JSON
myeclipse接口
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public String loginb(String phone, String pwd) throws Exception,SQLException { ConnectDatabase(); String sql="select id,flag from user where phone=? and password=?"; ps=con.prepareStatement(sql); ps.setString(1, phone); ps.setString(2, pwd); rs=ps.executeQuery(); if(rs.next()){ int id=rs.getInt(1); int flag=rs.getInt(2); User u =new User(); u.setId(id); u.setId(flag); u.setPhone(phone); u.setPassword(pwd); // return u; // 写成json数据 if(u!=null){ Gson gson=new Gson(); String json=gson.toJson(u); return json; } } closeResource(); return null; }
Android Studio
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package com.qh.androiddemo; import android.animation.Animator; import android.animation.AnimatorListenerAdapter; import android.annotation.TargetApi; import android.app.Activity; import android.content.Context; import android.content.Intent; import android.content.SharedPreferences; import android.content.pm.PackageManager; import android.os.StrictMode; import android.renderscript.Int2; import android.support.annotation.NonNull; import android.support.design.widget.Snackbar; import android.support.v7.app.AppCompatActivity; import android.app.LoaderManager.LoaderCallbacks; import android.content.ContentResolver; import android.content.CursorLoader; import android.content.Loader; import android.database.Cursor; import android.net.Uri; import android.os.AsyncTask; import android.os.Build.VERSION; import android.os.Build; import android.os.Bundle; import android.provider.ContactsContract; import android.text.TextUtils; import android.view.KeyEvent; import android.view.View; import android.view.View.OnClickListener; import android.view.inputmethod.EditorInfo; import android.widget.ArrayAdapter; import android.widget.AutoCompleteTextView; import android.widget.Button; import android.widget.EditText; import android.widget.TextView; import android.widget.Toast; import com.qh.androiddemo.util.ConfigUtil; import com.qh.androiddemo.util.SoapUtil; import org.json.JSONArray; import org.json.JSONException; import org.json.JSONObject; import java.util.ArrayList; import java.util.HashMap; import java.util.Iterator; import java.util.List; import static android.Manifest.permission.READ_CONTACTS; import static android.R.attr.id; /** * A login screen that offers login via email/password. */ public class LoginActivity extends AppCompatActivity { /** * Id to identity READ_CONTACTS permission request. */ private static final int REQUEST_READ_CONTACTS = 0; /** * A dummy authentication store containing known user names and passwords. * TODO: remove after connecting to a real authentication system. */ private static final String[] DUMMY_CREDENTIALS = new String[]{ "foo@example.com:hello", "bar@example.com:world" // Toast.makeText(getApplicationContext(), "登录失败!", Toast.LENGTH_LONG).show(); }; /** * Keep track of the login task to ensure we can cancel it if requested. */ private UserLoginTask mAuthTask = null; // UI references. private AutoCompleteTextView mEmailView; private EditText mPasswordView; private View mProgressView; private View mLoginFormView; ConfigUtil configUtil; private SharedPreferences sp; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_login); // Set up the login form. //获得实例对象 sp = this.getSharedPreferences("userInfo", Context.MODE_WORLD_READABLE); if(sp.getBoolean("AUTO_ISCHECK", true)) { //跳转界面 Intent intent = new Intent(LoginActivity.this,index.class); LoginActivity.this.startActivity(intent); } configUtil=new ConfigUtil(this); mEmailView = (AutoCompleteTextView) findViewById(R.id.email); mPasswordView = (EditText) findViewById(R.id.password); mPasswordView.setOnEditorActionListener(new TextView.OnEditorActionListener() { @Override public boolean onEditorAction(TextView textView, int id, KeyEvent keyEvent) { if (id == R.id.login || id == EditorInfo.IME_NULL) { attemptLogin(); return true; } return false; } }); Button mEmailSignInButton = (Button) findViewById(R.id.email_sign_in_button); StrictMode.ThreadPolicy policy=new StrictMode.ThreadPolicy.Builder().permitAll().build(); StrictMode.setThreadPolicy(policy); mEmailSignInButton.setOnClickListener(new OnClickListener() { @Override public void onClick(View view) { attemptLogin(); } }); mLoginFormView = findViewById(R.id.login_form); mProgressView = findViewById(R.id.login_progress); } public void reg(View v) { Intent intent=new Intent(LoginActivity.this,RegActivity.class); startActivity(intent); } public void wjmm(View v){ Intent intent=new Intent(LoginActivity.this,PasswordActivity.class); startActivity(intent); } /** * Attempts to sign in or register the account specified by the login form. * If there are form errors (invalid email, missing fields, etc.), the * errors are presented and no actual login attempt is made. */ private void attemptLogin() { if (mAuthTask != null) { return ; } // Reset errors. mEmailView.setError(null); mPasswordView.setError(null); // Store values at the time of the login attempt. String email = mEmailView.getText().toString(); String password = mPasswordView.getText().toString(); boolean cancel = false; View focusView = null; // Check for a valid password, if the user entered one. if (!TextUtils.isEmpty(password) && !isPasswordValid(password)) { mPasswordView.setError(getString(R.string.error_invalid_password)); focusView = mPasswordView; cancel = true; } // Check for a valid email address. if (TextUtils.isEmpty(email)) { mEmailView.setError(getString(R.string.error_field_required)); focusView = mEmailView; cancel = true; } else if (!isEmailValid(email)) { mEmailView.setError(getString(R.string.error_invalid_email)); focusView = mEmailView; cancel = true; } if (cancel) { // There was an error; don't attempt login and focus the first // form field with an error. focusView.requestFocus(); } else { // Show a progress spinner, and kick off a background task to // perform the user login attempt. showProgress(true); mAuthTask = new UserLoginTask(email, password); mAuthTask.execute((Void) null); login(); } } private void login(){ String endPort = "cre_ServicePort"; String method="loginb_service"; Object[] objects=new Object[]{ mEmailView.getText().toString(), mPasswordView.getText().toString() }; SoapUtil soapUtil = new SoapUtil(); Object object = soapUtil.connect(endPort,method,objects); if(object.toString()!=null){ // configUtil.setUserJson(object.toString()); //记住用户名、密码、 SharedPreferences.Editor editor = sp.edit(); editor.putString("USER_NAME", object.toString()); editor.putBoolean("AUTO_ISCHECK", true); editor.commit(); // SharedPreferences sharedPreferences= getSharedPreferences("test", Activity.MODE_PRIVATE); //实例化SharedPreferences.Editor对象 // SharedPreferences.Editor editor = sharedPreferences.edit(); //用putString的方法保存数据 // editor.putBoolean("USER_ISLOGIN",true); // editor.putString("USER_ID", object.toString()); // editor.putString("USER_PWD", "pwd123"); //提交当前数据 // editor.apply(); // Toast.makeText(getApplicationContext(), // sp.getString("USER_NAME",object.toString())+ sp.getBoolean("AUTO_ISCHECK",true), // Toast.LENGTH_LONG).show(); // 解析json数据 String jsonString=sp.getString("USER_NAME",object.toString()); JSONObject demoJson = null; try { demoJson = new JSONObject(jsonString); // String name = demoJson.getString("phone"); int id=demoJson.getInt("id"); String flag = demoJson.getString("flag"); Toast.makeText(getApplicationContext(), "flag:"+flag+",id:"+id, Toast.LENGTH_LONG).show(); } catch (JSONException e) { e.printStackTrace(); } // Toast.makeText(getApplicationContext(), object.toString(), Toast.LENGTH_LONG).show(); ; Intent intent = new Intent(LoginActivity.this, index.class); startActivity(intent); }else { Intent intent = new Intent(LoginActivity.this, LoginActivity.class); startActivity(intent); Toast.makeText(getApplicationContext(), "登录失败!", Toast.LENGTH_LONG).show(); } // if (Integer.parseInt(object.toString()) != 0) { // // SharedPreferences sharedPreferences= getSharedPreferences("test", Activity.MODE_PRIVATE); // //实例化SharedPreferences.Editor对象 // SharedPreferences.Editor editor = sharedPreferences.edit(); // //用putString的方法保存数据 // editor.putBoolean("USER_ISLOGIN",true); // editor.putString("USER_ID", "123456"); // editor.putString("USER_PWD", "pwd123"); // //提交当前数据 // editor.apply(); // // Intent intent = new Intent(LoginActivity.this, index.class); // startActivity(intent); //// Toast.makeText(getApplicationContext(), "登录成功!", Toast.LENGTH_LONG).show(); // // } else { // Intent intent = new Intent(LoginActivity.this, LoginActivity.class); // startActivity(intent); // Toast.makeText(getApplicationContext(), "登录失败!", Toast.LENGTH_LONG).show(); // } } private