Java Learning -021-properties Get a value for a configuration item

During routine scripting, you typically get configuration items in the configuration file to execute the appropriate business logic.

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The source code for getting the configuration item value is as follows:

1     /**2 * Get value from properties by key. Return null When the key is not exist.3      * 4      * @authorAARON.FFP5      * @versionv1.0.0:autouiselenium main.java.aaron.java.tools Fileutils.java propertiesgetvalue, 2014-11-20 16:31:22 EXP $ 6      * 7      * @paramprop:properties8      * @paramKey:key9      * @returnStringTen      */ One      Publicstring Propertiesgetvalue (Properties prop, String key) { AString value = ""; -          -         if( This. Propertieskeyisexist (prop, key)) { theValue =Prop.getproperty (key); -}Else { -Value =NULL; -         } +          -         returnvalue; +}

Java Get Properties config file source code

The test source is as follows:

1     /**2 * Test:get value from properties file by key3      * 4      * @authorAARON.FFP5      * @versionv1.0.0:autouiselenium test.java.aaron.java.tools Fileutilstest.java test_propertiesgetvalue, 2014-11-20 16:40:15 EXP $6      *7      */8 @Test9      Public voidTest_propertiesgetvalue () {Ten          This. Message = "\n\n\ntest:fileutils.propertiesgetvalue (Properties prop, String key)"; One          This. Logger.debug ( This. message); A          -          This. Fu =NewFileUtils (); -String filename = This. constantslist. Projecthome + This. constantslist. Fileseparator + the"Testng-temp" + This. constantslist. Fileseparator + "Propertiesread.properties"; -          -Properties prop = This. Fu.propertiesread (filename); -          +         //print-1 - prop.list (System.out); +          ASystem.out.println ("\ n")); at          -Assert.assertequals ( This. Fu.propertiesgetvalue (prop, "host"), "127.0.0.1", "Test case failed."); -}

Test Source

The execution results are as follows:

At this point, Java learning -021-properties get configuration items corresponding to the value of a smooth end, I hope this article can give beginners Java you a reference.

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Java Learning -021-properties Get a value for a configuration item