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  • Android 有人可以通过输入用户名和密码来帮助获得响应吗？

Android 有人可以通过输入用户名和密码来帮助获得响应吗？

android json apache passwords

Android 有人可以通过输入用户名和密码来帮助获得响应吗？,android,json,apache,passwords,restful-authentication,Android,Json,Apache,Passwords,Restful Authentication,我是android开发的新手。所以plz帮助在代码中添加http，以便在我单击submit按钮时获得响应。我已经完成了用户名和密码的所有验证。但我不知道如何在这段代码中使用JSON RESTFUL。所以请帮我解决这个问题 import android.app.Activity; import android.os.Bundle; import android.widget.Button; import android.widget.EditText; publ

我是android开发的新手。所以plz帮助在代码中添加http，以便在我单击submit按钮时获得响应。我已经完成了用户名和密码的所有验证。但我不知道如何在这段代码中使用JSON RESTFUL。所以请帮我解决这个问题

    import android.app.Activity;
    import android.os.Bundle;
    import android.widget.Button;
    import android.widget.EditText;

 public class MainActivity extends Activity {


 private static final String SERVICE_URI = "http://www.safepestadmin.com.au/windex.php?itfpage=login";
    public  EditText edittext_username, edittext_password;
Button button_submit;



@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);  



    edittext_password = (EditText) findViewById(R.id.login_edittext_password);
    edittext_username = (EditText) findViewById(R.id.login_edittext_username);
    button_submit = (Button) findViewById(R.id.login_button_submit);




    button_submit.setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View arg0) {
            // TODO Auto-generated method stub

               String email = edittext_username.getText().toString().trim();
               String emailPattern = "[a-zA-Z0-9._-]+@[a-z]+\\.+[a-z]+";
               String pwd = edittext_password.getText().toString();



               if (email.matches("")   && pwd.matches(""))
               {
                   Toast.makeText(getApplicationContext(), "Please enter a username and a password", Toast.LENGTH_SHORT).show();
               }
               else if (email.matches(emailPattern)    && pwd.matches(""))
                   {
                   Toast.makeText(getApplicationContext(),"Please enter a password",Toast.LENGTH_SHORT).show();
                   }

                  else if (email.matches("") && pwd.length()>0) 
                  {
                  Toast.makeText(getApplicationContext(),"Please enter a username", Toast.LENGTH_SHORT).show();
                  }         

                  else if (!email.matches(emailPattern) && pwd.length()>0) {
                      Toast.makeText(getApplicationContext(), "Invalid email address", Toast.LENGTH_SHORT).show();
                  }
                  else if (!email.matches(emailPattern)  && pwd.matches("")) {
                      Toast.makeText(getApplicationContext(), "Please enter a password", Toast.LENGTH_SHORT).show();
                  }
                  else if (email.matches("alam@gmail.com") && pwd.matches("12345")) {
                      Toast.makeText(getApplicationContext(), "Successfully Logged In", Toast.LENGTH_LONG).show();
                  }
                  else {
                      Toast.makeText(getApplicationContext(), "Please enter registered email and password", Toast.LENGTH_LONG).show();
                  }

        }       
    });

}

   }
您可以尝试以下方法：

  • 将您的密码和用户名发送到服务器
  • 在服务器中，在数据库中保持密码加密
  • 当用户名和密码进入webservice时，您可以获取用户密码并解密，然后将其与来自客户端的密码进行比较
  • 如果密码匹配，您可以发送客户端，只要true如果错误，您可以发送false
  • 在客户端中，如果来自webservice的true，您可以授予输入person的权限
客户端代码：

您可以创建如下所示的类： 
公共类web\u api\u get任务{
@凌驾
公共字符串doInBackground（对象…参数）{
StringBuilder=新的StringBuilder（）；
HttpParams params2=新的BasicHttpParams（）；
HttpProtocolParams.setVersion（params2，HttpVersion.HTTP_1_1）；
HttpProtocolParams.setContentCharset（参数2，“UTF-8”）；
params2.setBooleanParameter（“http.protocol.expect continue”，false）；
HttpClient=新的默认HttpClient（参数2）；
HttpGet HttpGet=新的HttpGet（参数[0]+“”）；
试试{
HttpResponse response=client.execute（httpGet）；
StatusLine StatusLine=response.getStatusLine（）；
int statusCode=statusLine.getStatusCode（）；
如果（状态代码==200）{
HttpEntity=response.getEntity（）；
InputStream内容=entity.getContent（）；
BufferedReader=新的BufferedReader（新的InputStreamReader（内容））；
弦线；
而（（line=reader.readLine（））！=null）{
builder.append（行）；
}
}否则{
//Log.e（ParseJSON.class.toString（），“未能下载文件”）；
} 
}捕获（例外e）{
}
返回builder.toString（）；
} 
}
然后你可以这样称呼它：

