在不同的classloader之间进行对象的序列化和反序列化
在同一个classloader中，利用如下的方法serializabale和deserializable对象：
??ByteArrayOutputStream bo=new ByteArrayOutputStream();
??ObjectOutputStream oo=new ObjectOutputStream(bo);
??oo.writeObject(outObject);
?
?? ByteArrayInputStream bi=new ByteArrayInputStream(bo.toByteArray());
??ObjectInputStream oi=new ObjectInputStream(bi);
??Object inObject = oi.readObject();
??? 当序列化的对象和反序列化的对象不在同一个classloader中时，以上的代码执行时，就会报无法把属性付给对象的错误，此时应当，通过设置反序列化得classloader，来解决这个问题。
? 首先，从ObjectInputStream继承一个自己的ObjectInputStream：
public class CustomObjectInputStream extends ObjectInputStream {
?protected ClassLoader classLoader = this.getClass().getClassLoader();
?/**
? * @param in
? * @throws IOException
? */
?public CustomObjectInputStream(InputStream in) throws IOException {
??super(in);
??// TODO Auto-generated constructor stub
?}
?public CustomObjectInputStream(InputStream in, ClassLoader cl)
???throws IOException {
??super(in);
??// TODO Auto-generated constructor stub
??this.classLoader = cl;
?}
?/*
? * (non-Javadoc)
? *
? * @see java.io.ObjectInputStream#resolveClass(java.io.ObjectStreamClass)
? */
?@Override
?protected Class<?> resolveClass(ObjectStreamClass desc) throws IOException,
???ClassNotFoundException {
??// TODO Auto-generated method stub
??String name = desc.getName();
??try {
???return Class.forName(name, false, this.classLoader);
??} catch (ClassNotFoundException ex) {
???return super.resolveClass(desc);
??}
?}
}
然后在反序列化时，把序列化对象的classloader的传入：
?
?
ByteArrayOutputStream bo=new ByteArrayOutputStream();
ObjectOutputStream oo=new ObjectOutputStream(bo);
oo.writeObject(outObject);
?
???ByteArrayInputStream bi=new ByteArrayInputStream(bo.toByteArray());
???CustomObjectInputStream oi=new CustomObjectInputStream(bi,outObject.getClass().getClassLoader());
??
???Object = oi.readObject();
?
