PageContext解决办法

package javax.servlet.jsp;import java.io.IOException;import javax.servlet.Servlet;import javax.servlet.ServletConfig;import javax.servlet.ServletContext;import javax.servlet.ServletException;import javax.servlet.ServletRequest;import javax.servlet.ServletResponse;import javax.servlet.http.HttpSession;import javax.servlet.jsp.tagext.BodyContent;public abstract class PageContext extends JspContext{  public static final int PAGE_SCOPE = 1;  public static final int REQUEST_SCOPE = 2;  public static final int SESSION_SCOPE = 3;  public static final int APPLICATION_SCOPE = 4;  public static final String PAGE = "javax.servlet.jsp.jspPage";  public static final String PAGECONTEXT = "javax.servlet.jsp.jspPageContext";  public static final String REQUEST = "javax.servlet.jsp.jspRequest";  public static final String RESPONSE = "javax.servlet.jsp.jspResponse";  public static final String CONFIG = "javax.servlet.jsp.jspConfig";  public static final String SESSION = "javax.servlet.jsp.jspSession";  public static final String OUT = "javax.servlet.jsp.jspOut";  public static final String APPLICATION = "javax.servlet.jsp.jspApplication";  public static final String EXCEPTION = "javax.servlet.jsp.jspException";  public abstract void initialize(Servlet paramServlet, ServletRequest paramServletRequest, ServletResponse paramServletResponse, String paramString, boolean paramBoolean1, int paramInt, boolean paramBoolean2)    throws IOException, IllegalStateException, IllegalArgumentException;  public abstract void release();  public abstract HttpSession getSession();  public abstract Object getPage();  public abstract ServletRequest getRequest();  public abstract ServletResponse getResponse();  public abstract Exception getException();  public abstract ServletConfig getServletConfig();  public abstract ServletContext getServletContext();  public abstract void forward(String paramString)    throws ServletException, IOException;  public abstract void include(String paramString)    throws ServletException, IOException;  public abstract void include(String paramString, boolean paramBoolean)    throws ServletException, IOException;  public abstract void handlePageException(Exception paramException)    throws ServletException, IOException;  public abstract void handlePageException(Throwable paramThrowable)    throws ServletException, IOException;  public BodyContent pushBody()  {    return null;  }  public ErrorData getErrorData()  {    return new ErrorData((Throwable)getRequest().getAttribute("javax.servlet.error.exception"), ((Integer)getRequest().getAttribute("javax.servlet.error.status_code")).intValue(), (String)getRequest().getAttribute("javax.servlet.error.request_uri"), (String)getRequest().getAttribute("javax.servlet.error.servlet_name"));  }}

package javax.servlet.jsp;import java.io.Writer;import java.util.Enumeration;import javax.el.ELContext;import javax.servlet.jsp.el.ExpressionEvaluator;import javax.servlet.jsp.el.VariableResolver;public abstract class JspContext{  public abstract void setAttribute(String paramString, Object paramObject);  public abstract void setAttribute(String paramString, Object paramObject, int paramInt);  public abstract Object getAttribute(String paramString);  public abstract Object getAttribute(String paramString, int paramInt);  public abstract Object findAttribute(String paramString);  public abstract void removeAttribute(String paramString);  public abstract void removeAttribute(String paramString, int paramInt);  public abstract int getAttributesScope(String paramString);  public abstract Enumeration<String> getAttributeNamesInScope(int paramInt);  public abstract JspWriter getOut();  /** @deprecated */  public abstract ExpressionEvaluator getExpressionEvaluator();  /** @deprecated */  public abstract VariableResolver getVariableResolver();  public abstract ELContext getELContext();  public JspWriter pushBody(Writer writer)  {    return null;  }  public JspWriter popBody()  {    return null;  }}