Java中@Category注解的工作原理是什么-创新互联

今天就跟大家聊聊有关Java中@Category注解的工作原理是什么，可能很多人都不太了解，为了让大家更加了解，小编给大家总结了以下内容，希望大家根据这篇文章可以有所收获。

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(1) Create empty class FastTests and SlowTests. (2) In your test case class, categorize your test method using @Category annotation:

(3) Append the following code to your pom.xml:

        
            SlowTests
            
                com.sap.SlowTests
            
        
        
            FastTests
            
                com.sap.FastTests
            
        
    
    
        
            
                org.apache.maven.plugins
                maven-compiler-plugin
                3.1
                
                    1.8
                    1.8
                
            
            
                org.apache.maven.plugins
                maven-surefire-plugin
                2.13
                
                    
                        org.apache.maven.surefire
                        surefire-junit47
                        2.13
                    
                
                
                    ${testcase.groups}
                
            
        
    

(4) In my project, by default all 7 test methods will be executed during Maven build:

Suppose you only want to execute unit test belonging to category “SlowTests”, use the following command line:

Since now I only marked one method with annotation SlowTests, only one test method is executed:

If you would like to execute all unit tests EXCEPT @SlowTests, simply add another profile in pom.xml:

            NonSlowTests
            
                
                    
                        org.apache.maven.plugins
                        maven-surefire-plugin
                        
                            com.sap.SlowTests
                        
                    
                
            
        

Before test, in order to prove that Slow method is NOT really executed, I add a system.out.println in each method:

Use command line: mvn test -P NonSlowTests From console output, I can ensure that the method with @Category(SlowTests.class) is NOT executed at all.

看完上述内容，你们对Java中@Category注解的工作原理是什么有进一步的了解吗？如果还想了解更多知识或者相关内容，请关注创新互联-成都网站建设公司行业资讯频道，感谢大家的支持。

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