Question

我正在尝试解决这个问题：

Get document on some condition in elastic search java API

我的逻辑是首先我们得到所有月份的位置，在字符串中，之后我提取下一个单词，即4位数或2位数年份，然后使用此计算差异。

为了获得几个月的位置，我正在使用这段代码： -

       String[] threeMonthArray=new String[]{" Jan "," Feb "," Mar "," Apr "," May "," June "," July "," Aug "," Sep "," Oct "," Nov "," Dec "};
        String[] completeMonthArray=new String[]{"January","Feburary","March","April","May","June","July","Augest","September","October","November","December"};
       List indexArray=new ArrayList();
        for(int i=0;i<threeMonthArray.length;i++){
            int index = parsedContent.toLowerCase().indexOf(threeMonthArray[i].toLowerCase());
            while (index >= 0) {
                System.out.println(threeMonthArray[i]+" : "+index+"------");
                indexArray.add(index);
                index = parsedContent.toLowerCase().indexOf(threeMonthArray[i].toLowerCase(), index + 1);
            }
            // System.out.println(threeMonthArray[i]+" : "+parsedContent.toLowerCase().indexOf(threeMonthArray[i].toLowerCase())+"------");
        }
       Collections.sort(indexArray);
        System.out.println(   indexArray);

它显示了这个输出： -

 [2873, 2884, 3086, 3098, 4303, 4315, 6251, 6262, 8130, 8142, 15700, 15711]

我的位置正确。我的问题是如何获得必须是数字的下一个单词。

Jun 2010 to Sep 2011                First Document          
Jun 2009 to Aug 2011                Second Document             
Nov 2011 – Sep 2012                 Third Document   
Nov  2012- Sep 2013                 Forth Document

Answer 1

您可以使用正则表达式查找从上次找到的月份开始的下一个数字：

Pattern p = Pattern.compile("\\d+");
Matcher m = p.matcher(parsedContent);
if (m.find(index)) {
    String year = m.group();
}

使用java中的索引位置的单词后面的下一个数字

1 个答案: