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Posted to notifications@dubbo.apache.org by GitBox <gi...@apache.org> on 2022/11/28 09:53:51 UTC
[GitHub] [dubbo] YangSihong opened a new issue, #11042: dubbo3.1 rest protocol :How to specify the SerializerFeature of fastjson
YangSihong opened a new issue, #11042:
URL: https://github.com/apache/dubbo/issues/11042
I tried to do this，But it didn't work at all。
@Bean
public HttpMessageConverters fastJsonHttpMessageConverters() {
FastJsonHttpMessageConverter fastConvert = new FastJsonHttpMessageConverter();
FastJsonConfig fastJsonConfig = new FastJsonConfig();
fastJsonConfig.setSerializerFeatures(SerializerFeature.PrettyFormat,
SerializerFeature.WriteMapNullValue);
//处理日期时间格式化问题
fastJsonConfig.setDateFormat("yyyy-MM-dd hh:mm:ss");
//处理中文乱码问题
List<MediaType> fastMediaTypes = new ArrayList<>();
fastMediaTypes.add(MediaType.APPLICATION_JSON_UTF8);
fastConvert.setSupportedMediaTypes(fastMediaTypes);
fastConvert.setFastJsonConfig(fastJsonConfig);
return new HttpMessageConverters((HttpMessageConverter<?>) fastConvert);
}
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[GitHub] [dubbo] AlbumenJ commented on issue #11042: dubbo3.1 rest protocol :How to specify the SerializerFeature of fastjson
Posted by GitBox <gi...@apache.org>.
AlbumenJ commented on issue #11042:
URL: https://github.com/apache/dubbo/issues/11042#issuecomment-1330503172
Dubbo should provide a way to support custom serilization in Rest protocol.
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[GitHub] [dubbo] YangSihong commented on issue #11042: dubbo3.1 rest protocol :How to specify the SerializerFeature of fastjson
Posted by GitBox <gi...@apache.org>.
YangSihong commented on issue #11042:
URL: https://github.com/apache/dubbo/issues/11042#issuecomment-1354380132
> 我看了一下，这个应该可以使用参数 extension 注入自定义的Provider来实现。 如：extension =com.mydubbo.config.GsonJsonProvider ，需实现MessageBodyWriter 和 MessageBodyReader 接口
>
> ** @Provider @consumes({"application/json", "text/json"}) @produces({"application/json", "text/json"}) public class GsonJsonProvider implements MessageBodyReader, MessageBodyWriter **
我一会试下这种方式，但感觉这种方式怪怪的。
rest协议下不能像dubbo协议那样在protocol下指定序列化方式吗？然后自定义具体的序列化实现扩展方法。
我是通过调整依赖包的方式把fastjson序列化给去掉了，目前默认的是resteasy，能够解决我当前空参数据过滤的问题，但我依然没解决如何自定义序列化扩展方法，比如：SerializerFeature.WriteMapNullValue等等
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[GitHub] [dubbo] AlbumenJ commented on issue #11042: dubbo3.1 rest protocol :How to specify the SerializerFeature of fastjson
Posted by GitBox <gi...@apache.org>.
AlbumenJ commented on issue #11042:
URL: https://github.com/apache/dubbo/issues/11042#issuecomment-1330503517
We can enhance it in the next version.
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[GitHub] [dubbo] cnjxzhao commented on issue #11042: dubbo3.1 rest protocol :How to specify the SerializerFeature of fastjson
Posted by GitBox <gi...@apache.org>.
cnjxzhao commented on issue #11042:
URL: https://github.com/apache/dubbo/issues/11042#issuecomment-1354436391
> > 我看了一下，这个应该可以使用参数 extension 注入自定义的Provider来实现。 如：extension =com.mydubbo.config.GsonJsonProvider ，需实现MessageBodyWriter 和 MessageBodyReader 接口
> > ** @Provider @consumes({"application/json", "text/json"}) @produces({"application/json", "text/json"}) public class GsonJsonProvider implements MessageBodyReader, MessageBodyWriter **
> > 我一会试下这种方式，但感觉这种方式怪怪的。
> > rest协议下不能像dubbo协议那样在protocol下指定序列化方式吗？然后自定义具体的序列化实现扩展方法。
> > 我是通过调整依赖包的方式把fastjson序列化给去掉了，目前默认的是resteasy，能够解决我当前空参数据过滤的问题，但我依然没解决如何自定义序列化扩展方法，比如：SerializerFeature.WriteMapNullValue等等
这个感觉上有那么一点点吧。不过通过定义新参数，像protocol内 增加serialization参数 也是可以的，实现与现有extension 类似。
针对于你说的这个情况，可以在Provider内实现。
如：
1. FastJson 可以重新设置 FastJsonConfig。或者干脆一点继承 com.alibaba.fastjson.support.jaxrs.FastJsonProvider ，在构造函数内设置FastJsonConfig
伪代码：
public XXJsonProvider() {
super();
FastJsonConfig fastJsonConfig = new FastJsonConfig();
fastJsonConfig.setSerializerFeatures(
SerializerFeature.DisableCircularReferenceDetect,
SerializerFeature.WriteMapNullValue
....
