Edit Question - KnowledgeHub

Title Body

We are building a restful api using Spring MVC and freemarker as the templating language. We have chosen to build json responses in the freemarker Example freemarker.ftl: { "field1" : "${response.value1}", "field2" : "${response.value2}" } We get a problem when the strings in the values contain quotation marks (or any of the other characters in the JSON syntax). The question: How can I escape these strings using freemarker? We have looked at ?xml or ?html but they do not cover all relevant characters (such as \ ). EDIT: ?js_string will escape the string to comform with JavaScript. And since JSON is based on JavaScript (JavaScript Object Notation), it will work. EDIT2: In case a single-quote pops up, ?js_string will escape it which again leads to invalid JSON. The hotfix for it is: ${variable?js_string?replace("\\'", "\'")} and if you really want to be picky: ${variable?js_string?replace("\\'", "\'")?replace("\\>",">")} Alternatively if you use Spring: http://www.springsurf.org/sites/1.0.0.M3/spring-webscripts/spring-webscripts-documentation/reference/html-single/index.html#js-api-index-org.springframework.extensions.webscripts.json.jsonutils

Tags (comma-separated) Cancel