import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class RegistrationServlet extends HttpServlet {
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html");
PrintWriter out = response.getWriter();
String username = request.getParameter("username");
String password = request.getParameter("password");
String gender = request.getParameter("gender");
String education = request.getParameter("education");
String[] hobbies = request.getParameterValues("hobbies");
out.println("<html>");
out.println("<head><title>注册信息</title></head>");
out.println("<body>");
out.println("<h1>注册信息:</h1>");
out.println("<p>用户名: " + username + "</p>");
out.println("<p>密码: " + password + "</p>");
out.println("<p>性别: " + gender + "</p>");
out.println("<p>学历: " + education + "</p>");
out.println("<p>爱好: ");
if (hobbies != null) {
for (String hobby : hobbies) {
out.println(hobby + " ");
}
}
out.println("</p>");
out.println("</body>");
out.println("</html>");
}
}
问题很简单,但是你直接这种提问,我估计没人会给你代码或者答案。
建议你去提了悬赏问题,就有人为你解答了。
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DirectByteBuffer属于user space,也就是用户态。