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任何人都可以提供一些如何通过Java连接和查询远程neo4j服务器的示例代码吗?我不是在寻找一个嵌入式neo4j服务器实现。通过Java查询远程neo4j服务器
这里是一个试图得到这个工作:
import org.neo4j.cypher.javacompat.ExecutionEngine;
import org.neo4j.cypher.javacompat.ExecutionResult;
import org.neo4j.graphdb.GraphDatabaseService;
import org.neo4j.rest.graphdb.RestGraphDatabase;
public static void main(String[] args) {
GraphDatabaseService neo4j = new RestGraphDatabase("neo4jurl");
ExecutionEngine engine = new ExecutionEngine(neo4j);
String myCypher = "MATCH n WHERE n.symptom = 'Xanthelasma'";
ExecutionResult result = engine.execute(myCypher);
System.out.println(result.toString());
}
这导致了这个:
Exception in thread "main" java.lang.NoClassDefFoundError: com/sun/jersey/api/client/filter/ClientFilter
at org.neo4j.rest.graphdb.ExecutingRestAPI.createRestRequest(ExecutingRestAPI.java:82)
at org.neo4j.rest.graphdb.ExecutingRestAPI.<init>(ExecutingRestAPI.java:73)
at org.neo4j.rest.graphdb.RestAPIFacade.<init>(RestAPIFacade.java:294)
at org.neo4j.rest.graphdb.RestGraphDatabase.<init>(RestGraphDatabase.java:51)
at mapreduce.NetworkAnalysis.main(NetworkAnalysis.java:20)
Caused by: java.lang.ClassNotFoundException: com.sun.jersey.api.client.filter.ClientFilter
at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
... 5 more
我也试图实现这种用球衣:
String baseURI = new String("neo4jurl");
String payload = "db/data/node/5/relationships/all/CO_SYM";
Client client = ClientBuilder.newClient();
WebTarget target = client.target(baseURI + payload);
System.out.println(target.getUri());
Invocation.Builder invocationBuilder = target.request();
Response response = invocationBuilder.get();
System.out.println(response.getStatus());
System.out.println(response.readEntity(String.class));
这不会返回来自neo4j的数据,但它是html格式的,我想利用密码查询语言。
请发布您的尝试解决问题,一些研究,东西。 SO不是代码写入服务。 – BradleyDotNET
感谢主,我已经更新了这个问题。 – bscolaro
感谢您的更新。你的编辑将大大帮助下一个人看这个问题。 – BradleyDotNET