本文介绍了Android的接收，并通过wifi连接硬件发送数据的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
其实我想从一个硬件一块数据发送到Android设备。所述硬件装置被连接到被连接到调制解调器的本地无线路由器。Android设备也将连接到同一台路由器通过Wi-Fi。能否请你建议我从哪里可以得到的想法如何建立硬件设备的Android设备之间的通信通过Wi-Fi，请您及时发送和接收数据帮助一些链接或教程任何样品code或链接
解决方案
进口java.io.BufferedInputStream中;
进口的java.io.File;
进口java.io.FileInputStream中;
进口java.io.IOException异常;
进口java.io.OutputStream中;
进口的java.net.Socket;
进口的java.net.UnknownHostException;
进口android.app.Activity;
进口android.os.Bundle;
进口android.view.View;
进口android.widget.Button;
进口android.widget.TextView;
公共类SimpleClientActivity延伸活动{
私人客户端的Socket;
私人的FileInputStream的FileInputStream;
私人的BufferedInputStream的BufferedInputStream;
私人的OutputStream的OutputStream;
私人Button按钮;
私人TextView的文字;
@覆盖
公共无效的onCreate（包savedInstanceState）{
super.onCreate（savedInstanceState）;
的setContentView（R.layout.main）;
按钮=（按钮）findViewById（R.id.button1）; //参照发送按钮
文=（TextView的）findViewById（R.id.textView1）; //参考文本视图
//按钮preSS事件监听器
button.setOnClickListener（新View.OnClickListener（）{
公共无效的onClick（视图v）{
档案文件=新的文件（到/ mnt / SD卡/ input.jpg）; //创建文件的情况下，文件传输或任何数据
尝试 {
客户端=新的Socket（10.0.2.2，4444）;乌拉圭回合的硬件设备// IP地址和端口号
byte []的mybytearray =新的字节[（INT）file.length（）]; //创建一个字节数组到文件
的FileInputStream =新的FileInputStream（文件）;
的BufferedInputStream =新的BufferedInputStream（的FileInputStream）;
bufferedInputStream.read（mybytearray，0，mybytearray.length）; //读取文件
的OutputStream = client.getOutputStream（）;
outputStream.write（mybytearray，0，mybytearray.length）; //写文件以由字节输出流字节
outputStream.flush（）;
bufferedInputStream.close（）;
outputStream.close（）;
client.close（）;
text.setText（文件已发送）;
}赶上（UnknownHostException异常E）{
e.printStackTrace（）;
}赶上（IOException异常E）{
e.printStackTrace（）;
}
}
}）;
}
}
//发送消息u还可以使用下面code
公共静态字符串ip地址; // UR IP
公共静态INT端口号; //端口号
私人客户端的Socket;
私人OutputStreamWriter PrintWriter的;
私人字符串信息;
新主题（新的Runnable（）{
@覆盖
公共无效的run（）{
// TODO自动生成方法存根
尝试 {
客户端=新的Socket（ip地址，端口号）;
PrintWriter的=新OutputStreamWriter（客户端
.getOutputStream（），ISO-8859-1）;
printwriter.write（任何消息）;
printwriter.flush（）;
printwriter.close（）;
client.close（）;
}
赶上（UnknownHostException异常E）{
e.printStackTrace（）;
}赶上（IOException异常E）{
// TODO自动生成的catch块
e.printStackTrace（）;
}
}
}）。开始（）;
Actually I want to send data from a hardware piece to an android device.The hardware device is connected to local wireless router which is connected to modem.Android device will also connected to same router through WI-FI.Can you please suggest some links or tutorial from where i can get idea how to establish communication between hardware device an the android device to send and receive data through WI-FI .Please Help any sample code or links
解决方案
import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.net.Socket;
import java.net.UnknownHostException;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
public class SimpleClientActivity extends Activity {
private Socket client;
private FileInputStream fileInputStream;
private BufferedInputStream bufferedInputStream;
private OutputStream outputStream;
private Button button;
private TextView text;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
button = (Button) findViewById(R.id.button1); //reference to the send button
text = (TextView) findViewById(R.id.textView1); //reference to the text view
//Button press event listener
button.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
File file = new File("/mnt/sdcard/input.jpg"); //create file instance, file to transfer or any data
try {
client = new Socket("10.0.2.2", 4444);// ip address and port number of ur hardware device
byte[] mybytearray = new byte[(int) file.length()]; //create a byte array to file
fileInputStream = new FileInputStream(file);
bufferedInputStream = new BufferedInputStream(fileInputStream);
bufferedInputStream.read(mybytearray, 0, mybytearray.length); //read the file
outputStream = client.getOutputStream();
outputStream.write(mybytearray, 0, mybytearray.length); //write file to the output stream byte by byte
outputStream.flush();
bufferedInputStream.close();
outputStream.close();
client.close();
text.setText("File Sent");
} catch (UnknownHostException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
});
}
}
// to send message u can also use below code
public static String ipAddress;// ur ip
public static int portNumber;// portnumber
private Socket client;
private OutputStreamWriter printwriter;
private String message;
new Thread(new Runnable() {
@Override
public void run() {
// TODO Auto-generated method stub
try {
client = new Socket(ipAddress, portNumber);
printwriter = new OutputStreamWriter(client
.getOutputStream(), "ISO-8859-1");
printwriter.write("any message");
printwriter.flush();
printwriter.close();
client.close();
}
catch (UnknownHostException e) {
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}).start();
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