URLName (Java EE 5)

java.lang.Object
  javax.mail.URLName

URL 的名称。此类表示一个 URL 名称，它还提供基本解析功能以解析大多数 Internet 标准 URL 方案。

注意，此类与 java.net.URL 的不同在于此类只表示 URL 名称，不模拟到 URL 的连接。

version

1.19, 07/05/04

英文文档：

The name of a URL. This class represents a URL name and also provides the basic parsing functionality to parse most internet standard URL schemes.

Note that this class differs from java.net.URL in that this class just represents the name of a URL, it does not model the connection to a URL.

Version:

1.19, 07/05/04

Author:

Christopher Cotton, Bill Shannon

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Field Summary
protected  String	fullURL           The full version of the URL

 

Constructor Summary
URLName(String url)           Construct a URLName from the string.
URLName(String protocol, String host, int port, String file, String username, String password)           Creates a URLName object from the specified protocol, host, port number, file, username, and password.
URLName(URL url)           Construct a URLName from a java.net.URL object.

 

Method Summary
boolean	equals(Object obj)           Compares two URLNames.
String	getFile()           Returns the file name of this URLName.
String	getHost()           Returns the host of this URLName.
String	getPassword()           Returns the password of this URLName.
int	getPort()           Returns the port number of this URLName.
String	getProtocol()           Returns the protocol of this URLName.
String	getRef()           Returns the reference of this URLName.
URL	getURL()           Constructs a URL from the URLName.
String	getUsername()           Returns the user name of this URLName.
int	hashCode()           Compute the hash code for this URLName.
protected  void	parseString(String url)           Method which does all of the work of parsing the string.
String	toString()           Constructs a string representation of this URLName.

 

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

 

Field Detail

英文文档：

fullURL

protected String fullURL

The full version of the URL

Constructor Detail

public URLName(String protocol, String host, int port, String file, String username, String password)
根据指定协议、主机、端口号、文件、用户名和密码创建 URLName 对象。将端口号指定为 -1，指示 URL 应该使用协议的默认端口。

英文文档：

URLName

public URLName(String protocol,
               String host,
               int port,
               String file,
               String username,
               String password)

Creates a URLName object from the specified protocol, host, port number, file, username, and password. Specifying a port number of -1 indicates that the URL should use the default port for the protocol.

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public URLName(java.net.URL url)
根据 java.net.URL 对象构造 URLName。

英文文档：

URLName

public URLName(URL url)

Construct a URLName from a java.net.URL object.

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public URLName(String url)
根据字符串构造 URLName。解析出所有可能的信息（协议、主机、端口、文件、用户名和密码）。

英文文档：

URLName

public URLName(String url)

Construct a URLName from the string. Parses out all the possible information (protocol, host, port, file, username, password).

Method Detail

public String toString()
构造此 URLName 的字符串表示形式。

英文文档：

toString

public String toString()

Constructs a string representation of this URLName.

Overrides:

toString in class Object

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protected void parseString(String url)
完成解析字符串的所有工作的方法。

英文文档：

parseString

protected void parseString(String url)

Method which does all of the work of parsing the string.

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public int getPort()
返回此 URLName 的端口号。如果未设置端口，则返回 -1。

英文文档：

getPort

public int getPort()

Returns the port number of this URLName. Returns -1 if the port is not set.

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public String getProtocol()
返回此 URLName 的协议。如果此 URLName 没有协议，则返回 null。

英文文档：

getProtocol

public String getProtocol()

Returns the protocol of this URLName. Returns null if this URLName has no protocol.

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public String getFile()
返回此 URLName 的文件名。如果此 URLName 没有文件名，则返回 null。

英文文档：

getFile

public String getFile()

Returns the file name of this URLName. Returns null if this URLName has no file name.

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public String getRef()
返回此 URLName 的引用。如果此 URLName 没有引用，则返回 null。

英文文档：

getRef

public String getRef()

Returns the reference of this URLName. Returns null if this URLName has no reference.

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public String getHost()
返回此 URLName 的主机。如果此 URLName 没有主机，则返回 null。

英文文档：

getHost

public String getHost()

Returns the host of this URLName. Returns null if this URLName has no host.

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public String getUsername()
返回此 URLName 的用户名。如果此 URLName 没有用户名，则返回 null。

英文文档：

getUsername

public String getUsername()

Returns the user name of this URLName. Returns null if this URLName has no user name.

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public String getPassword()
返回此 URLName 的密码。如果此 URLName 没有密码，则返回 null。

英文文档：

getPassword

public String getPassword()

Returns the password of this URLName. Returns null if this URLName has no password.

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public java.net.URL getURL() throws java.net.MalformedURLException
根据 URLName 构造 URL。

英文文档：

getURL

public URL getURL()
           throws MalformedURLException

Constructs a URL from the URLName.

Throws:

MalformedURLException

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public boolean equals(Object obj)
比较两个 URLName。当且仅当参数不为 null，并且是一个与此对象表示相同 URLName 的 URLName 对象时，结果才为 true。如果两个 URLName 对象拥有相同协议、相同主机、相同主机端口号、相同用户名，并在主机上拥有相同的文件，则两个对象是相等的。如果两个 URLName 对象均为 null，则字段（主机、用户名和文件）也被认为是相同的。

如果名称是相等的（不区分大小写），或者用主机名查找它们都获得成功，并且它们都引用相同的 IP 地址，则主机被认为是相等的。

注意，URLName 没有特定协议的默认端口号的信息，因此 "imap://host" 和 "imap://host:143" 比较起来可能是不相等的。

还要注意的是，比较中不包括密码字段，也不包括追加到文件名中的任何引用字段。

英文文档：

equals

public boolean equals(Object obj)

Compares two URLNames. The result is true if and only if the argument is not null and is a URLName object that represents the same URLName as this object. Two URLName objects are equal if they have the same protocol and the same host, the same port number on the host, the same username, and the same file on the host. The fields (host, username, file) are also considered the same if they are both null.

Hosts are considered equal if the names are equal (case independent) or if host name lookups for them both succeed and they both reference the same IP address.

Note that URLName has no knowledge of default port numbers for particular protocols, so "imap://host" and "imap://host:143" would not compare as equal.

Note also that the password field is not included in the comparison, nor is any reference field appended to the filename.

Overrides:

equals in class Object

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public int hashCode()
计算此 URLName 的哈希码。

英文文档：

hashCode

public int hashCode()

Compute the hash code for this URLName.

Overrides:

hashCode in class Object

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