Android程序开发之网络通信（二）下篇： 使用Http的Post方式与网络交互通信之登录验证
登录界面和注册界面自己配置就好了
转载的那个网站忘记了，我修改了一下button响应的部分代码
我只判断了 用户密码为空和用户密码非空两种情况，实际用的话需配置另一个
MainActivity.java
package com.example.treasure.httpclient;
import java.security.MessageDigest;
import java.util.ArrayList;
import java.util.List;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
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.protocol.HTTP;
import org.apache.http.util.EntityUtils;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.ProgressDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.SharedPreferences.Editor;
import android.net.ConnectivityManager;
import android.net.NetworkInfo.State;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.provider.Settings;
import android.support.annotation.MainThread;
import android.view.View;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.EditText;
import android.widget.Toast;
public class MainActivity extends Activity {
private Button loginBtn;
private Button registerBtn;
private EditText inputUsername;
private EditText inputPassword;
private ProgressDialog mDialog;
private String responseMsg = "";
private static final int REQUEST_TIMEOUT = 5*1000;//设置请求超时10秒钟
private static final int SO_TIMEOUT = 10*1000; //设置等待数据超时时间10秒钟
private static final int LOGIN_OK = 1;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
loginBtn = (Button) findViewById(R.id.btnlogin);
registerBtn = (Button) findViewById(R.id.btnregister);
inputUsername = (EditText) findViewById(R.id.username);
inputPassword = (EditText) findViewById(R.id.passtext);
loginBtn.setOnClickListener(listener);
registerBtn.setOnClickListener(listener);
}
private View.OnClickListener listener=new View.OnClickListener() {
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.btnlogin:
mDialog = new ProgressDialog(MainActivity.this);
mDialog.setTitle("登陆");
mDialog.setMessage("正在登陆服务器，请稍后...");
mDialog.show();
Thread loginThread = new Thread(new LoginThread());
loginThread.start();
break;
case R.id.btnregister:
Intent intent = new Intent();
intent.setClass(MainActivity.this, RegisterActivity.class);
startActivity(intent);
break;
}
}
};
private boolean loginServer(String userName, String password)
{
boolean loginValidate = false;
//使用apache HTTP客户端实现
String urlStr = "http://www.zcstation.pw/html/android/confirm/login.php";
HttpPost request = new HttpPost(urlStr);
//如果传递参数多的话，可以对传递的参数进行封装
List params = new ArrayList();
//添加用户名和密码
params.add(new BasicNameValuePair("userName",userName));
params.add(new BasicNameValuePair("password",password));
try
{
//设置请求参数项
request.setEntity(new UrlEncodedFormEntity(params, HTTP.UTF_8));
HttpClient client = getHttpClient();
//执行请求返回相应
HttpResponse response = client.execute(request);
//判断是否请求成功
if(response.getStatusLine().getStatusCode()==200)
{
loginValidate = true;
//获得响应信息
responseMsg = EntityUtils.toString(response.getEntity(),"UTF-8");
}
}catch(Exception e)
{
e.printStackTrace();
}
return loginValidate;
}
//初始化HttpClient，并设置超时
public HttpClient getHttpClient()
{
BasicHttpParams httpParams = new BasicHttpParams();
HttpConnectionParams.setConnectionTimeout(httpParams, REQUEST_TIMEOUT);
HttpConnectionParams.setSoTimeout(httpParams, SO_TIMEOUT);
HttpClient client = new DefaultHttpClient(httpParams);
return client;
}
//Handler
Handler handler = new Handler()
{
public void handleMessage(Message msg)
{
switch(msg.what)
{
case 0:
mDialog.cancel();
Toast.makeText(getApplicationContext(),responseMsg, Toast.LENGTH_SHORT).show();
inputUsername.setText("");
inputPassword.setText("");
Intent intent = new Intent();
intent.setClass(MainActivity.this, UserActivity.class);
startActivity(intent);
finish();
break;
case 1:
mDialog.cancel();
Toast.makeText(getApplicationContext(),"用户名或密码错误，请重新输入", Toast.LENGTH_SHORT).show();
inputUsername.setText("");
inputPassword.setText("");
break;
case 2:
mDialog.cancel();
Toast.makeText(getApplicationContext(), "URL验证失败", Toast.LENGTH_SHORT).show();
inputUsername.setText("");
inputPassword.setText("");
break;
}
}
};
//LoginThread线程类
class LoginThread implements Runnable
{
@Override
public void run() {
String userName = inputUsername.getText().toString();
String password = inputPassword.getText().toString();
System.out.println("userName="+userName+":password="+password);
//URL合法，但是这一步并不验证密码是否正确
boolean loginValidate = loginServer(userName, password);
System.out.println("----------------------------bool is :"+loginValidate+"----------response:"+responseMsg);
Message msg = handler.obtainMessage();
if(loginValidate)
{
if(responseMsg.equals("用户管理员已经登录成功！"))
{
msg.what = 0;
handler.sendMessage(msg);
}else if(responseMsg.equals("用户宿舍管理员已经登录成功！")) {
msg.what = 0;
handler.sendMessage(msg);
}else if(responseMsg.equals("用户教师已经登录成功！")) {
msg.what = 0;
handler.sendMessage(msg);
}else if(responseMsg.equals("用户学生已经登录成功！")) {
msg.what = 0;
handler.sendMessage(msg);
}else {
msg.what = 1;
handler.sendMessage(msg);
}
}else
{
msg.what = 2;
handler.sendMessage(msg);
}
}
}
}
activity_mian.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context=".MainActivity"
android:orientation="vertical">
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content">
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="treasure\n\n"
android:id="@+id/title"
android:textSize="25sp"
android:gravity="center"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="用户名"
android:layout_marginBottom="25dp"
android:id="@+id/user"
android:layout_toLeftOf="@+id/passtext"
android:layout_below="@id/title"/>
<EditText
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:id="@+id/username"
android:layout_alignBottom="@id/user"
android:layout_toRightOf="@id/user"
android:hint="username"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="密码"
android:id="@+id/pass"
android:layout_alignBottom="@id/passtext"/>
<EditText
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:id="@+id/passtext"
android:layout_below="@id/username"
android:layout_toRightOf="@id/pass"
android:hint="password"/>
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="\n"
android:id="@+id/title1"
android:textSize="25sp"
android:gravity="center"
android:layout_below="@id/passtext"/>
<Button
android:layout_height="wrap_content"
android:layout_width="fill_parent"
android:id="@+id/btnlogin"
android:background="#ff00d9"
android:layout_below="@id/title1"
android:layout_marginBottom="30dp"
android:text="登录"
android:layout_centerHorizontal="true"/>
<Button
android:layout_height="wrap_content"
android:layout_width="fill_parent"
android:id="@+id/btnregister"
android:background="#0011ff"
android:layout_below="@id/btnlogin"
android:layout_marginBottom="30dp"
android:text="注册"
android:layout_centerHorizontal="true"/>
</RelativeLayout>
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="\n\n"
android:textSize="25sp"
android:gravity="center_horizontal"/>
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:id="@+id/con_text"
android:gravity="center_horizontal"/>
</LinearLayout>