请教版主关于正则表达式匹配的问题 求解答

[EdronCai]

import us.codecraft.webmagic.Page;
import us.codecraft.webmagic.Site;
import us.codecraft.webmagic.Spider;
import us.codecraft.webmagic.pipeline.JsonFilePipeline;
import us.codecraft.webmagic.processor.PageProcessor;

/**

• @author code4crafter@gmail.com
  
  */
  public class Client58Processor implements PageProcessor {

  public static final String URL_LIST = "http://cs\\.58\\.com/zhaozu/pn\\d+\\/pve_1092_1/?PGTID=0d30000d-0019-\\w+\\-\\w+\\-\\w+\\&ClickID=1";

  public static final String URL_POST = "http://cs\\.58\\.com/zhaozu/\\w+\\.shtml?psid=124606730193983807135678330&entinfo=\\w+\\&iuType=p_0&PGTID=0d30000d-0019-e991-490c-51f69d09bf8f&ClickID=\\w+\\";

  private Site site = Site
  .me()
  .setDomain("cs.58.com")
  .setSleepTime(6000)
  .setUserAgent(
  "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_2) AppleWebKit/537.31 (KHTML, like Gecko) Chrome/26.0.1410.65 Safari/537.31");

  @OverRide
  public void process(Page page) {
  // 列表页
  if (page.getUrl().regex(URL_LIST).match()) {
  page.addTargetRequests(page.getHtml().xpath("//div[@Class="tbimg"]").links().regex(URL_POST).all());
  page.addTargetRequests(page.getHtml().links().regex(URL_LIST).all());
  // 文章页
  } else {
  /page.putField("title", page.getHtml().xpath("//div[@Class='headline']"));
  page.putField("content", page.getHtml().xpath("//div[@Class='infocs']"));/
  page.putField("title", page.getHtml().xpath("//div[@Class='filterbar']"));
  page.putField("content", page.getHtml().xpath("//div[@Class='filterbar']"));
  /page.putField("date",
  page.getHtml().xpath("//div[@id='articlebody']//span[@Class='time SG_txtc']").regex("\((.)\)"));*/
  }
  }

  @OverRide
  public Site getSite() {
  return site;
  }

  public static void main(String[] args) {
  Spider.create(new Client58Processor())
  .addUrl("http://cs.58.com/zhaozu/pn1/pve_1092_1/?PGTID=0d30000d-0019-e4b5-3eff-f37b576ebd78&ClickID=1")
  .addPipeline(new JsonFilePipeline("D:\webmagic58\"))
  .run();
  }
  }

如上代码 如何匹配列表数据哦？ 正则表达式匹配不上

[code4craft]

你指的是哪个正则？代码太多了，如果是正则问题，请提供：
待匹配文本
正则表达式

[EdronCai]

待匹配文本
http://cs.58.com/zhaozu/pn1/pve_1092_1/?PGTID=0d30000d-0019-e4b5-3eff-f37b576ebd78&ClickID=1
正则表达式
http://cs\\.58\\.com/zhaozu/pn\\d+\\/pve_1092_1/?PGTID=0d30000d-0019-\\w+\\-\\w+\\-\\w+\\&ClickID=1

[EdronCai]

@code4craft
待匹配文本
http://cs.58.com/zhaozu/pn1/pve_1092_1/?PGTID=0d30000d-0019-e4b5-3eff-f37b576ebd78&ClickID=1
正则表达式
http://cs\\.58\\.com/zhaozu/pn\\d+\\/pve_1092_1/?PGTID=0d30000d-0019-\\w+\\-\\w+\\-\\w+\\&ClickID=1
请求帮忙

[code4craft]

pve_1092_1/\\?
这里?表示之前的字符出现0到1次，所以必须加\

[EdronCai]

@code4craft 好的 我现在试试 马上告知结果

[EdronCai]

@code4craft 非常感谢 正则表达式通过了 只是这些我应该如何查阅呢？在没有你的帮助下 我似乎在文档里面没有发现这个关于正则表达式的点 这个是点是正则表达式的通用情况吧
正则验证通过后 又遇到了这样的问题
[pool-1-thread-1] ERROR [us.codecraft.webmagic.Spider$1] - process request Request{url='http://cs.58.com/zhaozu/pn1/pve_1092_1/?PGTID=0d30000d-0019-e4b5-3eff-f37b576ebd78&ClickID=1', method='null', extras={statusCode=200}, priority=0} error
java.lang.IllegalArgumentException: invalid regex
at us.codecraft.webmagic.selector.RegexSelector.(RegexSelector.java:39) ~[webmagic-core-0.5.2.jar:na]
at us.codecraft.webmagic.selector.RegexSelector.(RegexSelector.java:45) ~[webmagic-core-0.5.2.jar:na]
at us.codecraft.webmagic.selector.Selectors.regex(Selectors.java:12) ~[webmagic-core-0.5.2.jar:na]
at us.codecraft.webmagic.selector.AbstractSelectable.regex(AbstractSelectable.java:77) ~[webmagic-core-0.5.2.jar:na]
at com.goldencloud.office.project.service.Client58Processor.process(Client58Processor.java:29) ~[classes/:na]
at us.codecraft.webmagic.Spider.processRequest(Spider.java:420) ~[webmagic-core-0.5.2.jar:na]
at us.codecraft.webmagic.Spider$1.run(Spider.java:322) ~[webmagic-core-0.5.2.jar:na]
at us.codecraft.webmagic.selector.thread.CountableThreadPool$1.run(CountableThreadPool.java:74) [webmagic-core-0.5.2.jar:na]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_112]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_112]
at java.lang.Thread.run(Thread.java:745) [na:1.8.0_112]
Caused by: java.util.regex.PatternSyntaxException: Unclosed group near index 151
(http://cs\.58\.com/zhaozu/\w+\.shtml?psid=124606730193983807135678330&entinfo=\w+\&iuType=p_0&PGTID=0d30000d-0019-e991-490c-51f69d09bf8f&ClickID=\w+\)
^
at java.util.regex.Pattern.error(Pattern.java:1955) ~[na:1.8.0_112]
at java.util.regex.Pattern.accept(Pattern.java:1813) ~[na:1.8.0_112]
at java.util.regex.Pattern.group0(Pattern.java:2908) ~[na:1.8.0_112]
at java.util.regex.Pattern.sequence(Pattern.java:2051) ~[na:1.8.0_112]
at java.util.regex.Pattern.expr(Pattern.java:1996) ~[na:1.8.0_112]
at java.util.regex.Pattern.compile(Pattern.java:1696) ~[na:1.8.0_112]
at java.util.regex.Pattern.(Pattern.java:1351) ~[na:1.8.0_112]
at java.util.regex.Pattern.compile(Pattern.java:1054) ~[na:1.8.0_112]
at us.codecraft.webmagic.selector.RegexSelector.(RegexSelector.java:37) ~[webmagic-core-0.5.2.jar:na]
... 10 common frames omitted

[code4craft]

正则表达式是通用技术，文档没有提供，搜一下吧。这个issue不再回复了。

[EdronCai]

@code4craft 搜到了 谢谢