Yale CAS最佳实践 第四部分：试试身手

1.测试类
我写了一个RequestInfoServlet，可以显示HttpRequest的绝大部分有用信息，经过sso后，可以查看 HttpRequest里面还有什么东西。呵呵，我喜欢这样干。

import java.io.IOException;
import java.io.PrintWriter;
import java.util.Enumeration;

import javax.servlet.ServletException;
import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

/**
 * @author Liujj Date 2006-12-19 <br>
 *         Description: <br>
 *         RequestHeadersServlet
 */
public class RequestInfoServlet extends HttpServlet {
	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws IOException, ServletException {
		response.setContentType("text/html");
		PrintWriter out = response.getWriter();
		//header
		Enumeration headerNames = request.getHeaderNames();
		out.println("<B>*********[1].begin print headerNames************</B><p>");
		while (headerNames.hasMoreElements()) {
			String name = (String) headerNames.nextElement();
			String value = request.getHeader(name);
			out.println(name + " = " + value + "<p>");
		}
		out.println("<B>*********[1].end print headerNames************</B><p><p>");
		
		//attributeNames
		out.println("<B>*********[2].begin print attributeNames************</B><p>");
		Enumeration attributeNames = request.getAttributeNames();
		while (attributeNames.hasMoreElements()) {
			String name = (String) attributeNames.nextElement();
			String value = (String)request.getAttribute(name);
			out.println(name + " = " + value + "<p>");
		}
		out.println("<B>*********[2].end print attributeNames************</B><p><p>");
		
		//parameterNames
		out.println("<B>*********[3].begin print parameterNames************</B><p>");
		Enumeration parameterNames = request.getParameterNames();
		while (parameterNames.hasMoreElements()) {
			String name = (String) parameterNames.nextElement();
			String value = request.getParameter(name);
			out.println(name + " = " + value + "<p>");
		}
		out.println("<B>*********[3].end print parameterNames************</B><p><p>");
		
		//session
		out.println("<B>*********[4].begin print session AttributeNames************</B><p>");
		HttpSession session = request.getSession();
		Enumeration sAttributeNames = session.getAttributeNames();
		while (sAttributeNames.hasMoreElements()) {
			String name = (String) sAttributeNames.nextElement();
			Object value = session.getAttribute(name);
			out.println(name + " = " + value + "<p>");
		}
		out.println("<B>*********[4].end print session attributeNames************</B><p><p>");
		
		//cookie
		out.println("<B>*********[4].begin print Cookie************</B><p><p>");
		Cookie[] cookie = request.getCookies();
		for(int i=0; i< cookie.length; i++) {
			String name = cookie[i].getName();
			String value = cookie[i].getValue();
			out.println(name + " = " + value + "<p>");
		}   
		out.println("<B>*********[4].end print Cookie************</B><p><p>");
		
	}

}

2.cas log不起作用
目前那个log4j不起作用，天天用着的，算是个小bug，哪个兄弟下载后能帮忙解决一下，再次谢过^_^

你的四个帖子可以分两个帖子已经够用了，这样让别人没有耐心看下去的
要别人1,2,3,4排下来看
有点像写代码时的code smells的感觉啊...