jdk1.5注释 以及 javadoc的用法

首先写一个注释类,自定义的CodeTag注释类

CodeTag.java

import java.lang.annotation.*;

@Retention(RetentionPolicy.RUNTIME)
@Target({ElementType.TYPE,ElementType.METHOD})
public @interface CodeTag {
    String authorName();

    String lastModificationDate();

    String bugFixes()default "";
}

再写一个掉用该注释类的类

ListClasses.java

import com.sun.javadoc.*;
public class ListClasses extends Doclet{
    public static boolean start(RootDoc root)
    {
        ClassDoc[] classes=root.classes();
        for(ClassDoc cd:classes)
        {
            System.out.println("Class ["+cd+"] has the following methods");
            for(MemberDoc md:cd.methods())
            {
                System.out.println("  "+md);
            }
        }
        return true;
    }
}

//接着写的类是得到注释信息,并在doc窗口下把注释信息打出来

AnnotationViewer.java

import com.sun.javadoc.*;
public class AnnotationViewer {
    public static boolean start(RootDoc root)
    {
        ClassDoc[] classes=root.classes();
        for(ClassDoc cls : classes)
        {
            showAnnotations(cls);
        }
        return (true);
    }
    static void showAnnotations(ClassDoc cls)
    {
        System.out.println("Annotations for class ["+cls+"]");
        process(cls.annotations());
        System.out.println("");
        for(MethodDoc m:cls.methods())
        {
            System.out.println("Annotations for method ["+m+"]");
            process(m.annotations());
            System.out.println("");
        }
    }
    static void process(AnnotationDesc[] anns)
    {
        for(AnnotationDesc ad:anns)
        {
            AnnotationDesc.ElementValuePair evp[]=ad.elementValues();
            for(AnnotationDesc.ElementValuePair e:evp)
            {
                System.out.println("NAME: "+e.element()+",VALUE="+e.value());
            }
        }
    }
}
有了以上的三个类基本上就OK了，现在要想输入出注释的信息，那么就需要用到javadoc这个工具

在doc下输入下面的命令

javadoc -source 1.5 -doclet AnnotationViewer ServerCommandProcessor.java

一切搞定，，。。。。。。。。。。

差点忘了，，记的用javac编译哦.........