add: 增加Jenkinsfile

src/main/java/hello/Jenkinsfile

@@ -0,0 +1,30 @@
+pipeline {
+    agent any
+
+    tools {
+        // Install the Maven version configured as "M3" and add it to the path.
+        maven "maven"
+    }
+
+    stages {
+        stage('Get code') {
+            steps {
+                git url: 'https://gitea.xadocker.cn/resource/springboot-demo.git', branch: 'main', credentialsId: '867be6fa-88b1-4715-bcd6-3b2ebe671138'
+            }
+        }
+        stage("Build") {
+            steps {
+                sh "mvn -Dmaven.test.failure.ignore=true clean package"
+            }
+            post {
+                // If Maven was able to run the tests, even if some of the test
+                // failed, record the test results and archive the jar file.
+                success {
+                    // junit '**/target/surefire-reports/TEST-*.xml'
+                    archiveArtifacts 'target/*.jar'
+                }
+            }
+        }
+    }
+}
+