📄 surveyservlet2.java

📁 用java编写的程序

💻 JAVA

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package webbook.chapter4;

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

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

/**
 * @author Liuwei
 * @version 1.0
 */
public class SurveyServlet2 extends HttpServlet {

	private static final long serialVersionUID = 7690850061113690104L;

	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		doPost(request, response);
	}

	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		response.setContentType("text/html;charset=utf-8");
		PrintWriter out = response.getWriter();
		request.setCharacterEncoding("utf-8");
		
		out.println("<html>");
		out.println("<head><title>display survey infomation</title></head>");
		out.println("<body>");
		out.println("<h2>用户输入信息：</h2>");

		String parameterName = null;
		Enumeration e = request.getParameterNames();
		while (e.hasMoreElements()) {
			parameterName = (String) e.nextElement();
			out.println("参数名称：" + parameterName + "<BR>");
			printValues(out, request.getParameterValues(parameterName));
		}
		out.flush();
		out.close();
	}

	public void printValues(PrintWriter out, String[] values) {
		out.println("<ul>");
		for (int i = 0; i < values.length; i++) {
			out.println("<li>" + values[i] + "</li>");
		}
		out.println("</ul>");
	}
}

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