Android实现简单的注册登录 POST方式提交数据 基于AndroidStudio开发
16lz
2021-01-23
登录布局页面
<?xml version="1.0" encoding="utf-8"?> 注册布局页面
<?xml version="1.0" encoding="utf-8"?> 登录页面逻辑
package com.example.latitudeandlongitude.latitudeandlongitude; import java.io.InputStream; import java.io.OutputStream; import java.net.HttpURLConnection; import java.net.MalformedURLException; import java.net.URL; import javax.security.auth.login.LoginException; import android.os.Bundle; import android.app.Activity; import android.content.Intent; import android.content.SharedPreferences; import android.content.SharedPreferences.Editor; import android.support.v4.widget.SimpleCursorAdapter.ViewBinder; import android.text.TextUtils; import android.view.Menu; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.CheckBox; import android.widget.EditText; import android.widget.Toast;public class MainActivity extends Activity implements OnClickListener{ private EditText id; private EditText password; private Button login; private Button register; public CheckBox cb; private String username; private String pwd; private SharedPreferences sp; private String result; private int RequestCode = 1; @Override protected void onCreate(Bundle savedInstanceState){ super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); id = (EditText) findViewById(R.id.id); password = (EditText) findViewById(R.id.password); login = (Button) findViewById(R.id.login); //register.setOnClickListener(this); login.setOnClickListener(this); register = (Button) findViewById(R.id.register); register.setOnClickListener(this); cb = (CheckBox) findViewById(R.id.check); sp = getSharedPreferences("config", 0); //将数据显示到UI控件 //把config.xml文件中的数据取出来显示到EditText控件中 //如果没找到key键对应的值，会返回第二个默认的值 String username = sp.getString("username", ""); String password = sp.getString("password", ""); id.setText(username); this.password.setText(password); } @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); if(requestCode==1&&resultCode==2){ id.setText(data.getStringExtra("id")); password.setText(data.getStringExtra("password")); } } @Override public void onClick(View v) { switch (v.getId()) { case R.id.login: username = id.getText().toString().trim(); pwd = password.getText().toString().trim(); if(TextUtils.isEmpty(username)||TextUtils.isEmpty(pwd)){ Toast.makeText(this, "账号或密码不能为空",Toast.LENGTH_SHORT).show(); }else{ new Thread(){ public void run(){ try { //设置路径 String path="http://192.168.1.111:8080/MyWebsite/androidlogin.do"; //创建URL对象 URL url=new URL(path); //创建一个HttpURLConnection对象 HttpURLConnection conn=(HttpURLConnection) url.openConnection(); //设置请求方法 conn.setRequestMethod("POST"); //设置请求超时时间 conn.setReadTimeout(5000); conn.setConnectTimeout(5000); //Post方式不能设置缓存，需要手动设置 conn.setUseCaches(false); //设置我们的请求数据 String data="id="+username+"&password="+pwd; conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");//使用的是表单请求类型 conn.setRequestProperty("Content-Length", data.length()+""); conn.setDoOutput(true); conn.getOutputStream().write(data.getBytes());// //连接// conn.connect();////获取一个输出流//OutputStream out=conn.getOutputStream();//out.write(data.getBytes()); //获取服务器返回的状态吗 int code=conn.getResponseCode(); if(code==200){ //获取服务器返回的输入流对象 InputStream in= conn.getInputStream(); result = StringTools.readStream(in); //更新UI runOnUiThread(new Runnable() { @Override public void run() { if(result.equals("success")) // TODO Auto-generated method stub Toast.makeText(getApplicationContext(), "登录成功", Toast.LENGTH_SHORT).show(); Intent intent = new Intent(); intent.setClassName("com.example.latitudeandlongitude.latitudeandlongitude", "com.example.latitudeandlongitude.latitudeandlongitude.LocationActivity"); startActivity(intent); } }); } } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } }; }.start(); if(cb.isChecked()){//判断是否勾选 //使用sharePreferences区保存数据 拿到sp实例 //参数： name生成xml文件 //mode 模式 //获取sp的编辑器 Editor editor=sp.edit(); //存储用户输入的数据 editor.putString("username", username); editor.putString("password", pwd); //提交editor editor.commit(); } } break; case R.id.register: //跳转到登录页面 Intent intent=new Intent(this,RegisterActivity.class); startActivityForResult(intent,RequestCode); break; default: break; } }}
