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µÚ1 ÕÂ ÍøÂçÅÀ³æ¸ÅÊöÓëÔ­Àí ............................................................................ 1
1.1 ÍøÂçÅÀ³æ¼ò½é ............................................................................................. 1
1.2 ÍøÂçÅÀ³æ·ÖÀà ............................................................................................. 2
1.3 ÍøÂçÅÀ³æÁ÷³Ì ............................................................................................. 4
1.4 ÍøÂçÅÀ³æµÄ²É¼¯²ßÂÔ ................................................................................. 5
1.5 Ñ§Ï°ÍøÂçÅÀ³æµÄ½¨Òé ................................................................................. 5
1.6 ±¾ÕÂС½á ..................................................................................................... 6
µÚ2 ÕÂ ÍøÂçÅÀ³æÉæ¼°µÄJava »ù´¡ÖªÊ¶ ........................................................... 7
2.1 ¿ª·¢»·¾³µÄ´î½¨ ......................................................................................... 7
2.1.1 JDK µÄ°²×°¼°»·¾³±äÁ¿ÅäÖà .......................................................... 7
2.1.2 Eclipse µÄÏÂÔØ .................................................................................. 9
2.2 »ù±¾Êý¾ÝÀàÐÍ ........................................................................................... 10
2.3 Êý×é ........................................................................................................... 11
2.4 Ìõ¼þÅжÏÓëÑ­»· ....................................................................................... 12
2.5 ¼¯ºÏ ........................................................................................................... 15
2.5.1 List ºÍSet ¼¯ºÏ .............................................................................. 15
2.5.2 Map ¼¯ºÏ ........................................................................................ 16
2.5.3 Queue ¼¯ºÏ ..................................................................................... 17
2.6 ¶ÔÏóÓëÀà ................................................................................................... 19
2.7 String Àà ..................................................................................................... 21
2.8 ÈÕÆÚºÍʱ¼ä´¦Àí ....................................................................................... 23
2.9 ÕýÔò±í´ïʽ ............................................................................................... 26
2.10 Maven ¹¤³ÌµÄ´´½¨ ................................................................................. 29
2.11 log4j µÄʹÓà ............................................................................................ 33
2.12 ±¾ÕÂС½á ................................................................................................. 40
µÚ3 Õ HTTP ЭÒé»ù´¡ÓëÍøÂç×¥°ü ............................................................... 41
3.1 HTTP ЭÒé¼ò½é ........................................................................................ 41
3.2 URL ........................................................................................................... 42
3.3 ±¨ÎÄ ........................................................................................................... 44
3.4 HTTP ÇëÇó·½·¨ ........................................................................................ 46
3.5 HTTP ״̬Âë ............................................................................................ 46
3.5.1 ״̬Âë2XX .................................................................................... 47
3.5.2 ״̬Âë3XX .................................................................................... 47
3.5.3 ״̬Âë4XX .................................................................................... 48
3.5.4 ״̬Âë5XX .................................................................................... 48
3.6 HTTP ÐÅϢͷ ............................................................................................ 48
3.6.1 ͨÓÃÍ· ............................................................................................ 49
3.6.2 ÇëÇóÍ· ............................................................................................ 52
3.6.3 ÏìӦͷ ............................................................................................ 55
3.6.4 ʵÌåÍ· ............................................................................................ 56
3.7 HTTP ÏìÓ¦ÕýÎÄ ........................................................................................ 57
3.7.1 HTML ............................................................................................. 58
3.7.2 XML ............................................................................................... 60
3.7.3 JSON ............................................................................................... 61
3.8 ÍøÂç×¥°ü ................................................................................................... 64
3.8.1 ¼ò½é ................................................................................................ 64
3.8.2 ʹÓÃÇé¾³ ........................................................................................ 65
3.8.3 ä¯ÀÀÆ÷ʵÏÖÍøÂç×¥°ü ..................................................................... 65
3.8.4 ÆäËûÍøÂç×¥°ü¹¤¾ßÍÆ¼ö ................................................................. 70
3.9 ±¾ÕÂС½á ................................................................................................... 70
µÚ4 ÕÂ ÍøÒ³ÄÚÈÝ»ñÈ¡ .................................................................................... 71
4.1 Jsoup µÄʹÓà ............................................................................................. 71
4.1.1 jar °üµÄÏÂÔØ ................................................................................... 71
4.1.2 ÇëÇóURL ....................................................................................... 72
4.1.3 ÉèÖÃÍ·ÐÅÏ¢ .................................................................................... 75
4.1.4 Ìá½»ÇëÇó²ÎÊý ................................................................................ 78
4.1.5 ³¬Ê±ÉèÖà ........................................................................................ 80
