📄 网页爬虫,httpclient+jericho html parser 实现网页的抓取 - oscar999的专栏 - csdnblog.htm
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align=top><IMG id=_905_1031_Closed_Image style="DISPLAY: none"
onclick="this.style.display='none'; document.getElementById('_905_1031_Closed_Text').style.display='none'; document.getElementById('_905_1031_Open_Image').style.display='inline'; document.getElementById('_905_1031_Open_Text').style.display='inline';"
alt=""
src="网页爬虫,HttpClient+Jericho HTML Parser 实现网页的抓取 - oscar999的专栏 - CSDNBlog.files/ContractedSubBlock.gif"
align=top> }</SPAN></SPAN><SPAN
style="COLOR: rgb(0,0,0)"> </SPAN><SPAN
style="COLOR: rgb(0,0,255)">catch</SPAN><SPAN
style="COLOR: rgb(0,0,0)"> (HttpException e) </SPAN><SPAN
id=_905_1031_Closed_Text
style="BORDER-RIGHT: rgb(128,128,128) 1px solid; BORDER-TOP: rgb(128,128,128) 1px solid; DISPLAY: none; BORDER-LEFT: rgb(128,128,128) 1px solid; BORDER-BOTTOM: rgb(128,128,128) 1px solid; BACKGROUND-COLOR: rgb(255,255,255)">...</SPAN><SPAN
id=_905_1031_Open_Text><SPAN style="COLOR: rgb(0,0,0)">{<BR><IMG alt=""
src="网页爬虫,HttpClient+Jericho HTML Parser 实现网页的抓取 - oscar999的专栏 - CSDNBlog.files/InBlock.gif"
align=top> </SPAN><SPAN
style="COLOR: rgb(0,128,0)">//</SPAN><SPAN
style="COLOR: rgb(0,128,0)">发生致命的异常,可能是协议不对或者返回的内容有问题</SPAN><SPAN
style="COLOR: rgb(0,128,0)"><BR><IMG alt=""
src="网页爬虫,HttpClient+Jericho HTML Parser 实现网页的抓取 - oscar999的专栏 - CSDNBlog.files/InBlock.gif"
align=top></SPAN><SPAN
style="COLOR: rgb(0,0,0)"> System.out.println(</SPAN><SPAN
style="COLOR: rgb(0,0,0)">"</SPAN><SPAN
style="COLOR: rgb(0,0,0)">Please check your provided http address!</SPAN><SPAN
style="COLOR: rgb(0,0,0)">"</SPAN><SPAN style="COLOR: rgb(0,0,0)">);<BR><IMG
alt=""
src="网页爬虫,HttpClient+Jericho HTML Parser 实现网页的抓取 - oscar999的专栏 - CSDNBlog.files/InBlock.gif"
align=top> e.printStackTrace();<BR><IMG
id=_1055_1095_Open_Image
onclick="this.style.display='none'; document.getElementById('_1055_1095_Open_Text').style.display='none'; document.getElementById('_1055_1095_Closed_Image').style.display='inline'; document.getElementById('_1055_1095_Closed_Text').style.display='inline';"
alt=""
src="网页爬虫,HttpClient+Jericho HTML Parser 实现网页的抓取 - oscar999的专栏 - CSDNBlog.files/ExpandedSubBlockStart.gif"
align=top><IMG id=_1055_1095_Closed_Image style="DISPLAY: none"
onclick="this.style.display='none'; document.getElementById('_1055_1095_Closed_Text').style.display='none'; document.getElementById('_1055_1095_Open_Image').style.display='inline'; document.getElementById('_1055_1095_Open_Text').style.display='inline';"
alt=""
src="网页爬虫,HttpClient+Jericho HTML Parser 实现网页的抓取 - oscar999的专栏 - CSDNBlog.files/ContractedSubBlock.gif"
align=top> }</SPAN></SPAN><SPAN
style="COLOR: rgb(0,0,0)"> </SPAN><SPAN
style="COLOR: rgb(0,0,255)">catch</SPAN><SPAN
style="COLOR: rgb(0,0,0)"> (IOException e) </SPAN><SPAN
id=_1055_1095_Closed_Text
style="BORDER-RIGHT: rgb(128,128,128) 1px solid; BORDER-TOP: rgb(128,128,128) 1px solid; DISPLAY: none; BORDER-LEFT: rgb(128,128,128) 1px solid; BORDER-BOTTOM: rgb(128,128,128) 1px solid; BACKGROUND-COLOR: rgb(255,255,255)">...</SPAN><SPAN
