How to use regularity to remove spaces between tags and tags in html

Use regular expressions to replace the string matching the spaces between two labels to remove the spaces in HTML. The steps include: Defining the regular expression to match the space between the HTML tag and the tag. Use regular expression replacement, replace the capture group (space between label and label) with the matching string.

How to use regular expressions to remove spaces between tags and tags in HTML

method:

Use regular expressions to replace the string that matches the space between two labels.

step:

1. Define regular expressions:

    <code>(] >)\s (] >)</code>

• ] > Match any HTML tag.
• \s matches one or more space characters.

2. Use regular expressions to replace:

    <code>String html = "<h1 id="标题">标题</h1>
   <p>内容</p>"; String noSpaceHtml = html.replaceAll("(] >)\\s (] >)", "$1$2");</code>

• replaceAll() method replaces the original string with the string matched by the regular expression.
• $1 and $2 are capture groups that represent spaces between labels and labels, respectively.

Example:

Enter HTML:

 <code><h1 id="标题-h">标题<h1></h1>
</h1>
<p>内容</p></code>

Output HTML (spaces removed):

 <code><h1 id="标题">标题</h1>
<p>内容</p></code>

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