使用eclipse WTP忽略分级可传递项目依赖关系

Question

我有一个war项目（项目a）对另一个包含共享库的项目（项目B）有编译依赖关系，但是我不希望在WTP部署中包含项目B的可传递依赖关系。

当我使用gradle生成war文件时，来自Project B的可传递依赖项会被忽略，但WTP一直将所有库复制到/WEB-INF/lib目录中，因此我遇到了类加载器问题。

我试图在依赖关系和配置级别上使用transitive=false忽略Project B中的可传递依赖关系，并使用exclude忽略特定的依赖关系，但到目前为止没有成功，而且我找不到我做错了什么。

提前道谢。

项目A

apply plugin: 'java'
apply plugin: 'eclipse'
apply plugin: 'eclipse-wtp'
apply plugin: 'war'

repositories {
    mavenLocal()
    mavenCentral()
    maven { // ext release
        url "${artifactory_contextUrl}/ext-release-local"
        credentials {
            username = "${artifactory_user}"
            password = "${artifactory_password}"
        }
    }
    maven { // libs release
        url "${artifactory_contextUrl}/libs-release-local"
        credentials {
            username = "${artifactory_user}"
            password = "${artifactory_password}"
        }
    }
    maven { // libs snapshot
        url "${artifactory_contextUrl}/libs-snapshot-local"
        credentials {
            username = "${artifactory_user}"
            password = "${artifactory_password}"
        }
    }
    maven { // SpringSource Enterprise Bundle Repository - SpringSource Bundle Releases
        url "http://repository.springsource.com/maven/bundles/release" }
    maven { // SpringSource Enterprise Bundle Repository - External Bundle Releases
        url "http://repository.springsource.com/maven/bundles/external" }
    maven { // SpringSource Enterprise Bundle Repository - SpringSource Library Releases
        url "http://repository.springsource.com/maven/libraries/release" }
    maven { // SpringSource Enterprise Bundle Repository - External Library Releases
        url "http://repository.springsource.com/maven/libraries/external" }
}

group = 'com.thisproject'

sourceCompatibility = '1.6'

version = '1.6'

war {
    baseName = 'ROOT'
    archiveName = baseName+'.'+extension
    destinationDir = file('build/')
}

task deployToFolder(dependsOn: 'war') << {
    copy {
        from war.archivePath
        into "${deployFolder}"
    }
}

task jenkinsTest{
    inputs.files test.outputs.files
    doLast{
        def timestamp = System.currentTimeMillis()
        test.testResultsDir.eachFile { it.lastModified = timestamp }
    }
}

build.dependsOn(jenkinsTest)

configurations {
    runtime.exclude group: 'commons-validator', module: 'commons-validator'
    runtime {
        transitive = false
    }
}

dependencies{
    providedCompile group: 'log4j', name: 'log4j', version: '1.2.16'
    providedCompile group: 'org.springframework.security', name: 'org.springframework.security.web', version: '3.1.1.RELEASE'
    providedCompile group: 'org.springframework.security', name: 'spring-security-config', version: '3.1.1.RELEASE'
    providedCompile group: 'org.springframework.social', name: 'spring-social-web', version: '1.0.2.RELEASE'
    providedCompile group: 'org.springframework.social', name: 'spring-social-core', version: '1.0.2.RELEASE'
    providedCompile group: 'org.springframework.social', name: 'spring-social-facebook', version: '1.0.1.RELEASE'
    providedCompile group: 'org.springframework.social', name: 'spring-social-twitter', version: '1.0.2.RELEASE'
    providedCompile group: 'spring-social-google', name: 'spring-social-google', version: '1.0'
    providedCompile group: 'jstl', name: 'jstl', version: '1.2'
    providedCompile group: 'org.springframework.security', name:'org.springframework.security.taglibs', version:'3.1.1.RELEASE'

    compile(project(':projectB')) {
        exclude module:'commons-validator'
            transitive = false
    }

    providedCompile group: 'javax.servlet', name: 'servlet-api', version: '2.5'
    providedCompile group: 'javax.servlet', name: 'jsp-api', version: '2.0'
    providedCompile group: 'org.springframework', name: 'org.springframework.transaction', version: '3.1.1.RELEASE'
    providedCompile group: 'commons-validator', name: 'commons-validator', version: '1.2.0'
    providedCompile group: 'commons-lang', name: 'commons-lang', version: '2.4'

