📄 网页爬虫,httpclient+jericho html parser 实现网页的抓取 - oscar999的专栏 - csdnblog.htm
字号:
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)"> org.apache.commons.httpclient.</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/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
id=_227_1158_Open_Image
onclick="this.style.display='none'; document.getElementById('_227_1158_Open_Text').style.display='none'; document.getElementById('_227_1158_Closed_Image').style.display='inline'; document.getElementById('_227_1158_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=_227_1158_Closed_Image style="DISPLAY: none"
onclick="this.style.display='none'; document.getElementById('_227_1158_Closed_Text').style.display='none'; document.getElementById('_227_1158_Open_Image').style.display='inline'; document.getElementById('_227_1158_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"
align=top></SPAN><SPAN style="COLOR: rgb(0,0,255)">public</SPAN><SPAN
style="COLOR: rgb(0,0,0)"> </SPAN><SPAN
style="COLOR: rgb(0,0,255)">class</SPAN><SPAN
style="COLOR: rgb(0,0,0)"> HttpClientTest</SPAN><SPAN
id=_227_1158_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=_227_1158_Open_Text><SPAN style="COLOR: rgb(0,0,0)">{<BR><IMG
id=_270_1156_Open_Image
onclick="this.style.display='none'; document.getElementById('_270_1156_Open_Text').style.display='none'; document.getElementById('_270_1156_Closed_Image').style.display='inline'; document.getElementById('_270_1156_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=_270_1156_Closed_Image style="DISPLAY: none"
onclick="this.style.display='none'; document.getElementById('_270_1156_Closed_Text').style.display='none'; document.getElementById('_270_1156_Open_Image').style.display='inline'; document.getElementById('_270_1156_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
style="COLOR: rgb(0,0,255)">public</SPAN><SPAN
style="COLOR: rgb(0,0,0)"> </SPAN><SPAN
style="COLOR: rgb(0,0,255)">static</SPAN><SPAN
style="COLOR: rgb(0,0,0)"> </SPAN><SPAN
style="COLOR: rgb(0,0,255)">void</SPAN><SPAN
style="COLOR: rgb(0,0,0)"> main(String[] args) </SPAN><SPAN
id=_270_1156_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=_270_1156_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)">构造HttpClient的实例</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)"> HttpClient httpClient </SPAN><SPAN
style="COLOR: rgb(0,0,0)">=</SPAN><SPAN
style="COLOR: rgb(0,0,0)"> </SPAN><SPAN
style="COLOR: rgb(0,0,255)">new</SPAN><SPAN
style="COLOR: rgb(0,0,0)"> 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/InBlock.gif"
align=top> </SPAN><SPAN style="COLOR: rgb(0,128,0)">//</SPAN><SPAN
style="COLOR: rgb(0,128,0)">创建GET方法的实例</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 getMethod </SPAN><SPAN
style="COLOR: rgb(0,0,0)">=</SPAN><SPAN
style="COLOR: rgb(0,0,0)"> </SPAN><SPAN
style="COLOR: rgb(0,0,255)">new</SPAN><SPAN
style="COLOR: rgb(0,0,0)"> GetMethod(</SPAN><SPAN
style="COLOR: rgb(0,0,0)">"</SPAN><SPAN
style="COLOR: rgb(0,0,0)">http://www.google.com.cn</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> </SPAN><SPAN style="COLOR: rgb(0,128,0)">//</SPAN><SPAN
style="COLOR: rgb(0,128,0)">使用系统提供的默认的恢复策略</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.getParams().setParameter(HttpMethodParams.RETRY_HANDLER,<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(0,0,255)">new</SPAN><SPAN
style="COLOR: rgb(0,0,0)"> DefaultHttpMethodRetryHandler());<BR><IMG
id=_554_879_Open_Image
onclick="this.style.display='none'; document.getElementById('_554_879_Open_Text').style.display='none'; document.getElementById('_554_879_Closed_Image').style.display='inline'; document.getElementById('_554_879_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=_554_879_Closed_Image style="DISPLAY: none"
onclick="this.style.display='none'; document.getElementById('_554_879_Closed_Text').style.display='none'; document.getElementById('_554_879_Open_Image').style.display='inline'; document.getElementById('_554_879_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 style="COLOR: rgb(0,0,255)">try</SPAN><SPAN
style="COLOR: rgb(0,0,0)"> </SPAN><SPAN id=_554_879_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=_554_879_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)">执行getMethod</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)"> </SPAN><SPAN
style="COLOR: rgb(0,0,255)">int</SPAN><SPAN
style="COLOR: rgb(0,0,0)"> statusCode </SPAN><SPAN
style="COLOR: rgb(0,0,0)">=</SPAN><SPAN
style="COLOR: rgb(0,0,0)"> httpClient.executeMethod(getMethod);<BR><IMG
id=_669_751_Open_Image
onclick="this.style.display='none'; document.getElementById('_669_751_Open_Text').style.display='none'; document.getElementById('_669_751_Closed_Image').style.display='inline'; document.getElementById('_669_751_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=_669_751_Closed_Image style="DISPLAY: none"
onclick="this.style.display='none'; document.getElementById('_669_751_Closed_Text').style.display='none'; document.getElementById('_669_751_Open_Image').style.display='inline'; document.getElementById('_669_751_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
style="COLOR: rgb(0,0,255)">if</SPAN><SPAN
style="COLOR: rgb(0,0,0)"> (statusCode </SPAN><SPAN
style="COLOR: rgb(0,0,0)">!=</SPAN><SPAN
style="COLOR: rgb(0,0,0)"> HttpStatus.SC_OK) </SPAN><SPAN
id=_669_751_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=_669_751_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> System.err.println(</SPAN><SPAN
style="COLOR: rgb(0,0,0)">"</SPAN><SPAN
style="COLOR: rgb(0,0,0)">Method failed: </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> </SPAN><SPAN
style="COLOR: rgb(0,0,0)">+</SPAN><SPAN
style="COLOR: rgb(0,0,0)"> getMethod.getStatusLine());<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/InBlock.gif"
align=top> </SPAN><SPAN
style="COLOR: rgb(0,128,0)">//</SPAN><SPAN
style="COLOR: rgb(0,128,0)">读取内容 </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)"> </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();<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)">处理内容</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(0,0,255)">new</SPAN><SPAN
style="COLOR: rgb(0,0,0)"> String(responseBody));<BR><IMG
id=_905_1031_Open_Image
onclick="this.style.display='none'; document.getElementById('_905_1031_Open_Text').style.display='none'; document.getElementById('_905_1031_Closed_Image').style.display='inline'; document.getElementById('_905_1031_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"
⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -