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Posted to notifications@dubbo.apache.org by GitBox <gi...@apache.org> on 2022/01/05 12:10:40 UTC
[GitHub] [dubbo] liunancun opened a new issue #9527: 是否支持接口默认方法
liunancun opened a new issue #9527:
URL: https://github.com/apache/dubbo/issues/9527
default <T> void setDeptName(List<T> items, Function<T, Integer> mapper, BiConsumer<T, String> consumer) {
......
}
在接口中定义这样的默认方法，调用的时候报序列化错误
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[GitHub] [dubbo] juzi214032 commented on issue #9527: 是否支持接口默认方法
Posted by GitBox <gi...@apache.org>.
juzi214032 commented on issue #9527:
URL: https://github.com/apache/dubbo/issues/9527#issuecomment-1005721233
有报错信息吗
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[GitHub] [dubbo] juzi214032 edited a comment on issue #9527: 是否支持接口默认方法
Posted by GitBox <gi...@apache.org>.
juzi214032 edited a comment on issue #9527:
URL: https://github.com/apache/dubbo/issues/9527#issuecomment-1005721233
有报错信息吗，我这边测试 2.7.15 是支持 default 方法调用的，理论上其他版本也是支持的
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[GitHub] [dubbo] liunancun commented on issue #9527: 是否支持接口默认方法
Posted by GitBox <gi...@apache.org>.
liunancun commented on issue #9527:
URL: https://github.com/apache/dubbo/issues/9527#issuecomment-1011588543
@juzi214032 那还是没办法把执行结果返回到消费端了
我的需求是想抽取设置部门名字的公共代码，有多个服务涉及到部门，现在是在各自的服务里面都要写一段代码
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[GitHub] [dubbo] liunancun commented on issue #9527: 是否支持接口默认方法
Posted by GitBox <gi...@apache.org>.
liunancun commented on issue #9527:
URL: https://github.com/apache/dubbo/issues/9527#issuecomment-1005753572
报的是序列化异常，因为Function跟BiConsumer没有实现序列化导致的，但这个接口默认方法应该是在消费端执行的，应该不需要序列化才对
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[GitHub] [dubbo] juzi214032 commented on issue #9527: 是否支持接口默认方法
Posted by GitBox <gi...@apache.org>.
juzi214032 commented on issue #9527:
URL: https://github.com/apache/dubbo/issues/9527#issuecomment-1006241761
用函数式接口作为参数的话，consumer 调用的时候不要用 lambda 表达式，需要新写一个类，实现对应的函数式接口和Serializable接口，然后传递该类实例
目前 dubbo 默认的 hessian 不支持lambda表达式的反序列化，我会看一下能否实现一下
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[GitHub] [dubbo] juzi214032 commented on issue #9527: 是否支持接口默认方法
Posted by GitBox <gi...@apache.org>.
juzi214032 commented on issue #9527:
URL: https://github.com/apache/dubbo/issues/9527#issuecomment-1009014453
> 报的是序列化异常，因为Function跟BiConsumer没有实现序列化导致的，但这个接口默认方法应该是在消费端执行的，应该不需要序列化才对
另外补充一下，函数式接口不是在消费端执行的，这段代码会被序列化发送到服务端，在服务端执行
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