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Solr Insertion Using java

import org.apache.solr.client.solrj.SolrServerException;
import org.apache.solr.client.solrj.impl.HttpSolrServer;
import org.apache.solr.common.SolrInputDocument;
import java.io.IOException;
public class FeedIntoSolr{
public static void main(String[] args) throws IOException, SolrServerException {
HttpSolrServer server = new HttpSolrServer("http://localhost:8983/solr");
for(int i=0;i<1000;++i) {
SolrInputDocument doc = new SolrInputDocument();
doc.addField("cat", "book");
doc.addField("id", "book-" + i);
doc.addField("name", "The Legend of the Hobbit part " + i);
server.add(doc);
if(i%100==0)
server.commit(); // periodically flush
}
server.commit();
}
}
Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/http/client/methods/HttpRequestBase
at FeedIntoSolr.main(FeedIntoSolr.java:9)
Caused by: java.lang.ClassNotFoundException: org.apache.http.client.methods.HttpRequestBase
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)
... 1 more

You are missing httpclient's jar in your classpath.
Ensure you have this jar in your classpath and you should get rid of this error.

You need to add http client implementation
You can update your pom.xml with maven
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpclient</artifactId>
<version>4.5.1</version>
</dependency>
Or download it at https://hc.apache.org/downloads.cgi and add it to the classpath in Eclipse with Project > Properties > Build Path

Thanks to all for responding..I got the answer of question asked by me.
1)first of all you need to add the jar files which is already available in solr folder(you will see when you unzipped it)
2)Jar Files in the folder solr-5.2.1->dist( add only solr-solrj-5.2.1.jar in classpath) and solr->dist->solrj-lib(add all jar in classpath)
3)you have to add two another file commons-logging-1.2.jar and slf4j-simple-1.7.12.jar
This is working for me..

Error using apache -common-validator --java.lang.NoClassDefFoundError: org/apache/commons/digester/Rule

I am using following jars-
commons-validator-1.4.0 ; commons.logging-1.2 ; commons.digester-1.8 ;commons.beanutils-1.8.3
commons.collections-3.2.1
but keeps on getting same error at line -
Caused by: java.lang.ClassNotFoundException: org.apache.commons.digester.Rule
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:423)
com.google.appengine.tools.development.IsolatedAppClassLoader.loadClass(IsolatedAppClassLoader.java:216)
This is the code i am writing -
InputStream in = this.getClass().getResourceAsStream("validator-name-required.xml");
// Create an instance of ValidatorResources to initialize from an xml file.
ValidatorResources resources = new ValidatorResources(in);
Please help its been a day i am stuck into this error !! Thanks in advance

Finally i am able to do this. I have used the following jars -
commons-beanutils-1.8.3.jar
commons-collections-3.2.1.jar
commons-digester-1.8.jar
commons-logging-1.1.1.jar
commons-validator-1.4.0.jar
and this works :)

Its look like that "org.apache.commons.digester.Rule" class was not found, Version 2.1 of digester have Rule.class, download this version and try.

Unable to run java with an external library

I saw this post but I wasn't clear on what the resolution was.
I'm trying to run a java program from command line utilizing an external library. Here is the total output of my session:
grifter#host:~/java$ cat ExtractTest.java
import java.io.IOException;
import org.apache.pdfbox.util.PDFTextStripper;
import org.apache.pdfbox.pdmodel.PDDocument;
import java.io.File;
public class ExtractTest {
public static void main(String[] args) throws IOException {
System.out.println("About to open PDF");
File fh = new File("/home/grifter/test.pdf");
PDDocument d = PDDocument.load(fh);
System.out.println("Here");
PDFTextStripper ts = new PDFTextStripper();
System.out.println(ts.getText(d));
}
}
grifter#host:~/java$ javac -cp .:/home/grifter/pdfbox-1.8.5/pdfbox/target/pdfbox-1.8.5.jar ExtractTest.java
grifter#host:~/java$ java -classpath .:/home/grifter/pdfbox-1.8.5/pdfbox/target/pdfbox-1.8.5.jar ExtractTest
About to open PDF
Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/commons/logging/LogFactory
at org.apache.pdfbox.pdfparser.BaseParser.<clinit>(BaseParser.java:68)
at org.apache.pdfbox.pdmodel.PDDocument.load(PDDocument.java:1219)
at org.apache.pdfbox.pdmodel.PDDocument.load(PDDocument.java:1187)
at org.apache.pdfbox.pdmodel.PDDocument.load(PDDocument.java:1158)
at ExtractTest.main(ExtractTest.java:12)
Caused by: java.lang.ClassNotFoundException: org.apache.commons.logging.LogFactory
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
Could someone please point me in the right direction?
Any help is appreciated.

pdf box uses dependencies, which also needs to be added to your class path. You can read about the dependecies here

The jar commons-logging and the dependencies is missing in your classpath.
You can download it here

java.lang.NoClassDefFoundError when running with cmd

I have some problems testing a program from a java programming book. I wrote the code in eclipse and succeded running it, but when I compile the .java file via the command line and then run it with java ConsoleEcho, I get this error:
Exception in thread "main" java.lang.NoClassDefFoundError: ConsoleEcho (wrong na
me: einausgabe/ConsoleEcho)
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:792)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:14
2)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:482)
The code for my program is:
package einausgabe;
import java.io.IOException;
import static java.lang.System.*;
public class ConsoleEcho {
public static void main( String args[] ) throws IOException {
while( true ) {
int code = in.read();
out.write(code);
}
}
}
The commands I used are:
javac ConsoleEcho
java ConsoleEcho
I run this from the directory ..\Java\ProgrammierenMitJava2\src\einausgabe
I don't get any errors by compiling. Tried java einausgabe.ConsoleEcho and then I get this error message:
Error: Could not find or load main class einausgabe.ConsoleEcho

You need to include the package name in the command line, something like:
java einausgabe.ConsoleEcho
you appear to just have the class name in your command.

It seems that you forgot the package name
Use
java einausgabe.ConsoleEcho

Error in creating owl file

I want to create ontology whit this code:
public static void main(String[] args) throws FileNotFoundException {
// TODO code application logic here
OntModel my_model= ModelFactory.createOntologyModel();
ObjectProperty op = my_model.createObjectProperty("b");
OntClass my_class = my_model.createClass("student");
DatatypeProperty dtp = my_model.createDatatypeProperty("name");
dtp.addDomain(my_class);
FileOutputStream univer= new FileOutputStream("c:/uni.owl");
my_model.write(univer,"RDF/XML-ABBREV","ns");
}
But it gives this error:
java.lang.NoClassDefFoundError: com/hp/hpl/jena/rdf/model/Resource
Caused by: java.lang.ClassNotFoundException: com.hp.hpl.jena.rdf.model.Resource
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
Could not find the main class: javaapplication6.Main. Program will exit.
Exception in thread "main" Java Result: 1
I cannot understand what is the problem.Thanks for any Help.

NoClassDefFoundError means the Java Virtual Machine or a ClassLoader instance tries to load in the definition of a class (as part of a normal method call or as part of creating a new instance using the new expression) and no definition of the class could be found.
Try to download Apache Jena library from here and put it in your classpath