java - No header mapping was specified, the record values can't be accessed by name (Apache Commons CSV) -

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i got error message happening when i'm trying read csv:

exception in thread "main" java.lang.illegalstateexception: no header mapping specified, record values can't accessed name @ org.apache.commons.csv.csvrecord.get(csvrecord.java:99) @ mockdata.mockdata.main(mockdata.java:33)

java result: 1

i'm using apache commons csv library 1.1. tried googling error message , thing code listing on sites grepcode.

here's code:

package mockdata;  import java.io.fileinputstream; import java.io.filenotfoundexception; import java.io.ioexception; import java.io.inputstreamreader; import java.io.reader; import org.apache.commons.csv.csvformat; import org.apache.commons.csv.csvrecord;  public class mockdata {      /**      * @param args command line arguments      */     public static void main(string[] args) throws filenotfoundexception, ioexception     {         reader in = new inputstreamreader(mockdata.class.getclassloader()                                 .getresourceasstream("mock_data.csv"), "utf-8");         iterable<csvrecord> records = csvformat.excel.parse(in);         (csvrecord record : records)          {             string lastname = record.get("last_name");             string firstname = record.get("first_name");              system.out.println("firstname: " + firstname + " lastname: " + lastname);         }     }  }

the contents of csv:

first_name,last_name,address1,city,state,zip,country,phone,email robin,lee,668 kinsman road,hagerstown,tx,94913,united states,5-(078)623-0713,rlee0@e-recht24.de bobby,moreno,68 dorton avenue,reno,az,79934,united states,5-(080)410-6743,bmoreno1@ihg.com eugene,alexander,3 bunker hill court,newark,ms,30066,united states,5-(822)147-6867,ealexander2@gmpg.org katherine,crawford,3557 caliangt avenue,new orleans,or,23289,united states,2-(686)178-7222,kcrawford3@symantec.com

it's located in src folder.

calling withheader() default excel csv format worked me:

csvformat.excel.withheader().parse(in);

the sample in documentation not clear, can found here : referencing columns safely: if source contains header record, can simplify code , safely reference columns, using withheader(string...) no arguments: csvformat.excel.withheader();


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