javadoc:如何使用它在 Window 7 上记录一个 java 文件？

Question

我正在尝试使用 javadoc 在窗口 7 上记录一个 java 文件，为了简化事情，我只使用以下简单命令:

javadoc Attr.java

然而，javadoc 给我IllegalArgumentException 并没有详细说明哪里错了，实际上，我使用的文件是从The Java Programming 复制的。所以，我想知道在窗口环境中使用“javadoc”命令需要什么。

一开始它似乎在工作......

Loading source file Attr.java...
Constructing Javadoc information...
Standard Doclet version 1.6.0_20
Building tree for all the packages and classes...
Generating Attr.html...

但随后它开始抛出这样的错误:

java.lang.IllegalArgumentException
        at sun.net.www.ParseUtil.decode(ParseUtil.java:189)
        at sun.misc.URLClassPath$FileLoader.<init>(URLClassPath.java:958)
        at sun.misc.URLClassPath$3.run(URLClassPath.java:328)
        at java.security.AccessController.doPrivileged(Native Method)
        at sun.misc.URLClassPath.getLoader(URLClassPath.java:322)
        at sun.misc.URLClassPath.getLoader(URLClassPath.java:299)
        at sun.misc.URLClassPath.findResource(URLClassPath.java:145)
        at java.net.URLClassLoader$2.run(URLClassLoader.java:385)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findResource(URLClassLoader.java:382)
        at java.lang.ClassLoader.getResource(ClassLoader.java:1003)
        at java.lang.ClassLoader.getResourceAsStream(ClassLoader.java:1193)
        at javax.xml.parsers.SecuritySupport$4.run(SecuritySupport.java:96)
        at java.security.AccessController.doPrivileged(Native Method)
        at javax.xml.parsers.SecuritySupport.getResourceAsStream(SecuritySupport.java:89)
        at javax.xml.parsers.FactoryFinder.findJarServiceProvider(FactoryFinder.java:250)
        at javax.xml.parsers.FactoryFinder.find(FactoryFinder.java:223)
        at javax.xml.parsers.SAXParserFactory.newInstance(SAXParserFactory.java:128)

这是我使用的java测试文件:

/**
 * An <code>Attr</code> object defines an attribute as a
 * name/value pair, where the name is a <code>String</code>
 * and the value an arbitrary <code>Object</code>.
 *
 * @version 1.1
 * @author Plato
 * @since 1.0
 */
public class Attr {
    /** The attribute name. */
    private final String name;
    /** The attribute value. */
    private Object value = null;

    /**
     * Creates a new attribute with the given name and an
     * initial value of <code>null</code>.
     * @see Attr#Attr(String,Object)
     */
    public Attr(String name) {
        this.name = name;
    }

    /**
     * Creates a new attribute with the given name and
     * initial value.
     * @see Attr#Attr(String)
     */
    public Attr(String name, Object value) {
        this.name = name;
        this.value = value;
    }

    /** Returns this attribute's name. */
    public String getName() {
        return name;
    }

    /** Returns this attribute's value. */
    public Object getValue() {
        return value;
    }

    /**
     * Sets the value of this attribute.  Changes the
     * value returned by calls to {@link #getValue}.
     * @param newValue  The new value for the attribute.
     * @return  The original value.
     * @see #getValue()
     */
    public Object setValue(Object newValue) {
        Object oldVal = value;
        value = newValue;
        return oldVal;
    }

    /**
     * Returns a string of the form <code>name=value</code>.
     */
    public String toString() {
        return name + "='" + value + "'";
    }
}

/=====解决方案 - 感谢 Michael Borgwardt=========/

第一期:

set CLASSPATH=. 

然后

javadoc Attr.java

Answer 1

嗯...考虑到错误发生在 URLClassLoader 调用的 ParseUtil 中:您是否有一个 CLASSPATH 环境内容格式错误的变量集？试试这个:

javadoc -classpath . Attr.java