一个简单ObjectInputStream ObjectOutputStream的问题

[fxp007]

下面这段代码总是调不通，请教各位。多谢
Client：

import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.net.Socket;
import java.util.logging.Level;
import java.util.logging.Logger;

public class Main {

    public static void main(String[] args) {
        try {
            Socket socket = new Socket("localhost", 2222);
            ObjectOutputStream oos = new ObjectOutputStream(socket.getOutputStream());
            ObjectInputStream ois = new ObjectInputStream(socket.getInputStream());

            Request req = new Request("login");
            req.setData("UserName", "名字");
            req.setData("Password", "密码");

            oos.writeObject(req);
            oos.flush();
        } catch (IOException ex) {
            Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
        }
    }
}

import java.io.Serializable;
import java.util.Properties;

public class Request implements Serializable {

    private String type;//请求类型
    private Properties parameters;//请求所带的参数
    private static final long serialVersionUID = 800120791203985L;

    public Request(String type) {
        parameters = new Properties();
        this.type = type;
    }

    public void setData(String key, String value) {
        this.parameters.setProperty(key, value);
    }

    public String getData(String key) {
        return this.parameters.getProperty(key);
    }

    public Properties getAllParameters() {
        return this.parameters;
    }

    public String getType() {
        return type;
    }
}

Server：

import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.logging.Level;
import java.util.logging.Logger;

public class Main {

    public static void main(String[] args) {
        try {
            ServerSocket socket = new ServerSocket(2222);
            Socket sock = socket.accept();
            ObjectInputStream ois = new ObjectInputStream(sock.getInputStream());
            ObjectOutputStream oos = new ObjectOutputStream(sock.getOutputStream());

            Request req;
            req=(Request)ois.readObject();			//#1

        } catch (IOException ex) {
            Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);		//#2
        } catch (ClassNotFoundException ex) {
            Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
        } 
    }
}

import java.io.Serializable;
import java.util.Properties;

public class Request implements Serializable {
    private String type;//请求类型
    private Properties parameters;//请求所带的参数

    public Request(String type) {
        parameters = new Properties();
        this.type = type;
    }

    public void setData(String key, String value) {
        this.parameters.setProperty(key, value);
    }

    public String getData(String key) {
        return this.parameters.getProperty(key);
    }

    public Properties getAllParameters() {
        return this.parameters;
    }

    public String getType() {
        return type;
    }
}

连接的时候Server端#1处会抛出错误到#2处。
请问是什么原因？谢谢了

[fxp007]

搞定了。是Server和Client的Request类不在同一个名称的包里，在两边都单独建一个一样名称的包，把Request放进去就好了。谢谢楼上的两位。不过我还想知道这是为什么？

[fxp007]

补充下：
报的错误如下：
SEVERE: null
java.net.SocketException: Connection reset
at java.net.SocketInputStream.read(SocketInputStream.java:168)
at java.net.SocketInputStream.read(SocketInputStream.java:182)
at java.io.ObjectInputStream$PeekInputStream.peek(ObjectInputStream.java:2247)
at java.io.ObjectInputStream$BlockDataInputStream.peek(ObjectInputStream.java:2540)
at java.io.ObjectInputStream$BlockDataInputStream.peekByte(ObjectInputStream.java:2550)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1297)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351)
at javaapplication1.Main.main(Main.java:29)

[jasonwhy]

你在client端定义了private static final long serialVersionUID = 800120791203985L;
在服务端也要定义private static final long serialVersionUID = 800120791203985L;
server端的 req成员对象在main方法外定义，自己添加打印语句测试通过
显示结果:
Request@16caf43
{UserName=name, Password=password}

import java.io.Serializable;
import java.util.Properties;

public class Request implements Serializable {
    /**
	 * 
	 */
	private static final long serialVersionUID = 800120791203985L;
	private String type;
    private Properties parameters;
    public Request(String type) {
        parameters = new Properties();
        this.type = type;
    }

    public void setData(String key, String value) {
        this.parameters.setProperty(key, value);
    }

    public String getData(String key) {
        return this.parameters.getProperty(key);
    }

    public Properties getAllParameters() {
        return this.parameters;
    }

    public String getType() {
        return type;
    }
}

import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.logging.Level;
import java.util.logging.Logger;

public class Main{

    private static Request req;   //req 定义为成员变量

	public static void main(String[] args) {
        try {
            ServerSocket socket = new ServerSocket(2222);
            Socket sock = socket.accept();
            ObjectInputStream ois = new ObjectInputStream(sock.getInputStream());
            //ObjectOutputStream oos = new ObjectOutputStream(sock.getOutputStream());

           
			req=(Request)ois.readObject();            //#1
			System.out.println(req);         
			System.out.println(req.getAllParameters());



        } catch (IOException ex) {
            Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);        //#2
        } catch (ClassNotFoundException ex) {
            Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
        } 
    }
}

[panxuan]

楼上的可以尝试。

[fxp007]

还是不行...我把两边的serialVersionUID改为1L了，但还是报错。不过是从ClassNotFoundException中报错了。