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Java NoClassDefFoundError:Spring/REST教程中的MappingJackson2HttpMessageConverter_Java_Spring_Rest_Spring Mvc - Fatal编程技术网

Java NoClassDefFoundError:Spring/REST教程中的MappingJackson2HttpMessageConverter

Java NoClassDefFoundError:Spring/REST教程中的MappingJackson2HttpMessageConverter,java,spring,rest,spring-mvc,Java,Spring,Rest,Spring Mvc,我正在尝试离线构建和运行本教程“使用Spring设计和实现RESTfulWeb服务”,使用本地存储库存储我的依赖项。这是我的gradle.build文件: apply plugin: 'java' apply plugin: 'eclipse' apply plugin: 'idea' repositories { flatDir { dirs 'lib' } } dependencies { compile 'org.springframework:spring-core:4.0.

我正在尝试离线构建和运行本教程“使用Spring设计和实现RESTfulWeb服务”,使用本地存储库存储我的依赖项。这是我的gradle.build文件:

apply plugin: 'java'
apply plugin: 'eclipse'
apply plugin: 'idea'

repositories {
flatDir { dirs 'lib' }
}

dependencies {
    compile 'org.springframework:spring-core:4.0.6.RELEASE'
    compile 'org.springframework:spring-beans:4.0.6.RELEASE'
    compile 'org.springframework:spring-context:4.0.6.RELEASE'
    compile 'org.springframework:spring-web:4.0.6.RELEASE'
    compile 'org.springframework:spring-webmvc:4.0.6.RELEASE'
    compile 'com.jayway.jsonpath:json-path:0.8.1'

    compile 'org.slf4j:slf4j-api:1.7.5'
    runtime 'org.slf4j:slf4j-jdk14:1.7.5'
    // {!begin jackson}
    runtime 'com.fasterxml.jackson.core:jackson-core:2.4.2'
    runtime 'com.fasterxml.jackson.databind:jackson-databind:2.4.2'
    runtime 'com.fasterxml.jackson.annotation:jackson-annotations:2.4.2'
    // {!end jackson}
    // {!begin jaxb}
    runtime 'javax.xml.bind:jaxb-api:2.2.9'
    // {!end jaxb}
    // {!begin commons}
    runtime 'org.apache.commons:commons-logging:1.1.1'
    // {!end commons}

    testCompile 'org.springframework:spring-test:4.0.6.RELEASE'
    testCompile 'junit:junit:4.+'
    testCompile "org.mockito:mockito-all:1.9.5"
    testCompile "org.hamcrest:hamcrest-all:1.3"

    testCompile 'javax.servlet:javax.servlet-api:3.0.1'
}

task wrapper(type: Wrapper) {
    gradleVersion = '1.6'
}
某些测试失败,出现以下错误:

java.lang.NoClassDefFoundError: Could not initialize class org.springframework.http.converter.json.MappingJackson2HttpMessageConverter

此类位于spring-web-4.0.6.RELEASE.jar中,它位于依赖项中。我缺少什么?

NoClassDefFoundError
表示该类在编译时位于类路径上,但在运行时丢失。检查您的运行时类路径。请添加整个stacktrace。我不确定,但我认为缺少一个类,
MappingJackson2HttpMessageConverter
需要这个类。这个错误意味着JVM已经尝试加载所提到的类,但失败了。如果重新运行测试,您看到的第一条提到该类的异常消息是什么?