Setting 'relaxedQueryChars' for embedded Tomcat

Question

How can I set relaxedQueryChars for Spring Boot embedded Tomcat?

The connector attribute described here, but Spring Boot documentation has no such param

Answer 1

I did this as a working solution for me:

@Bean
public EmbeddedServletContainerCustomizer containerCustomizer(){
    return new MyCustomizer();
}

private static class MyCustomizer implements EmbeddedServletContainerCustomizer {

    @Override
    public void customize(ConfigurableEmbeddedServletContainer factory) {
        if(factory instanceof TomcatEmbeddedServletContainerFactory) {
            customizeTomcat((TomcatEmbeddedServletContainerFactory) factory);
        }
    }

    void customizeTomcat(TomcatEmbeddedServletContainerFactory factory) {
        factory.addConnectorCustomizers((TomcatConnectorCustomizer) connector -> {
            connector.setAttribute("relaxedPathChars", "<>[\\]^`{|}");
            connector.setAttribute("relaxedQueryChars", "<>[\\]^`{|}");
        });
    }

}