java - 未找到 HikariCP LoggerFactory 类定义

Question

我已经从 http://search.maven.org/#search%7Cga%7C1%7Chikaricp 下载了 HikariCP JAR (第五行)并将其放置在我的构建路径中。如果你打电话

HikariDataSource ds = new HikariDataSource();

你得到了异常:

Exception in thread "main" java.lang.NoClassDefFoundError: org/slf4j/LoggerFactory
    at com.zaxxer.hikari.HikariConfig.<clinit>(HikariConfig.java:45)
    at com.josevemon.microserver.App.<init>(App.java:41)
    at com.josevemon.microserver.App.main(App.java:16)
Caused by: java.lang.ClassNotFoundException: org.slf4j.LoggerFactory
    at java.net.URLClassLoader$1.run(URLClassLoader.java:372)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:360)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    ... 3 more

根据此处的评论:https://stackoverflow.com/a/25114022/555690 ,

I don't know what environment you're developing in, IDE or whatever, but this is a simple classpath issue where the HikariCP jar is not in the classpath at runtime. Clearly it was in the path at compile time or you wouldn't have gotten this far.

因此 HikariCP 在编译时位于我的路径中，但不在运行时。那么，我如何在运行时获得它呢？我正在使用 Eclipse Luna。

Answer 1

您需要在类路径中包含以下 slf4j jar:

• slf4j-jdk14-1.7.10.jar
• slf4j-api-1.7.22.jar

我使用maven，因此通过将slf4j-jdk14-1.7.10.jar添加到我的pom文件中，它会自动添加slf4j-api-1.7.22.jar。根据您的情况，您可以从此处下载 jar 文件:

http://central.maven.org/maven2/org/slf4j/slf4j-jdk14/1.7.10/ http://central.maven.org/maven2/org/slf4j/slf4j-api/1.7.22/