如何调试Beanshell脚本？

Question

我遇到了调试Beanshell脚本的问题，一直出现以下错误信息：

"Exception invoking imported object method. : at Line: 194 : in file: inline evaluation of: ``import java.lang.reflect.InvocationTargetException; import java.util.Arrays; i . . . '' : migrateModels ( models , apiManager , isSAPRetailImportCondition , isSAPAFSCondition )"

该错误来源于方法“initMissingImportSources”的调用，代码行数为-1，具体位置未知。目标异常为java.lang.reflect.InvocationTargetException。

at bsh.BshMethod.invoke(Unknown Source)
at bsh.BshMethod.invoke(Unknown Source)
at bsh.Name.invokeLocalMethod(Unknown Source)
at bsh.Name.invokeMethod(Unknown Source)
at bsh.BSHMethodInvocation.eval(Unknown Source)
at bsh.BSHPrimaryExpression.eval(Unknown Source)
at bsh.BSHPrimaryExpression.eval(Unknown Source)
at bsh.BSHBlock.evalBlock(Unknown Source)
at bsh.BSHBlock.eval(Unknown Source)
at bsh.BshMethod.invokeImpl(Unknown Source)
at bsh.BshMethod.invoke(Unknown Source)
at bsh.BshMethod.invoke(Unknown Source)
at bsh.This.invokeMethod(Unknown Source)
at ImportSourceMigration.initMissingImportSources(BeanShell Generated via ASM (www.objectweb.org))
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at bsh.Reflect.invokeMethod(Unknown Source)
at bsh.Reflect.invokeObjectMethod(Unknown Source)
at bsh.Name.invokeMethod(Unknown Source)
at bsh.BSHMethodInvocation.eval(Unknown Source)
at bsh.BSHPrimaryExpression.eval(Unknown Source)
at bsh.BSHPrimaryExpression.eval(Unknown Source)
at bsh.BSHBlock.evalBlock(Unknown Source)
at bsh.BSHBlock.eval(Unknown Source)
at bsh.BSHBlock.eval(Unknown Source)
at bsh.BSHTryStatement.eval(Unknown Source)
at bsh.Interpreter.eval(Unknown Source)
at bsh.Interpreter.eval(Unknown Source)
at bsh.Interpreter.eval(Unknown Source)
at bsh.servlet.BshServlet.evalScript(Unknown Source)
at bsh.servlet.BshServlet.doGet(Unknown Source)

我正在尝试使用此代码获取完整的堆栈跟踪：

    try {
        migration.initMissingImportSources();
    } catch (java.lang.Throwable e) {
        print(ExceptionUtils.getFullStackTrace(e));
    }

有没有可能获取导致异常的原因？非常感谢。

- Denis

Answer 1

你的 "ExceptionUtils.getFullStackTrace()" 究竟是在做什么？你确定它能打印出嵌套的异常吗？

- Damien B

Answer 2

非常感谢您的回复。是的，getFullStackTrace来自apache commons，应该可以使用。我找到了问题所在。关键是我没有将完整的脚本放在一个方法调用中。这很重要，只有这样才能用try catch包围它并查看异常。希望这对其他人在未来也有所帮助。现在我看到了异常。我有几个相互调用的方法。

- Denis