jsf 2.0我们使用text / html但它显示为javamail的plain

i am using mail1.4.3 jar in my jsf2.0 application and i am trying to send email on requesting new user , if we send mail the mail content is displaying plain eventhough i am using text/html for mails and my code is i am using mail1.4.3 jar in my jsf2.0 applicati