1.1.3.2.9 串行化
串行化 以标准格式将任意的Java数据结构转换为字节流。例如，下面的程序输出随机整数数组:
import java.io.*;
import java.util.*;
public class serial1 {
public static void main(String args[]) {
ArrayList al = new ArrayList();
Random rn = new Random();
final int N = 100000;
for (int i = 1; i <= N; i++)
al.add(new Integer(rn.nextInt()));
try {
FileOutputStream fos = new FileOutputStream("test.ser");
BufferedOutputStream bos = new BufferedOutputStream(fos);
ObjectOutputStream oos = new ObjectOutputStream(bos);
oos.writeObject(al);
oos.close();
} catch (Throwable e) {
System.err.println(e);
}
}
}
而下面的程序读回数组:
import java.io.*;
import java.util.*;
public class serial2 {
public static void main(String args[]) {
ArrayList al = null;
try {
FileInputStream fis = new FileInputStream("test.ser");
BufferedInputStream bis = new BufferedInputStream(fis);
ObjectInputStream ois = new ObjectInputStream(bis);
al = (ArrayList) ois.readObject();
ois.close();
} catch (Throwable e) {
System.err.println(e);
}
}
}