Android实现登陆注册连接数据库操作完整代码

package org.cst.activity; import org.cst.service.User; import org.cst.service.UserService; import android.app.Activity; import android.content.Intent; import android.os.Bundle; import android.util.Log; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.EditText; import android.widget.RadioButton; import android.widget.Toast; public class RegisterActivity extends Activity { EditText username; EditText password; EditText confirmpwd; RadioButton btn_nan; Button register; User user; String usex; protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.register); initViews(); } // public void onCheckedChanged(RadioGroup group, int checkedId) { // Toast.makeText(RegisterActivity.this, "qq", Toast.LENGTH_LONG).show(); // switch (checkedId) { // case R.id.boy: // usex = "男"; // break; // case R.id.gril: // usex = "女"; // break; // } // } private void initViews() { username = (EditText) findViewById(R.id.usernameRegister); password = (EditText) findViewById(R.id.passwordRegister); confirmpwd = (EditText) findViewById(R.id.confirmpassword); btn_nan = (RadioButton) findViewById(R.id.boy); btn_nan.setChecked(true); register = (Button) findViewById(R.id.Register); register.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { if (null != username && null != password) { String name = username.getText().toString(); String pass = password.getText().toString(); String conpass = confirmpwd.getText().toString(); if ("".equals(name.trim()) && "".equals(pass.trim()) || pass.equals(conpass) == false) { Log.i("TAG", "注册失败"); Toast.makeText(RegisterActivity.this, "请输入用户名或密码或密码不一致", Toast.LENGTH_LONG).show(); return; } UserService userService = new UserService(RegisterActivity.this); if(btn_nan.isChecked()) { usex = "男"; } else { usex="女"; } user = new User(name, pass, usex); // Toast.makeText(RegisterActivity.this, usex, // Toast.LENGTH_LONG).show(); boolean flag = userService.register(user); if (flag) { Log.i("TAG", "注册成功"); Intent i = new Intent(); i.setClass(RegisterActivity.this, DBActivity.class); startActivity(i); } else { Log.i("TAG", "注册失败"); Toast.makeText(RegisterActivity.this, "用户名已存在", Toast.LENGTH_LONG).show(); } } } }); } }