After maven began to study gradle and ran into a problem, it is impossible to make a project deployment (gradle 4.3.1, tomcat 8.5.15, IDEA ULTIMATE 2017.2).

On the maven, the project was deployed to %tomcat-home%\webapps , everything was simple.

With gradle it is somehow harder somehow, I try to do it using the popular plugin bmuschko-gradle-tomcat-plugin

gradle build - everything is ok

gradle tomcatRun -> Task: tomcatRun FAILED

Google did not solve the question, so I appeal here.

What is the problem, who can show how it should be?

build.gradle

 buildscript { repositories { jcenter() } dependencies { classpath 'com.bmuschko:gradle-tomcat-plugin:2.4.1' } } apply plugin : 'java' apply plugin : 'war' apply plugin : 'com.bmuschko.tomcat' compileJava.options.encoding = 'UTF-8' tasks.withType(JavaCompile) { options.encoding = 'UTF-8' } repositories { mavenCentral() } dependencies { def tomcatVersion = '8.5.15' tomcat "org.apache.tomcat.embed:tomcat-embed-core:${tomcatVersion}", "org.apache.tomcat.embed:tomcat-embed-logging-juli:8.5.2", "org.apache.tomcat.embed:tomcat-embed-jasper:${tomcatVersion}" testImplementation 'junit:junit:4.12' providedCompile "javax.servlet:javax.servlet-api:3.1.0" testCompile group: 'org.hamcrest', name: 'hamcrest-all', version: '1.3' testCompile group: 'org.mockito', name: 'mockito-all', version: '1.8.4' } tomcat { httpProtocol = 'org.apache.coyote.http11.Http11Nio2Protocol' ajpProtocol = 'org.apache.coyote.ajp.AjpNio2Protocol' }

console

  E:\DEV\Project\art-box>gradle build BUILD SUCCESSFUL in 1s 5 actionable tasks: 5 up-to-date ............................... E:\DEV\Project\art-box>gradle tomcatRun ..... > Task :tomcatRun FAILED Gradle now uses separate output directories for each JVM language, but this build assumes a single directory for all classes from a source set. This behaviour has been deprecated and is scheduled to be removed in Gradle 5. 0 Protocol handler instantiation failed java.lang.ClassNotFoundException: org.apache.coyote.http11.Http11Protocol at java.net.URLClassLoader.findClass(URLClassLoader.java:381) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) .............................. FAILURE: Build failed with an exception. * What went wrong: Execution failed for task ':tomcatRun'. > An error occurred starting the Tomcat server. * Try: Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. * Get more help at https://help.gradle.org BUILD FAILED in 1s 3 actionable tasks: 1 executed, 2 up-to-date

    1 answer 1

    You need to copy servlet-api.jar from the Tomkat libraries to:

     C:\Program Files\Java\jdk1.8.0_92\jre\lib\ext

    Compile. Here is the working configuration (the project is deposited in the local running tomkata instance):

      buildscript { repositories { mavenCentral() jcenter() } dependencies { classpath 'com.bmuschko:gradle-tomcat-plugin:2.4.1' } } apply plugin: 'java' apply plugin: 'war' apply plugin: 'com.bmuschko.tomcat' compileJava.options.encoding = 'UTF-8' tasks.withType(JavaCompile) { options.encoding = 'UTF-8' } repositories { mavenCentral() jcenter() } def tomcatVersion = '8.5.15' dependencies { testImplementation 'junit:junit:4.12' tomcat "org.apache.tomcat.embed:tomcat-embed-core:${tomcatVersion}", "org.apache.tomcat.embed:tomcat-embed-logging-juli:8.5.2", "org.apache.tomcat.embed:tomcat-embed-jasper:${tomcatVersion}" testCompile group: 'org.hamcrest', name: 'hamcrest-all', version: '1.3' testCompile group: 'org.mockito', name: 'mockito-all', version: '1.8.4' } tomcat { httpProtocol = 'org.apache.coyote.http11.Http11Nio2Protocol' ajpProtocol = 'org.apache.coyote.ajp.AjpNio2Protocol' }
    • Only he is still weird. Being launched, the TomkatRan is started up by the displayed link in the browser, but TomkatStop, although Tomkat stops, but does not stop the previous task in the Idea (Community), perhaps this is its glitch. But the task is successfully extinguished by pressing the stop :) - Mykola Khazanovych