技術標籤：Javajavajdkjvmbugtomcat

java.lang.StringIndexOutOfBoundsException: String index out of range: -1
	at java.lang.String.substring(String.java:1967)
	at com.java2nb.novel.core.crawl.CrawlParser.parseBookIndexAndContent(CrawlParser.java:219)
	at com.java2nb.novel.service.impl.CrawlServiceImpl.parseBookAndSave(
 
CrawlServiceImpl.java:286)
	at com.java2nb.novel.service.impl.CrawlServiceImpl.parseBookList(CrawlServiceImpl.java:229)
	at com.java2nb.novel.service.impl.CrawlServiceImpl.lambda$openOrCloseCrawl$0(CrawlServiceImpl.java:115)
	at java.lang.Thread.run(Thread.java:748)

出錯的程式碼：

content = content.substring
 
(0, content.indexOf(ruleBean.getContentEnd()));

原因分析：陣列下標越界，解決辦法如下：

  if (content.indexOf(ruleBean.getContentEnd()) != -1)
    content = content.substring(0, content.indexOf(ruleBean.getContentEnd()));