id=_1055_1095_Open_Text><SPAN style="COLOR: rgb(0,0,0)">{<BR><IMG alt=""
src="网页爬虫,HttpClient+Jericho HTML Parser 实现网页的抓取 - oscar999的专栏 - CSDNBlog.files/InBlock.gif"
align=top> </SPAN><SPAN
style="COLOR: rgb(0,128,0)">//</SPAN><SPAN
style="COLOR: rgb(0,128,0)">发生网络异常</SPAN><SPAN
style="COLOR: rgb(0,128,0)"><BR><IMG alt=""
src="网页爬虫,HttpClient+Jericho HTML Parser 实现网页的抓取 - oscar999的专栏 - CSDNBlog.files/InBlock.gif"
align=top></SPAN><SPAN
style="COLOR: rgb(0,0,0)"> e.printStackTrace();<BR><IMG
id=_1105_1153_Open_Image
onclick="this.style.display='none'; document.getElementById('_1105_1153_Open_Text').style.display='none'; document.getElementById('_1105_1153_Closed_Image').style.display='inline'; document.getElementById('_1105_1153_Closed_Text').style.display='inline';"
alt=""
src="网页爬虫,HttpClient+Jericho HTML Parser 实现网页的抓取 - oscar999的专栏 - CSDNBlog.files/ExpandedSubBlockStart.gif"
align=top><IMG id=_1105_1153_Closed_Image style="DISPLAY: none"
onclick="this.style.display='none'; document.getElementById('_1105_1153_Closed_Text').style.display='none'; document.getElementById('_1105_1153_Open_Image').style.display='inline'; document.getElementById('_1105_1153_Open_Text').style.display='inline';"
alt=""
src="网页爬虫,HttpClient+Jericho HTML Parser 实现网页的抓取 - oscar999的专栏 - CSDNBlog.files/ContractedSubBlock.gif"
align=top> }</SPAN></SPAN><SPAN
style="COLOR: rgb(0,0,0)"> </SPAN><SPAN
style="COLOR: rgb(0,0,255)">finally</SPAN><SPAN
style="COLOR: rgb(0,0,0)"> </SPAN><SPAN id=_1105_1153_Closed_Text
style="BORDER-RIGHT: rgb(128,128,128) 1px solid; BORDER-TOP: rgb(128,128,128) 1px solid; DISPLAY: none; BORDER-LEFT: rgb(128,128,128) 1px solid; BORDER-BOTTOM: rgb(128,128,128) 1px solid; BACKGROUND-COLOR: rgb(255,255,255)">...</SPAN><SPAN
id=_1105_1153_Open_Text><SPAN style="COLOR: rgb(0,0,0)">{<BR><IMG alt=""
src="网页爬虫,HttpClient+Jericho HTML Parser 实现网页的抓取 - oscar999的专栏 - CSDNBlog.files/InBlock.gif"
align=top> </SPAN><SPAN
style="COLOR: rgb(0,128,0)">//</SPAN><SPAN
style="COLOR: rgb(0,128,0)">释放连接</SPAN><SPAN
style="COLOR: rgb(0,128,0)"><BR><IMG alt=""
src="网页爬虫,HttpClient+Jericho HTML Parser 实现网页的抓取 - oscar999的专栏 - CSDNBlog.files/InBlock.gif"
align=top></SPAN><SPAN
style="COLOR: rgb(0,0,0)"> getMethod.releaseConnection();<BR><IMG
alt=""
src="网页爬虫,HttpClient+Jericho HTML Parser 实现网页的抓取 - oscar999的专栏 - CSDNBlog.files/ExpandedSubBlockEnd.gif"
align=top> }</SPAN></SPAN><SPAN style="COLOR: rgb(0,0,0)"><BR><IMG
alt=""
src="网页爬虫,HttpClient+Jericho HTML Parser 实现网页的抓取 - oscar999的专栏 - CSDNBlog.files/ExpandedSubBlockEnd.gif"
align=top> }</SPAN></SPAN><SPAN style="COLOR: rgb(0,0,0)"><BR><IMG alt=""
src="网页爬虫,HttpClient+Jericho HTML Parser 实现网页的抓取 - oscar999的专栏 - CSDNBlog.files/ExpandedBlockEnd.gif"
align=top>}</SPAN></SPAN></DIV></DIV><BR>这样得到的是页面的源代码.<BR>这里<SPAN
id=_227_1158_Open_Text><SPAN id=_270_1156_Open_Text><SPAN
id=_554_879_Open_Text><SPAN style="COLOR: rgb(0,0,0)"> </SPAN><SPAN