String result=new web_api_get（）.execute（“此处的链接包括密码和用户名”）.get（）

然后，
结果
会让您从webservice中获得true或false

尝试在AsyncTask类中执行这段代码

@Override
protected Integer doInBackground(Context... params) {
// TODO Auto-generated method stub
try {

    HttpClient httpclient = new DefaultHttpClient();
    HttpGet httpget = new HttpGet(("http://URL/Login_Auth? Username="+username+"").replace(" ","%20"));
    HttpResponse response = httpclient.execute(httpget);
    HttpEntity entity =response.getEntity();
    String responseData = EntityUtils.toString(entity);

            Log.d("====Response====",""+responseData.toString());
    }
    }
在Log.d（）中，您可以从URL获得响应。

使用aysctask并将用户名和密码发送到服务器。使用此代码并在单击登录按钮后调用此asyctask

 private class MyAsyncTask extends AsyncTask<Void, Void, Void>
{
        ProgressDialog mProgressDialog;
        @Override
        protected void onPostExecute(Void result) {
            mProgressDialog.dismiss();
        }

        @Override
        protected void onPreExecute() {
            mProgressDialog = ProgressDialog.show(MainActivity.this, "Loading...", "Data is Loading...");
        }

        @Override
        protected Void doInBackground(Void... params) {

            //Create new default HTTPClient
            httpclient = new DefaultHttpClient();

            //Create new HTTP POST with URL to php file as parameter
            httppost = new HttpPost("http://10.0.2.2/myteamapp/index.php"); 

            //Assign input text to strings
            username = etUser.getText().toString();
            password = etPass.getText().toString();



            //Next block of code needs to be surrounded by try/catch block for it to work
            try {
                //Create new Array List
                nameValuePairs = new ArrayList<NameValuePair>(2);

                //place them in an array list
                nameValuePairs.add(new BasicNameValuePair("user", "username"));
                nameValuePairs.add(new BasicNameValuePair("pass", "password"));

                //Add array list to http post
                httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));


                //assign executed form container to response
                response = httpclient.execute(httppost); //response from the PHP file

                //check status code, need to check status code 200
                if(response.getStatusLine().getStatusCode() == 200){

                    //assign response entity to http entity
                    entity = response.getEntity();

                    //check if entity is not null
                    if(entity != null){


                        //Create new input stream with received data assigned
                        InputStream instream = entity.getContent();

                        //Create new JSON Object. assign converted data as parameter.
                        JSONObject jsonResponse = new JSONObject(convertStreamToString(instream));

                        //assign json responses to local strings
                        String retUser = jsonResponse.getString("user");//mySQL table field
                        String retPass = jsonResponse.getString("pass");

                        //Validate login
                        if(username.equals(retUser)&& password.equals(retPass)){ //Check whether 'retUser' and 'retPass' matches username/password 

                            //Display a Toast saying login was a success
                            Toast.makeText(getBaseContext(), "Successful", Toast.LENGTH_SHORT).show();


                        } else {
                            //Display a Toast saying it failed.

                            Toast.makeText(getBaseContext(), "Invalid Login Details", Toast.LENGTH_SHORT).show();
                        }

                    }


                }


            } catch(Exception e){

               // e.printStackTrace();
                //Display toast when there is a connection error
                //Change message to something more friendly
               Toast.makeText(getBaseContext(), e.toString(), Toast.LENGTH_SHORT).show();
               Toast.makeText(getBaseContext(), "Connection Error", Toast.LENGTH_SHORT).show();

