java - How to invoke a webservice using rest assured -

i new rest assured , having troubles using run basic program. created java project , added required rest assured jars. below simple code:

import com.jayway.restassured.restassured; import com.jayway.restassured.restassured.*; import com.jayway.restassured.matcher.restassuredmatchers.*; import org.hamcrest.matchers.*;  public class restservicetest  {      public static void main(string args[]) throws exception     { //        restassured.baseuri="http://restcountries.eu/rest/v1/";            string str=restassured.get("http://restcountries.eu/rest/v1/name/norway").asstring();           system.out.println(str);       } } 

i have added pom.xml file add following dependencies.

<dependency>   <groupid>com.sun.jersey.jersey-test-framework</groupid>   <artifactid>jersey-test-framework-core</artifactid>   <version>1.9</version>   <scope>test</scope> </dependency> <dependency>   <groupid>com.sun.jersey.jersey-test-framework</groupid>   <artifactid>jersey-test-framework-external</artifactid>   <version>1.9</version> </dependency> 

i getting below exception when ran above code:

exception in thread "main" java.lang.noclassdeffounderror: groovyx/net/http/httpbuilder     @ java.lang.class.getdeclaredmethods0(native method)     @ java.lang.class.privategetdeclaredmethods(unknown source)     @ java.lang.class.privategetpublicmethods(unknown source)     @ java.lang.class.getmethods(unknown source)     @ org.codehaus.groovy.reflection.stdclasses.cachedsamclass.getsammethod(cachedsamclass.java:164)     @ org.codehaus.groovy.reflection.classinfo.issam(classinfo.java:359)     @ org.codehaus.groovy.reflection.classinfo.createcachedclass(classinfo.java:349)     @ org.codehaus.groovy.reflection.classinfo.access$700(classinfo.java:41)     @ org.codehaus.groovy.reflection.classinfo$lazycachedclassref.initvalue(classinfo.java:497)     @ org.codehaus.groovy.reflection.classinfo$lazycachedclassref.initvalue(classinfo.java:488)     @ org.codehaus.groovy.util.lazyreference.getlocked(lazyreference.java:49)     @ org.codehaus.groovy.util.lazyreference.get(lazyreference.java:36)     @ org.codehaus.groovy.reflection.classinfo.getcachedclass(classinfo.java:111)     @ org.codehaus.groovy.reflection.reflectioncache.getcachedclass(reflectioncache.java:110)     @ org.codehaus.groovy.reflection.cachedclass$8.initvalue(cachedclass.java:209)     @ org.codehaus.groovy.reflection.cachedclass$8.initvalue(cachedclass.java:200)     @ org.codehaus.groovy.util.lazyreference.getlocked(lazyreference.java:49)     @ org.codehaus.groovy.util.lazyreference.get(lazyreference.java:36)     @ org.codehaus.groovy.reflection.cachedclass.getinterfaces(cachedclass.java:252)     @ org.codehaus.groovy.reflection.cachedclass.<init>(cachedclass.java:238)     @ org.codehaus.groovy.reflection.classinfo.createcachedclass(classinfo.java:352)     @ org.codehaus.groovy.reflection.classinfo.access$700(classinfo.java:41)     @ org.codehaus.groovy.reflection.classinfo$lazycachedclassref.initvalue(classinfo.java:497)     @ org.codehaus.groovy.reflection.classinfo$lazycachedclassref.initvalue(classinfo.java:488)     @ org.codehaus.groovy.util.lazyreference.getlocked(lazyreference.java:49)     @ org.codehaus.groovy.util.lazyreference.get(lazyreference.java:36)     @ org.codehaus.groovy.reflection.classinfo.getcachedclass(classinfo.java:111)     @ org.codehaus.groovy.reflection.reflectioncache.getcachedclass(reflectioncache.java:110)     @ groovy.lang.metaclassimpl.<init>(metaclassimpl.java:180)     @ groovy.lang.metaclassimpl.<init>(metaclassimpl.java:216)     @ groovy.lang.metaclassimpl.<init>(metaclassimpl.java:228)     @ groovy.lang.metaclassregistry$metaclasscreationhandle.createnormalmetaclass(metaclassregistry.java:171)     @ groovy.lang.metaclassregistry$metaclasscreationhandle.createwithcustomlookup(metaclassregistry.java:161)     @ groovy.lang.metaclassregistry$metaclasscreationhandle.create(metaclassregistry.java:144)     @ org.codehaus.groovy.reflection.classinfo.getmetaclassunderlock(classinfo.java:253)     @ org.codehaus.groovy.reflection.classinfo.getmetaclass(classinfo.java:285)     @ org.codehaus.groovy.runtime.metaclass.metaclassregistryimpl.getmetaclass(metaclassregistryimpl.java:257)     @ org.codehaus.groovy.runtime.invokerhelper.getmetaclass(invokerhelper.java:875)     @ org.codehaus.groovy.runtime.scriptbytecodeadapter.initmetaclass(scriptbytecodeadapter.java:825)     @ com.jayway.restassured.authentication.noauthscheme.$getstaticmetaclass(noauthscheme.groovy)     @ com.jayway.restassured.authentication.noauthscheme.<init>(noauthscheme.groovy)     @ com.jayway.restassured.restassured.<clinit>(restassured.java:317)     @ restservicetest.main(restservicetest.java:16) caused by: java.lang.classnotfoundexception: groovyx.net.http.httpbuilder     @ java.net.urlclassloader$1.run(unknown source)     @ java.net.urlclassloader$1.run(unknown source)     @ java.security.accesscontroller.doprivileged(native method)     @ java.net.urlclassloader.findclass(unknown source)     @ java.lang.classloader.loadclass(unknown source)     @ sun.misc.launcher$appclassloader.loadclass(unknown source)     @ java.lang.classloader.loadclass(unknown source)     ... 43 more 

can need create maven project or java project , add pom.xml file?

i added maven environmental variables.

you need create maven project , add dependencies pom.xml file , build maven project.

other dependencies need add :

<dependency>     <groupid>com.jayway.restassured</groupid>     <artifactid>rest-assured</artifactid>     <version>2.5.0</version> </dependency> <dependency>     <groupid>org.apache.httpcomponents</groupid>     <artifactid>httpclient</artifactid>     <version>4.5</version> </dependency>