Всем добрый день!Пишу приложение которое пересылает файлы с клиента на сервер.С одним файлом все работает отлично,но когда отправляются несколько файлов,генерируется exception
Exception in thread "main" java.lang.NegativeArraySizeException
at double2.code.code1.Receiver.receiveFile(Receiver.java:45)
at double2.code.code1.Receiver.main(Receiver.java:18)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:144)
Код сервера:
public class Sender {
static ServerSocket server;
static final int PORT = 6666;
static ArrayList<Socket> sockets;
static String basePath = "C:\\as\\server";
public static void main(String[] args) throws IOException {
server =new ServerSocket(PORT);
sockets = new ArrayList<Socket>();
String fileName ="111.jpg";
ArrayList<String>locations = new ArrayList<String>();
locations.add(fileName);
locations.add("1.jpg");
Socket socket = server.accept();
Sender.send(socket,locations);
socket.close();
}
static void sendFileNames(Socket socket,ArrayList<String>fileNames) throws IOException {
DataOutputStream dataOutputStream = new DataOutputStream(socket.getOutputStream());
dataOutputStream.writeInt(fileNames.size());//отправляем размер
for (String name:fileNames){
dataOutputStream.writeUTF(name);
}
}
public static void send(Socket socket,ArrayList<String> fileNames) throws IOException {
FileInputStream fileInputStream = null;
BufferedInputStream bufferedInputStream = null;
DataOutputStream outputStream = null;
try {
System.out.println("Waiting for receiver...");
try {
System.out.println("Accepted connection : " + socket);
sendFileNames(socket,fileNames);
for(String fileName:fileNames) {
File file = new File(basePath + "\\"+fileName);
byte[] byteArray = new byte[(int) file.length()];
System.out.println("lol");
outputStream = new DataOutputStream(socket.getOutputStream());
outputStream.writeLong(file.length());//TODO
System.out.println("lol");
fileInputStream = new FileInputStream(file);
bufferedInputStream = new BufferedInputStream(fileInputStream);
bufferedInputStream.read(byteArray, 0, byteArray.length); // copied file into byteArray
System.out.println("Sending " + fileName + "( size: " + byteArray.length + " bytes)");
outputStream.write(byteArray, 0, byteArray.length);
outputStream.flush(); //flushing socket
System.out.println("Done.");
}
}
finally {
if (bufferedInputStream != null) bufferedInputStream.close();
if (outputStream != null) bufferedInputStream.close();
if (socket!=null) socket.close();
}
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
finally {
if (server != null) server.close();
}
}
}
код клиента:
public class Receiver {
static Socket socket;
static final int PORT = 6666;
static final String IP = "127.0.0.1";
static DataInputStream dim;
static String basePath = "C:\\as\\client";
public static void main (String [] args ) throws IOException {
socket = new Socket(IP,PORT);
receiveFile();
System.out.println("yeeee");
}
static ArrayList<String>readFileNames() throws IOException {
ArrayList<String>res = new ArrayList<String>();
DataInputStream din = new DataInputStream(socket.getInputStream());
int lenght = din.readInt();
for(int i = 0;i<lenght;i++){
String name = din.readUTF();
res.add(name);
}
return res;
}
public static void receiveFile() throws IOException {
int bytesRead = 0;
int current = 0;
FileOutputStream fileOutputStream = null;
BufferedOutputStream bufferedOutputStream = null;
try {
ArrayList<String> locations = readFileNames();
for (String location:locations) {
dim = new DataInputStream(socket.getInputStream());
long res = dim.readLong();
System.out.println("res "+res);
byte[] byteArray = new byte[(int) res + 1];
System.out.println("sizze" + res);
System.out.println("Please wait downloading file");
DataInputStream inputStream = new DataInputStream(socket.getInputStream());
File f = new File(basePath + "\\" + location);
fileOutputStream = new FileOutputStream(f);
System.out.println(f.createNewFile());
//TODO !!!!!!!!!!!
bufferedOutputStream = new BufferedOutputStream(fileOutputStream);
bytesRead = inputStream.read(byteArray, 0, byteArray.length); //copying file from socket to byteArray
current = bytesRead;
System.out.println("hah");
do {
bytesRead = inputStream.read(byteArray, current, (byteArray.length - current));
System.out.println(current);
if (current == res)
break;
if (bytesRead >= 0) current += bytesRead;
} while (bytesRead > -1);
bufferedOutputStream.flush();
}
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} finally {
if (fileOutputStream != null) fileOutputStream.close();
if (bufferedOutputStream != null) bufferedOutputStream.close();
}
}
}
Логированием увидел что во 2 раз передается какое-то левое значение размера файла,и скорее всего из-за этого формируется ошибка.Подскажите пожалуйста,как мне решить эту проблему.
Простой
Простой
