问题描述
我正在尝试从Python提示符下使用JayDeBeApi连接到MysqL数据库。下面是我正在使用的代码段:
"**Python 2.7.16 (default,Oct 10 2019,22:02:15)
[GCC 8.3.0] on linux2
Type "help","copyright","credits" or "license" for more information.
>>> import jpype
>>> import jaydebeapi
>>> import os
>>> jar = "/tmp/:/usr/share/java/"
>>> os.environ['JAVA_HOME'] ="/usr/lib/jvm/adoptopenjdk-8-hotspot-amd64"
>>> os.environ['CLAsspATH'] =jar
>>> args='-Djava.class.path=%s' % jar
>>> jvm_path = jpype.getDefaultJVMPath()
>>> jpype.startJVM(jvm_path,args)
/home/aarpan_roy/.local/lib/python2.7/site-packages/jpype/_core.py:218: UserWarning:
-------------------------------------------------------------------------------
Deprecated: convertStrings was not specified when starting the JVM. The default
behavior in JPype will be False starting in JPype 0.8. The recommended setting
for new code is convertStrings=False. The legacy value of True was assumed for
this session. If you are a user of an application that reported this warning,please file a ticket with the developer.
-------------------------------------------------------------------------------
""")
>>> database_host='<MysqL DB HOST>'
>>> database_user='<MysqL DB USER>'
>>> database_password='<MysqL DB PASSWORD>'
>>> database_port='<MysqL DB PORT>'
>>> database_db='<MysqL DB DATABASE>'
>>> jclassname = "com.MysqL.jdbc.Driver"
>>> url = "jdbc:MysqL://{host}:{port}/{database}".format(host=database_host,port=database_port,database=database_db)
>>> driver_args = [url,database_user,database_password]
>>> jars = ["/tmp/mysql-connector-java-5.1.45.jar","/usr/share/java/MysqL.jar"]
>>> libs = None
>>> cnx = jaydebeapi.connect(jclassname,url,driver_args,jars=jars,libs=libs)**
但是,我遇到了以下错误:
“追踪(最近一次致电过去):
文件“”,第1行,位于
连接中的文件“
您能帮我了解我在哪里缺少什么,这里需要纠正什么吗? 预先感谢。
解决方法
我在您指定的类路径上找不到正确的mysql驱动程序JAR。因此,您将得到所看到的ClassNotFoundException。尝试指定确切的路径。