Page

java.lang.Object
- org.htmlparser.lexer.Page

所有已实现的接口:

java.io.Serializable
```
public class Page
extends java.lang.Object
implements java.io.Serializable
```
Represents the contents of an HTML page. Contains the source of characters and an index of positions of line separators (actually the first character position on the next line).

另请参阅:

序列化表格

字段概要

字段
限定符和类型	字段和说明
`static java.lang.String`	`DEFAULT_CHARSET` The default charset.
`static java.lang.String`	`DEFAULT_CONTENT_TYPE` The default content type.
`static char`	`EOF` Character value when the page is exhausted.

构造器概要

构造器
构造器和说明
`Page()` Construct an empty page.
`Page(java.io.InputStream stream, java.lang.String charset)` Construct a page from a stream encoded with the given charset.
`Page(Source source)` Construct a page from a source.
`Page(java.lang.String text)` Construct a page from the given string.
`Page(java.lang.String text, java.lang.String charset)` Construct a page from the given string.
`Page(java.net.URLConnection connection)` Construct a page reading from a URL connection.

方法概要

所有方法静态方法实例方法具体方法
限定符和类型	方法和说明
`void`	`close()` Close the page by destroying the source of characters.
`int`	`column(Cursor cursor)` Get the column number for a cursor.
`int`	`column(int position)` Get the column number for a cursor.
`java.net.URL`	`constructUrl(java.lang.String link, java.lang.String base)` Build a URL from the link and base provided using non-strict rules.
`java.net.URL`	`constructUrl(java.lang.String link, java.lang.String base, boolean strict)` Build a URL from the link and base provided.
`static java.lang.String`	`findCharset(java.lang.String name, java.lang.String fallback)` Lookup a character set name.
`java.lang.String`	`getAbsoluteURL(java.lang.String link)` Create an absolute URL from a relative link.
`java.lang.String`	`getAbsoluteURL(java.lang.String link, boolean strict)` Create an absolute URL from a relative link.
`java.lang.String`	`getBaseUrl()` Gets the baseUrl.
`char`	`getCharacter(Cursor cursor)` Read the character at the given cursor position.
`java.lang.String`	`getCharset(java.lang.String content)` Get a CharacterSet name corresponding to a charset parameter.
`java.net.URLConnection`	`getConnection()` Get the connection, if any.
`static ConnectionManager`	`getConnectionManager()` Get the connection manager all Parsers use.
`java.lang.String`	`getContentType()` Try and extract the content type from the HTTP header.
`java.lang.String`	`getEncoding()` Get the current encoding being used.
`java.lang.String`	`getLine(Cursor cursor)` Get the text line the position of the cursor lies on.
`java.lang.String`	`getLine(int position)` Get the text line the position of the cursor lies on.
`Source`	`getSource()` Get the source this page is reading from.
`java.lang.String`	`getText()` Get all text read so far from the source.
`void`	`getText(char[] array, int offset, int start, int end)` Put the text identified by the given limits into the given array at the specified offset.
`java.lang.String`	`getText(int start, int end)` Get the text identified by the given limits.
`void`	`getText(java.lang.StringBuffer buffer)` Put all text read so far from the source into the given buffer.
`void`	`getText(java.lang.StringBuffer buffer, int start, int end)` Put the text identified by the given limits into the given buffer.
`java.lang.String`	`getUrl()` Get the URL for this page.
`void`	`reset()` Reset the page by resetting the source of characters.
`int`	`row(Cursor cursor)` Get the line number for a cursor.
`int`	`row(int position)` Get the line number for a cursor.
`void`	`setBaseUrl(java.lang.String url)` Sets the baseUrl.
`void`	`setConnection(java.net.URLConnection connection)` Set the URLConnection to be used by this page.
`static void`	`setConnectionManager(ConnectionManager manager)` Set the connection manager to use.
`void`	`setEncoding(java.lang.String character_set)` Begins reading from the source with the given character set.
`void`	`setUrl(java.lang.String url)` Set the URL for this page.
`java.lang.String`	`toString()` Display some of this page as a string.
`void`	`ungetCharacter(Cursor cursor)` Return a character.

从类继承的方法 java.lang.Object
equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

- 字段详细资料
  - DEFAULT_CHARSET
```
public static final java.lang.String DEFAULT_CHARSET
```
    The default charset. This should be "ISO-8859-1", see RFC 2616 (http://www.ietf.org/rfc/rfc2616.txt?number=2616) section 3.7.1
    Another alias is "8859_1".
    
    另请参阅:
    
    常量字段值
  - DEFAULT_CONTENT_TYPE
```
public static final java.lang.String DEFAULT_CONTENT_TYPE
```
    The default content type. In the absence of alternate information, assume html content ("text/html").
    
    另请参阅:
    
    常量字段值
  - EOF
```
public static final char EOF
```
    Character value when the page is exhausted. Has a value of 65535.
    
    另请参阅:
    
    常量字段值
- 构造器详细资料
  - Page
```
public Page()
```
    Construct an empty page.
  - Page
```
public Page(java.net.URLConnection connection)
     throws ParserException
```
    Construct a page reading from a URL connection.
    
    参数:
    
    connection - A fully conditioned connection. The connect() method will be called so it need not be connected yet.
    
    抛出:
    
    ParserException - An exception object wrapping a number of possible error conditions, some of which are outlined below. IOException If an i/o exception occurs creating the source. UnsupportedEncodingException if the character set specified in the HTTP header is not supported.
  - Page
```
public Page(java.io.InputStream stream,
            java.lang.String charset)
     throws java.io.UnsupportedEncodingException
```
    Construct a page from a stream encoded with the given charset.
    
    参数:
    
    stream - The source of bytes.
    
    charset - The encoding used. If null, defaults to the DEFAULT_CHARSET.
    
    抛出:
    
    java.io.UnsupportedEncodingException - If the given charset is not supported.
  - Page
```
public Page(java.lang.String text,
            java.lang.String charset)
```
    Construct a page from the given string.
    
    参数:
    
    text - The HTML text.
    
    charset - Optional. The character set encoding that will be reported by getEncoding(). If charset is null the default character set is used.
  - Page
```
public Page(java.lang.String text)
```
    Construct a page from the given string. The page will report that it is using an encoding of DEFAULT_CHARSET.
    
    参数:
    
    text - The HTML text.
  - Page
```
public Page(Source source)
```
    Construct a page from a source.
    
    参数:
    
    source - The source of characters.
- 方法详细资料
  - getConnectionManager
```
public static ConnectionManager getConnectionManager()
```
    Get the connection manager all Parsers use.
    
    返回:
    
    The connection manager.
  - setConnectionManager
```
public static void setConnectionManager(ConnectionManager manager)
```
    Set the connection manager to use.
    
    参数:
    
    manager - The new connection manager.
  - getCharset
```
public java.lang.String getCharset(java.lang.String content)
```
    Get a CharacterSet name corresponding to a charset parameter.
    参数:
    content - A text line of the form:
    text/html; charset=Shift_JIS
    which is applicable both to the HTTP header field Content-Type and the meta tag http-equiv="Content-Type". Note this method also handles non-compliant quoted charset directives such as:
    text/html; charset="UTF-8"
    and
    text/html; charset='UTF-8'
    返回:
    
    The character set name to use when reading the input stream. For JDKs that have the Charset class this is qualified by passing the name to findCharset() to render it into canonical form. If the charset parameter is not found in the given string, the default character set is returned.
    
    另请参阅:
    
    findCharset(java.lang.String, java.lang.String), DEFAULT_CHARSET
  - findCharset
```
public static java.lang.String findCharset(java.lang.String name,
                                           java.lang.String fallback)
```
    Lookup a character set name. Vacuous for JVM's without java.nio.charset. This uses reflection so the code will still run under prior JDK's but in that case the default is always returned.
    
    参数:
    
    name - The name to look up. One of the aliases for a character set.
    
    fallback - The name to return if the lookup fails.
    
    返回:
    
    The character set name.
  - reset
```
public void reset()
```
    Reset the page by resetting the source of characters.
  - close
```
public void close()
           throws java.io.IOException
```
    Close the page by destroying the source of characters.
    
    抛出:
    
    java.io.IOException - If destroying the source encounters an error.
  - getConnection
```
public java.net.URLConnection getConnection()
```
    Get the connection, if any.
    
    返回:
    
    The connection object for this page, or null if this page is built from a stream or a string.
  - setConnection
```
public void setConnection(java.net.URLConnection connection)
                   throws ParserException
```
    Set the URLConnection to be used by this page. Starts reading from the given connection. This also resets the current url.
    
    参数:
    
    connection - The connection to use. It will be connected by this method.
    
    抛出:
    
    ParserException - If the connect() method fails, or an I/O error occurs opening the input stream or the character set designated in the HTTP header is unsupported.
  - getUrl
```
public java.lang.String getUrl()
```
    Get the URL for this page. This is only available if the page has a connection (getConnection() returns non-null), or the document base has been set via a call to setUrl().
    
