极好的RequetContext.doc

极好的RequestContext //主要的功能包括：自动转码、处理文件上传、登录信息处理，以及一些跟请求相关的常用方法封装 package my.mvc; import java.io.*; import .*; import java.text.*; import java.util.*; import javax.servlet.*; import javax.servlet.http.*; import my.util.CryptUtils; import my.util.Multimedia; import my.util.RequestUtils; import my.util.ResourceUtils; import net.oschina.beans.User; import mons.beanutils.BeanUtils; import mons.beanutils.ConvertUtils; import mons.beanutils.Converter; import mons.beanutils.converters.SqlDateConverter; import mons.codec.binary.Base64; import mons.io.FileUtils; import mons.lang.RandomStringUtils; import mons.lang.StringUtils; import mons.lang.math.NumberUtils; import mons.logging.Log; import mons.logging.LogFactory; /** * 请求上下文 * @author Winter Lau * @date 2010-1-13 下午04:18:00 */ public class RequestContext { private final static Log log = LogFactory.getLog(RequestContext.class); private final static int MAX_FILE_SIZE = 10*1024*1024; private final static String UTF_8 = UTF-8; private final static ThreadLocalRequestContext contexts = new ThreadLocalRequestContext(); private final static boolean isResin; private final static String upload_tmp_path; private final static String TEMP_UPLOAD_PATH_ATTR_NAME = $OSCHINA_TEMP_UPLOAD_PATH$; private static String webroot = null; private ServletContext context; private HttpSession session; private HttpServletRequest request; private HttpServletResponse response; private MapString, Cookie cookies; static { webroot = getWebrootPath(); isResin = _CheckResinVersion(); //上传的临时目录 upload_tmp_path = webroot + WEB-INF + File.separator + tmp + File.separator; try { FileUtils.forceMkdir(new File(upload_tmp_path)); } catch (IOException excp) {} //BeanUtils对时间转换的初始化设置 ConvertUtils.register(new SqlDateConverter(null), java.sql.Date.class); ConvertUtils.register(new Converter(){ SimpleDateFormat sdf = new SimpleDateFormat(yyyy-M-d); SimpleDateFormat sdf_time = new SimpleDateFormat(yyyy-M-d H:m);