我试图通过客户端的ObjectOutputStream类传递对象，并通过ObjectInputStream接收对象，问题是java.net.SocketException：连接重置错误出现，消除了客户端和服务器之间的对象过去，问题是它可以解决，但我不知道会是什么错误。
在服务器上有客户端代码之前，我可以正常工作，反之亦然，但是现在，我更改了代码的这些部分后，就无法正常工作了。这些错误在模块服务器上的这些行中跳转：
ObjectInputStream ois = new ObjectInputStream(socket.getInputStream());
Computer c = (Computer) ois.readObject();
客户
private void startClient() {
DataInputStream in = null;
DataOutputStream out = null;
Socket socket = null;
try {
socket = new Socket(ip, port);
in = new DataInputStream(socket.getInputStream());
out = new DataOutputStream(socket.getOutputStream());
//MANDAMOS EL NUMERO EN RANGO HACIA LOS SERVIDORES
out.writeInt(n);
out.flush();
//LEEMOS EL TIEMPO ENVIADO POR EL SERVIDOR
tiempo = in.readLong();
System.out.println(tiempo);
ObjectInputStream ois = new ObjectInputStream(socket.getInputStream());
Computer c = (Computer) ois.readObject();
synchronized (main) {
main.add(c);
}
ois.close();
} catch (IOException ex) {
Logger.getLogger(Client.class.getName()).log(Level.SEVERE, null, ex);
} catch (ClassNotFoundException ex) {
Logger.getLogger(Client.class.getName()).log(Level.SEVERE, null, ex);
} finally {
try {
out.close();
in.close();
socket.close();
} catch (IOException ex) {
Logger.getLogger(Client.class.getName()).log(Level.SEVERE, null, ex);
}
}
}
服务器
private void startServer(){
DataOutputStream out = null;
DataInputStream in = null;
ServerSocket ss = null;
try {
Socket socket = null;
ss = new ServerSocket(port);
System.out.println("Esperando conexion");
socket = ss.accept();
in = new DataInputStream(socket.getInputStream());
int n = in.readInt();
long time = encontrarPrimos(n);
out = new DataOutputStream(socket.getOutputStream());
out.writeLong(time);
out.flush();
ObjectOutputStream oos = new ObjectOutputStream(socket.getOutputStream());
Computer c = new Computer(id, Computer.getLocalIp(), time, Computer.getUserDomainSO());
oos.writeObject(c);
oos.close();
in.close();
out.close();
socket.close();
} catch (IOException ex) {
Logger.getLogger(Server.class.getName()).log(Level.SEVERE, null, ex);
} finally {
}
}
计算机类
public class Computer implements Serializable{
private int id;
private String ip;
private long time;
private String userDomain;
public Computer(int id, String ip, long time, String userDomain) {
this.id = id;
this.ip = ip;
this.time = time;
this.userDomain = userDomain;
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getIp() {
return ip;
}
public void setIp(String ip) {
this.ip = ip;
}
public long getTime() {
return time;
}
public void setTime(long time) {
this.time = time;
}
public String getUserDomain() {
return userDomain;
}
public void setUserDomain(String userDomain) {
this.userDomain = userDomain;
}
@Override
public int hashCode() {
int hash = 7;
hash = 59 * hash + this.id;
hash = 59 * hash + Objects.hashCode(this.ip);
hash = 59 * hash + (int) (this.time ^ (this.time >>> 32));
hash = 59 * hash + Objects.hashCode(this.userDomain);
return hash;
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj == null) {
return false;
}
if (getClass() != obj.getClass()) {
return false;
}
final Computer other = (Computer) obj;
if (this.id != other.id) {
return false;
}
if (this.time != other.time) {
return false;
}
if (!Objects.equals(this.ip, other.ip)) {
return false;
}
if (!Objects.equals(this.userDomain, other.userDomain)) {
return false;
}
return true;
}
@Override
public String toString() {
return "Computer{" + "id=" + id + ", ip=" + ip + ", time=" + time + ", userDomain=" + userDomain + '}';
}
public static String getLocalIp(){
try {
InetAddress localhost = InetAddress.getLocalHost();
return localhost.getHostAddress().trim();
} catch (UnknownHostException ex) {
Logger.getLogger(Computer.class.getName()).log(Level.SEVERE, null, ex);
}
return null;
}
public static String getUserDomainSO() {
String operatingSystem = System.getProperty("os.name");
if ("Linux".equals(operatingSystem) || "Mac OS X".equals(operatingSystem)) {
return System.getProperty("user.name");
} else if ("Windows".equals(operatingSystem)) {
return System.getenv("USERDOMAIN");
} else {
throw new RuntimeException("Unsupported operating system.");
}
}
}
下一个错误：
java.net.SocketException: Connection reset
at java.net.SocketInputStream.read(SocketInputStream.java:210)
at java.net.SocketInputStream.read(SocketInputStream.java:141)
at java.io.ObjectInputStream$PeekInputStream.read(ObjectInputStream.java:2663)
at java.io.ObjectInputStream$PeekInputStream.readFully(ObjectInputStream.java:2679)
at java.io.ObjectInputStream$BlockDataInputStream.readShort(ObjectInputStream.java:3156)
at java.io.ObjectInputStream.readStreamHeader(ObjectInputStream.java:862)
at java.io.ObjectInputStream.<init>(ObjectInputStream.java:358)
at Client.startClient(Client.java:71)
at Client.run(Client.java:44)
at java.lang.Thread.run(Thread.java:748)
答案 0 :(得分：2)
我对您的客户端代码进行了少量修改，并且可以正常工作。我不在这里使用计算机对象。相反，我使用了String cast。
private void startClient() {
DataInputStream in = null;
DataOutputStream out = null;
Socket socket = null;
try {
InetAddress host = InetAddress.getLocalHost();
socket = new Socket(host.getHostName(), 9876);
in = new DataInputStream(socket.getInputStream());
out = new DataOutputStream(socket.getOutputStream());
//MANDAMOS EL NUMERO EN RANGO HACIA LOS SERVIDORES
out.writeInt(1000);
out.flush();
//LEEMOS EL TIEMPO ENVIADO POR EL SERVIDOR
long tiempo = in.readLong();
System.out.println(tiempo);
String str;
ObjectInputStream ois = new ObjectInputStream(socket.getInputStream());
if ((str = (String) ois.readObject()) != null) {
System.out.println(str);
}
ois.close();
} catch (IOException ex) {
ex.printStackTrace();
} catch (ClassNotFoundException ex) {
ex.printStackTrace();
} finally {
try {
out.close();
in.close();
socket.close();
} catch (IOException ex) {
ex.printStackTrace();
}
}
}
答案 1 :(得分：-1)
在测试了不同的解决方案之后，主要的错误不是代码，而是安装在运行客户端的计算机上的JVM，因此解决方案是使用以前安装的相同版本从0开始安装Java。
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