database Error2. Please Try Again!";
die(json_encode($response));
}
$response["success"] = 1;
$response["message"] = "Username Successfully Added!";
echo json_encode($response);
} else {
?>
<h1>Register</h1>
<form action="register.php" method="post">
Username:<br />
<input type="text" name="username" value="" />
<br /><br />
Name:<br />
<input type="text" name="name" value="" />
<br /><br />
Email:<br />
<input type="text" name="email" value="" />
<br /><br />
Password:<br />
<input type="password" name="password" value="" />
<br /><br />
Confirm Your Password:<br />
<input type="password" name="password2" value="" />
<br /><br />
<input type="submit" value="Register New User" />
</form>
<?php
}
?>
注册.xml
<!-- View Title Label -->
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="7dp"
android:layout_marginRight="7dp"
android:layout_marginTop="15dp"
android:gravity="center_horizontal"
android:orientation="vertical" >
<TextView
android:id="@+id/TextView1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_marginBottom="10dip"
android:text="REGISTER"
android:textSize="25dip"
android:textStyle="bold" />
<!-- Name Label -->
<TextView
android:id="@+id/TextView2"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="@+id/TextView1"
android:text="Username" />
<!-- Name TextField -->
<EditText
android:id="@+id/username"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="@+id/TextView2" />
<TextView
android:id="@+id/TextView3"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="@+id/username"
android:text="Name" />
<!-- NAME TextField -->
<EditText
android:id="@+id/name"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="@+id/TextView3" />
<!-- Email Label -->
<TextView
android:id="@+id/TextView4"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="@+id/name"
android:text="Email" />
<!-- Email TextField -->
<EditText
android:id="@+id/email"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="@+id/TextView4" />
<!-- Password Label -->
<TextView
android:id="@+id/TextView5"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="@+id/registerEmail"
android:text="Password" />
<!-- Password TextField -->
<EditText
android:id="@+id/password"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="@+id/TextView5"
android:password="true" />
<!-- Password Label -->
<TextView
android:id="@+id/TextView6"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="@+id/registerEmail"
android:text="Re-type Password" />
<!-- Password TextField -->
<EditText
android:id="@+id/password2"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="@+id/TextView5"
android:password="true" />
<!-- Error message -->
<!-- Login Button -->
<Button
android:id="@+id/btnRegister"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="@+id/register_error"
android:layout_marginTop="2dip"
android:text="Register"
android:onClick="btnRegister" />
<!-- Link to Login Screen -->
<Button
android:id="@+id/btnLinkToLogin"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="@+id/btnRegister"
android:layout_marginTop="4dip"
android:background="@null"
android:text="Already registered. Login Me!"
android:textColor="#c90505"
android:textStyle="bold"
android:onClick="btnLogin" />
</LinearLayout>
<LinearLayout
android:id="@+id/footer"
android:layout_width="fill_parent"
android:layout_height="65dip"
android:layout_alignParentBottom="true"
android:background="@layout/zfooter"
android:orientation="vertical" >
</LinearLayout>
请帮我:(
以下错误是您问题的根源 -
11-21 15：31：01.970：E/JSON 解析器（3859）：解析数据时出错 org.json.JSONException：无法将 java.lang.String 类型的值<br转换为 JSONObject
NullPointerException 是 JSON 解析器无法解析来自 URL 的响应的结果。
您必须验证从http://10.0.3.2/1aaa/register.php收到的 POST 响应是否为 JSON 格式。
从错误代码来看，响应中似乎有一个<br />，导致解析错误。
Caused by: java.lang.NullPointerException
at com.android.GoTrip.Register$CreateUser.doInBackground(Register.java:147)
也许这是因为json.getInt(TAG_SUCCESS)在 success 中存储了一个 null 值，因为解析器没有从 register.php 获得正确的响应，或者您使用了错误的键（响应中不存在TAG_SUCCESS）。
对于调试，您可以尝试删除if块并直接打印出success和json.toString()的值。