xuyanhua opened a new issue #45:
URL: https://github.com/apache/dubbo-hessian-lite/issues/45
我们使用dubbo的时候，返回的结果对象是这样的
class Result <T>{
int code;//错误码
String message;//错误消息
T module ;//保存数据
}
但是调用时报反序列失败，报错如下：
`Exception in thread "main"
com.alibaba.com.caucho.hessian.io.HessianFieldException: AVX$Result.data:
com.alibaba.com.caucho.hessian.io.ObjectDeserializer: unexpected object
java.lang.String (2)
at
com.alibaba.com.caucho.hessian.io.JavaDeserializer.logDeserializeError(JavaDeserializer.java:163)
at
com.alibaba.com.caucho.hessian.io.JavaDeserializer$ObjectFieldDeserializer.deserialize(JavaDeserializer.java:394)
at
com.alibaba.com.caucho.hessian.io.JavaDeserializer.readObject(JavaDeserializer.java:269)
at
com.alibaba.com.caucho.hessian.io.JavaDeserializer.readObject(JavaDeserializer.java:196)
at
com.alibaba.com.caucho.hessian.io.SerializerFactory.readObject(SerializerFactory.java:527)
at
com.alibaba.com.caucho.hessian.io.Hessian2Input.readObjectInstance(Hessian2Input.java:2743)
at
com.alibaba.com.caucho.hessian.io.Hessian2Input.readObject(Hessian2Input.java:2683)
at
com.alibaba.com.caucho.hessian.io.Hessian2Input.readObject(Hessian2Input.java:2657)
at AVX.deserialize(AVX.java:37)
at AVX.main(AVX.java:18)
Caused by: com.alibaba.com.caucho.hessian.io.HessianProtocolException:
com.alibaba.com.caucho.hessian.io.ObjectDeserializer: unexpected object
java.lang.String (2)
at
com.alibaba.com.caucho.hessian.io.AbstractDeserializer.error(AbstractDeserializer.java:101)
at
com.alibaba.com.caucho.hessian.io.AbstractDeserializer.readMap(AbstractDeserializer.java:90)
at
com.alibaba.com.caucho.hessian.io.Hessian2Input.readObject(Hessian2Input.java:2066)
at
com.alibaba.com.caucho.hessian.io.JavaDeserializer$ObjectFieldDeserializer.deserialize(JavaDeserializer.java:390)
... 8 more
`
代码如下：
`
import com.alibaba.com.caucho.hessian.io.Hessian2Input;
import com.alibaba.com.caucho.hessian.io.Hessian2Output;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.Serializable;
import java.util.HashMap;
public class AVX {
public static void main(String[] args) throws IOException,
ClassNotFoundException {
HashMap<String, String> map = new HashMap<>();
map.put("2", "2");
Result<HashMap<String, String>> test = new Result(map);
byte[] bytes = serialize(test);
Result<HashMap<String, String>> mm = (Result<HashMap<String,
String>>) deserialize(bytes);
System.out.println(mm);
}
public static byte[] serialize(Object obj) throws IOException {
if (obj == null) throw new NullPointerException();
ByteArrayOutputStream os = new ByteArrayOutputStream();
Hessian2Output ho = new Hessian2Output(os);
ho.writeObject(obj);
ho.flushBuffer();
return os.toByteArray();
}
public static Object deserialize(byte[] by) throws IOException {
if (by == null) throw new NullPointerException();
ByteArrayInputStream is = new ByteArrayInputStream(by);
Hessian2Input hi = new Hessian2Input(is);
return hi.readObject();
}
static class Result<T extends Serializable> implements Serializable {
public Result(T data) {
this.data = data;
}
private T data;
public T getData() {
return data;
}
public void setData(T data) {
this.data = data;
}
@Override
public String toString() {
return "Result{" +
"data=" + data +
'}';
}
}
}`
经过测试，如果
`static class Result<T extends Serializable> implements Serializable {`
改为
`static class Result<T> implements Serializable {`
则能正常反序列化出来。
求大神帮助 看看
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