CrystalClear报告错误[219] [池管理器]无法加载指定的驱动程序: null
CrystalClear报告错误[219] [池管理器]无法加载指定的驱动程序: null
提问于 2018-05-13 16:37:50
当从eclipse启动java应用程序时，我们能够很好地运行水晶报告。
但是，当它已经部署时，在运行报告时会发生以下情况。
[CC,TRACE] Report Error [225] The DB connection to "jdbc:inetora:cs-v-oracx4sd1.champ.aero:1521:CX4SD111?logging=true" failed (see crystalclear.properties): [Pool Manager] Cannot load specified driver: null null.
[CC,TRACE] at com.inet.report.b1.a(Unknown Source)
[CC,TRACE] at com.inet.report.b1.y(Unknown Source)
[CC,TRACE] at com.inet.report.b1.q(Unknown Source)
[CC,TRACE] at com.inet.report.b1.run(Unknown Source)
[CC,TRACE] at com.inet.report.zy.h$a.run(Unknown Source)
[CC,TRACE] Caused by: Report Error [219] [Pool Manager] Cannot load specified driver: null null
[CC,TRACE] at com.inet.report.Engine.a(Unknown Source)
[CC,TRACE] at com.inet.report.Engine.a(Unknown Source)
[CC,TRACE] at com.inet.report.Engine.a(Unknown Source)
[CC,TRACE] at com.inet.report.Engine.throwException(Unknown Source)
[CC,TRACE] at com.inet.report.zy.a.a(Unknown Source)
[CC,TRACE] at com.inet.report.b1.a(Unknown Source)
[CC,TRACE] ... 5 more
[CC,TRACE] Caused by: java.sql.SQLException: No suitable driver
[CC,TRACE] at java.sql.DriverManager.getDriver(DriverManager.java:315)
[CC,TRACE] ... 7 more
[CC,TRACE] caused by: Report Error [219] [Pool Manager] Cannot load specified driver: null null
[CC,TRACE] at com.inet.report.Engine.a(Unknown Source)
[CC,TRACE] at com.inet.report.Engine.a(Unknown Source)
[CC,TRACE] at com.inet.report.Engine.a(Unknown Source)
[CC,TRACE] at com.inet.report.Engine.throwException(Unknown Source)
[CC,TRACE] at com.inet.report.zy.a.a(Unknown Source)
[CC,TRACE] at com.inet.report.b1.a(Unknown Source)
[CC,TRACE] at com.inet.report.b1.a(Unknown Source)
[CC,TRACE] at com.inet.report.b1.y(Unknown Source)
[CC,TRACE] at com.inet.report.b1.q(Unknown Source)
[CC,TRACE] at com.inet.report.b1.run(Unknown Source)
[CC,TRACE] at com.inet.report.zy.h$a.run(Unknown Source)
[CC,TRACE] Caused by: java.sql.SQLException: No suitable driver
[CC,TRACE] at java.sql.DriverManager.getDriver(DriverManager.java:315)
[CC,TRACE] ... 7 more
[CC,TRACE] caused by: java.sql.SQLException: No suitable driver
[CC,TRACE] at java.sql.DriverManager.getDriver(DriverManager.java:315)
[CC,TRACE] at com.inet.report.zy.a.a(Unknown Source)
[CC,TRACE] at com.inet.report.b1.a(Unknown Source)
[CC,TRACE] at com.inet.report.b1.a(Unknown Source)
[CC,TRACE] at com.inet.report.b1.y(Unknown Source)
[CC,TRACE] at com.inet.report.b1.q(Unknown Source)
[CC,TRACE] at com.inet.report.b1.run(Unknown Source)
[CC,TRACE] at com.inet.report.zy.h$a.run(Unknown Source)下面的jars存在并且存在于类路径晶体-8.x.jar oranxo-3.12.jar中
是否有人熟悉上述错误？
Cannot load specified driver: null null用于在错误中显示空值的变量如何？我想会给我们一些关于这个问题的线索，但我不知道。我们的应用程序的前一个版本没有出现这个错误。定义的所有参数都与以前相同。
回答 1
Stack Overflow用户
回答已采纳
发布于 2018-06-06 15:12:57
原来是类路径错误。Oranxo驱动程序由应用程序加载，但未能将其加载到报表引擎。
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/50318345
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