Php Android:无法在MYSQL中插入数据
我正在网站上尝试这个例子。我在MYSQL中插入数据。我面临的问题是,当我输入数据并按下ok按钮时,我的应用程序在几秒钟后崩溃,数据库中没有插入任何数据。我正在使用模拟器。这是我的密码Php Android:无法在MYSQL中插入数据,php,android,mysql,crash,Php,Android,Mysql,Crash,我正在网站上尝试这个例子。我在MYSQL中插入数据。我面临的问题是,当我输入数据并按下ok按钮时,我的应用程序在几秒钟后崩溃,数据库中没有插入任何数据。我正在使用模拟器。这是我的密码 public class Register extends Activity implements OnClickListener { private EditText user, pass; private Button mRegister; private ProgressDialog pDialog; JSO
public class Register extends Activity implements OnClickListener {
private EditText user, pass;
private Button mRegister;
private ProgressDialog pDialog;
JSONParser jsonParser = new JSONParser();
private static final String LOGIN_URL = "http://10.0.2.2:8080/allevents/username.php";
private static final String TAG_SUCCESS = "success";
private static final String TAG_MESSAGE = "message";
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.register);
user = (EditText) findViewById(R.id.username);
pass = (EditText) findViewById(R.id.password);
mRegister = (Button) findViewById(R.id.register);
mRegister.setOnClickListener(this);
}
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
new CreateUser().execute();
}
class CreateUser extends AsyncTask<String, String, String> {
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();
}
@Override
protected String doInBackground(String... args) {
int success;
String username = user.getText().toString();
String password = pass.getText().toString();
try {
// Building Parameters
List<NameValuePair> params = new ArrayList<NameValuePair>();
params.add(new BasicNameValuePair("username", username));
params.add(new BasicNameValuePair("password", password));
Log.d("request!", "starting");
JSONObject json = jsonParser.makeHttpRequest(LOGIN_URL, "POST",
params);
Log.d("Login attempt", json.toString());
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;
}
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();
}
}
}
}
公共类寄存器扩展活动实现OnClickListener{
私人编辑文本用户,通过;
私人按钮注册器;
私人对话;
JSONParser JSONParser=新的JSONParser();
私有静态最终字符串登录\u URL=”http://10.0.2.2:8080/allevents/username.php";
私有静态最终字符串标记_SUCCESS=“SUCCESS”;
私有静态最终字符串标记_MESSAGE=“MESSAGE”;
@凌驾
创建时受保护的void(Bundle savedInstanceState){
//TODO自动生成的方法存根
super.onCreate(savedInstanceState);
setContentView(R.layout.register);
user=(EditText)findViewById(R.id.username);
pass=(EditText)findViewById(R.id.password);
mRegister=(按钮)findviewbyd(R.id.register);
mRegister.setOnClickListener(此);
}
@凌驾
公共void onClick(视图v){
//TODO自动生成的方法存根
新建CreateUser().execute();
}
类CreateUser扩展异步任务{
布尔失败=假;
@凌驾
受保护的void onPreExecute(){
super.onPreExecute();
pDialog=新建进度对话框(Register.this);
setMessage(“正在创建用户…”);
pDialog.setUndeterminate(假);
pDialog.setCancelable(真);
pDialog.show();
}
@凌驾
受保护的字符串doInBackground(字符串…args){
成功;
字符串username=user.getText().toString();
字符串密码=pass.getText().toString();
试一试{
//建筑参数
List params=new ArrayList();
添加(新的BasicNameValuePair(“用户名”,用户名));
添加(新的BasicNameValuePair(“密码”,password));
Log.d(“请求!”,“启动”);
JSONObject json=jsonParser.makeHttpRequest(登录地址,“POST”,
参数);
Log.d(“登录尝试”,json.toString());
success=json.getInt(TAG_success);
如果(成功==1){
Log.d(“用户创建的!”,json.toString());
完成();
返回json.getString(TAG_消息);
}否则{
Log.d(“登录失败!”,json.getString(TAG_MESSAGE));
返回json.getString(TAG_消息);
}
}捕获(JSONException e){
e、 printStackTrace();
}
返回null;
}
受保护的void onPostExecute(字符串文件\u url){
//删除产品后关闭对话框
pDialog.disclose();
如果(文件url!=null){
Toast.makeText(Register.this,file\u url,Toast.LENGTH\u LONG)
.show();
}
}
}
}
JSONParser.java
public class JSONParser {
static InputStream is = null;
static JSONObject jObj = null;
static String json = "";
public JSONParser() {
}
public JSONObject getJSONFromUrl(final String url) {
try {
DefaultHttpClient httpClient = new DefaultHttpClient();
HttpPost httpPost = new HttpPost(url);
