📄 formservlet.java
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package cn.jl.web;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.ServletContext;
import java.io.IOException;
import java.io.PrintWriter;
/**
* Created by IntelliJ IDEA.
* User: liubing
* Date: 2008-8-12
* Time: 19:36:32
* To change this template use File | Settings | File Templates.
*/
public class FormServlet extends HttpServlet {
private final String DEFAULT_VALUE = "World";
public void doPost(HttpServletRequest request, HttpServletResponse response) throws IOException,ServletException{
//request.setCharacterEncoding("gbk");
String studentName = request.getParameter("studentName");
String[] fruits = request.getParameterValues("fruit");
System.out.println("old : " + studentName);
studentName = new String(studentName.getBytes("iso-8859-1"),"gbk");
System.out.println("new : " + studentName);
response.setContentType("text/html;charset=gbk");
PrintWriter out = response.getWriter();
if(studentName == null || studentName.trim().length() == 0){
studentName = DEFAULT_VALUE;
}
ServletContext servletContext = getServletContext();
String greetingText = servletContext.getInitParameter("greetingText");
servletContext.setAttribute("gt",greetingText);
out.println("<html>");
out.println(" <body>");
out.println(" Hello " + studentName + " !");
out.println(" <br> " + greetingText);
out.println(" 水果：");
if(fruits == null || fruits.length == 0){
out.println(" 我不爱吃水果！");
}
else{
for(int i = 0 , n = fruits.length ; i < n ; i++){
out.println(fruits[i] + " ");
}
}
out.println(" </body>");
out.println("</html>");
request.setAttribute("userName" ,studentName);
//response.sendRedirect("/web/html/Success.html");
//response.sendRedirect("SuccessServlet");
// RequestDispatcher requestDispatcher = request.getRequestDispatcher("SuccessServlet");
// requestDispatcher.forward(request,response);
}
}
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