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Java Source Code / Java Documentation
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web.rss
Source Cross Reference
Class Diagram
Java Document (Java Doc)
java.lang
.Object
web.rss
.RssHunter
All known Subclasses:
web.rss
._RSSHunter
,
web.rss
._RDFHunter
,
web.rss
._AtomHunter
,
web.rss
._HtmlHunter
,
RssHunter
abstract
public
class RssHunter
(Code)
用于网站摘要信息获取的类 使用方法: Channel channel = RssHunter.parse("http://www.javayou.com/blog/rss1.jsp");
author:
Winter Lau
Field Summary
static
Hashtable
hunters
static Log
log
Constructor Summary
protected
RssHunter
()
Method Summary
protected
static
String
getCachePath
()
protected
static
String
[]
getContent
(
String
url)
protected
Digester
getDigester
()
protected
Digester
getDigester
(
Channel
channel)
protected
static
String
getEncoding
(
String
xml)
protected
static
RssHunter
getHunter
(
String
protocol)
protected
static long
load
(
String
url,
StringBuffer
content,
StringBuffer
mode)
public
static void
main
(
String
[] args)
protected
static boolean
needReload
(long lastReload)
public
static
Channel
parse
(
String
url)
abstract
protected
Channel
parse
(
Reader
content)
protected
static void
save
(
String
url,
String
content,
String
mode)
Field Detail
hunters
static
Hashtable
hunters
(Code)
log
static Log log
(Code)
Constructor Detail
RssHunter
protected
RssHunter()
(Code)
Method Detail
getCachePath
protected
static
String
getCachePath()
(Code)
获取存放缓冲文件所在的目录,默认为临时目录下的dlog4j_cache子目录
getContent
protected
static
String
[] getContent(
String
url) throws
Exception
(Code)
从地址URL中抓取摘要信息以及内容格式
Parameters:
url - 两个元素的字符串数据,第一个元素为摘要内容,第二个元素为内容格式,例如rss
throws:
Exception
-
getDigester
protected
Digester getDigester()
(Code)
获取XML解析器
Parameters:
channel -
getDigester
protected
Digester getDigester(
Channel
channel)
(Code)
获取XML解析器
Parameters:
channel -
getEncoding
protected
static
String
getEncoding(
String
xml) throws
ParseException
(Code)
解析XML所用的编码方式
Parameters:
xml -
throws:
ParseException
-
getHunter
protected
static
RssHunter
getHunter(
String
protocol)
(Code)
获取指定协议对应的摘要信息加载类
Parameters:
protocol -
load
protected
static long load(
String
url,
StringBuffer
content,
StringBuffer
mode) throws
IOException
(Code)
加载指定站点上次的保存的时间
Parameters:
url - 输入参数,站点的URL
Parameters:
content - 输出参数,保存信息的内容
throws:
IOException
-
main
public
static void main(
String
[] args) throws
Exception
(Code)
needReload
protected
static boolean needReload(long lastReload)
(Code)
默认的重新加载策略:上一次加载二十分钟后允许重新加载 子类可覆盖该方法进行策略的重新定义
Parameters:
lastReload -
parse
public
static
Channel
parse(
String
url) throws
Exception
(Code)
从URL获取信息内容并解析到Channel对象中
Parameters:
url -
throws:
Exception
-
parse
abstract
protected
Channel
parse(
Reader
content) throws
Exception
(Code)
子类负责将摘要内容解析成条目
Parameters:
content -
throws:
Exception
-
save
protected
static void save(
String
url,
String
content,
String
mode) throws
IOException
(Code)
保存某个站点的最新信息
Parameters:
url - 输入参数,站点URL
Parameters:
content - 输入参数,站点摘要信息
throws:
IOException
-
Methods inherited from
java.lang.Object
native
protected
Object
clone() throws
CloneNotSupportedException
(Code)
(Java Doc)
public
boolean equals(
Object
obj)
(Code)
(Java Doc)
protected
void finalize() throws
Throwable
(Code)
(Java Doc)
final native
public
Class
> getClass()
(Code)
(Java Doc)
native
public
int hashCode()
(Code)
(Java Doc)
final native
public
void notify()
(Code)
(Java Doc)
final native
public
void notifyAll()
(Code)
(Java Doc)
public
String
toString()
(Code)
(Java Doc)
final native
public
void wait(long timeout) throws
InterruptedException
(Code)
(Java Doc)
final
public
void wait(long timeout, int nanos) throws
InterruptedException
(Code)
(Java Doc)
final
public
void wait() throws
InterruptedException
(Code)
(Java Doc)
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