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    <p>First thing you should use a CSV parsing library to parse the comma separated values. <strong>Correctly</strong> parsing CSV data isn't as trivial as it first seems. There are lots of <a href="http://jumpingbean.co.za/blogs/java-csv-file-parsing" rel="nofollow">good arguments</a> to not reinvent that wheel.</p> <p>This will also future proof your code and be code you don't have to test or maintain.</p> <p>I know the temptation to do something like <code>data.split(',');</code> is strong, but it is fragile and brittle solution. For just one example, what if any of the values contain the ','.</p> <p>Second thing you should do is then parse the pairs. Again the temptation to use <code>String.split("=");</code> will be strong, but it can be brittle and fragile if the right hand side of the <code>=</code> has an <code>=</code> in it. </p> <p>I am not a blind proponent of regular expressions, but used with restraint they can be just the right tool for the job. Here is the regular expression to parse the name value pairs.</p> <p>The regular expression <a href="http://www.rubular.com/r/UFOJBOEj9x" rel="nofollow">^(.*)\s?=\s?("?([^"]*)"?|"(.*)")$</a>, click the regular expression to test it online interactively. This works even for multiple double quotes in the right hand side of the name value pair.</p> <p>This will match only what is on the left side of the first <code>=</code> and everything else on the right hand side, and strip the optional <code>"</code> off the string values, while still matching the non-quoted number values.</p> <p>Given a <code>List&lt;String&gt; list</code> of the encoded name value pairs.</p> <pre><code>final Pattern p = Pattern.compile("^(.*)\s?=\s?("?([^"]*)"?|"(.*)")$"); final Map&lt;String, String&gt; map = new HashMap&lt;String, String&gt;(list.size()); for (final String nvp : list) { final Matcher m = p.matcher(nvp); m.matches(); final String name = m.group(1); final String value = m.group(2); System.out.format("name = %s | value = %s\n", name, value); } </code></pre>
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    1. POBest way to retrieve a value from a string java
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    1. COI agree that `Spring.split()` is naïve, but a matcher on `=` is somehow the same approach.
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      1. USyves amsellem
    2. COYour solution is making assumption on the input format and can't be considered as a valid general solution...
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      1. USJérôme Verstrynge
    3. CONot supposed to be a general solution, there was a specific input string posted that they want to parse. I posted working code that actually parses the input string using modern idiomatic Java, downvote all you want.
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