    返回:
    
    The url for the connection, or null if there is no conenction or the document base has not been set.
  - setUrl
```
public void setUrl(java.lang.String url)
```
    Set the URL for this page. This doesn't affect the contents of the page, just the interpretation of relative links from this point forward.
    
    参数:
    
    url - The new URL.
  - getBaseUrl
```
public java.lang.String getBaseUrl()
```
    Gets the baseUrl.
    
    返回:
    
    The base URL for this page, or null if not set.
  - setBaseUrl
```
public void setBaseUrl(java.lang.String url)
```
    Sets the baseUrl.
    
    参数:
    
    url - The base url for this page.
  - getSource
```
public Source getSource()
```
    Get the source this page is reading from.
    
    返回:
    
    The current source.
  - getContentType
```
public java.lang.String getContentType()
```
    Try and extract the content type from the HTTP header.
    
    返回:
    
    The content type.
  - getCharacter
```
public char getCharacter(Cursor cursor)
                  throws ParserException
```
    Read the character at the given cursor position. The cursor position can be only behind or equal to the current source position. Returns end of lines (EOL) as \n, by converting \r and \r\n to \n, and updates the end-of-line index accordingly. Advances the cursor position by one (or two in the \r\n case).
    
    参数:
    
    cursor - The position to read at.
    
    返回:
    
    The character at that position, and modifies the cursor to prepare for the next read. If the source is exhausted a zero is returned.
    
    抛出:
    
    ParserException - If an IOException on the underlying source occurs, or an attempt is made to read characters in the future (the cursor position is ahead of the underlying stream)
  - ungetCharacter
```
public void ungetCharacter(Cursor cursor)
                    throws ParserException
```
    Return a character. Handles end of lines (EOL) specially, retreating the cursor twice for the '\r\n' case. The cursor position is moved back by one (or two in the \r\n case).
    
    参数:
    
    cursor - The position to 'unread' at.
    
    抛出:
    
    ParserException - If an IOException on the underlying source occurs.
  - getEncoding
```
public java.lang.String getEncoding()
```
    Get the current encoding being used.
    
    返回:
    
    The encoding used to convert characters.
  - setEncoding
```
public void setEncoding(java.lang.String character_set)
                 throws ParserException
```
    Begins reading from the source with the given character set. If the current encoding is the same as the requested encoding, this method is a no-op. Otherwise any subsequent characters read from this page will have been decoded using the given character set.
    Some magic happens here to obtain this result if characters have already been consumed from this page. Since a Reader cannot be dynamically altered to use a different character set, the underlying stream is reset, a new Source is constructed and a comparison made of the characters read so far with the newly read characters up to the current position. If a difference is encountered, or some other problem occurs, an exception is thrown.
    
    参数:
    
    character_set - The character set to use to convert bytes into characters.
    
    抛出:
    
    ParserException - If a character mismatch occurs between characters already provided and those that would have been returned had the new character set been in effect from the beginning. An exception is also thrown if the underlying stream won't put up with these shenanigans.
  - constructUrl
```
public java.net.URL constructUrl(java.lang.String link,
                                 java.lang.String base)
                          throws java.net.MalformedURLException
```
    Build a URL from the link and base provided using non-strict rules.
    
    参数:
    
    link - The (relative) URI.
    
    base - The base URL of the page, either from the <BASE> tag or, if none, the URL the page is being fetched from.
    
    返回:
    
    An absolute URL.
    
    抛出:
    
    java.net.MalformedURLException - If creating the URL fails.
    
    另请参阅:
    
    constructUrl(String, String, boolean)
  - constructUrl
```
public java.net.URL constructUrl(java.lang.String link,
                                 java.lang.String base,
                                 boolean strict)
                          throws java.net.MalformedURLException
```
    Build a URL from the link and base provided.
    
    参数:
    
    link - The (relative) URI.
    
    base - The base URL of the page, either from the <BASE> tag or, if none, the URL the page is being fetched from.
    
    strict - If true a link starting with '?' is handled according to RFC 2396, otherwise the common interpretation of a query appended to the base is used instead.
    
    返回:
    
    An absolute URL.
    
    抛出:
    
    java.net.MalformedURLException - If creating the URL fails.
  - getAbsoluteURL
```
public java.lang.String getAbsoluteURL(java.lang.String link)
```
    Create an absolute URL from a relative link.
    
    参数:
    
    link - The reslative portion of a URL.
    
    返回:
    
    The fully qualified URL or the original link if it was absolute already or a failure occured.
  - getAbsoluteURL
```
public java.lang.String getAbsoluteURL(java.lang.String link,
                                       boolean strict)
```
    Create an absolute URL from a relative link.
    