注册页面逻辑
package com.example.latitudeandlongitude.latitudeandlongitude;import android.app.Activity;import android.view.View;import java.io.InputStream;import java.net.HttpURLConnection;import java.net.URL;import java.net.URLEncoder;import android.content.Intent;import android.os.Bundle;import android.widget.Button;import android.widget.EditText;import android.widget.Toast;/** * Created by zhangwenhiu on 2018/10/28. */public class RegisterActivity extends Activity implements View.OnClickListener{ private Button register; private EditText id; private EditText pwd_1; private EditText pwd_2; private EditText emails; private String result; private String username; private String pwd1; private String email; private String pwd2; private int ResultCode=2; protected void onCreate(Bundle savedInstanceState){ super.onCreate(savedInstanceState); setContentView(R.layout.register); register = (Button) findViewById(R.id.register_do); register.setOnClickListener(this); id = (EditText) findViewById(R.id.id_edit); pwd_1 = (EditText) findViewById(R.id.password_edit); pwd_2 = (EditText) findViewById(R.id.password_edit_1); emails = (EditText) findViewById(R.id.email_edit); } @Override public void onClick(final View v) { new Thread(){public void run() { switch (v.getId()) { case R.id.register_do: username = id.getText().toString().trim(); email = emails.getText().toString().trim(); pwd1 = pwd_1.getText().toString().trim(); pwd2 = pwd_2.getText().toString().trim(); //System.out.println("email:"+email); if(!pwd1.equals(pwd2)){ runOnUiThread(new Runnable() { @Override public void run() { Toast.makeText(getApplicationContext(), "两次输入密码不一致，请重新输入！", Toast.LENGTH_SHORT).show(); } }); }else { try { //设置路径 String path="http://192.168.1.111:8080/MyWebsite/androidregister.do"; //?id="+username+"&password=" + pwd1+ "&email=" +email+" //创建URL对象 URL url=new URL(path); //创建一个HttpURLconnection对象 HttpURLConnection conn =(HttpURLConnection) url.openConnection(); //设置请求方法 conn.setRequestMethod("POST"); //设置请求超时时间 conn.setReadTimeout(5000); //conn.setConnectTimeout(5000); //Post方式不能设置缓存，需要手动设置 //conn.setUseCaches(false); //准备要发送的数据 String data ="id="+URLEncoder.encode(username,"utf-8")+"&password="+URLEncoder.encode(pwd1,"utf-8")+"&email="+URLEncoder.encode(email,"utf-8"); //String data ="id="+ username +"&password="+ pwd1 +"&email="+ email+""; conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");//使用的是表单请求类型 conn.setRequestProperty("Content-Length", data.length()+""); conn.setDoInput(true); conn.setDoOutput(true); //连接 // conn.connect(); //获得返回的状态码 conn.getOutputStream().write(data.getBytes()); int code=conn.getResponseCode(); if(code==200){ //获得一个文件的输入流 InputStream inputStream= conn.getInputStream(); result = StringTools.readStream(inputStream); //更新UI showToast(result); } } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } } break; default: break; } };}.start(); } public void showToast(final String content){ runOnUiThread(new Runnable() { @Override public void run() { // TODO Auto-generated method stub if(result.equals("success")){ Toast.makeText(getApplicationContext(), "注册成功", Toast.LENGTH_SHORT).show(); Intent intent=new Intent(); intent.putExtra("id", username); intent.putExtra("password", pwd1); setResult(ResultCode, intent); finish(); } } }); }}运行截图
登录注册demohttps://download.csdn.net/download/xietete/10750331
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