4.1.6 ´úÀí·þÎñÆ÷µÄʹÓà ......................................................................... 81
4.1.7 ÏìӦתÊä³öÁ÷£¨Í¼Æ¬¡¢PDF µÈµÄÏÂÔØ£©..................................... 83
4.1.8 HTTPS ÇëÇóÈÏÖ¤ ........................................................................... 85
4.1.9 ´óÎļþÄÚÈÝ»ñÈ¡ÎÊÌâ ..................................................................... 89
4.2 HttpClient µÄʹÓà ...................................................................................... 91
4.2.1 jar °üµÄÏÂÔØ ................................................................................... 91
4.2.2 ÇëÇóURL ....................................................................................... 92
4.2.3 EntityUtils Àà .................................................................................. 97
4.2.4 ÉèÖÃÍ·ÐÅÏ¢ .................................................................................... 98
4.2.5 POST Ìá½»±íµ¥ ............................................................................ 100
4.2.6 ³¬Ê±ÉèÖà ...................................................................................... 103
4.2.7 ´úÀí·þÎñÆ÷µÄʹÓà ....................................................................... 105
4.2.8 ÎļþÏÂÔØ ...................................................................................... 106
4.2.9 HTTPS ÇëÇóÈÏÖ¤ ......................................................................... 108
4.2.10 ÇëÇóÖØÊÔ .................................................................................... 111
4.2.11 ¶àÏß³ÌÖ´ÐÐÇëÇó ......................................................................... 114
4.3 URLConnection ÓëHttpURLConnection ................................................ 117
4.3.1 ʵÀý»¯ .......................................................................................... 117
4.3.2 »ñÈ¡ÍøÒ³ÄÚÈÝ .............................................................................. 118
4.3.3 GET ÇëÇó ...................................................................................... 118
4.3.4 Ä£ÄâÌá½»±íµ¥£¨POST ÇëÇó£© .................................................... 119
4.3.5 ÉèÖÃÍ·ÐÅÏ¢ .................................................................................. 120
4.3.6 Á¬½Ó³¬Ê±ÉèÖà .............................................................................. 121
4.3.7 ´úÀí·þÎñÆ÷µÄʹÓà ....................................................................... 122
4.3.8 HTTPS ÇëÇóÈÏÖ¤ ......................................................................... 122
4.4 ±¾ÕÂС½á ................................................................................................. 124
µÚ5 ÕÂ ÍøÒ³ÄÚÈݽâÎö .................................................................................. 125
5.1 HTML ½âÎö ............................................................................................. 125
5.1.1 CSS Ñ¡ÔñÆ÷ .................................................................................. 125
5.1.2 Xpath Óï·¨ .................................................................................... 127
5.1.3 Jsoup ½âÎöHTML ........................................................................ 128
5.1.4 HtmlCleaner ½âÎöHTML ............................................................. 135
5.1.5 HTMLParser ½âÎöHTML ............................................................ 139
5.2 XML ½âÎö ............................................................................................... 144
5.3 JSON ½âÎö ............................................................................................... 145
5.3.1 JSON УÕý .................................................................................... 145
5.3.2 org.json ½âÎöJSON ...................................................................... 147
5.3.3 Gson ½âÎöJSON........................................................................... 152
5.3.4 Fastjson ½âÎöJSON ...................................................................... 157
5.3.5 ÍøÂçÅÀ³æÊµÕ½ÑÝÁ· ....................................................................... 159
5.4 ±¾ÕÂС½á ................................................................................................. 165
µÚ6 ÕÂ ÍøÂçÅÀ³æÊý¾Ý´æ´¢ ........................................................................... 166
6.1 ÊäÈëÁ÷ÓëÊä³öÁ÷ ..................................................................................... 166
6.1.1 ¼ò½é .............................................................................................. 166
6.1.2 File Àà ........................................................................................... 166
6.1.3 Îļþ×Ö½ÚÁ÷ .................................................................................. 169
6.1.4 Îļþ×Ö·ûÁ÷ .................................................................................. 172
6.1.5 »º³åÁ÷ .......................................................................................... 176
6.1.6 ÍøÂçÅÀ³æÏÂÔØÍ¼Æ¬ÊµÕ½ ............................................................... 180
6.1.7 ÍøÂçÅÀ³æÎı¾´æ´¢ÊµÕ½ ............................................................... 184
6.2 Excel ´æ´¢ ............................................................................................... 188
6.2.1 Jxl µÄʹÓà ..................................................................................... 188
6.2.2 POI µÄʹÓà ................................................................................... 191
6.2.3 ÅÀ³æ°¸Àý ...................................................................................... 198
6.3 MySQL Êý¾Ý´æ´¢ ................................................................................... 202
6.3.1 Êý¾Ý¿âµÄ»ù±¾¸ÅÄî ....................................................................... 203
6.3.2 SQL Óï¾ä»ù´¡ .............................................................................. 203
6.3.3 Java ²Ù×÷Êý¾Ý¿â .......................................................................... 207
6.3.4 ÅÀ³æ°¸Àý ...................................................................................... 217
6.4 ±¾ÕÂС½á ................................................................................................. 219
