Elastic search(6.2.4) connect using RestHighLevelClient

Question

I have been trying to connect to elastic search(6.2.4) using RestHighLevelClient using java 1.8. I have added all the dependencies and I'm using the following code in a simple jsp.

sample.jsp

<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
    pageEncoding="ISO-8859-1"%>

  <%@page import="java.util.*" %>
  <%@page import="java.io.*" %>
  <%@page import="com.google.gson.*" %>
  <%@page import="org.apache.http.*"%>
  <%@page import= "org.elasticsearch.client.*"%>
  <%@page import= "org.elasticsearch.common.document.*"%>
  <%@page import= "org.elasticsearch.index.query.*"%>
  <%@page import= "org.elasticsearch.action.get.*"%>
  <%@page import= "org.elasticsearch.search.*"%>
  <%@page import= "org.elasticsearch.search.fetch.subphase.*"%>
  <%@page import= "org.elasticsearch.search.builder.*"%>






Elastic Report


<%
RestHighLevelClient client=null;
Gson gson = new Gson(); 

try{
 client = new RestHighLevelClient(
        RestClient.builder(new HttpHost("xx.yy.xx.zz", 9201, "http")));

GetRequest getRequest = new GetRequest(
        "samples", 
        "sample",  
        "xxxxxxxxxx");
String[] includes = new String[]{"ip"};
String[] excludes = {};
FetchSourceContext fetchSourceContext =
        new FetchSourceContext(true, includes, excludes);
getRequest.fetchSourceContext(fetchSourceContext);  

GetResponse getResponse = client.get(getRequest);
if(getResponse.isExists()){
Map fields = getResponse.getFields();
String json = gson.toJson(fields); 
out.write(json);
}
client.close();
}
catch(Exception ex){
    ex.printStackTrace();
}

%>

All the dependencies are added and here is my eclipse snapshot

However, I'm getting the following error immediately once I fire my tomcat on eclipse

org.apache.jasper.JasperException: javax.servlet.ServletException: java.lang.NoClassDefFoundError: org/elasticsearch/common/logging/Loggers
    org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:556)
    org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:462)
    org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:395)
    org.apache.jasper.servlet.JspServlet.service(JspServlet.java:339)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
    org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
root cause

javax.servlet.ServletException: java.lang.NoClassDefFoundError: org/elasticsearch/common/logging/Loggers
    org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:916)
    org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:845)
    org.apache.jsp.elasticsearch_jsp._jspService(elasticsearch_jsp.java:140)
    org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
    org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:439)
    org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:395)
    org.apache.jasper.servlet.JspServlet.service(JspServlet.java:339)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
    org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)

Loggers class is not available in the jar(6.2.4 version)

However, once I refresh the page, I get the below error

 org.apache.jasper.JasperException: javax.servlet.ServletException: java.lang.NoClassDefFoundError: Could not initialize class org.elasticsearch.common.ParseField
        org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:556)
        org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:462)
        org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:395)
        org.apache.jasper.servlet.JspServlet.service(JspServlet.java:339)
        javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
        org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
    root cause

    javax.servlet.ServletException: java.lang.NoClassDefFoundError: Could not initialize class org.elasticsearch.common.ParseField
        org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:916)
        org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:845)
        org.apache.jsp.elasticsearch_jsp._jspService(elasticsearch_jsp.java:140)
        org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
        javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
        org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:439)
        org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:395)
        org.apache.jasper.servlet.JspServlet.service(JspServlet.java:339)
        javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
        org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)

I haven been able to find the ParseField class in the expanded package. However application is failing with No class found error

Can anyone let me know what is the mistake I'm making here? Also, can anyone point me to a full sample project using RestHighlevelclient with all dependencies(jars) to include?

Any help is appreciated.

Elastic search(6.2.4) connect using RestHighLevelClient

Answers (1)

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