來自Java的DSE圖形 - 無法訪問DelegatingCluster

Question

以下代碼片段嘗試連接到Graph並對其執行一些操作。它旨在使用Graph的DSE Java驅動程序1.1運行。

import com.datastax.driver.dse.graph.GraphStatement; 
import com.datastax.driver.dse.graph.SimpleGraphStatement; 
import com.datastax.driver.dse.DseCluster; 
import com.datastax.driver.dse.DseSession; 

public class GraphTest { 

    public static void main(String[] args) { 
     System.out.println("Start..."); 

     DseCluster dseCluster = DseCluster.builder() 
        .addContactPoint("127.0.0.1") 
        .build(); 
     DseSession dseSession = dseCluster.connect();dseSession.executeGraph("system.graph('demo').ifNotExists().create()"); 

     GraphStatement s1 = new SimpleGraphStatement("g.addV(label, 'test_vertex')").setGraphName("demo");  
     dseSession.executeGraph(s1); 

     GraphStatement s2 = new SimpleGraphStatement("g.V()").setGraphName("demo");   
     GraphResultSet rs = dseSession.executeGraph(s2); 

     System.out.println(rs.one().asVertex()); 
     System.out.println("End."); 
    } 
} 

然而，編譯提供了以下錯誤：

javac -cp .\dse-driver-1.1.0.jar GraphTest.java

GraphTest.java:12: error: cannot access DelegatingCluster DseCluster dseCluster = DseCluster.builder() ^ class file for com.datastax.driver.core.DelegatingCluster not found GraphTest.java:16: error: cannot access Session DseSession dseSession = dseCluster.connect();dseSession.executeGraph("system.graph('demo').ifNotExists().create()"); ^ class file for com.datastax.driver.core.Session not found GraphTest.java:22: error: cannot find symbol GraphResultSet rs = dseSession.executeGraph(s2); ^ symbol: class GraphResultSet location: class GraphTest 3 errors

它看起來像訪問類建立會話不對勁。這裏有什麼遺漏嗎？

Answer 1

從Maven獲取依賴關係，它將執行此操作。

檢查： http://docs.datastax.com/en/developer/java-driver-dse//1.1.0/