UTF-8 encoding in JSP page [duplicate]

Answer 1

The default JSP file encoding is specified by JSR315 as ISO-8859-1. This is the encoding that the JSP engine uses to read the JSP file and it is unrelated to the servlet request or response encoding.

If you have non-latin characters in your JSP files, save the JSP file as UTF-8 with BOM or set pageEncoding in the beginning of the JSP page:

<%@page pageEncoding="UTF-8" %>

---

However, you might want to change the default to UTF-8 globally for all JSP pages. That can be done via web.xml:

    
        /*
        UTF-8
    

Or, when using Spring Boot with an (embedded) Tomcat, via a TomcatContextCustomizer:

@Component
public class JspConfig implements TomcatContextCustomizer {
    @Override
    public void customize(Context context) {
        JspPropertyGroup pg = new JspPropertyGroup();
        pg.addUrlPattern("/*");
        pg.setPageEncoding("UTF-8");
        pg.setTrimWhitespace("true"); // optional, but nice to have
        ArrayList pgs = new ArrayList<>();
        pgs.add(new JspPropertyGroupDescriptorImpl(pg));
        context.setJspConfigDescriptor(new JspConfigDescriptorImpl(pgs, new ArrayList()));
    }
}

For JSP to work with Spring Boot, don't forget to include these dependencies:

    
        org.springframework.boot
        spring-boot-starter-tomcat
        provided
    
    
        org.apache.tomcat.embed
        tomcat-embed-jasper
        provided
    

And to make a "runnable" .war file, repackage it:

    
        
            org.springframework.boot
            spring-boot-maven-plugin
            
                
                    package
                    
                        repackage
                    
                
            
        
   . . .