AndroidTomcat
package com.example.java4androidmysql;import java.io.IOException;import java.io.UnsupportedEncodingException;import java.util.ArrayList;import java.util.List;import org.apache.http.HttpResponse;import org.apache.http.HttpStatus;import org.apache.http.client.ClientProtocolException;import org.apache.http.client.HttpClient;import org.apache.http.client.entity.UrlEncodedFormEntity;import org.apache.http.client.methods.HttpPost;import org.apache.http.conn.params.ConnManagerParams;import org.apache.http.impl.client.DefaultHttpClient;import org.apache.http.message.BasicNameValuePair;import org.apache.http.params.BasicHttpParams;import org.apache.http.params.HttpConnectionParams;import org.apache.http.params.HttpParams;import org.apache.http.protocol.HTTP;import org.apache.http.util.EntityUtils;import android.os.AsyncTask;import android.os.Bundle;import android.app.Activity;import android.content.Intent;import android.view.Menu;import android.view.View;import android.view.Window;import android.widget.Button;import android.widget.EditText;import android.widget.Toast;public class MainActivity extends Activity { public static final String URL = "http://192.168.2.1:8080/JavaRegisterMysql/login"; public static String res=""; public static String name = ""; public static String code = ""; public static String phone =" "; public static String chose="0"; Button connectButton=null; Button registerButton=null; EditText noteUser=null; EditText notePassword=null; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); requestWindowFeature(Window.FEATURE_NO_TITLE); setContentView(R.layout.activity_main); connectButton=(Button)findViewById(R.id.btnConnect); registerButton=(Button)findViewById(R.id.btnRegister); noteUser=(EditText)findViewById(R.id.editUserName); notePassword=(EditText)findViewById(R.id.editPassword); //////注意类Class DriverManager Statement ResultSet connectButton.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { Toast.makeText(MainActivity.this, "正在登录", Toast.LENGTH_SHORT).show(); name = noteUser.getText().toString().trim(); code = notePassword.getText().toString().trim(); chose="1"; new SubmitAsyncTask().execute(URL); Toast.makeText(MainActivity.this, "res = "+res, Toast.LENGTH_SHORT).show(); if(res.equals("2")){ Toast.makeText(MainActivity.this, "登录成功", Toast.LENGTH_SHORT).show(); //Intent intent=new Intent(); //intent.setClass(MainActivity.this, WriteNote.class); //MainActivity.this.startActivity(intent); }else if(res.equals("1")){ Toast.makeText(MainActivity.this, "用户名或密码错误", Toast.LENGTH_SHORT).show(); }else if(res.equals("3")){ Toast.makeText(MainActivity.this, "注册失败", Toast.LENGTH_SHORT).show(); }else if(res.equals("4")){ Toast.makeText(MainActivity.this, "注册成功", Toast.LENGTH_SHORT).show(); }else if(res.equals("-1")){ Toast.makeText(MainActivity.this, "网络异常", Toast.LENGTH_SHORT).show(); } } }); noteUser.setText("ab"); notePassword.setText("123456"); registerButton.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { Intent intent=new Intent(); intent.setClass(MainActivity.this, Register.class); MainActivity.this.startActivity(intent); } }); } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.main, menu); return true; } }登录后复制
以上为手机主界面函数调用
package com.example.java4androidmysql;import android.app.Activity;import android.os.Bundle;import android.view.View;import android.view.Window;import android.widget.Button;import android.widget.EditText;import android.widget.Toast;public class Register extends Activity{ public static final String URL = "http://192.168.2.1:8080/JavaRegisterMysql/login"; Button backButton=null; Button registerButton=null; EditText user=null; EditText password=null; EditText phone=null; @Override protected void onCreate(Bundle savedInstanceState) { // TODO Auto-generated method stub super.onCreate(savedInstanceState); requestWindowFeature(Window.FEATURE_NO_TITLE); setContentView(R.layout.register); backButton=(Button)findViewById(R.id.btnBack); registerButton=(Button)findViewById(R.id.btnRegister); user=(EditText)findViewById(R.id.editUserName); password=(EditText)findViewById(R.id.editPassword); phone=(EditText)findViewById(R.id.editPhone); //////注意类Class DriverManager Statement ResultSet registerButton.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { MainActivity.name = user.getText().toString().trim(); MainActivity.code = password.getText().toString().trim(); MainActivity.phone = phone.getText().toString().trim(); MainActivity.chose="2"; new SubmitAsyncTask().execute(URL); Toast.makeText(Register.this, "res = "+MainActivity.res, Toast.LENGTH_SHORT).show(); if(MainActivity.res.equals("2")){ Toast.makeText(Register.this, "登录成功", Toast.LENGTH_SHORT).show(); //Intent intent=new Intent(); //intent.setClass(MainActivity.this, WriteNote.class); //MainActivity.this.startActivity(intent); }else if(MainActivity.res.equals("1")){ Toast.makeText(Register.this, "用户名或密码错误", Toast.LENGTH_SHORT).show(); }else if(MainActivity.res.equals("3")){ Toast.makeText(Register.this, "注册失败", Toast.LENGTH_SHORT).show(); }else if(MainActivity.res.equals("4")){ Toast.makeText(Register.this, "注册成功", Toast.LENGTH_SHORT).show(); }else if(MainActivity.res.equals("-1")){ Toast.makeText(Register.this, "网络异常", Toast.LENGTH_SHORT).show(); } } }); user.setText("gjw"); password.setText("123"); phone.setText("13570236302"); }}登录后复制
以上为注册界面
package com.example.java4androidmysql;import java.io.IOException;import java.io.UnsupportedEncodingException;import java.util.ArrayList;import java.util.List;import org.apache.http.HttpResponse;import org.apache.http.HttpStatus;import org.apache.http.client.ClientProtocolException;import org.apache.http.client.HttpClient;import org.apache.http.client.entity.UrlEncodedFormEntity;import org.apache.http.client.methods.HttpPost;import org.apache.http.conn.params.ConnManagerParams;import org.apache.http.impl.client.DefaultHttpClient;import org.apache.http.message.BasicNameValuePair;import org.apache.http.params.BasicHttpParams;import org.apache.http.params.HttpConnectionParams;import org.apache.http.params.HttpParams;import org.apache.http.protocol.HTTP;import org.apache.http.util.EntityUtils;import android.os.AsyncTask;public class SubmitAsyncTask extends AsyncTask{ String info = ""; protected String doInBackground(String... params) { // TODO Auto-generated method stub String url = params[0]; String reps = ""; reps = doPost(url); return reps; } protected void onPostExecute(String result) { // TODO Auto-generated method stub MainActivity.res = result.trim(); super.onPostExecute(result); } /** * 用Post方式跟服务器传递数据 * @param url * @return */private String doPost(String url){ String responseStr = ""; try { //发送post类型请求 HttpPost httpRequest = new HttpPost(url); HttpParams params = new BasicHttpParams(); ConnManagerParams.setTimeout(params, 1000); //从连接池中获取连接的超时时间 HttpConnectionParams.setConnectionTimeout(params, 3000);//通过网络与服务器建立连接的超时时间 HttpConnectionParams.setSoTimeout(params, 5000);//读响应数据的超时时间 httpRequest.setParams(params); //下面开始跟服务器传递数据，使用BasicNameValuePair List paramsList = new ArrayList(); paramsList.add(new BasicNameValuePair("NAME", MainActivity.name)); paramsList.add(new BasicNameValuePair("CODE", MainActivity.code)); paramsList.add(new BasicNameValuePair("PHONE", MainActivity.phone)); paramsList.add(new BasicNameValuePair("CHOSE", MainActivity.chose)); UrlEncodedFormEntity mUrlEncodeFormEntity = new UrlEncodedFormEntity(paramsList, HTTP.UTF_8); httpRequest.setEntity(mUrlEncodeFormEntity); //////////////////////////////////////////////// HttpClient httpClient = new DefaultHttpClient(); HttpResponse httpResponse = httpClient.execute(httpRequest); final int ret = httpResponse.getStatusLine().getStatusCode(); if(ret == HttpStatus.SC_OK){ responseStr = EntityUtils.toString(httpResponse.getEntity(), HTTP.UTF_8); }else{ responseStr = "-1"; } } catch (UnsupportedEncodingException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (ClientProtocolException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } return responseStr; }}登录后复制
以上为接口类，但写得可能有些不对（如返回变量那里是上次调用的），略忙，等再改一下。
登录后复制
登录后复制
以上两段代码为布局文件代码。