如何从字符串中获取文本计数

Question

我有以下字符串

   Salary and Benefits <span class="read-barfull"></span><span class="read-barfull"></span><span class="read-barfull"></span><span class="read-barfull"></span><span class="read-barfull"></span>
Job Security <span class="read-barfull"></span><span class="read-barfull"></span><span class="read-barfull"></span><span class="read-barfull"></span><span class="read-barfull"></span>
Career Growth <span class="read-barfull"></span><span class="read-barfull"></span><span class="read-barfull"></span><span class="read-barfull"></span><span class="read-barnone"></span>
Work Environment <span class="read-barfull"></span><span class="read-barfull"></span><span class="read-barfull"></span><span class="read-barfull"></span><span class="read-barfull"></span>
CEO Rating <span class="read-barfull"></span><span class="read-barfull"></span><span class="read-barfull"></span><span class="read-barfull"></span><span class="read-barfull"></span>

我需要像下面的格式显示计数（"read-barfull" 计数）

Salary and Benefits 5
Job Security 5
Career Growth 4
Work Environment 5
CEO Rating 5

请帮我获取格式提前谢谢你

Answer 1

如果您要计算的 "token" 字符串是静态的（或至少 "predefined"），您可以执行如下操作，它使用 Apache commons-lang：

String str = "Salary and Benefits <span class=\"read-barfull\"></span><span class=\"read-barfull\"></span><span class=\"read-barfull\"></span><span class=\"read-barfull\"></span><span class=\"read-barfull\"></span>";
String spanText = "<span class=\"read-barfull\"></span>";
int count = StringUtils.countMatches(str, spanText);

Answer 2

将您的逻辑分为两种方式

创建 List<String>
迭代列表并使用字符串缓冲区或拆分搜索单词并获得计数器增量。 {做简单的逻辑来分离 "read-barfull" 和字符串 "key"（ie.Salary 和 Benefits）
从中获取计数值。
创建 Map<String,Integer> 仅此而已。

Answer 3

以下是使用 Jsoup 的方法（因为您的问题已用它标记）。总体思路是

逐行阅读HTML，
获取HTML这一行表示的文本
select 所有 <span class="read-barfull"></span> 元素（不管它们是否为空，但您可以根据需要更改它）-简单 select("span.read-barfull") 将为我们完成此操作
打印 selected span 个元素的计数（size() 在这里很有用）

代码：

String html = "Salary and Benefits <span class=\"read-barfull\"></span><span class=\"read-barfull\"></span><span class=\"read-barfull\"></span><span class=\"read-barfull\"></span><span class=\"read-barfull\"></span>\r\n" + 
        "Job Security <span class=\"read-barfull\"></span><span class=\"read-barfull\"></span><span class=\"read-barfull\"></span><span class=\"read-barfull\"></span><span class=\"read-barfull\"></span>\r\n" + 
        "Career Growth <span class=\"read-barfull\"></span><span class=\"read-barfull\"></span><span class=\"read-barfull\"></span><span class=\"read-barfull\"></span><span class=\"read-barnone\"></span>\r\n" + 
        "Work Environment <span class=\"read-barfull\"></span><span class=\"read-barfull\"></span><span class=\"read-barfull\"></span><span class=\"read-barfull\"></span><span class=\"read-barfull\"></span>\r\n" + 
        "CEO Rating <span class=\"read-barfull\"></span><span class=\"read-barfull\"></span><span class=\"read-barfull\"></span><span class=\"read-barfull\"></span><span class=\"read-barfull\"></span>";

Scanner sc = new Scanner(html);
while(sc.hasNextLine()){
    Document doc = Jsoup.parse(sc.nextLine());
    System.out.println(doc.text()+" "+doc.select("span.read-barfull").size());
}

输出：

Salary and Benefits 5
Job Security 5
Career Growth 4
Work Environment 5
CEO Rating 5

如何从字符串中获取文本计数

How to get the text count from String

java

html

jsoup