UDP-based transmission of Android socket

Steps for creating a receiver:

1. Create an initramsocket object and specify the listening port number.

Datagramsocket socket = new datagramsocket (4567 );

2. Create a byte array for receiving

Byte data [] = new byte [1024];

3. Create an empty initrampackage object

Required rampackage package = new required rampackage (data, data. Length );

4. Use the receive method to receive the data sent by the sender, which is also a blocking method.

Socket. Receive (Package );

5. Get the sent data

New String (package. getdata (), package. getoffset (), package. getlength ());

 

Sender creation steps:

1. Create a initramsocket object

Datagramsocket socket = new datagramsocket (4567 );

2. Create an inetaddress, equivalent to the address

Inetaddress serveraddress = inetaddress. getbyname ("the IP address to be sent ");

3. This is to send a random data

String STR = "hello ";

4. Convert to byte type

Byte data [] = Str. getbytes ();

5. Create an initrampacket object and specify the address to which the packet is sent to the network and the port number.

Datagrampacket package = new datagrampacket (data, data. length, serveraddress, 4567 );

6. Call the send method of the initramsocket object to send data.

Socket. Send (Package );