org.springframework.boot.web.support does not exist

Question

I\'m changing build systems from maven to gradle for a spring boot project. I get this stacktrace

19:03:08: Executing external task \'bootRun\'...
/home/dac/proj         


        

Answer 1

It's probably an import issue in your source code - your Gradle build script uses Spring Boot 1.3.6.RELEASE in which SpringBootServletInitializer has the following fully qualified name:

org.springframework.boot.context.web.SpringBootServletInitializer 

Your Maven pom.xml, however, uses Spring Boot 1.4.0.BUILD-SNAPSHOT, in which the package name was changed to:

org.springframework.boot.web.support.SpringBootServletInitializer

So if you go to your SampleJettyJspApplication and change the import to

import org.springframework.boot.context.web.SpringBootServletInitializer;

everything should be fine.

Alternatively, you could alter your Gradle build script to import 1.4.0.BUILD-SNAPSHOT, but that would require adding Spring's snapshot repository:

buildscript {
    repositories {
        maven.url "http://repo.spring.io/snapshot"
        mavenCentral()
    }

    dependencies {
        classpath("org.springframework.boot:spring-boot-gradle-plugin:1.4.0.BUILD-SNAPSHOT")
    }
}

Answer 2

org.springframework.boot.web.support.SpringBootServletInitializer 

is deprecated.

use below instead:

org.springframework.boot.web.servlet.support.SpringBootServletInitializer

Answer 3

You should use the same spring boot version 1.4.0.BUILD-SNAPSHOT as in maven. org.springframework.boot.web.support.SpringBootServletInitializer was introduced since 1.4.0 that's why gradle cannot find it.

Answer 4

You are using org.springframework.boot.context.web.SpringBootServletInitializer this is deprecated. Instead:

Use

org.springframework.boot.web.support.SpringBootServletInitializer

For SpringBoot 2.0

org.springframework.boot.web.servlet.support.SpringBootServletInitializer