Grails Service 获取session,response,request,servletContext

Grails Service默认是不支持session,servletContext,response与request的，通过调用spring可以在Grails实现session，通过调用Groovy的WebUtils可以实现response,request,servletContext

import org.codehaus.groovy.grails.web.util.WebUtils
import org.springframework.web.context.request.RequestContextHolder

……

//Getting the Request object

def getRequest(){
	def webUtils = WebUtils.retrieveGrailsWebRequest()
	webUtils.getCurrentRequest()
}

//Getting the Response object

def getResponse(){
	def webUtils = WebUtils.retrieveGrailsWebRequest()
	webUtils.getCurrentResponse()
}

//Getting the ServletContext object

def getServletContext(){
	def webUtils = WebUtils.retrieveGrailsWebRequest()
	webUtils.getServletContext()
}

//Getting the Session object

def getSession(){
	RequestContextHolder.currentRequestAttributes().getSession()
}