Form parameters should be in UTF-8 encoding [SPR-11779]

[spring-projects-issues]

Adam Berlin opened SPR-11779 and commented

Our application needs to receive UTF-8 from forms, but out of the box our high byte characters were getting mutilated.

Digging through the stack, we found that by default our RequestMappingHandlerAdapter has a coyoteRequest (a couple layers down within other request wrappers) with tomcat http parameters with an encoding attribute of "ISO-8859-1".

We were able to solve this in our application by manually setting the encoding to UTF-8:

@Configuration
public class FilterConfig {
    @Bean
    public Filter encodingFilter() {
        CharacterEncodingFilter encodingFilter = new CharacterEncodingFilter();
        encodingFilter.setEncoding("UTF-8");
        return encodingFilter;
    }
}

We'd love it if the default encoding, instead of ISO-8859-1, were the more ubiquitous UTF-8.

Thanks,
taavo (tsmith@pivotallabs.com) & tim (tjohnson@pivotallabs.com)

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Issue Links:

• PathVariable encoding fails if request charset is not set [SPR-11474] #16099 PathVariable encoding fails if request charset is not set

[spring-projects-issues]

Stéphane Nicoll commented

This is somewhat related to #16099 and would probably be a duplicate even though the description is different.

[spring-projects-issues]

Stéphane Nicoll commented

We discussed this internally and changing this value would have a lot of side effects on existing apps. It turns out that the original route was the good one so I've created a boot issue for this. Check #1182