Common classes for reading. Properties Profiles in Java

Since the code reading the configuration file in Java is fixed, you can separate the part of the read configuration file as a class that can be reused later. To be able to achieve the purpose of reuse, it is not possible to generate a function for each property in the configuration file to read, we need a common method to read the property, that is, the user gives the property name (as a method parameter) to obtain the value of the corresponding property. Here is the sample code:

1 ImportJava.io.*;2 ImportJava.util.*;3 4 ImportOrg.apache.commons.logging.Log;5 Importorg.apache.commons.logging.LogFactory;6 7 8  Public classConfigure {9 Ten //private static final log log = Logfactory.getlog (Serverconfig.class); One     Private StaticProperties config =NULL;  A      -      PublicConfigure () { -Config =NewProperties (); the     } -      -      PublicConfigure (String filePath) { -Config =NewProperties (); +         Try { -ClassLoader CL = This. GetClass (). getClassLoader (); + InputStream in; A             if(CL! =NULL) { atin =Cl.getresourceasstream (filePath); -}Else { -in =Classloader.getsystemresourceasstream (filePath); -             } - config.load (in); -         //in.close (); in}Catch(FileNotFoundException e) { -         //log.error ("Server configuration file not found"); toSYSTEM.OUT.PRINTLN ("Server configuration file not found"); +}Catch(Exception e) { -         //log.error ("Server configuration information read error"); theSYSTEM.OUT.PRINTLN ("Server configuration information read error"); *         } $     }Panax Notoginseng      -      Publicstring GetValue (String key) { the         if(Config.containskey (key)) { +String value =Config.getproperty (key); A             returnvalue; the}Else { +             return""; -         } $     } $      -      Public intgetvalueint (String key) { -String value =GetValue (key); the         intValueint = 0; -         Try {WuyiValueint =Integer.parseint (value); the}Catch(NumberFormatException e) { - e.printstacktrace (); Wu             returnValueint; -         } About         returnValueint; $     }     -}

Unit tests:

    @Test    publicvoid  configuretest () {        new Configure (" Server.properties ");         int port = config.getvalueint ("Server.port");         = Config.getvalue ("Server.ip");         = Config.getvalue ("Message.split");        System.out.println ("Port:" + port);        SYSTEM.OUT.PRINTLN ("IP:" + IP);        System.out.println ("SP:" + sp);    

The configuration file is as follows:

Server.port =30000server.ip=127.0.0.1falsemax_error_num=1000  Message.split=\ #message.over =31message.servergetmessage=Yesmessage.wrong=  Nomessage.servergetover=Overmessage.serverfindsim=Findmessage.servernotfindsim= Notfind

Common classes for reading. Properties Profiles in Java