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任何人都可以提供一些如何通過Java連接和查詢遠程neo4j服務器的示例代碼嗎?我不是在尋找一個嵌入式neo4j服務器實現。通過Java查詢遠程neo4j服務器
這裏是一個試圖得到這個工作:
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());
}
這導致了這個:
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
我也試圖實現這種用球衣:
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));
這不會返回來自neo4j的數據,但它是html格式的,我想利用密碼查詢語言。
請發佈您的嘗試解決問題,一些研究,東西。 SO不是代碼寫入服務。 – BradleyDotNET
感謝主,我已經更新了這個問題。 – bscolaro
感謝您的更新。你的編輯將大大幫助下一個人看這個問題。 – BradleyDotNET