Question

我希望在eclipse控制台中输出logger和inputstream。但每次执行时，结果总是不一样。我有几个类，一个主类调用其他类，我把logger放到每个方法进行调试。我将结果打印到控制台。我也有方法将inputstream检索为string并将其打印到控制台中。

输出示例

mai 19, 2015 4:10:58 PM ScriptPack.Section findSection
INFO: findSection OK
mai 19, 2015 4:10:58 PM ScriptPack.Section convertStringToTestCase
INFO: convertStringToTestCase OK
mai 19, 2015 4:10:58 PM ScriptPack.TestCase getIsPassed
INFO: getIsPassed OK
mai 19, 2015 4:10:58 PM ScriptPack.TestCase getName
INFO: getName OK
//Error. 
//**********EasyTest Test Report**********
//Test Case: testCase/test1.tc
//Result  : FAILED
//Start at: 2015-05-19-T16:10:58.479
mai 19, 2015 4:10:58 PM ScriptPack.TestCase settIterationNumber
INFO: settIterationNumber OK
mai 19, 2015 4:10:58 PM ScriptPack.TestCase getIterationNumber
INFO: getIterationNumber OK
mai 19, 2015 4:10:58 PM ScriptPack.TestCase getIsPassed
INFO: getIsPassed OK
Iteration number : 1
mai 19, 2015 4:10:58 PM ScriptPack.TestCase getName
INFO: getName OK
//**********EasyTest Test Report**********
//Test Case: testCase/test2.tc
mai 19, 2015 4:10:59 PM ScriptPack.TestCase setIsPassed
INFO: setIsPassed OK
//Result  : PASSED
//Start at: 2015-05-19-T16:10:58.838
Iteration number : 1
mai 19, 2015 4:10:59 PM ScriptPack.TestCase settIterationNumber
INFO: settIterationNumber OK
mai 19, 2015 4:10:59 PM ScriptPack.TestCase getIterationNumber
INFO: getIterationNumber OK
mai 19, 2015 4:10:59 PM ScriptPack.TestCase getIsPassed
INFO: getIsPassed OK
mai 19, 2015 4:10:59 PM ScriptPack.TestCase getName
INFO: getName OK
//**********EasyTest Test Report**********
//Test Case: testCase/test3.tc
mai 19, 2015 4:10:59 PM ScriptPack.TestCase setIsPassed
INFO: setIsPassed OK
//Result  : PASSED
//Start at: 2015-05-19-T16:10:59.229
mai 19, 2015 4:10:59 PM ScriptPack.TestCase settIterationNumber
INFO: settIterationNumber OK
Iteration number : 1
mai 19, 2015 4:10:59 PM ScriptPack.TestCase getIterationNumber
INFO: getIterationNumber OK
mai 19, 2015 4:10:59 PM ScriptPack.TestCase getIsPassed
INFO: getIsPassed OK
mai 19, 2015 4:10:59 PM ScriptPack.TestCase getIsPassed
INFO: getIsPassed OK
mai 19, 2015 4:10:59 PM ScriptPack.TestCase getIsPassed
INFO: getIsPassed OK
mai 19, 2015 4:10:59 PM ScriptPack.TestCaseList verifyList
INFO: verifyList NOK
mai 19, 2015 4:10:59 PM ScriptPack.TestCase getIsPassed
INFO: getIsPassed OK
mai 19, 2015 4:10:59 PM ScriptPack.TestCase getName
INFO: getName OK
mai 19, 2015 4:10:59 PM ScriptPack.TestCase settIterationNumber
INFO: settIterationNumber OK
mai 19, 2015 4:10:59 PM ScriptPack.TestCase getIterationNumber
INFO: getIterationNumber OK
mai 19, 2015 4:10:59 PM ScriptPack.TestCase getIsPassed
INFO: getIsPassed OK
mai 19, 2015 4:10:59 PM ScriptPack.TestCase getIsPassed
INFO: getIsPassed OK
mai 19, 2015 4:10:59 PM ScriptPack.TestCase getIsPassed
INFO: getIsPassed OK
mai 19, 2015 4:10:59 PM ScriptPack.TestCase getIsPassed
INFO: getIsPassed OK
mai 19, 2015 4:10:59 PM ScriptPack.TestCase getIsPassed
INFO: getIsPassed OK
mai 19, 2015 4:10:59 PM ScriptPack.TestCaseList verifyList
INFO: verifyList NOK
//Error. 
//**********EasyTest Test Report**********
//Test Case: testCase/test1.tc
//Result  : FAILED
//Start at: 2015-05-19-T16:10:59.635
Iteration number : 2

