我是Apache Ignite的新手，我需要通过java访问igfs文件。 直到现在我尝试的是：
import java.io.InputStream;
import org.apache.ignite.Ignite;
import org.apache.ignite.IgniteFileSystem;
import org.apache.ignite.Ignition;
import org.apache.ignite.igfs.IgfsPath;
public class Ignite_Spark {
public static void main(String[] args) throws Exception {
Ignite ignite = Ignition.start("/usr/local/hadoop/apache-ignite-hadoop-1.6.0-bin/config/default-config.xml");
Ignite ignites = Ignition.ignite();
IgniteFileSystem fs = ignites.fileSystem("igfs");
IgfsPath workDir = new IgfsPath("igfs://localhost:8020/ignite/fs");
fs.mkdirs(workDir);
IgfsPath filePath = new IgfsPath(workDir, "ttypes.csv");
try (InputStream in = fs.open(filePath)) {
in.read();
}
}
}
但是当我运行这个iam时会遇到异常，例如：
引起：class org.apache.ignite.IgniteCheckedException：失败 实例化Spring XML应用程序上下文（确保使用所有类 在Spring配置中出现在CLASSPATH） [springUrl =文件：/usr/local/hadoop/ignite/config/default-config.xml]
答案 0 :(得分：0)
Data inserting and retriving from igfs file system
My csc File(test.csv)
////////////////////////////////
123,111,wqw,131,11221,1212
123,111,wqw,131,11221,1212
eke,lelel,elelel,lelel
w2,2,,2,2,,2,2,2,
/////////////////////////////////
Here configuration file is "D:/apache-ignite-fabric-1.5.0-b1-bin/examples/config/filesystem/example-igfs.xml"
java code:
//////////////////////////////////////////////////////////////////////////////////////start////////////////////////////////////////
package org.apache.ignite.igfs;
//package org.apache.ignite.igfs;
import java.io.FileReader;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import org.apache.ignite.Ignite;
import org.apache.ignite.Ignition;
import org.apache.ignite.igfs.IgfsPath;
public class test1 {
public static void main(String[] args) throws IOException {
// Here config file example-igfs.xml contanis igfs configuration
Ignite ignite = Ignition.start("D:/apache-ignite-fabric-1.5.0-b1-bin/examples/config/filesystem/example-igfs.xml");
org.apache.ignite.IgniteFileSystem fs = ignite.fileSystem("igfs");
//creating a directory in igfs
IgfsPath dir = new IgfsPath("/workDir");
//creating a file
IgfsPath file = new IgfsPath(dir, "myFile1");
//deleting files and directory to avoid file overwrite
fs.delete(dir,true);
fs.mkdirs(dir);
//reading data from desktop("C:\\Users\\rb059\\Desktop\\test.csv") and writing into igfs file("MyFile1")
try (OutputStream out = fs.create(file, true)) {
String csvFile = "C:\\Users\\rb059\\Desktop\\test.csv";
String line = "";
String cvsSplitBy = ",";
BufferedReader br = new BufferedReader(new FileReader(csvFile));
while ((line = br.readLine()) != null) {
String s = line + "\n";
out.write(s.getBytes());
System.out.println("inserting data from" + csvFile + " to " + file +" inserted record is " + s);
}
}
//getting data from ignite file
try (InputStream in = fs.open(file)) {
System.out.println("this is data retriving from" + file);
String line = "";
BufferedReader br = new BufferedReader(new InputStreamReader(in));
while ((line = br.readLine()) != null) {
System.out.println(line);
}
}
}
}
///////////////////////////////////////////////java code end/////////////////////////////////////////
output:
[11:34:19] / _/ ___/ |/ / _/_ __/ __/
[11:34:19] _/ // (7 7 // / / / / _/
[11:34:19] /___/\___/_/|_/___/ /_/ /___/
[11:34:19]
[11:34:19] ver. 1.5.0-b1#20151202-sha1:062d440c
[11:34:19] 2015 Copyright(C) Apache Software Foundation
[11:34:19]
[11:34:19] Ignite documentation: http://ignite.apache.org
[11:34:19]
[11:34:19] Quiet mode.
[11:34:19] ^-- Logging to file 'D:\apache-ignite-fabric-1.5.0-b1-bin\work\log\ignite-b474b4d7.0.log'
[11:34:19] ^-- To see **FULL** console log here add -DIGNITE_QUIET=false or "-v" to ignite.{sh|bat}
[11:34:19]
[11:34:19] OS: Windows 7 6.1 amd64
[11:34:19] VM information: Java(TM) SE Runtime Environment 1.8.0_111-b14 Oracle Corporation Java HotSpot(TM) 64-Bit Server VM 25.111-b14
[11:34:19] Initial heap size is 128MB (should be no less than 512MB, use -Xms512m -Xmx512m).
[11:34:21] Configured plugins:
[11:34:21] ^-- None
[11:34:21]
[11:34:21] Security status [authentication=off, tls/ssl=off]
[11:34:26] Attempting to start more nodes than physical RAM available on current host (this can cause significant slowdown)
[11:34:30] Performance suggestions for grid (fix if possible)
[11:34:30] To disable, set -DIGNITE_PERFORMANCE_SUGGESTIONS_DISABLED=true
[11:34:30] ^-- Disable peer class loading (set 'peerClassLoadingEnabled' to false)
[11:34:30] ^-- Use default binary marshaller (do not set 'marshaller' explicitly)
[11:34:30]
[11:34:30] To start Console Management & Monitoring run ignitevisorcmd.{sh|bat}
[11:34:30]
[11:34:30] Ignite node started OK (id=b474b4d7)
[11:34:30] Topology snapshot [ver=18, servers=18, clients=0, CPUs=4, heap=31.0GB]
inserting data fromC:\Users\rb059\Desktop\test.csv to /workDir/myFile1 inserted record is 123,111,wqw,131,11221,1212
inserting data fromC:\Users\rb059\Desktop\test.csv to /workDir/myFile1 inserted record is 123,111,wqw,131,11221,1212
inserting data fromC:\Users\rb059\Desktop\test.csv to /workDir/myFile1 inserted record is 123,111,wqw,131,11221,1212
inserting data fromC:\Users\rb059\Desktop\test.csv to /workDir/myFile1 inserted record is 123,111,wqw,131,11221,1212
inserting data fromC:\Users\rb059\Desktop\test.csv to /workDir/myFile1 inserted record is 123,111,wqw,131,11221,1212
inserting data fromC:\Users\rb059\Desktop\test.csv to /workDir/myFile1 inserted record is 123,111,wqw,131,11221,1212
inserting data fromC:\Users\rb059\Desktop\test.csv to /workDir/myFile1 inserted record is eke,lelel,elelel,lelel
inserting data fromC:\Users\rb059\Desktop\test.csv to /workDir/myFile1 inserted record is w2,2,,2,2,,2,2,2,
this is data retriving from/workDir/myFile1
123,111,wqw,131,11221,1212
123,111,wqw,131,11221,1212
123,111,wqw,131,11221,1212
123,111,wqw,131,11221,1212
123,111,wqw,131,11221,1212
123,111,wqw,131,11221,1212
eke,lelel,elelel,lelel
w2,2,,2,2,,2,2,2,
[11:34:31] New version is available at ignite.apache.org: 1.7.0
答案 1 :(得分：0)
我相信您可能需要包含ignite-spring mvn依赖项，以便使用spring .xml文件启动点燃。