小编Sve*_*exo的帖子

尝试序列化类别时,我得到一个stackoverflow.

例外

警告:StandardWrapperValve [dispatcher]:Servlet调度程序的Servlet.service()在java.lang.ClassLoader.defineClass(ClassLoader.java:760)的java.lang.ClassLoader.defineClass1(本机方法)中抛出异常java.lang.StackOverflowError at org.apache.felix.framework.BundleWiringImpl $ BundleClassLoader.findClass(BundleWiringImpl.java:2279)位于org.apache.felix.framework.BundleWiringImpl的org.apache.felix.framework.BundleWiringImpl.findClassOrResourceByDelegation(BundleWiringImpl.java:1501).在com.fasterxml的java.lang.ClassLoader.loadClass(ClassLoader.java:357)的org.apache.felix.framework.BundleWiringImpl $ BundleClassLoader.loadClass(BundleWiringImpl.java:1955)访问$ 400(BundleWiringImpl.java:75). com的jackson.databind.ser.std.BeanSerializerBase.serializeFields(BeanSerializerBase.java:660).quickxml.jackson.databind.ser.BeanSerializer.serialize(BeanSerializer.java:152)位于com.fasterxml.jackson.databind的com.fasterxml.jackson.databind.ser.impl.IndexedListSerializer.serializeContents(IndexedListSerializer.java:100). ser.impl.IndexedListSerializer.serializeContents(IndexedListSerializer.java:21)位于com.fasterxml.jackson.databind.ser.BeanPropertyWriter的com.fasterxml.jackson.databind.ser.std.AsArraySerializerBase.serialize(AsArraySerializerBase.java:183). serializeAsField(BeanPropertyWriter.java:541)位于com.fasterxml.jackson.databind.ser.std.BeanSerializerBase.serializeFields(BeanSerializerBase.java:644)的com.fasterxml.jackson.databind.ser.BeanSerializer.serialize(BeanSerializer.java: 152)databind.ser.impl.IndexedListSerializer.serializeContents(IndexedListSerializer.java:100)位于com.fasterxml.jackson.databind.ser的com.fasterxml.jackson.databind.ser.impl.IndexedListSerializer.serializeContents(IndexedListSerializer.java:21). std.AsArraySerializerBase.serialize(AsArraySerializerBase.java:183)位于com.fasterxml.jackson.databind.ser.BeanPropertyWriter.serializeAsField(BeanPropertyWriter.java:541)的com.fasterxml.jackson.databind.ser.std.BeanSerializerBase.serializeFields( BeanSerializerBase.java:644)at com.fasterxml.jackson.databind.ser.BeanSerializer.serialize(BeanSerializer.java:152)databind.ser.impl.IndexedListSerializer.serializeContents(IndexedListSerializer.java:100)位于com.fasterxml.jackson.databind.ser的com.fasterxml.jackson.databind.ser.impl.IndexedListSerializer.serializeContents(IndexedListSerializer.java:21). std.AsArraySerializerBase.serialize(AsArraySerializerBase.java:183)位于com.fasterxml.jackson.databind.ser.BeanPropertyWriter.serializeAsField(BeanPropertyWriter.java:541)的com.fasterxml.jackson.databind.ser.std.BeanSerializerBase.serializeFields( BeanSerializerBase.java:644)at com.fasterxml.jackson.databind.ser.BeanSerializer.serialize(BeanSerializer.java:152)quickxml.jackson.databind.ser.std.AsArraySerializerBase.serialize(AsArraySerializerBase.java:183)at com.fasterxml.jackson.databind.ser.BeanPropertyWriter.serializeAsField(BeanPropertyWriter.java:541)at com.fasterxml.jackson.databind. ser.std.BeanSerializerBase.serializeFields(BeanSerializerBase.java:644)at com.fasterxml.jackson.databind.ser.BeanSerializer.serialize(BeanSerializer.java:152)quickxml.jackson.databind.ser.std.AsArraySerializerBase.serialize(AsArraySerializerBase.java:183)at com.fasterxml.jackson.databind.ser.BeanPropertyWriter.serializeAsField(BeanPropertyWriter.java:541)at com.fasterxml.jackson.databind. ser.std.BeanSerializerBase.serializeFields(BeanSerializerBase.java:644)at com.fasterxml.jackson.databind.ser.BeanSerializer.serialize(BeanSerializer.java:152)

Category.java

@Entity
public class Category implements DataObject, Serializable {

    @Id
    @GeneratedValue 
    private Long id;
    private String title;
    private String description;

    @ManyToOne @JsonIgnore 
    private Category parent;


@Override
public long getId() {
    return id;
}

@Override
public void setId(long id) {
    this.id = id;
}

public String getTitle() {
    return title;
}

public …

我正在尝试创建一个genric代码来序列化和反序列化实现特定接口的任何对象.问题是我需要在调用.Deserialize()之前创建一个对象的实例,因为你不能在接口中使用静态函数.现在我的问题是如何制作T的实例？还是有更好的方法来实现我的目标？

public static class Serializer
{
    public static byte[] Serialize<T>(T Obj) where T : Data;
    public static T Deserialize<T>(byte[] Data) where T : Data
    {
        //Here I need to something like:  new T().Deserialize(Data);
    }
}
public interface Data
{
    public byte[] Serialize<T>(T obj);
    public T Deserialize<T>(byte[] Data);

Run Code Online (Sandbox Code Playgroud)

}
class Program
{
    static void Main(string[] args)
    {
        Serializer.Deserialize<Dummy>(new byte[20]);
    }
}
class Dummy : Data
{

}