µÚ7 ÕÂ ÍøÂçÅÀ³æÊµÕ½ÏîÄ¿ ........................................................................... 220
7.1 ÐÂÎÅÊý¾Ý²É¼¯ ......................................................................................... 220
7.1.1 ²É¼¯µÄÍøÒ³ .................................................................................. 220
7.1.2 ¿ò¼Ü½éÉÜ ...................................................................................... 222
7.1.3 ³ÌÐò±àд ...................................................................................... 223
7.2 ÆóÒµÐÅÏ¢²É¼¯ ......................................................................................... 235
7.2.1 ²É¼¯µÄÍøÒ³ .................................................................................. 235
7.2.2 ¿ò¼Ü½éÉÜ ...................................................................................... 238
7.2.3 µÚÒ»²ãÐÅÏ¢²É¼¯........................................................................... 239
7.2.4 µÚ¶þ²ãÐÅÏ¢²É¼¯........................................................................... 248
7.3 ¹ÉƱÐÅÏ¢²É¼¯ ......................................................................................... 256
7.3.1 ²É¼¯µÄÍøÒ³ .................................................................................. 256
7.3.2 ¿ò¼Ü½éÉÜ ...................................................................................... 257
7.3.3 ³ÌÐòÉè¼Æ ...................................................................................... 258
7.3.4 Quartz ʵÏÖ¶¨Ê±µ÷¶ÈÈÎÎñ ........................................................... 267
7.4 ±¾ÕÂС½á ................................................................................................. 271
µÚ8 Õ Selenium µÄʹÓà ............................................................................. 272
8.1 Selenium ¼ò½é ......................................................................................... 272
8.2 Java Selenium »·¾³´î½¨ ......................................................................... 272
8.3 ä¯ÀÀÆ÷µÄ²Ù¿Ø ......................................................................................... 274
8.4 ÔªËØ¶¨Î» ................................................................................................. 276
8.4.1 id ¶¨Î» .......................................................................................... 276
8.4.2 name ¶¨Î» ..................................................................................... 277
8.4.3 class ¶¨Î» ...................................................................................... 278
8.4.4 tag name ¶¨Î» ............................................................................... 278
8.4.5 link text ¶¨Î» ................................................................................ 278
8.4.6 Xpath ¶¨Î» .................................................................................... 279
8.4.7 CSS Ñ¡ÔñÆ÷¶¨Î» .......................................................................... 279
8.5 Ä£ÄâµÇ¼ ................................................................................................. 280
8.6 ¶¯Ì¬¼ÓÔØJavaScript Êý¾Ý£¨²Ù×÷¹ö¶¯Ìõ£© ........................................... 283
8.7 Òþ²Øä¯ÀÀÆ÷ ............................................................................................. 285
8.8 ½ØÈ¡ÑéÖ¤Âë ............................................................................................. 287
8.9 ±¾ÕÂС½á ................................................................................................. 291
µÚ9 ÕÂ ÍøÂçÅÀ³æ¿ªÔ´¿ò¼Ü ........................................................................... 292
9.1 Crawler4j µÄʹÓà .................................................................................... 292
9.1.1 Crawler4j ¼ò½é.............................................................................. 292
9.1.2 jar °üµÄÏÂÔØ ................................................................................. 292
9.1.3 ÈëÃ۸Àý ...................................................................................... 293
9.1.4 Ïà¹ØÅäÖà ...................................................................................... 297
9.1.5 ͼƬµÄ²É¼¯ .................................................................................. 300
9.1.6 Êý¾Ý²É¼¯Èë¿â .............................................................................. 304
9.2 WebCollector µÄʹÓà .............................................................................. 312
9.2.1 WebCollector ¼ò½é ....................................................................... 312
9.2.2 jar °üµÄÏÂÔØ ................................................................................. 313
9.2.3 ÈëÃ۸Àý ...................................................................................... 313
9.2.4 Ïà¹ØÅäÖà ...................................................................................... 318
9.2.5 HTTP ÇëÇóÀ©Õ¹............................................................................ 319
9.2.6 ·­Ò³Êý¾Ý²É¼¯ .............................................................................. 327
9.2.7 ͼƬµÄ²É¼¯ .................................................................................. 331
9.2.8 Êý¾Ý²É¼¯Èë¿â .............................................................................. 334
9.3 WebMagic µÄʹÓà ................................................................................... 347
9.3.1 WebMagic ¼ò½é ............................................................................ 347
9.3.2 jar °üµÄÏÂÔØ ................................................................................. 347
9.3.3 ÈëÃ۸Àý£¨·­Ò³Êý¾Ý²É¼¯£© ....................................................... 347
9.3.4 Ïà¹ØÅäÖà ...................................................................................... 351
9.3.5 Êý¾Ý´æ´¢·½Ê½ .............................................................................. 352
9.3.6 Êý¾Ý²É¼¯Èë¿â .............................................................................. 355
9.3.7 ͼƬµÄ²É¼¯ .................................................................................. 365
9.4 ±¾ÕÂС½á ................................................................................................. 368 [1]

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