    providedCompile group: 'javax.validation', name: 'validation-api', version: '1.0.0.GA'
    providedCompile 'javax.persistence:persistence-api:1.0.2'
    providedCompile group: 'org.hibernate', name: 'hibernate-core', version: '3.6.10.Final'
}

eclipse {
    project { natures 'org.springsource.ide.eclipse.gradle.core.nature' }
    wtp {
        component { deployName = 'ROOT' }
        facet {
            facet name: 'jst.web', version: '2.5'
            facet name: 'jst.java', version: '1.6'
        }
    }
}

compileJava { 
  options.encoding = "UTF-8" 
}

项目B

apply plugin: 'java'
apply plugin: 'eclipse'
apply plugin: 'maven'

repositories {
    mavenLocal()
    mavenCentral()
    maven { // ext release
        url "${artifactory_contextUrl}/ext-release-local"
        credentials {
            username = "${artifactory_user}"
            password = "${artifactory_password}"
        }
    }
    maven { // libs release
        url "${artifactory_contextUrl}/libs-release-local"
        credentials {
            username = "${artifactory_user}"
            password = "${artifactory_password}"
        }
    }
    maven { // libs snapshot
        url "${artifactory_contextUrl}/libs-snapshot-local"
        credentials {
            username = "${artifactory_user}"
            password = "${artifactory_password}"
        }
    }
    maven { // SpringSource Enterprise Bundle Repository - SpringSource Bundle Releases
        url "http://repository.springsource.com/maven/bundles/release"
    }
    maven { // SpringSource Enterprise Bundle Repository - External Bundle Releases
        url "http://repository.springsource.com/maven/bundles/external"
    }
    maven { // SpringSource Enterprise Bundle Repository - SpringSource Library Releases
        url "http://repository.springsource.com/maven/libraries/release"
    }
    maven { // SpringSource Enterprise Bundle Repository - External Library Releases
        url "http://repository.springsource.com/maven/libraries/external"
    }
}

group = 'com.thisproject'

sourceCompatibility = '1.6'

version = '1.7.26-SNAPSHOT'

jar {
    manifest {
        attributes 'Implementation-Title': 'Gradle Quickstart', 'Implementation-Version': version
    }
    destinationDir = file('build/')
}

task deployToFolder(dependsOn: 'jar') << {
    copy {
        from jar.archivePath
        into "${deployFolder}"
    }
}

task sourcesJar(type: Jar, dependsOn:classes) {
    classifier = 'sources'
    from sourceSets.main.allSource
}

