Oozie時出現Exception in thread "main" java.lang.UnsupportedClassVersionError: com/mysql/jdbc/Driver : Unsupported major.minor version 52.0？

 

 

　　不多說，直接上干貨！

 

 

 

 

　　問題詳情

[hadoop@bigdatamaster oozie-4.1.0-cdh5.5.4]$ bin/ooziedb.sh create -sqlfile oozie.sql -run DB Connection

[hadoop@bigdatamaster oozie-4.1.0-cdh5.5.4]$ bin/ooziedb.sh create -sqlfile oozie.sql -run DB Connection
  setting CATALINA_OPTS="$CATALINA_OPTS -Xmx1024m"

Validate DB Connection
Exception in thread "main" java.lang.UnsupportedClassVersionError: com/mysql/jdbc/Driver : Unsupported major.minor version 52.0
    at java.lang.ClassLoader.defineClass1(Native Method)
    at java.lang.ClassLoader.defineClass(ClassLoader.java:800)
    at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
    at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
    at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
    at java.lang.Class.forName0(Native Method)
    at java.lang.Class.forName(Class.java:191)
    at org.apache.oozie.tools.OozieDBCLI.createConnection(OozieDBCLI.java:894)
    at org.apache.oozie.tools.OozieDBCLI.validateConnection(OozieDBCLI.java:901)
    at org.apache.oozie.tools.OozieDBCLI.createDB(OozieDBCLI.java:185)
    at org.apache.oozie.tools.OozieDBCLI.run(OozieDBCLI.java:129)
    at org.apache.oozie.tools.OozieDBCLI.main(OozieDBCLI.java:80)

 

 

 

 

 

 

 

解決辦法

　　原因： 

　　1、jdk7+老版5.0驅動com/mysql/jdbc/Driver  （同時，多試試幾個版本。mysql-connector-java-5.1.31-bin.jar  和 mysql-connector-java-5.1.21-bin.jar ）
　　2、jdk8+新版6.0驅動com/mysql/cj/jdbc/Driver

 　　對於這樣的mysql驅動包，怎么去下載，建議去http://mvnrepository.com/。當然你也可以去CSDN資源里去。這里不多贅述

  mysql-connector-java-5.1.21.jar

 

 

 

 

　

 

 

 

 

 

 

　　即可。

 

 

　　成功！

 

 

 

 

 

 

 

　　然后呢，大家也許還會出現如下問題：

Oozie安裝時放置Mysql驅動包的總結（網上最全）

 

Oozie時出現org.apache.oozie.service.ServiceException: E0103: Could not load service classes, Cannot load JDBC driver class 'com.mysql.jdbc.Driver'

 

Oozie時bin/oozied.sh start或bin/oozied.sh run出現Bootstrap進程無法啟動，http://bigdatamaster:11000/oozie界面也無法打開？E0103: Could not load service classes,

java.lang.ClassNotFoundException: Class org.apache.oozie.ser

 

Oozie時bin/oozied.sh start或bin/oozied.sh run出現Bootstrap進程無法啟動，http://bigdatamaster:11000/oozie界面也無法打開？

 

Oozie時出現Caused by: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure？

 

Oozie時出現Exception in thread "main" java.lang.UnsupportedClassVersionError: com/mysql/jdbc/Driver : Unsupported major.minor version 52.0？

 

CDH版本的oozie安裝執行bin/oozie-setup.sh prepare-war，沒生成oozie.war?