update jenkins to pull nexus

Jenkinsfile

@@ -76,12 +76,17 @@ pipeline {
 
         stage("Pull from Nexus"){
             steps{
+                script{
+                     pom = readMavenPom file: "pom.xml";
+                    GROUP_ID=pom.groupId
+                    ARTIFACT_ID=pom.artifactId
+                    LOCAL_FILE="spring-boot-complete-0.0.1-SNAPSHOT.jar"
 
-            script{
-                 pom = readMavenPom file: "pom.xml";
-                sh 'curl http://${NEXUS_URL/nexus/service/local/artifact/maven/redirect?r=${NEXUS_REPOSITORY}&g=${pom.groupId}&a=${pom.artifactId}&v=${pom.version}&p=jar'
-
-            }
+                    NEXUS_RESOLVE_URL="${NEXUS_BASE_URL}artifact/maven/resolve?g=${GROUP_ID}a=${ARTIFACT_ID}&r=${NEXUS_REPOSITORY}&v=${NEXUS_VERSION}"
+                    REPOSITORY_LOCAL_PATH=`curl -s "${NEXUS_RESOLVE_URL}" | xmllint --xpath "//artifact-resolution/data/repositoryPath/text()" -`
+                    ARTIFACT_DOWNLOAD_URL="${NEXUS_BASE_URL}/repositories/${NEXUS_REPOSITORY}/content${REPOSITORY_LOCAL_PATH}"
+                    curl -o "${LOCAL_FILE}" "${ARTIFACT_DOWNLOAD_URL}"
+                }
         }
         }
     }