java.lang.NoClassDefFoundError: ch/qos/logback/core/joran/spi/JoranException
我正在尝试通过Java连接到我的Cassandra实例。我为cqlsh创建了一个'demo‘keyspace，并在java程序中创建了一个表。代码如下：
使用的Jars：
- slf4j.api-1.6.1
- cassandra-all-2.1.2
System.out.println("====================Before CassandraConnection { public static void main(String[] args){ String ipAddress="127.0.0.1"；String keySpace=“String[]”；集群集群；会话；公共类插入(KeySpace)；公共插入“)；String cqlInsertStmt="insert insert users (姓氏，年龄，城市，电子邮件，名字) values“+"('Gopalan',32，'Paramakkudi'，'murugan@gmail.com'，'Murugan') "；session.execute(cqlInsertStmt)；String cqlSelectStmt="select * from users"；ResultSet resultSet=session.execute(cqlSelectStmt)；System.out.println("=================After insert")；对于(行: resultSet){ System.out.format(“%s%s%d%s%s \n"，row.getString(”名字“)，row.getString(”姓氏“)，row.getInt(”年龄“)，row.getString(”城市“)，row.getString(”电子邮件“))；} System.out.println("=================After更新”)；} }
我收到以下错误：
Failed to instantiate SLF4J LoggerFactory
Reported exception:
java.lang.NoClassDefFoundError: ch/qos/logback/core/joran/spi/JoranException
at org.slf4j.LoggerFactory.bind(LoggerFactory.java:150)
at org.slf4j.LoggerFactory.performInitialization(LoggerFactory.java:124)
at org.slf4j.LoggerFactory.getILoggerFactory(LoggerFactory.java:412)
at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:357)
at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:383)
at com.datastax.driver.core.Cluster.<clinit>(Cluster.java:60)
at CassandraConnection.main(CassandraConnection.java:21)
Caused by: java.lang.ClassNotFoundException: ch.qos.logback.core.joran.spi.JoranException
at java.net.URLClassLoader$1.run(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
... 7 more
Exception in thread "main" java.lang.NoClassDefFoundError: ch/qos/logback/core/joran/spi/JoranException
at org.slf4j.LoggerFactory.bind(LoggerFactory.java:150)
at org.slf4j.LoggerFactory.performInitialization(LoggerFactory.java:124)
at org.slf4j.LoggerFactory.getILoggerFactory(LoggerFactory.java:412)
at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:357)
at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:383)
at com.datastax.driver.core.Cluster.<clinit>(Cluster.java:60)
at CassandraConnection.main(CassandraConnection.java:21)
Caused by: java.lang.ClassNotFoundException: ch.qos.logback.core.joran.spi.JoranException
at java.net.URLClassLoader$1.run(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
... 7 more回答 2
Stack Overflow用户
发布于 2017-02-13 21:31:40
Stack Overflow用户
发布于 2018-02-12 18:08:03
此问题的根本原因是CLASSPATH中不提供所需的jars。请添加以下依赖项-它们将解决您的问题。
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-classic</artifactId>
<version>1.2.3</version>
</dependency>
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-classic</artifactId>
<version>1.2.3</version>
<exclusions>
<exclusion>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-core</artifactId>
<version>1.2.3</version>
</dependency>https://stackoverflow.com/questions/42205247
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