Linary
commented
3 years ago @zhengyingying HugeGraph has made many changes in the serialization part of Graphson, which does not guarantee that the tinkerpop-java-client that can now adapt to Gremlin.
It is currently known that: HugeVertex and HugeEgde are not supported by the derivatives of the Gremlin client. (Users should better use our hugegraph-java-client instead, related doc)
So, based in version 0.11.2, a runnable configuration: (Note: 0.11.2 is a legacy version, watch out the diff in the latest release)
gremlin-server.yaml:
serializers:
- { className: org.apache.tinkerpop.gremlin.driver.ser.GraphBinaryMessageSerializerV1,
config: {
serializeResultToString: false,
ioRegistries: [com.baidu.hugegraph.io.HugeGraphIoRegistry]
}
}
- { className: org.apache.tinkerpop.gremlin.driver.ser.GraphSONMessageSerializerV1d0,
config: {
serializeResultToString: true,
ioRegistries: [com.baidu.hugegraph.io.HugeGraphIoRegistry]
}
}client driver.yaml:
hosts: [localhost]
port: 8182
serializer: {
className: org.apache.tinkerpop.gremlin.driver.ser.GraphSONMessageSerializerV1d0,
config: {
serializeResultToString: true
}
}demo code:
ResultSet results = client.submit("hugegraph.traversal().V()");
results.stream().forEach(result -> {
System.out.println(result.getObject());
// System.out.println(result.getVertex());
});
results = client.submit("hugegraph.traversal().E()");
results.stream().forEach(result -> {
System.out.println(result.getObject());
// System.out.println(result.getEdge());
});Note: Because deserialization on the gremlin client is not supported, getVertex and getEdge methods cannot be used
注意：因为不支持在gremlin客户端的反序列化，所以不能用getVertex和getEdge方法。
zhengyingying
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Your Question ( 问题描述 )
希望通过Java代码远程访问Huge Graph Server，但是按照[https://github.com/hugegraph/hugegraph/issues/345]的方法无法实现。
本地hugegraph.yaml文件内容如下：
远程【192.168.1.101】gremlin-server.yaml文件内容如下：
事先在远端【192.168.1.101】HugeGraph数据库中，使用console写入数据： gremlin> hugegraph.traversal().V() ==>[id:1:josh,label:person,type:vertex,properties:[name:josh,age:32,city:Beijing]] ==>[id:2:ripple,label:software,type:vertex,properties:[name:ripple,lang:java,price:199]] ==>[id:1:peter,label:person,type:vertex,properties:[name:peter,age:35,city:Shanghai]] ==>[id:1:vadas,label:person,type:vertex,properties:[name:vadas,age:27,city:Hongkong]] ==>[id:2:lop,label:software,type:vertex,properties:[name:lop,lang:java,price:328]] ==>[id:1:marko,label:person,type:vertex,properties:[name:marko,age:29,city:Beijing]]
本地Java测试代码如下：
报错信息如下：