HTTPServletAPI

public class Cookie implements java.lang.Cloneable {
// Constructors
public Cookie(String name, String value);
// Instance methods
public Object clone();
public String getComment();
public String getDomain();
public int getMaxAge();
public String getName();
public String getPath();
public boolean getSecure();
public String getValue();
public int getVersion();
public void setComment(String purpose);
public void setDomain(String pattern);
public void setMaxAge(int expiry);
public void setPath(String uri);
public void setSecure(boolean flag);
public void setValue(String newValue);
public void setVersion(int v);
}

public abstract class HttpServlet extends javax.servlet.GenericServlet
implements javax.servlet.Servlet, java.io.Serializable {
// Constructors
public HttpServlet();
// Public instance method
public void service(ServletRequest req, ServletResponse res)throws ServletException, IOException;
// Protected instance methods
protected void doDelete(HttpServletRequest req, HttpServletResponse res)throws ServletException, IOException;                   // New in 2.0
protected void doGet(HttpServletRequest req, HttpServletResponse res)throws ServletException, IOException;
protected void doOptions(HttpServletRequest req, HttpServletResponse res)throws ServletException, IOException;                   // New in 2.0
protected void doPost(HttpServletRequest req, HttpServletResponse res)throws ServletException, IOException;
protected void doPut(HttpServletRequest req, HttpServletResponse res)throws ServletException, IOException;                   // New in 2.0
protected void doTrace(HttpServletRequest req, HttpServletResponse res)throws ServletException, IOException;                   // New in 2.0
protected long getLastModified(HttpServletRequest req);
protected void service(HttpServletRequest req, HttpServletResponse res)throws ServletException, IOException;
}

public interface HttpServletRequest extends javax.servlet.ServletRequest {
// Methods
public abstract String getAuthType();
public abstract String getContextPath();                  // New in 2.2
public abstract Cookie[] getCookies();                    // New in 2.0
public abstract long getDateHeader(String name);
public abstract String getHeader(String name);
public abstract Enumeration getHeaderNames();
public abstract Enumeration getHeaders(String name);      // New in 2.2
public abstract int getIntHeader(String name);
public abstract String getMethod();
public abstract String getPathInfo();
public abstract String getPathTranslated();
public abstract String getQueryString();
public abstract String getRemoteUser();
public abstract String getRequestedSessionId();           // New in 2.0
public abstract String getRequestURI();
public abstract String getServletPath();
public abstract HttpSession getSession();                 // New in 2.1
public abstract HttpSession getSession(boolean create);   // New in 2.0
public abstract java.security.Principal getUserPrincipal(); // New in 2.2
public abstract boolean isRequestedSessionIdFromCookie(); // New in 2.0
public abstract boolean isRequestedSessionIdFromUrl();    // Deprecated
public abstract boolean isRequestedSessionIdFromURL();    // New in 2.1
public abstract boolean isRequestedSessionIdValid();      // New in 2.0
public abstract boolean isUserInRole(String role);        // New in 2.2
}