HttpResponse httpResponse = httpClient.execute(httpPost);
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 {
jObj = new JSONObject(json);
} catch (JSONException e) {
Log.e("JSON Parser", "Error parsing data " + e.toString());
}
return jObj;
}
public JSONObject makeHttpRequest(String url, String method,
List<NameValuePair> params) {
try {
if (method == "POST") {
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") {
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 {
jObj = new JSONObject(json);
} catch (JSONException e) {
Log.e("JSON Parser", "Error parsing data " + e.toString());
}
return jObj;
}
公共类JSONParser{
静态InputStream为空;
静态JSONObject jObj=null;
静态字符串json=“”;
公共JSONParser(){
}
公共JSONObject getJSONFromUrl(最终字符串url){
试一试{
DefaultHttpClient httpClient=新的DefaultHttpClient();
HttpPost HttpPost=新的HttpPost(url);
HttpResponse HttpResponse=httpClient.execute(httpPost);
HttpEntity HttpEntity=httpResponse.getEntity();
is=httpEntity.getContent();
}捕获(不支持的编码异常e){
e、 printStackTrace();
}捕获(客户端协议例外e){
e、 printStackTrace();
}捕获(IOE异常){
e、 printStackTrace();
}
试一试{
BufferedReader reader=新的BufferedReader(新的InputStreamReader(
is,“iso-8859-1”),8);
StringBuilder sb=新的StringBuilder();
字符串行=null;
而((line=reader.readLine())!=null){
sb.追加(第+行“\n”);
}
is.close();
json=sb.toString();
}捕获(例外e){
Log.e(“缓冲区错误”,“错误转换结果”+e.toString());
}
试一试{
jObj=新的JSONObject(json);
}捕获(JSONException e){
Log.e(“JSON解析器”,“错误解析数据”+e.toString());
}
返回jObj;
}
公共JSONObject makeHttpRequest(字符串url、字符串方法、,
列表参数){
试一试{
如果(方法==“POST”){
DefaultHttpClient httpClient=新的DefaultHttpClient();
HttpPost HttpPost=新的HttpPost(url);
setEntity(新的UrlEncodedFormEntity(参数));
HttpResponse HttpResponse=httpClient.execute(httpPost);
HttpEntity HttpEntity=httpResponse.getEntity();
is=httpEntity.getContent();
}else if(方法==“GET”){
DefaultHttpClient httpClient=新的DefaultHttpClient();
String paramString=URLEncodedUtils.format(params,“utf-8”);
url+=“?”+参数字符串;
HttpGet HttpGet=新的HttpGet(url);
HttpResponse HttpResponse=httpClient.execute(httpGet);
HttpEntity HttpEntity=httpResponse.getEntity();
is=httpEntity.getContent();
}
}捕获(不支持的编码异常e){
e、 printStackTrace();
}捕获(客户端协议例外e){
e、 printStackTrace();
}捕获(IOE异常){
e、 printStackTrace();
}
试一试{
BufferedReader reader=新的BufferedReader(新的InputStreamReader(
is,“iso-8859-1”),8);
StringBuilder sb=新的StringBuilder();
字符串行=null;
而((line=reader.readLine())!=null){
sb.追加(第+行“\n”);
}
is.close();
json=sb.toString();
}捕获(例外e){
Log.e(“缓冲区错误”,“错误转换结果”+e.toString());
}
试一试{
jObj=新的JSONObject(json);
}捕获(JSONException e){
Log.e(“JSON解析器”
<?php
$response = array();
if (isset($_POST['username']) && isset($_POST['password'])) {
$username = $_POST['username'];
$password = $_POST['password'];
// include db connect class
require_once __DIR__ . '/db_connect.php';
$db = new DB_CONNECT();
$result = mysql_query("INSERT INTO users(Username,Password) VALUES('$username', '$password')");
if ($result) {
// successfully inserted into database
$response["success"] = 1;
$response["message"] = "Operation successfull";
echo json_encode($response);
} else {
// failed to insert row
$response["success"] = 0;
$response["message"] = "Oops! An error occurred.";
echo json_encode($response);
}
} else {
$response["success"] = 0;
$response["message"] = "Required field(s) is missing";
echo json_encode($response);
}
?>
</body>
</html>
Log.d("Login attempt", json.toString());
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();
}
String[] myparams =
{
((EditText)findViewById(R.id.username)).getText().toString(),
((EditText)findViewById(R.id.password)).getText().toString()
};
new CreateUser().execute(myparams);
protected String doInBackground(String... pParams)
{
String username = pParams[0];
String password= pParams[1];
//Do what you like.
}