4

我正在尝试将 cassandra 与 Hector 连接起来:

public class Main {
    public static void main(String[] args) {
        StringSerializer stringSerializer = StringSerializer.get();
        Cluster cluster = HFactory.getOrCreateCluster("Test Cluster", "localhost:9160");
        Keyspace keyspace =  HFactory.createKeyspace("Keyspace1", cluster);
        Mutator<String> mutator = HFactory.createMutator(keyspace, stringSerializer);
        mutator.insert("jsmith", "Standard1", HFactory.createStringColumn("first", "John"));
    }

}

问题:

SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.
Exception in thread "main" java.lang.NoClassDefFoundError: org/slf4j/impl/StaticLoggerBinder
    at org.slf4j.LoggerFactory.getSingleton(LoggerFactory.java:230)
    at org.slf4j.LoggerFactory.bind(LoggerFactory.java:121)
    at org.slf4j.LoggerFactory.performInitialization(LoggerFactory.java:112)
    at org.slf4j.LoggerFactory.getILoggerFactory(LoggerFactory.java:275)
    at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:248)
    at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:261)
    at me.prettyprint.cassandra.service.AbstractCluster.<init>(AbstractCluster.java:43)
    at me.prettyprint.cassandra.service.AbstractCluster.<init>(AbstractCluster.java:57)
    at me.prettyprint.cassandra.service.ThriftCluster.<init>(ThriftCluster.java:17)
    at me.prettyprint.hector.api.factory.HFactory.createCluster(HFactory.java:112)
    at me.prettyprint.hector.api.factory.HFactory.getOrCreateCluster(HFactory.java:104)
    at me.prettyprint.hector.api.factory.HFactory.getOrCreateCluster(HFactory.java:96)
    at javaapplication1.Main.main(Main.java:25)
Caused by: java.lang.ClassNotFoundException: org.slf4j.impl.StaticLoggerBinder
    at java.net.URLClassLoader$1.run(URLClassLoader.java:276)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:265)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:264)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:325)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:294)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:270)
    ... 13 more
Java Result: 1

我该如何解决?

我对赫克托和卡桑德拉的耐心已经到了最后,我试图联系并失败了。我运行 twissjava 示例并且它可以工作,但是当我扩展主类以进行我自己的测试时它不会运行。

4

3 回答 3

3

这个问题”记录在 wiki 上的“SLF4J in Hector”页面

短版:您需要添加一个实现 SLF4J api 的库。

于 2011-02-24T09:08:54.707 回答
2

你用的是什么开发环境?

我在netbeans中遇到了同样的问题。以下是您需要的文件(但请注意您使用的版本)。

log4j 下载:http ://www.findjar.com/jar/log4j/log4j/1.2.11/log4j-1.2.11.jar.html slf4j 下载:http ://www.findjar.com/jar/de/huxhorn /lilith/de.huxhorn.lilith.slf4j/0.9.35/de.huxhorn.lilith.slf4j-0.9.35.jar.html

ps 如果这些版本不起作用,请在 findjar 网站上搜索正确的版本,但我将这两个与 cassandra 1.0.7 和 hector 1.0.2 一起使用,它们对我有用。

于 2012-02-17T15:13:31.003 回答
1

您必须将 Hector 依赖项(如 SLF4j、Log4j)添加到您的类路径中,然后您的问题将解决..我对您有完全相同的问题,我的问题也解决了..对不起我的英语..:D

于 2011-05-30T14:46:59.300 回答