public interface HttpServletResponse extends javax.servlet.ServletResponse {
// Constants
public static final int SC_ACCEPTED;
public static final int SC_BAD_GATEWAY;
public static final int SC_BAD_REQUEST;
public static final int SC_CONFLICT;
public static final int SC_CONTINUE;                      // New in 2.0
public static final int SC_CREATED;
public static final int SC_EXPECTATION_FAILED;            // New in 2.2
public static final int SC_FORBIDDEN;
public static final int SC_GATEWAY_TIMEOUT;               // New in 2.0
public static final int SC_GONE;                          // New in 2.0
public static final int SC_HTTP_VERSION_NOT_SUPPORTED;    // New in 2.0
public static final int SC_INTERNAL_SERVER_ERROR;
public static final int SC_LENGTH_REQUIRED;               // New in 2.0
public static final int SC_METHOD_NOT_ALLOWED;            // New in 2.0
public static final int SC_MOVED_PERMANENTLY;
public static final int SC_MOVED_TEMPORARILY;
public static final int SC_MULTIPLE_CHOICES;              // New in 2.0
public static final int SC_NO_CONTENT;
public static final int SC_NON_AUTHORITATIVE_INFORMATION; // New in 2.0
public static final int SC_NOT_ACCEPTABLE;                // New in 2.0
public static final int SC_NOT_FOUND;
public static final int SC_NOT_IMPLEMENTED;
public static final int SC_NOT_MODIFIED;
public static final int SC_OK;
public static final int SC_PARTIAL_CONTENT;               // New in 2.0
public static final int SC_PAYMENT_REQUIRED;              // New in 2.0
public static final int SC_PRECONDITION_FAILED;           // New in 2.0
public static final int SC_PROXY_AUTHENTICATION_REQUIRED; // New in 2.0
public static final int SC_REQUEST_ENTITY_TOO_LARGE;      // New in 2.0
public static final int SC_REQUEST_TIMEOUT;               // New in 2.0
public static final int SC_REQUEST_URI_TOO_LONG;          // New in 2.0
public static final int SC_REQUESTED_RANGE_NOT_SATISFIABLE;// New in 2.2
public static final int SC_RESET_CONTENT;                 // New in 2.0
public static final int SC_SEE_OTHER;                     // New in 2.0
public static final int SC_SERVICE_UNAVAILABLE;
public static final int SC_SWITCHING_PROTOCOLS;           // New in 2.0
public static final int SC_UNAUTHORIZED;
public static final int SC_UNSUPPORTED_MEDIA_TYPE;        // New in 2.0
public static final int SC_USE_PROXY;                     // New in 2.0

// Methods
public abstract void addCookie(Cookie cookie);            // New in 2.0
public abstract void addDateHeader(String name, long date);// New in 2.2
public abstract void addHeader(String name, String value);// New in 2.2
public abstract void addIntHeader(String name, int value);// New in 2.2
public abstract boolean containsHeader(String name);
public abstract String encodeRedirectUrl(String url);     // Deprecated
public abstract String encodeRedirectURL(String url);     // New in 2.1
public abstract String encodeUrl(String url);             // Deprecated
public abstract String encodeURL(String url);             // New in 2.1
public abstract void sendError(int sc)throws IOException, IllegalStateException;
public abstract void sendError(int sc, String msg)throws IOException, IllegalStateException;
public abstract void sendRedirect(String location)throws IOException, IllegalStateException;
public abstract void setDateHeader(String name, long date);
public abstract void setHeader(String name, String value);
public abstract void setIntHeader(String name, int value);
public abstract void setStatus(int sc);
public abstract void setStatus(int sc, String sm);        // Deprecated
}

public interface HttpSession {
// Methods
// Most methods may throw IllegalStateException
public abstract Object getAttribute(String name);         // New in 2.2
public abstract Enumeration getAttributeNames();          // New in 2.2
public abstract long getCreationTime();
public abstract String getId();
public abstract long getLastAccessedTime();
public abstract int getMaxInactiveInterval();             // New in 2.1
public abstract HttpSessionContext getSessionContext();   // Deprecated
public abstract Object getValue(String name);             // Deprecated
public abstract String[] getValueNames();                 // Deprecated
public abstract void invalidate();
public abstract boolean isNew();
public abstract void putValue(String name, Object value); // Deprecated
public abstract void removeAttribute(String name);        // New in 2.2
public abstract void removeValue(String name);            // Deprecated
public abstract void setAttribute(String name, Object value);// New in 2.2
public abstract void setMaxInactiveInterval(int secs);    // New in 2.1
}

public class HttpSessionBindingEvent extends java.util.EventObject {
// Constructors
public HttpSessionBindingEvent(HttpSession session, String name);

// Instance methods
public String getName();
public HttpSession getSession();
}

public interface HttpSessionBindingListener extends java.util.EventListener {
// Methods
public abstract void valueBound(HttpSessionBindingEvent event);
public abstract void valueUnbound(HttpSessionBindingEvent event);
}

public interface HttpSessionContext {
// Methods
public abstract Enumeration getIds(); // Deprecated
public abstract HttpSession getSession(String sessionId); // Deprecated
}

public class HttpUtils {
// Constructors
public HttpUtils();

// Class methods
public static StringBuffer getRequestURL(HttpServletRequest req);
public static Hashtable parsePostData(int len, ServletInputStream in);
public static Hashtable parseQueryString(String s);
}