               return null;
            }



            return null;
        }
    }
}

私有类MyAsyncTask扩展了AsyncTask
{
进程对话框；
@凌驾
受保护的void onPostExecute（void结果）{
mProgressDialog.disclose（）；
}
@凌驾
受保护的void onPreExecute（）{
mProgressDialog=ProgressDialog.show（MainActivity.this，“正在加载…”，数据正在加载…”）；
}
@凌驾
受保护的Void doInBackground（Void…参数）{
//创建新的默认HTTPClient
httpclient=新的DefaultHttpClient（）；
//以php文件的URL作为参数创建新的HTTP POST
httppost=新的httppost（“http://10.0.2.2/myteamapp/index.php"); 
//将输入文本指定给字符串
username=etUser.getText（）.toString（）；
password=etPass.getText（）.toString（）；
//下一个代码块需要被try/catch块包围，才能正常工作
试一试{
//创建新数组列表
nameValuePairs=新的ArrayList（2）；
//将它们放入数组列表中
添加（新的BasicNameValuePair（“用户”、“用户名”）；
添加（新的BasicNameValuePair（“pass”、“password”）；
//将数组列表添加到http post
setEntity（新的UrlEncodedFormEntity（nameValuePairs））；
//将已执行的表单容器分配给响应
response=httpclient.execute（httppost）；//来自PHP文件的响应
//检查状态代码，需要检查状态代码200
if（response.getStatusLine（）.getStatusCode（）==200）{
//将响应实体分配给http实体
entity=response.getEntity（）；
//检查实体是否不为空
如果（实体！=null）{
//使用已分配的接收数据创建新的输入流
InputStream instream=entity.getContent（）；
//创建新的JSON对象。将转换后的数据指定为参数。
JSONObject jsonResponse=新的JSONObject（convertStreamToString（instream））；
//将json响应分配给本地字符串
String retUser=jsonResponse.getString（“用户”）；//mySQL表字段
String retPass=jsonResponse.getString（“pass”）；
//验证登录
如果（username.equals（retUser）和&password.equals（retPass））{//检查“retUser”和“retPass”是否与用户名/密码匹配
//显示祝酒词，表示登录成功
Toast.makeText（getBaseContext（），“Successful”，Toast.LENGTH_SHORT.show（）；
}否则{
//展示一个祝酒词，说它失败了。
Toast.makeText（getBaseContext（），“无效的登录详细信息”，Toast.LENGTH_SHORT.show（）；
}
}
}
}捕获（例外e）{
//e.printStackTrace（）；
//展示吐司w

 private class MyAsyncTask extends AsyncTask<Void, Void, Void>
{
        ProgressDialog mProgressDialog;
        @Override
        protected void onPostExecute(Void result) {
            mProgressDialog.dismiss();
        }

        @Override
        protected void onPreExecute() {
            mProgressDialog = ProgressDialog.show(MainActivity.this, "Loading...", "Data is Loading...");
        }

        @Override
        protected Void doInBackground(Void... params) {

            //Create new default HTTPClient
            httpclient = new DefaultHttpClient();

            //Create new HTTP POST with URL to php file as parameter
            httppost = new HttpPost("http://10.0.2.2/myteamapp/index.php"); 

            //Assign input text to strings
            username = etUser.getText().toString();
            password = etPass.getText().toString();



            //Next block of code needs to be surrounded by try/catch block for it to work
            try {
                //Create new Array List
                nameValuePairs = new ArrayList<NameValuePair>(2);

                //place them in an array list
                nameValuePairs.add(new BasicNameValuePair("user", "username"));
                nameValuePairs.add(new BasicNameValuePair("pass", "password"));

                //Add array list to http post
                httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));


                //assign executed form container to response
                response = httpclient.execute(httppost); //response from the PHP file

                //check status code, need to check status code 200
                if(response.getStatusLine().getStatusCode() == 200){

                    //assign response entity to http entity
                    entity = response.getEntity();

                    //check if entity is not null
                    if(entity != null){


                        //Create new input stream with received data assigned
                        InputStream instream = entity.getContent();

                        //Create new JSON Object. assign converted data as parameter.
                        JSONObject jsonResponse = new JSONObject(convertStreamToString(instream));

                        //assign json responses to local strings
                        String retUser = jsonResponse.getString("user");//mySQL table field
                        String retPass = jsonResponse.getString("pass");

                        //Validate login
                        if(username.equals(retUser)&& password.equals(retPass)){ //Check whether 'retUser' and 'retPass' matches username/password 

                            //Display a Toast saying login was a success
                            Toast.makeText(getBaseContext(), "Successful", Toast.LENGTH_SHORT).show();


                        } else {
                            //Display a Toast saying it failed.

                            Toast.makeText(getBaseContext(), "Invalid Login Details", Toast.LENGTH_SHORT).show();
                        }

                    }


                }


            } catch(Exception e){

               // e.printStackTrace();
                //Display toast when there is a connection error
                //Change message to something more friendly
               Toast.makeText(getBaseContext(), e.toString(), Toast.LENGTH_SHORT).show();
               Toast.makeText(getBaseContext(), "Connection Error", Toast.LENGTH_SHORT).show();

               return null;
            }



            return null;
        }
    }
}