java - Logger 和 System.out.println 的输出不按顺序

标签 java logging inputstream bufferedreader java.util.logging

我想在 Eclipse 控制台中获得记录器和输入流的输出。但每次执行的时候，结果的顺序总是不一样。我有几个类，其中一个主类可以调用其他类，并且我将记录器放入每个方法中进行调试。我将结果打印到控制台。我还有将 inputstream 作为 string 检索并将其打印到控制台的方法。

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

然后我重新执行并得到不同的顺序

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

以双斜线开头的行来自 inputstream，应该进行汇编。我尝试在每个方法中添加同步，但不起作用。如果我把Thread.sleep()放在哪里？有没有更安全的方式来同步输出？

最佳答案

该问题已通过问题评论中的讨论得到解决。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。

如果没有进行特定配置，Logger API 通常会将日志输出到 stderr。对 System.out.println() 的调用当然会转到 stdout。

当混合使用两种方法时，每次运行程序时控制台的输出都会有所不同，这是由于 stdout 通常是缓冲的，而 stderr不是。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，都打印到 stdout 或都打印到 stderr。

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.out.println() (以及其他打印方法)，您必须切换到 System.err，即 System.err.println( )，反之亦然。

关于java - Logger 和 System.out.println 的输出不按顺序，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/30329258/

上一篇：java - 如何使用 Hibernate4 和 Spring 创建 SessionFactory？

下一篇：java - 为什么我在尝试从 Android 访问 Gmail 时收到 javax.mail.NoSuchProviderException？

相关文章：

python - 打印tensorflow 2.0损失函数的所有项

java - Content-Length header 使用 WebClient 发送针对 multipart/form-data 的 POST 请求

java - Jackson 如何创建 JsonObject

嵌套 'finally' block 中的 Java 'try' 子句

android - 如何使用输入流读取器从android内部存储器加载文件

java - BufferedReader 读取旧输入

java - 在InputStream和FileInputStream之间切换的简单方法？

Java double 求和麻烦

python - 将每个请求的上下文添加到 Python 中的日志记录

linux - Linux 中特定时间间隔的 CPU 事件的细粒度日志记录

©2024 IT工具网  联系我们