ANDROID+PHP 交互

环境配置:

windows:

Wamp下载地址:www.wampserver.com

 

https://github.com/teddysun/lamp

linux:

apt-get -y install wget screen git

git clone https://github.com/teddysun/lamp.git

cd lamp

chmod 755 *.sh

screen -S lamp

./lamp.sh

 

 

2, php后台源码

conn.php

 

$dbhost="120.78.121.226:3306";

$dbuser="root";

$dbpassword="tripod";

$dbname="test_db";

//最新的mysql需要用mysqli开关查询接口

$conn=mysqli_connect($dbhost,$dbuser,$dbpassword) or die("connect error");

 

$db_selected = mysqli_select_db($conn,"$dbname") or die("Could not select hugf_db
");

 

//设置字符编码,方便中文显示

mysqli_query("set names 'UTF-8'");

?>

 

index.php (查询用户名和密码用于登录)

include("conn.php");

 

//获取提交用户名

$username=str_replace("","",$_POST['name']);

//数据库查询语句,查询指定用户名数据

$sql="select * from login where name='$username'";

$query=mysqli_query($conn,$sql);

$rows = mysqli_fetch_array($query);

 

if(is_array($rows)){

      

       if($_POST['pwd']==$rows['password']){

              //如果密码和提交密码一致反回验证成功信息

              echo "login succeed";

       }else{

              echo "error";

       }

}

mysqli_close($conn);

?>

index.php (返回JSON数据,把数据库的所用用户名和密码用JSON的形式返回查询终端)

 

include("conn.php");

 

 

$username=str_replace("","",$_POST['name']);

//查询数据库表login 把回所有的表数据

$sql="select * from login ";

$query=mysqli_query($conn,$sql);

 

//新建一个数据

$jarr = array();

while($rows = mysqli_fetch_array($query)){

       //把数据库信息放入数组

       array_push($jarr,$rows);

      

}

//把数据转换成JSON信息并返回终端

echo $str=json_encode($jarr);

 

mysqli_close($conn);

?>

android终端代码:

 

权限:

<uses-permission android:name="android.permission.INTERNET" />

<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />

 

 

LoginActivity.java

import org.apache.http.impl.client.DefaultHttpClient;

import org.apache.http.message.BasicNameValuePair;

import org.apache.http.client.methods.HttpPost;

import org.apache.http.HttpResponse;

import org.apache.http.client.entity.UrlEncodedFormEntity;

import org.apache.http.util.EntityUtils;

 

    class ThreadPhp extends Thread {

        @Override

        public void run() {

            Log.i("huguifeng","huguifeng--------2-------------LoginHandler");

            String userName = "huguifeng";

            String password = "hugf123";

            //连接到服务器的地址,我监听的是8080端口

            String connectURL="http://120.78.121.226/";

  //填入用户名密码和连接地址

            boolean isLoginSucceed = gotoLogin(userName, password,connectURL);

            //判断返回值是否为true,若是的话就跳到主页。

            Log.i("huguifeng","huguifeng-----------------isLoginSucceed="+isLoginSucceed);

            if(isLoginSucceed){

               // Toast.makeText(FullscreenActivity.this, "登入成功", Toast.LENGTH_LONG).show();

            }else{

               // Toast.makeText(FullscreenActivity.this, "登入错误", Toast.LENGTH_LONG).show();

            }

     }

    }

private boolean gotoLogin(String userName, String password,String connectUrl) {

        String result = null; //用来取得返回的String;

        boolean isLoginSucceed = false;

 

//发送post请求

        HttpPost httpRequest = new HttpPost(connectUrl);

//Post运作传送变数必须用NameValuePair[]阵列储存

        List params = new ArrayList();

        params.add(new BasicNameValuePair("name",userName));

        params.add(new BasicNameValuePair("pwd",password));

        try{

            //发出HTTP请求

            httpRequest.setEntity(new UrlEncodedFormEntity(params, "UTF-8"));

            Log.i("huguifeng","huguifeng-------------httpRequest");

            //取得HTTP response

            HttpResponse httpResponse=new DefaultHttpClient().execute(httpRequest);

            //若状态码为200则请求成功,取到返回数据

Log.i("huguifeng","huguifeng-------------httpResponse.getStatusLine().getStatusCode()="+httpResponse.getStatusLine().getStatusCode());

            if(httpResponse.getStatusLine().getStatusCode()==200){

                    //取出字符串

                result= EntityUtils.toString(httpResponse.getEntity());

                Log.i("huguifeng","huguifeng-------------result="+result);

                //system.out.println("result= "+result);

            }

        }catch(Exception e){

            Log.i("huguifeng","huguifeng-------------e="+e.toString());

            e.printStackTrace();

        }

//判断返回的数据是否为php中成功登入是输出的

        if(result!= null && result.equals("login succeed")){

            isLoginSucceed = true;

        }

        return isLoginSucceed;

    }

以上代码即可验证验登录功能,又可以直接查询返回的JSON数组信息。

 

在app module模块的build.gradle下面需要添加:

useLibrary 'org.apache.http.legacy'

因为android最新版本不支持apache

这个功能本来想在本机实现的,用模拟器,发现有如下问题:

1.模拟器的IP地址和本机地址是一样的,

2.我的是UBUNTU系统装了WINDOWS虚拟机, 模拟器在虚拟机,新的API版本不支持。老版本又慢得出奇。

希望有朋友遇到可以避免同样的问题。

 

 

 

 

 

 

 

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