Java Parsing user-agent Information _java

Parsing HTTP user-agent information, using Uasparser-0.6.1.jar and Jregex-1.2_01.jar two packages

Import Cz.mallat.uasparser.OnlineUpdater;
Import Cz.mallat.uasparser.UASparser;


Import Cz.mallat.uasparser.UserAgentInfo;

Import java.io.IOException;
 /** * Created by Edward on 2016/7/1.

  * * public class Useragentutil {static Uasparser uasparser = null;
    Initializes the Uasparser object static {try {Uasparser = new Uasparser (Onlineupdater.getvendoredinputstream ());
    catch (IOException e) {e.printstacktrace (); } public static void Main (string[] args) {String str = ' mozilla/5.0 (Windows NT 6.1;
    WOW64) applewebkit/537.36 (khtml, like Gecko) chrome/44.0.2403.130 safari/537.36 ";
    System.out.println (str);
      try {useragentinfo useragentinfo = UserAgentUtil.uasParser.parse (str); SYSTEM.OUT.PRINTLN ("Operating system Name:" +useragentinfo.getosfamily ());//System.out.println ("Operating system:" +useragentinfo.getosname ());//System.out.println ("Browser name:" +useragentinfo.getuafamily ());//System.out.println ("browser version:" +USERAGENTINFO.G Etbrowserversioninfo ());//System.out.println ("Device Type:" +useragentinfo.getdevicetype ());
      System.out.println ("Browser:" +useragentinfo.getuaname ());

    System.out.println ("Type:" +useragentinfo.gettype ());
    catch (IOException e) {e.printstacktrace ();

 }
  }
}

Run Result:

User-agent information can be viewed from the browser with its own tools:

The Chrome browser is used as follows

The static block in the program, which is executed at initialization time, is initialized as follows:

1. When creating a new instance of a class;
2. When a static method of a class is invoked;
3. When using a static field of a class or interface;
4. When invoking certain reflection methods in the Java API, such as methods in class classes, or methods of classes in Java.lang.reflect;
5. When initializing a subclass of the class;
6. When the virtual machine starts a class marked as the Startup class (Main method);

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