    参数:
    
    link - The reslative portion of a URL.
    
    strict - If true a link starting with '?' is handled according to RFC 2396, otherwise the common interpretation of a query appended to the base is used instead.
    
    返回:
    
    The fully qualified URL or the original link if it was absolute already or a failure occured.
  - row
```
public int row(Cursor cursor)
```
    Get the line number for a cursor.
    
    参数:
    
    cursor - The character offset into the page.
    
    返回:
    
    The line number the character is in.
  - row
```
public int row(int position)
```
    Get the line number for a cursor.
    
    参数:
    
    position - The character offset into the page.
    
    返回:
    
    The line number the character is in.
  - column
```
public int column(Cursor cursor)
```
    Get the column number for a cursor.
    
    参数:
    
    cursor - The character offset into the page.
    
    返回:
    
    The character offset into the line this cursor is on.
  - column
```
public int column(int position)
```
    Get the column number for a cursor.
    
    参数:
    
    position - The character offset into the page.
    
    返回:
    
    The character offset into the line this cursor is on.
  - getText
```
public java.lang.String getText(int start,
                                int end)
                         throws java.lang.IllegalArgumentException
```
    Get the text identified by the given limits.
    
    参数:
    
    start - The starting position, zero based.
    
    end - The ending position (exclusive, i.e. the character at the ending position is not included), zero based.
    
    返回:
    
    The text from start to end.
    
    抛出:
    
    java.lang.IllegalArgumentException - If an attempt is made to get characters ahead of the current source offset (character position).
    
    另请参阅:
    
    getText(StringBuffer, int, int)
  - getText
```
public void getText(java.lang.StringBuffer buffer,
                    int start,
                    int end)
             throws java.lang.IllegalArgumentException
```
    Put the text identified by the given limits into the given buffer.
    
    参数:
    
    buffer - The accumulator for the characters.
    
    start - The starting position, zero based.
    
    end - The ending position (exclusive, i.e. the character at the ending position is not included), zero based.
    
    抛出:
    
    java.lang.IllegalArgumentException - If an attempt is made to get characters ahead of the current source offset (character position).
  - getText
```
public java.lang.String getText()
```
    Get all text read so far from the source.
    
    返回:
    
    The text from the source.
    
    另请参阅:
    
    getText(StringBuffer)
  - getText
```
public void getText(java.lang.StringBuffer buffer)
```
    Put all text read so far from the source into the given buffer.
    
    参数:
    
    buffer - The accumulator for the characters.
    
    另请参阅:
    
    getText(StringBuffer,int,int)
  - getText
```
public void getText(char[] array,
                    int offset,
                    int start,
                    int end)
             throws java.lang.IllegalArgumentException
```
    Put the text identified by the given limits into the given array at the specified offset.
    
    参数:
    
    array - The array of characters.
    
    offset - The starting position in the array where characters are to be placed.
    
    start - The starting position, zero based.
    
    end - The ending position (exclusive, i.e. the character at the ending position is not included), zero based.
    
    抛出:
    
    java.lang.IllegalArgumentException - If an attempt is made to get characters ahead of the current source offset (character position).
  - getLine
```
public java.lang.String getLine(Cursor cursor)
```
    Get the text line the position of the cursor lies on.
    
    参数:
    
    cursor - The position to calculate for.
    
    返回:
    
    The contents of the URL or file corresponding to the line number containing the cursor position.
  - getLine
```
public java.lang.String getLine(int position)
```
    Get the text line the position of the cursor lies on.
    
    参数:
    
    position - The position to calculate for.
    
    返回:
    
    The contents of the URL or file corresponding to the line number containg the cursor position.
  - toString
```
public java.lang.String toString()
```
    Display some of this page as a string.
    
    覆盖:
    
    toString 在类中 java.lang.Object
    
    返回:
    
    The last few characters the source read in.

类 Page

字段概要

构造器概要

方法概要

从类继承的方法 java.lang.Object

字段详细资料

DEFAULT_CHARSET

DEFAULT_CONTENT_TYPE

EOF

构造器详细资料

Page

Page

Page

Page

Page

Page

方法详细资料

getConnectionManager

setConnectionManager

getCharset

findCharset

reset

close

getConnection

setConnection

getUrl

setUrl

getBaseUrl

setBaseUrl

getSource

getContentType

getCharacter

ungetCharacter

getEncoding

setEncoding

constructUrl

constructUrl

getAbsoluteURL

getAbsoluteURL

row

row

column

column

getText

getText

getText

getText

getText

getLine

getLine

toString