Display JSON text in freemarker

Question

JSON text:

[{"desc":null,"amount":250,"item":"527"},{"desc":"test","amount":3333.33,"item":"522"},{"desc":null,"amount":3333.33,"item":"522"},{"desc":null,"amount":1500,"item":"520"},{"desc":null,"amount":1560,"item":"519"}]

I tried the following Code but it is not working: <#assign customrecord = record.custpage_custrecord_itemlist?eval /> <#list customrecord as customrecord_line>

<#list customrecord as customrecord_line>

${customrecord_line.item}
${customrecord_line.desc}
${customrecord_line.amount}

</#list>

Note:(record.custpage_custrecord_itemlist is the variable that contains the json text) Please help

Thanks in advance!

Answer 1

There's no JSON parser built into the template language. ?eval parses FTL expressions, not JSON. The two happens to be similar, but not identical. Unlike in JSON, in FTL there's no null . So I guess the error you run into is that null is undefined. A possible workaround is that you do something like <#assign null=''> earlier, so when ?eval sees null , it replaces it with an empty string (which is not very good, but you see what the mechanism is; you could chose some other special value as well).

But the only correct solution would be using a real JSON parser and put the result into the data-model (or to write a TemplateMethodModel that does calls a real JSON parser and returns the result).