iSharkFly-Docs
/
java-tutorials
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Rahul/socket/read/pr4 (#6575) 

* Making examples simple

* Changing variable names

* Modificatons in naming

* Review changes
This commit is contained in:
rahusriv 2019-03-23 05:17:23 +05:30 committed by maibin
parent 4151e55d3b
commit cc73a3051b
2 changed files with 35 additions and 45 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
core-java-networking/src/main/java/com/baeldung/socket/read/Client.java
View File

@ -1,35 +1,27 @@
package com.baeldung.socket.read;
import java.net.*;
import java.nio.charset.StandardCharsets;
import java.io.*;
public class Client {
//Initialize socket, input and output stream
private Socket socket = null;
private DataInputStream in = null;
private DataOutputStream out = null;
public void runClient(String ip, int port) {
try {
socket = new Socket(ip, port);
Socket socket = new Socket(ip, port);
System.out.println("Connected to server ...");
in = new DataInputStream(System.in);
out = new DataOutputStream(socket.getOutputStream());
} catch(Exception e) {
e.printStackTrace();
}
DataInputStream in = new DataInputStream(System.in);
DataOutputStream out = new DataOutputStream(socket.getOutputStream());
char type = 's'; // s for string
int length = 29;
String data = "This is a string of length 29";
byte[] dataInBytes = data.getBytes();
byte[] dataInBytes = data.getBytes(StandardCharsets.UTF_8);
//Sending data in TLV format
try {
out.writeChar(type);
out.writeInt(length);
out.write(dataInBytes);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}

22
core-java-networking/src/main/java/com/baeldung/socket/read/Server.java
View File

@ -1,48 +1,46 @@
package com.baeldung.socket.read;
import java.net.*;
import java.nio.charset.StandardCharsets;
import java.io.*;
public class Server {
//Socket and input stream
private Socket socket = null;
private ServerSocket server = null;
private DataInputStream in = null;
public void runServer(int port) {
//Start the server and wait for connection
try {
server = new ServerSocket(port);
ServerSocket server = new ServerSocket(port);
System.out.println("Server Started. Waiting for connection ...");
socket = server.accept();
Socket socket = server.accept();
System.out.println("Got connection from client.");
//Get input stream from socket variable and convert the same to DataInputStream
in = new DataInputStream(new BufferedInputStream(socket.getInputStream()));
DataInputStream in = new DataInputStream(new BufferedInputStream(socket.getInputStream()));
//Read type and length of data
char dataType = in.readChar();
int length = in.readInt();
System.out.println("Type : "+dataType);
System.out.println("Lenght :"+length);
if(dataType == 's') {
//Read String data in bytes
byte[] messageByte = new byte[length];
boolean end = false;
String dataString = "";
StringBuilder dataString = new StringBuilder(length);
int totalBytesRead = 0;
//We need to run while loop, to read all data in that stream
while(!end) {
int currentBytesRead = in.read(messageByte);
totalBytesRead = currentBytesRead + totalBytesRead;
if(totalBytesRead <= length) {
dataString += new String(messageByte,0,currentBytesRead);
dataString.append(new String(messageByte,0,currentBytesRead,StandardCharsets.UTF_8));
} else {
dataString += new String(messageByte,0,length - totalBytesRead + currentBytesRead);
dataString.append(new String(messageByte,0,length - totalBytesRead + currentBytesRead,StandardCharsets.UTF_8));
}
if(dataString.length()>=length) {
end = true;
}
}
System.out.println("Read "+length+" bytes of message from client. Message = "+dataString);;
System.out.println("Read "+length+" bytes of message from client. Message = "+dataString);
}
} catch (Exception e) {
e.printStackTrace();
}