artifacts {
    archives sourcesJar
}

dependencies{
    compile group: 'log4j', name: 'log4j', version: '1.2.16'
    compile group: 'commons-logging', name: 'commons-logging', version: '1.1.1'
    compile group: 'com.lowagie', name: 'itext', version: '2.0.8'
    compile group: 'commons-codec', name: 'commons-codec', version: '1.6'
    compile group: 'commons-lang', name: 'commons-lang', version: '2.4'
    compile group: 'commons-io', name: 'commons-io', version: '1.4'
    compile group: 'commons-validator', name: 'commons-validator', version: '1.2.0'
    compile group: 'org.apache.axis', name: 'axis-jaxrpc', version: '1.4'
    compile group: 'com.esendex', name: 'esendex.sdk', version: '1.0'
    compile group: 'org.apache.lucene', name: 'lucene-core', version: '1.9.1'
    compile group: 'org.apache.lucene', name: 'lucene-snowball', version: '1.9.1'
    compile group: 'com.sun.jersey', name: 'jersey-client', version: '1.12'
    compile group: 'com.sun.jersey', name: 'jersey-json', version: '1.12'
    compile group: 'com.sun.jersey.ri', name: 'jax-rs-ri', version: '1.12'
    compile group: 'org.codehaus.jackson', name: 'jackson-mapper-asl', version: '1.9.2'
    compile group: 'org.hibernate', name: 'hibernate-core', version: '3.6.10.Final'
    compile group: 'org.hibernate', name: 'hibernate-validator', version: '4.3.1.Final'
    compile group: 'org.springframework', name: 'org.springframework.aop', version: '3.1.1.RELEASE'
    compile group: 'org.springframework', name: 'org.springframework.beans', version: '3.1.1.RELEASE'
    compile group: 'org.springframework', name: 'org.springframework.context', version: '3.1.1.RELEASE'
    compile group: 'org.springframework', name: 'org.springframework.jdbc', version: '3.1.1.RELEASE'
    compile group: 'org.springframework', name: 'org.springframework.orm', version: '3.1.1.RELEASE'
    compile group: 'org.springframework', name: 'org.springframework.oxm', version: '3.1.1.RELEASE'
    compile group: 'org.springframework', name: 'org.springframework.transaction', version: '3.1.1.RELEASE'
    compile group: 'org.springframework', name: 'org.springframework.web.servlet', version: '3.1.1.RELEASE'
    compile group: 'spring-social-jpa', name: 'spring-social-jpa', version: '0.0.1'
    compile group: 'javax.xml.bind', name: 'jsr173_api', version: '1.0'
    compile group: 'javax.validation', name: 'validation-api', version: '1.0.0.GA'
    compile group: 'com.googlecode.libphonenumber', name: 'libphonenumber', version: '4.1'
    compile group: 'axis', name: 'axis', version: '1.4'
    compile group: 'org.apache.commons', name: 'commons-email', version: '1.2'
    compile group: 'org.apache.tomcat', name: 'catalina', version: '6.0.35'
    compile group: 'javax.servlet', name: 'servlet-api', version: '2.5'
    compile group: 'javax.servlet', name: 'jsp-api', version: '2.0'
    compile group: 'org.springframework.security', name: 'org.springframework.security.web', version: '3.1.1.RELEASE'
    compile group: 'commons-httpclient', name: 'commons-httpclient', version: '3.0.1'
    compile group: 'net.sf.opencsv', name: 'opencsv', version: '2.0'

    testCompile 'junit:junit:4.11'
    testCompile group: 'org.springframework', name: 'org.springframework.test', version: '3.1.1.RELEASE'
    testCompile 'mysql:mysql-connector-java:5.1.22'
    testCompile group: 'org.hibernate', name: 'hibernate-core', version: '3.6.10.Final'
    testCompile group: 'org.hibernate', name: 'hibernate-entitymanager', version: '3.6.10.Final'
    testCompile 'org.hibernate:hibernate-validator:4.3.1.Final'

    compile(group: 'com.paypal.sdk', name: 'merchantsdk', version: '2.2.98')
    compile(group: 'com.paypal.sdk', name: 'paypal-core', version: '1.1.1')
}

compileJava { 
  options.encoding = "UTF-8" 
}

Answer 1

经过一个巨大的搜索通过网络和挖掘了这么多梯度和WTP的东西，我能够得到这个工作。基本上，有三种方法可以忽略WTP deploy目录中的依赖项（或者我只知道其中的三种！）。

1.将传递性设置为false
正如你在问题中提到的，语法如下：

compile('group.id:jar.name:1.0') {transitive = false}
runtime('group.id:jar.name:1.0') {transitive = false}

这将防止依赖的JAR被添加到最终WTP目录中。

providedCompile 'group.id:jar.name:1.0'
providedRuntime 'group.id:jar.name:1.0'

3.黑！！
最有趣的部分来了。如果以上这些都不起作用怎么办？我在STS jira上找到了这条线，这是关于相同问题，并指出了这个解决方案，它对我不起作用，但给了我一个线索，让我自己做如下黑。在构建脚本中，我添加了以下代码来手动忽略相关性：

subprojects { 
    project.afterEvaluate {
        eclipse.classpath.file.withXml {
            it.asNode().'classpathentry'.each { entry ->
                def path = [e-mail]()
                if (path.contains('your-jar-to-ignore')) {
                    entry.attributes.each { attr ->
                        if ([e-mail]('org.eclipse.jst.component.dependency')) {
                            entry.remove(attr)
                        }
                    }
                }
            }
        }
    }
}

它侵入了生成.classpath文件（由gradle完成）的过程，并阻止它向指定的JAR添加依赖属性。
希望这对登陆此页面的人有所帮助，但我真的认为Eclipse或Gradle的人应该解决这个问题，因为它非常令人沮丧。