📄 noteservlet.java
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package mypack;
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.*;
public class NoteServlet extends HttpServlet {
private static final String CONTENT_TYPE = "text/html; charset=GB2312";
public void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
response.setContentType(CONTENT_TYPE);
ServletOutputStream out = response.getOutputStream();
out.println("<html>");
out.println("<head><title>留言薄</title></head>");
out.println("<body>");
String username=request.getParameter("username");
String content=request.getParameter("content");
if(username!=null)username=new String(username.getBytes("ISO-8859-1"),"GB2312");
if(content!=null)content=new String(content.getBytes("ISO-8859-1"),"GB2312");
if(content!=null && !content.equals(""))
out.println("<p>"+username+"的留言为："+content+"</P>");
out.println(" <FORM action="+request.getContextPath()+"/note method=POST>");
out.println("<b>姓名:</b>");
out.println("<input type=text size=10 name=username ><br>");
out.println("<b>留言:</b><br>");
out.println("<textarea name=content rows=5 cols=20 wrap></textarea><br>");
out.println("<BR>");
out.println("<input type=submit value=提交>");
out.println("</form>");
out.println("</body></html>");
}
public void destroy() {
}
}
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