通过HTTP序列化正确的方式来转换对象。 [英] Serializing over HTTP correct way to convert object.

问题描述

我正在尝试序列化一个对象并通过HTTP发送它。我正在使用一些教程，因为大多数处理套接字，但我不能使用套接字，或者本地存储文件。

I'm trying to serialize an object and send it over HTTP. I'm using a few tutorials as most deal with sockets but I can't use sockets for this, or with a file been stored locally.

以下是测试类Employee：

Here is the test class Employee:

public class Employee implements java.io.Serializable {
        public String name;
        public String address;
        public transient int SSN;
        public int number;

        public void mailCheck() {
            System.out.println("Mailing a check to " + name + " " + address);
        }

} 

客户端：

public class SerializeAndSend {

public class SerializeAndSend {

public static void main(String args[]){

      one.Employee e = new one.Employee();
      e.name = "Reyan Ali";
      e.address = "Phokka Kuan, Ambehta Peer";
      e.SSN = 11122333;
      e.number = 101;

      sendObject(e);

}

public static Object sendObject(Object obj) {
    URLConnection conn = null;
    Object reply = null;
    try {

        // open URL connection
        URL url = new URL("///myURL///");
        conn = url.openConnection();
        conn.setDoInput(true);
        conn.setDoOutput(true);
        conn.setUseCaches(false);
        // send object
        ObjectOutputStream objOut = new ObjectOutputStream(conn.getOutputStream());
        objOut.writeObject(obj);
        objOut.flush();
        objOut.close();
    } catch (IOException ex) {
        ex.printStackTrace();
        return null;
    }
    // recieve reply
    try {
        ObjectInputStream objIn = new ObjectInputStream(conn.getInputStream());
        reply = objIn.readObject();
        objIn.close();
    } catch (Exception ex) {
        // it is ok if we get an exception here
        // that means that there is no object being returned
        System.out.println("No Object Returned");
        if (!(ex instanceof EOFException))
            ex.printStackTrace();
            System.err.println("*");
    }
    return reply;
}

}

我认为这是正确的。但我停留在服务器端，我在服务器端也有员工类：

I think thats correct. But I'm stuck on the server end, I have the employee class on the server side too:

public void doPost（HttpServletRequest req，HttpServletResponse resp）抛出IOException {

public void doPost(HttpServletRequest req, HttpServletResponse resp) throws IOException {

Object obj;
ObjectInputStream objIn = new ObjectInputStream(req.getInputStream()); 

try {
    obj = objIn.readObject();
} catch (ClassNotFoundException e) {
    e.printStackTrace();
}

Employee e = obj;

}

如何将此转为此对象回到员工类对象？

How do I turn this object back into an employee class object?

任何帮助表示感谢！

推荐答案

只是对它进行类型转换。

Just typecast it.

Employee emp = (Employee)objIn.readObject();

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