java和slf4j的一些问题使用idea创建项目并且没问题。但是，如果我尝试使用gradle制作jar，我遇到了一些问题。
build.gradle
group'test.test' version'1.0-SNAPSHOT' apply plugin：'java' sourceCompatibility = 1.8 存储库{ mavenCentral（）} 依赖关系{ testCompile组：'junit'，名称：'junit'，版本：' 4.11' compile'org.slf4j：slf4j-api：1.7.20' compile'ch.qos.logback：logback-classic：1.1.7' } $ b $ jar { manifest {属性'Main-Class'：'Test'} }Test.java
import org.slf4j.Logger; 导入org.slf4j.LoggerFactory; public class Test { private static final Logger LOGGER = LoggerFactory.getLogger（Test.class）; public static void main（String [] args）{ LOGGER.info（info）; $ / code $ / pre $ b $终端： gradle build java -jar target / HttpServer-1.0-SNAPSHOT.jar输出：
线程main中的异常java.lang.NoClassDefFoundError： org / slf4j / LoggerFactory at HttpServerHH.Main。< clinit>（Main.java:15）导致：java.lang.ClassNotFoundException：org.slf4j.LoggerFactory $ b $在java。 net.URLClassLoader.findClass（URLClassLoader.java:381）$ b $在java.lang.ClassLoader.loadClass（ClassLoader.java:424）在sun.misc.Launcher $ AppClassLoader.loadClass（Launcher.java： 331） at java.lang.ClassLoader.loadClass（ClassLoader.java:357） ... 1 more我试图使用gradle / maven（mvn package）相同的问题。在classpath中找不到Logger和LoggerFactory的一些原因。
解决方案感谢Michael回忆有关胖子的事情。在您的评论尝试谷歌：gradle构建脂肪罐，并修改后我的build.gradle
jar {来自{ configurationspile.collect { it.isDirectory（）？它：zipTree（它）} } 清单{属性'Main-Class'：'Test'} }
some problems with java and slf4j Made project using idea and it is ok. But in case I try to make jar with gradle I have some problems.
build.gradle
group 'test.test' version '1.0-SNAPSHOT' apply plugin: 'java' sourceCompatibility = 1.8 repositories { mavenCentral() } dependencies { testCompile group: 'junit', name: 'junit', version: '4.11' compile 'org.slf4j:slf4j-api:1.7.20' compile 'ch.qos.logback:logback-classic:1.1.7' } jar { manifest { attributes 'Main-Class': 'Test' } }Test.java
import org.slf4j.Logger; import org.slf4j.LoggerFactory; public class Test { private static final Logger LOGGER = LoggerFactory.getLogger(Test.class); public static void main(String[] args) { LOGGER.info("info"); } }Terminal:
gradle build java -jar target/HttpServer-1.0-SNAPSHOT.jarOutput:
Exception in thread "main" java.lang.NoClassDefFoundError: org/slf4j/LoggerFactory at HttpServerHH.Main.<clinit>(Main.java:15) Caused by: java.lang.ClassNotFoundException: org.slf4j.LoggerFactory at java.URLClassLoader.findClass(URLClassLoader.java:381) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ... 1 moreI tried to use gradle/maven (mvn package) the same problem. Some reasons it cannot find Logger and LoggerFactory in classpath.
解决方案Thanks Michael for remembering about fat jar. After your comment tried to google: "gradle build fat jar" and after it modified my build.gradle
jar { from { configurationspile.collect { it.isDirectory() ? it : zipTree(it) } } manifest { attributes 'Main-Class': 'Test' } }
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引起：java.lang.ClassNotFoundException：org.slf4j.LoggerFactory
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