);
this.setFastJsonConfig(fastJsonConfig);
}
2. Gson的话可以增加调用 serializeNulls()方法。
gson = new GsonBuilder().serializeNulls().create();
你先试试吧。
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[GitHub] [dubbo] cnjxzhao commented on issue #11042: dubbo3.1 rest protocol :How to specify the SerializerFeature of fastjson
Posted by GitBox <gi...@apache.org>.
cnjxzhao commented on issue #11042:
URL: https://github.com/apache/dubbo/issues/11042#issuecomment-1346470806
Assign it to me. I'll try to fix it.
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[GitHub] [dubbo] cnjxzhao commented on issue #11042: dubbo3.1 rest protocol :How to specify the SerializerFeature of fastjson
Posted by GitBox <gi...@apache.org>.
cnjxzhao commented on issue #11042:
URL: https://github.com/apache/dubbo/issues/11042#issuecomment-1354308107
我看了一下，这个应该可以使用参数 extension 注入自定义的Provider来实现。
如：extension =com.mydubbo.config.GsonJsonProvider ，需实现MessageBodyWriter 和 MessageBodyReader 接口
**
@Provider
@Consumes({"application/json", "text/json"})
@Produces({"application/json", "text/json"})
public class GsonJsonProvider implements MessageBodyReader<Object>, MessageBodyWriter<Object>
**
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[GitHub] [dubbo] YangSihong commented on issue #11042: dubbo3.1 rest protocol :How to specify the SerializerFeature of fastjson
Posted by GitBox <gi...@apache.org>.
YangSihong commented on issue #11042:
URL: https://github.com/apache/dubbo/issues/11042#issuecomment-1354516518
> > > 我看了一下，这个应该可以使用参数 extension 注入自定义的Provider来实现。 如：extension =com.mydubbo.config.GsonJsonProvider ，需实现MessageBodyWriter 和 MessageBodyReader 接口
> > > ** @Provider @consumes({"application/json", "text/json"}) @produces({"application/json", "text/json"}) public class GsonJsonProvider implements MessageBodyReader, MessageBodyWriter **
> > > 我一会试下这种方式，但感觉这种方式怪怪的。
> > > rest协议下不能像dubbo协议那样在protocol下指定序列化方式吗？然后自定义具体的序列化实现扩展方法。
> > > 我是通过调整依赖包的方式把fastjson序列化给去掉了，目前默认的是resteasy，能够解决我当前空参数据过滤的问题，但我依然没解决如何自定义序列化扩展方法，比如：SerializerFeature.WriteMapNullValue等等
>
> 这个感觉上有那么一点点吧。不过通过定义新参数，像protocol内 增加serialization参数 也是可以的，实现与现有extension 类似。 针对于你说的这个情况，可以在Provider内实现。 如：
>
> 1. FastJson 可以重新设置 FastJsonConfig。或者干脆一点继承 com.alibaba.fastjson.support.jaxrs.FastJsonProvider ，在构造函数内设置FastJsonConfig
> 伪代码：
> public XXJsonProvider() {
> super();
> FastJsonConfig fastJsonConfig = new FastJsonConfig();
> fastJsonConfig.setSerializerFeatures(
> SerializerFeature.DisableCircularReferenceDetect,
> SerializerFeature.WriteMapNullValue
> ....
> );
> this.setFastJsonConfig(fastJsonConfig);
> }
> 2. Gson的话可以增加调用 serializeNulls()方法。
> gson = new GsonBuilder().serializeNulls().create();
>
> 你先试试吧。
我比较不解的是，dubbo:protocol name="dubbo" 时，可以通过serialization方式切换序列化实现，但是dubbo:protocol name="rest"时，却无法通过serialization切换，如果rest协议下不支持serialization方式，是不是可以给出明确的运行时提示。
目前实测extension的方式实现MessageBodyReader, MessageBodyWriter是可行的。感谢
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