如何使Jersey使用Java序列化？

小编典典

如何使Jersey使用Java序列化？

java

我意识到这有点不稳定，但是我想使用Jersey客户端GenericMessage使用Java序列化作为“编组”
将Spring
Integration发送到Jersey服务器。是否对此具有内置或贡献支持，还是我必须编写自己的MessageBodyReader
/
Writer？我试图在客户端请求的类型设置到两个“应用程序/
x-java的序列化对象”，并MediaType.APPLICATION_OCTET_STREAM_TYPE和它只是提供了常用的：

ClientHandlerException: A message body writer for Java type,
    class org.springframework.integration.message.GenericMessage,
    and MIME media type, application/x-java-serialized-object, was not found

谷歌和泽西岛用户指南都对这一主题感到奇怪。我也接受另一种方法，允许将任意内容发送GenericMessage到Jersey
API。我不一定要进行序列化。似乎是处理具有任意有效负载类型的消息的最简单途径。

阅读 243

2020-11-26

共1个答案

小编典典

我仍然没有找到一个，显然也没有人知道，所以我使用Commons
Lang的SerializationUtils编写了自己的快速实现来为我做些肮脏的工作：

import org.apache.commons.lang.SerializationUtils;
import org.springframework.stereotype.Component;

import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.MultivaluedMap;
import javax.ws.rs.ext.MessageBodyReader;
import javax.ws.rs.ext.MessageBodyWriter;
import javax.ws.rs.ext.Provider;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.Serializable;
import java.lang.annotation.Annotation;
import java.lang.reflect.Type;

/**
 * Created with IntelliJ IDEA.
 * User: ryan
 * Date: 2/25/13
 * Time: 2:07 PM
 */
@Component
@Provider
public class SerializationMessageBodyReaderAndWriter
        implements MessageBodyReader<Serializable>, MessageBodyWriter<Serializable> {
    public static final String APPLICATION_JAVA_SERIALIZED_OBJECT =
            "application/x-java-serialized-object";
    public static final MediaType APPLICATION_JAVA_SERIALIZED_OBJECT_TYPE =
            MediaType.valueOf(APPLICATION_JAVA_SERIALIZED_OBJECT);

    @Override
    public boolean isReadable(Class<?> type,
                              Type genericType,
                              Annotation[] annotations,
                              MediaType mediaType) {
        return mediaType.isCompatible(APPLICATION_JAVA_SERIALIZED_OBJECT_TYPE)
                && Serializable.class.isAssignableFrom(type);
    }

    @Override
    public Serializable readFrom(Class<Serializable> type,
                                 Type genericType,
                                 Annotation[] annotations,
                                 MediaType mediaType,
                                 MultivaluedMap<String, String> httpHeaders,
                                 InputStream entityStream) {
        return (Serializable) SerializationUtils.deserialize(entityStream);
    }

    @Override
    public boolean isWriteable(Class<?> type,
                               Type genericType,
                               Annotation[] annotations,
                               MediaType mediaType) {
        return mediaType.isCompatible(APPLICATION_JAVA_SERIALIZED_OBJECT_TYPE)
                && Serializable.class.isAssignableFrom(type);
    }

    @Override
    public long getSize(Serializable o,
                        Class<?> type,
                        Type genericType,
                        Annotation[] annotations,
                        MediaType mediaType) {
        return -1;
    }

    @Override
    public void writeTo(Serializable o,
                        Class<?> type,
                        Type genericType,
                        Annotation[] annotations,
                        MediaType mediaType,
                        MultivaluedMap<String, Object> httpHeaders,
                        OutputStream entityStream) {
        SerializationUtils.serialize(o, entityStream);
    }
}

2020-11-26