提取网页图片链接的JAVA代码.

1// AnalizeIMG.java 2 3 // 主程序 4 5 import java.io.BufferedReader; 6import java.io.File; 7 import java.io.FileReader; 8 import java.io.FileWriter; 9 import

java.io.IOException; 10 11 12 public class AnalizeIMG { 13 14 public void p(String s 15 { 16 System.out.println(s; 17 } 18 19 public void analizeFile(String infile,String outfile throws Exception 20 { 21 File file = new File(infile; 22 if (file == null || ! file.exists( { 23 p( "File" + infile + "not exits !" ; 24 } 25 26 if ( ! file.canRead( { 27 p( "File" + infile +" can't read !" ; 28 29 } 30 31 String strLine = null ; 32 FileReader frd = new FileReader(infile; 33 BufferedReader bufferedReader = new BufferedReader(frd; 34 try { 35 AnalizeWebParse parse = new AnalizeWebParse(; 36 String s =

parse.parse(bufferedReader; 37 38 createFile(outfile,s; 39 40 } catch (Exception ex { 41 throw ex; 42 } finally { 43 frd.close(; 44 bufferedReader.close(; 45 } 46 } 47 48 private void createFile(String filename, String content { 49 FileWriter f = null ; 50 try { 51 f = new FileWriter(filename; 52 if (f == null || content == null { 53 return ; 54 } 55 56

f.write(content; 57 f.flush(; 58 f.close(; 59 60 } catch (Exception e { 61 62 } finally { 63 if (f!= null { 64 try { 65 f.close(; 66 } catch (Exception e { 67 68 } 69 } 70 } 71 } 72

73public static void main(String arg[] 74 { 75 AnalizeIMG ana = new AnalizeIMG(; 76 try { 77 ana.analizeFile("E:\\1.txt" , "E:\\out.lst"; 78 } catch (Exception ex { 79

ex.printStackTrace(; 80 } 81 } 82 } 83 84 第二个文件时解析文件 1// AnalizeWebParse.java 2 3 // 网页分析代码，需要用户根据自己需要做适当修改 4 5 import java.io.BufferedReader; 6 import java.io.StringReader; 7 import

java.util.regex.Pattern; 8 9 import javax.swing.text.MutableAttributeSet; 10 import javax.swing.text.html.HTML; 11 import

javax.swing.text.html.HTMLEditorKit.ParserCallback; 12 import

javax.swing.text.html.parser.ParserDelegator; 13 14 public class AnalizeWebParse extends ParserCallback { 15 16 StringBuffer sb = new StringBuffer(; 17 18 boolean start =false ; 19 boolean finished =false ; 20 21 public void p(String s 22 { 23

System.out.println(s; 24 } 25 26 public void handleStartTag(HTML.Tag tag, MutableAttributeSet attribs, 27 int pos { 28 29 if (finished == true 30 { 31 return ; 32 }

33 34 if (start == false { 35 if (tag == HTML.Tag.DIV { 36 String cla = (String attribs 37 .getAttribute(HTML.Attribute.CLASS; 38 if (cla == null { 39 return ; 40 } 41 42 if (cla.indexOf("body"!= - 1 { 43 // Start 44 start = true ; 45 } 46 } 47 } 48 } 49 50 public void handleEndTag(HTML.Tag tag, int pos { 51 if (tag == HTML.Tag.DIV && start == true && finished == false { 52 finished = true ; 53 } 54 } 55 56 public void handleText( cha

r [] text, int pos { 57 58 } 59 60 public void handleSimpleTag(HTML.Tag t, MutableAttributeSet a, int pos { 61 if (t == HTML.Tag.IMG { 62 // get a src 63 String src = (String a.getAttribute(HTML.Attribute.SRC; 64 if (src == null { 65 return ; 66 } 67 68 if (Pattern.matches("^(http://.+" , src { 69 sb.append(src.append("\n"; 70 } 71 } 72 } 73 74 public String parse(BufferedReader file throws Exception { 75 if (file == null 76 { 77 return null ; 78 } 79 80 ParserDelegator pd = new ParserDelegator(; 81 try { 82

pd.parse(file, this , true ; 83 } catch(Exception e { 84 throw e; 85 } 86 87 return

sb.toString(; 88 } 89 }