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jsongrailsgroovygsp

Parse a JSON Array in gsp

I have this JSON array eg:filesList which I receive from my groovy controller:

[{"filenameAndPath":"a","description":"bb"},    {"filenameAndPath":"c","description":"d"},{"filenameAndPath":"e","description":"f"}]

In my gsp I want to render this into a format as such:

Filename and Path 
a
Description
bb
Filename and Path 
c
Description
d
Filename and Path 
e
Description
f

How would I parse the JSON into such labels and fields in a gsp page?

Solution

  • Parse the JSON string in the controller first using the grails.converters.JSON.parse(jsonString) method, then pass the resulting object into your view and iterate over the arrays and objects using the g:each tag.

    When iterating over objects/map entries (like in your {"filenameAndPath":"a","description":"bb"} example), you can use the nice shorthand syntax: <g:each in="${map}" var="key, value">..</g:each>

    For the rest ordinary HTML should be enough.