style="COLOR: rgb(0,0,255)">byte</SPAN><SPAN
style="COLOR: rgb(0,0,0)">[] responseBody </SPAN><SPAN
style="COLOR: rgb(0,0,0)">=</SPAN><SPAN
style="COLOR: rgb(0,0,0)"> getMethod.getResponseBoy();是读取内容<BR>除此之外,我们还可以这样读取:<BR>InputStream
inputStream= getMethod.getResponseBodyAsStream();<BR>String
responseBody =
getMethod.getResponseBodyAsString();<BR><BR><BR>下面结合两者给个事例</SPAN></SPAN></SPAN></SPAN><SPAN
id=_227_1158_Open_Text><SPAN id=_270_1156_Open_Text><SPAN
id=_554_879_Open_Text><SPAN style="COLOR: rgb(0,0,0)"></SPAN><SPAN
style="COLOR: rgb(0,0,255)"></SPAN><SPAN style="COLOR: rgb(0,0,0)"></SPAN><SPAN
style="COLOR: rgb(0,0,0)"></SPAN><SPAN
style="COLOR: rgb(0,0,0)"></SPAN></SPAN></SPAN></SPAN><BR>取出http://www.ahcourt.gov.cn/gb/ahgy_2004/fyxw/index.html<BR>中"信息快递"栏的前几条信息.<BR>新建类CourtNews<BR>
<DIV
style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: windowtext 0.5pt solid; PADDING-LEFT: 5.4pt; BACKGROUND: rgb(230,230,230) 0% 50%; PADDING-BOTTOM: 4px; BORDER-LEFT: windowtext 0.5pt solid; WIDTH: 95%; PADDING-TOP: 4px; BORDER-BOTTOM: windowtext 0.5pt solid; moz-background-clip: -moz-initial; moz-background-origin: -moz-initial; moz-background-inline-policy: -moz-initial">
<DIV><IMG alt=""
src="网页爬虫,HttpClient+Jericho HTML Parser 实现网页的抓取 - oscar999的专栏 - CSDNBlog.files/None.gif"
align=top><SPAN style="COLOR: rgb(0,0,255)">package</SPAN><SPAN
style="COLOR: rgb(0,0,0)"> test;<BR><IMG alt=""
src="网页爬虫,HttpClient+Jericho HTML Parser 实现网页的抓取 - oscar999的专栏 - CSDNBlog.files/None.gif"
align=top><BR><IMG alt=""
src="网页爬虫,HttpClient+Jericho HTML Parser 实现网页的抓取 - oscar999的专栏 - CSDNBlog.files/None.gif"
align=top></SPAN><SPAN style="COLOR: rgb(0,0,255)">import</SPAN><SPAN
style="COLOR: rgb(0,0,0)"> java.io.IOException;<BR><IMG alt=""
src="网页爬虫,HttpClient+Jericho HTML Parser 实现网页的抓取 - oscar999的专栏 - CSDNBlog.files/None.gif"
align=top></SPAN><SPAN style="COLOR: rgb(0,0,255)">import</SPAN><SPAN
style="COLOR: rgb(0,0,0)"> java.util.ArrayList;<BR><IMG alt=""
src="网页爬虫,HttpClient+Jericho HTML Parser 实现网页的抓取 - oscar999的专栏 - CSDNBlog.files/None.gif"
align=top></SPAN><SPAN style="COLOR: rgb(0,0,255)">import</SPAN><SPAN
style="COLOR: rgb(0,0,0)"> java.util.Iterator;<BR><IMG alt=""
src="网页爬虫,HttpClient+Jericho HTML Parser 实现网页的抓取 - oscar999的专栏 - CSDNBlog.files/None.gif"
align=top></SPAN><SPAN style="COLOR: rgb(0,0,255)">import</SPAN><SPAN
style="COLOR: rgb(0,0,0)"> java.util.List;<BR><IMG alt=""
src="网页爬虫,HttpClient+Jericho HTML Parser 实现网页的抓取 - oscar999的专栏 - CSDNBlog.files/None.gif"
align=top><BR><IMG alt=""
src="网页爬虫,HttpClient+Jericho HTML Parser 实现网页的抓取 - oscar999的专栏 - CSDNBlog.files/None.gif"
align=top></SPAN><SPAN style="COLOR: rgb(0,0,255)">import</SPAN><SPAN
style="COLOR: rgb(0,0,0)"> org.apache.commons.httpclient.DefaultHttpMethodRetryHandler;<BR><IMG
alt=""
src="网页爬虫,HttpClient+Jericho HTML Parser 实现网页的抓取 - oscar999的专栏 - CSDNBlog.files/None.gif"
align=top></SPAN><SPAN style="COLOR: rgb(0,0,255)">import</SPAN><SPAN
style="COLOR: rgb(0,0,0)"> org.apache.commons.httpclient.HttpClient;<BR><IMG
alt=""
src="网页爬虫,HttpClient+Jericho HTML Parser 实现网页的抓取 - oscar999的专栏 - CSDNBlog.files/None.gif"
align=top></SPAN><SPAN style="COLOR: rgb(0,0,255)">import</SPAN><SPAN
style="COLOR: rgb(0,0,0)"> org.apache.commons.httpclient.HttpException;<BR><IMG
alt=""
src="网页爬虫,HttpClient+Jericho HTML Parser 实现网页的抓取 - oscar999的专栏 - CSDNBlog.files/None.gif"
align=top></SPAN><SPAN style="COLOR: rgb(0,0,255)">import</SPAN><SPAN
style="COLOR: rgb(0,0,0)"> org.apache.commons.httpclient.HttpStatus;<BR><IMG
alt=""
src="网页爬虫,HttpClient+Jericho HTML Parser 实现网页的抓取 - oscar999的专栏 - CSDNBlog.files/None.gif"
align=top></SPAN><SPAN style="COLOR: rgb(0,0,255)">import</SPAN><SPAN
style="COLOR: rgb(0,0,0)"> org.apache.commons.httpclient.methods.GetMethod;<BR><IMG
alt=""
src="网页爬虫,HttpClient+Jericho HTML Parser 实现网页的抓取 - oscar999的专栏 - CSDNBlog.files/None.gif"
align=top></SPAN><SPAN style="COLOR: rgb(0,0,255)">import</SPAN><SPAN
style="COLOR: rgb(0,0,0)"> org.apache.commons.httpclient.params.HttpMethodParams;<BR><IMG
alt=""
src="网页爬虫,HttpClient+Jericho HTML Parser 实现网页的抓取 - oscar999的专栏 - CSDNBlog.files/None.gif"
align=top><BR><IMG alt=""
src="网页爬虫,HttpClient+Jericho HTML Parser 实现网页的抓取 - oscar999的专栏 - CSDNBlog.files/None.gif"
align=top></SPAN><SPAN style="COLOR: rgb(0,0,255)">import</SPAN><SPAN
style="COLOR: rgb(0,0,0)"> au.id.jericho.lib.html.Element;<BR><IMG alt=""
src="网页爬虫,HttpClient+Jericho HTML Parser 实现网页的抓取 - oscar999的专栏 - CSDNBlog.files/None.gif"
align=top></SPAN><SPAN style="COLOR: rgb(0,0,255)">import</SPAN><SPAN
style="COLOR: rgb(0,0,0)"> au.id.jericho.lib.html.HTMLElementName;<BR><IMG
alt=""
src="网页爬虫,HttpClient+Jericho HTML Parser 实现网页的抓取 - oscar999的专栏 - CSDNBlog.files/None.gif"
align=top></SPAN><SPAN style="COLOR: rgb(0,0,255)">import</SPAN><SPAN
style="COLOR: rgb(0,0,0)"> au.id.jericho.lib.html.Segment;<BR><IMG alt=""
src="网页爬虫,HttpClient+Jericho HTML Parser 实现网页的抓取 - oscar999的专栏 - CSDNBlog.files/None.gif"
align=top></SPAN><SPAN style="COLOR: rgb(0,0,255)">import</SPAN><SPAN
style="COLOR: rgb(0,0,0)"> au.id.jericho.lib.html.Source;<BR><IMG alt=""
src="网页爬虫,HttpClient+Jericho HTML Parser 实现网页的抓取 - oscar999的专栏 - CSDNBlog.files/None.gif"
align=top><BR><IMG id=_623_658_Open_Image
onclick="this.style.display='none'; document.getElementById('_623_658_Open_Text').style.display='none'; document.getElementById('_623_658_Closed_Image').style.display='inline'; document.getElementById('_623_658_Closed_Text').style.display='inline';"
alt=""
src="网页爬虫,HttpClient+Jericho HTML Parser 实现网页的抓取 - oscar999的专栏 - CSDNBlog.files/ExpandedBlockStart.gif"
align=top><IMG id=_623_658_Closed_Image style="DISPLAY: none"
onclick="this.style.display='none'; document.getElementById('_623_658_Closed_Text').style.display='none'; document.getElementById('_623_658_Open_Image').style.display='inline'; document.getElementById('_623_658_Open_Text').style.display='inline';"
alt=""
src="网页爬虫,HttpClient+Jericho HTML Parser 实现网页的抓取 - oscar999的专栏 - CSDNBlog.files/ContractedBlock.gif"
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