然后我重新执行并获得不同的顺序

mai 19, 2015 4:13:24 PM ScriptPack.Section findSection
INFO: findSection OK
mai 19, 2015 4:13:24 PM ScriptPack.Section convertStringToTestCase
INFO: convertStringToTestCase OK
mai 19, 2015 4:13:24 PM ScriptPack.TestCase getIsPassed
INFO: getIsPassed OK
mai 19, 2015 4:13:24 PM ScriptPack.TestCase getName
INFO: getName OK
//Error. 
//**********EasyTest Test Report**********
//Test Case: testCase/test1.tc
//Result  : FAILED
//Start at: 2015-05-19-T16:13:24.321
mai 19, 2015 4:13:24 PM ScriptPack.TestCase settIterationNumber
INFO: settIterationNumber OK
mai 19, 2015 4:13:24 PM ScriptPack.TestCase getIterationNumber
INFO: getIterationNumber OK
Iteration number : 1
mai 19, 2015 4:13:24 PM ScriptPack.TestCase getIsPassed
INFO: getIsPassed OK
mai 19, 2015 4:13:24 PM ScriptPack.TestCase getName
INFO: getName OK
//**********EasyTest Test Report**********
//Test Case: testCase/test2.tc
mai 19, 2015 4:13:25 PM ScriptPack.TestCase setIsPassed
INFO: setIsPassed OK
mai 19, 2015 4:13:25 PM ScriptPack.TestCase settIterationNumber
INFO: settIterationNumber OK
mai 19, 2015 4:13:25 PM ScriptPack.TestCase getIterationNumber
INFO: getIterationNumber OK
mai 19, 2015 4:13:25 PM ScriptPack.TestCase getIsPassed
INFO: getIsPassed OK
mai 19, 2015 4:13:25 PM ScriptPack.TestCase getName
INFO: getName OK
//Result  : PASSED
//Start at: 2015-05-19-T16:13:24.789
Iteration number : 1
//**********EasyTest Test Report**********
//Test Case: testCase/test3.tc
//Result  : PASSED
//Start at: 2015-05-19-T16:13:25.228
mai 19, 2015 4:13:25 PM ScriptPack.TestCase setIsPassed
INFO: setIsPassed OK
mai 19, 2015 4:13:25 PM ScriptPack.TestCase settIterationNumber
INFO: settIterationNumber OK
Iteration number : 1
mai 19, 2015 4:13:25 PM ScriptPack.TestCase getIterationNumber
INFO: getIterationNumber OK
mai 19, 2015 4:13:25 PM ScriptPack.TestCase getIsPassed
INFO: getIsPassed OK
mai 19, 2015 4:13:25 PM ScriptPack.TestCase getIsPassed
INFO: getIsPassed OK
mai 19, 2015 4:13:25 PM ScriptPack.TestCase getIsPassed
INFO: getIsPassed OK
mai 19, 2015 4:13:25 PM ScriptPack.TestCaseList verifyList
INFO: verifyList NOK
mai 19, 2015 4:13:25 PM ScriptPack.TestCase getIsPassed
INFO: getIsPassed OK
mai 19, 2015 4:13:25 PM ScriptPack.TestCase getName
INFO: getName OK
mai 19, 2015 4:13:25 PM ScriptPack.TestCase settIterationNumber
INFO: settIterationNumber OK
mai 19, 2015 4:13:25 PM ScriptPack.TestCase getIterationNumber
INFO: getIterationNumber OK
mai 19, 2015 4:13:25 PM ScriptPack.TestCase getIsPassed
INFO: getIsPassed OK
mai 19, 2015 4:13:25 PM ScriptPack.TestCase getIsPassed
INFO: getIsPassed OK
mai 19, 2015 4:13:25 PM ScriptPack.TestCase getIsPassed
INFO: getIsPassed OK
mai 19, 2015 4:13:25 PM ScriptPack.TestCase getIsPassed
INFO: getIsPassed OK
mai 19, 2015 4:13:25 PM ScriptPack.TestCase getIsPassed
INFO: getIsPassed OK
//Error. 
//**********EasyTest Test Report**********
//Test Case: testCase/test1.tc
//Result  : FAILED
//Start at: 2015-05-19-T16:13:25.587
Iteration number : 2
mai 19, 2015 4:13:25 PM ScriptPack.TestCaseList verifyList
INFO: verifyList NOK

该行以inputstream的双斜线开头，应该汇编。我试图在每个方法中放置synchronized但不起作用。如果我放Thread.sleep()，我应该把它放在哪里？有没有更多安全方法来同步输出？

Answer 1

通过对问题的评论中的讨论解决了该问题。我发布此信息作为答案，以防其他人遇到同样的问题并在搜索时发现此问题。

如果没有进行任何特定配置，Logger API通常会将记录输出到stderr。拨打System.out.println()的电话当然会转到stdout。

在混合两种方法时，每次运行程序时输出到控制台的问题都不同，这是因为stdout通常是缓冲的，而stderr则不是。stdout。要解决此类问题，必须确保两种方法都打印到相同类型的输出流，包括stderr或两者都打印到System.out.println()。

要了解如何为记录器API执行此操作，您必须查看记录器的文档。对于System.err（以及其他打印方法），您必须改为System.err.println()，即modfit <- train(as.factor(target)~., method="rf", data=new)，反之亦然。

Answer 2

而不是睡眠，如果您知道每个线程需要等待的时间，则可以使用wait。或者使用一个线程来锁定并打开另一个......这一切都取决于您的需求。使用多线程时，除非它们不同时工作，否则结果将永远不会完全相同。如果订单无效，则需要进行一些更改。尝试使用其中一个线程池系列对象。这里有一个可能有帮助的教程 http://www.tutorialspoint.com/java/java_multithreading.htm

Logger和System.out.println的输出不按顺序排列

2 个答案: