HttpServletResponse接口中方法的分类

1、缓冲器
     flushBuffer()
     getBufferSize()
     isCommited()
     reset()
     setBufferSize()

2、响应URL
     encodeRedirectUrl()     
     encodeRedirectURL()
     encodeURL()
     sendRedirect()

3、头
     addHeader()
     addDateHeader()
     addIntHeader()
     containsHeader()
     setDateHeader()
     setHeader()
     setIntHeader()

4、Cookie
     addCookie()

5、国际化
     getCharacterEncoding
     getLocale()
     getLocals()

6、输出数据
     setContentLength()
     setContentType()
     getOutputStream()
     getWriter()

7、状态和错误
     sendError()
     setStatus()