我可以在eval'；中获取错误的行号吗；Groovy脚本？

我有一段代码，用于运行用户提供的Groovy脚本，如下所示：

def scriptText = <something user entered>
def manager = new ScriptEngineManager()
def engine = manager.getEngineByName('Groovy')

try {
    engine.eval(scriptText)
}
catch (ScriptException e) {
    println 'Script error at line ' + e.getLineNumber() + ', column ' + e.getColumnNumber() + ': ' + e.getMessage()
}

Exception in thread "main" groovy.lang.MissingPropertyException: No such property: blah for class: Script1
Possible solutions: class
    at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.unwrap(ScriptBytecodeAdapter.java:50)
    at org.codehaus.groovy.runtime.callsite.PogoGetPropertySite.getProperty(PogoGetPropertySite.java:49)
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callGroovyObjectGetProperty(AbstractCallSite.java:231)
    at Script1.run(Script1.groovy:6)  <---- this is the script error
    at groovy.lang.GroovyShell.evaluate(GroovyShell.java:518)
    at groovy.lang.GroovyShell.evaluate(GroovyShell.java:556)
    at groovy.lang.GroovyShell.evaluate(GroovyShell.java:527)
    at groovy.util.Eval.me(Eval.java:68)
    at groovy.util.Eval.me(Eval.java:51)
    at groovy.util.Eval$me.call(Unknown Source)
    at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:45)
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:108)
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:116)
    at com.kminnovations.metrics.engine.tester.Testing.parseFile(Testing.groovy:32)
    at com.kminnovations.metrics.engine.tester.Testing$parseFile.call(Unknown Source)
    at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:45)
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:108)
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:120)
    at com.kminnovations.metrics.engine.tester.MetricsEngineTester.main(MetricsEngineTester.groovy:23)

我还尝试调用Eval.me（scriptText），因为调用代码也是Groovy，但随后我得到了一个很大的堆栈跟踪，其中隐藏了脚本错误的原因，如下所示：

def scriptText = <something user entered>
def manager = new ScriptEngineManager()
def engine = manager.getEngineByName('Groovy')

try {
    engine.eval(scriptText)
}
catch (ScriptException e) {
    println 'Script error at line ' + e.getLineNumber() + ', column ' + e.getColumnNumber() + ': ' + e.getMessage()
}

Exception in thread "main" groovy.lang.MissingPropertyException: No such property: blah for class: Script1
Possible solutions: class
    at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.unwrap(ScriptBytecodeAdapter.java:50)
    at org.codehaus.groovy.runtime.callsite.PogoGetPropertySite.getProperty(PogoGetPropertySite.java:49)
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callGroovyObjectGetProperty(AbstractCallSite.java:231)
    at Script1.run(Script1.groovy:6)  <---- this is the script error
    at groovy.lang.GroovyShell.evaluate(GroovyShell.java:518)
    at groovy.lang.GroovyShell.evaluate(GroovyShell.java:556)
    at groovy.lang.GroovyShell.evaluate(GroovyShell.java:527)
    at groovy.util.Eval.me(Eval.java:68)
    at groovy.util.Eval.me(Eval.java:51)
    at groovy.util.Eval$me.call(Unknown Source)
    at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:45)
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:108)
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:116)
    at com.kminnovations.metrics.engine.tester.Testing.parseFile(Testing.groovy:32)
    at com.kminnovations.metrics.engine.tester.Testing$parseFile.call(Unknown Source)
    at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:45)
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:108)
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:120)
    at com.kminnovations.metrics.engine.tester.MetricsEngineTester.main(MetricsEngineTester.groovy:23)

线程“main”groovy.lang.MissingPropertyException中的异常：没有此类属性：类：Script1的blah 可能的解决方案：类 位于org.codehaus.groovy.runtime.ScriptBytecodeAdapter.unwrap（ScriptBytecodeAdapter.java:50） 位于org.codehaus.groovy.runtime.callsite.PogoGetPropertySite.getProperty（PogoGetPropertySite.java:49） 位于org.codehaus.groovy.runtime.callsite.AbstractCallSite.callGroovyObjectGetProperty（AbstractCallSite.java:231）

---

在Script1.run（Script1.groovy:6）中，我认为您仍然可以通过导航到根本原因并搜索ScriptN.groovy之类的源代码，因为

ScriptEngineManager

将自动为每个执行的脚本生成此名称

def manager = new ScriptEngineManager()
def engine = manager.getEngineByName('Groovy')

try {
    engine.eval(scriptText)
} catch (javax.script.ScriptException e) {
    def cause = rootCause(e)
    def line = cause.stackTrace.find { 
        it.fileName ==~ /^Script\d+\.groovy$/ 
    }.lineNumber
    println "Line $line: $cause.message"
}

def rootCause(Exception e) {
    Throwable t = e;
    while (t.cause != null) t = t.cause;
    t
}

---

您可能需要像apache.commons.ExceptionUtils中那样使用更复杂的

rootCause

，这将停止groovy的执行。在不终止或停止groovy执行的情况下，我们还有其他方法捕获行号吗？