boolean isEmailValid(String email) { //TODO: Replace this with your own logic // return email.contains("@"); return email.length() == 11; } private boolean isPasswordValid(String password) { //TODO: Replace this with your own logic return password.length() > 4; } /** * Shows the progress UI and hides the login form. */ @TargetApi(Build.VERSION_CODES.HONEYCOMB_MR2) private void showProgress(final boolean show) { // On Honeycomb MR2 we have the ViewPropertyAnimator APIs, which allow // for very easy animations. If available, use these APIs to fade-in // the progress spinner. if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB_MR2) { int shortAnimTime = getResources().getInteger(android.R.integer.config_shortAnimTime); mLoginFormView.setVisibility(show ? View.GONE : View.VISIBLE); mLoginFormView.animate().setDuration(shortAnimTime).alpha( show ? 0 : 1).setListener(new AnimatorListenerAdapter() { @Override public void onAnimationEnd(Animator animation) { mLoginFormView.setVisibility(show ? View.GONE : View.VISIBLE); } }); mProgressView.setVisibility(show ? View.VISIBLE : View.GONE); mProgressView.animate().setDuration(shortAnimTime).alpha( show ? 1 : 0).setListener(new AnimatorListenerAdapter() { @Override public void onAnimationEnd(Animator animation) { mProgressView.setVisibility(show ? View.VISIBLE : View.GONE); } }); } else { // The ViewPropertyAnimator APIs are not available, so simply show // and hide the relevant UI components. mProgressView.setVisibility(show ? View.VISIBLE : View.GONE); mLoginFormView.setVisibility(show ? View.GONE : View.VISIBLE); } } private void addEmailsToAutoComplete(List<String> emailAddressCollection) { //Create adapter to tell the AutoCompleteTextView what to show in its dropdown list. ArrayAdapter<String> adapter = new ArrayAdapter<>(LoginActivity.this, android.R.layout.simple_dropdown_item_1line, emailAddressCollection); mEmailView.setAdapter(adapter); } private interface ProfileQuery { String[] PROJECTION = { ContactsContract.CommonDataKinds.Email.ADDRESS, ContactsContract.CommonDataKinds.Email.IS_PRIMARY, }; int ADDRESS = 0; int IS_PRIMARY = 1; } /** * Use an AsyncTask to fetch the user's email addresses on a background thread, and update * the email text field with results on the main UI thread. */ class SetupEmailAutoCompleteTask extends AsyncTask<Void, Void, List<String>> { @Override protected List<String> doInBackground(Void... voids) { ArrayList<String> emailAddressCollection = new ArrayList<>(); // Get all emails from the user's contacts and copy them to a list. ContentResolver cr = getContentResolver(); Cursor emailCur = cr.query(ContactsContract.CommonDataKinds.Email.CONTENT_URI, null, null, null, null); while (emailCur.moveToNext()) { String email = emailCur.getString(emailCur.getColumnIndex(ContactsContract .CommonDataKinds.Email.DATA)); emailAddressCollection.add(email); } emailCur.close(); return emailAddressCollection; } @Override protected void onPostExecute(List<String> emailAddressCollection) { addEmailsToAutoComplete(emailAddressCollection); } } /** * Represents an asynchronous login/registration task used to authenticate * the user. */ public class UserLoginTask extends AsyncTask<Void, Void, Boolean> { private final String mEmail; private final String mPassword; UserLoginTask(String email, String password) { mEmail = email; mPassword = password; } @Override protected Boolean doInBackground(Void... params) { // TODO: attempt authentication against a network service. try { // Simulate network access. Thread.sleep(2000); } catch (InterruptedException e) { return false; } for (String credential : DUMMY_CREDENTIALS) { String[] pieces = credential.split(":"); if (pieces[0].equals(mEmail)) { // Account exists, return true if the password matches. return pieces[1].equals(mPassword); } } // TODO: register the new account here. return true; } @Override protected void onPostExecute(final Boolean success) { mAuthTask = null; showProgress(false); if (success) { finish(); } else { mPasswordView.setError(getString(R.string.error_incorrect_password)); mPasswordView.requestFocus(); } } @Override protected void onCancelled() { mAuthTask = null; showProgress(false); } } }
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