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dubbo简单示例启动报错
dubbo简单示例启动报错
配置文件
<dubbo:application name="demo-provider"/>
<dubbo:registry address="multicast://224.5.6.7:1234"/>
<dubbo:protocol name="dubbo" port="20880"/>
<dubbo:service interface="com.justz.dubbo.api.demo.DemoProvider" ref="demoProvider"/>
<bean id="demoProvider" class="com.justz.dubbo.api.demo.DemoProviderImpl"/>
日志
Exception in thread "main" java.lang.IllegalStateException: Can't assign requested address
at com.alibaba.dubbo.registry.multicast.MulticastRegistry.<init>(MulticastRegistry.java:116)
at com.alibaba.dubbo.registry.multicast.MulticastRegistryFactory.createRegistry(MulticastRegistryFactory.java:30)
at com.alibaba.dubbo.registry.support.AbstractRegistryFactory.getRegistry(AbstractRegistryFactory.java:94)
...
Caused by: java.net.SocketException: Can't assign requested address
at java.net.PlainDatagramSocketImpl.join(Native Method)
at java.net.AbstractPlainDatagramSocketImpl.join(AbstractPlainDatagramSocketImpl.java:179)
at java.net.MulticastSocket.joinGroup(MulticastSocket.java:323)
at com.alibaba.dubbo.registry.multicast.MulticastRegistry.<init>(MulticastRegistry.java:90)
原因
java.net.NetworkInterface.getDefault()返回了IPv6地址
解决方案
启动时添加vm参数:
-Djava.net.preferIPv4Stack=true
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