我正在尝试使用来自我的arraylist的数据填充html数据，但是我遇到了一些困难。我已经加载了数据并将其存储在arraylist中，但是在启动程序时表为空。有人可以帮我吗？我已经尝试过搜索我的问题，但是我似乎找不到答案。
**This is where i'm loading my data and populating it inside my arraylist**
import java.io.*;
import java.util.List;
import javax.servlet.*;
import javax.servlet.annotation.*;
import javax.servlet.http.*;
@WebServlet("/registered-class")
public class myRegist extends HttpServlet{
@Override
public void doGet(HttpServletRequest request,
HttpServletResponse response)
throws ServletException, IOException {
getInfo registerStu = new findInfo();
String ssn = request.getParameter("ssn");
String fullName = registerStu.getFullName(ssn);
String phone = registerStu.getPhone(ssn);
List<StudentClass> classList = registerStu.loadClass(ssn);
response.setContentType("text/html");
PrintWriter out = response.getWriter();
String docType =
"<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0 " +
"Transitional//EN\">\n";
StudentClass stu = new StudentClass();
request.setAttribute("message", classList);
request.getRequestDispatcher("/table.jsp").forward(request,response);
//ptints out info about course
//out.println(classList.get(0));
/*StudentInfo info = new StudentInfo(ssn, fullName, phone);
HttpSession session = request.getSession();
session.setAttribute("student", info);
String address = null;
if (fullName == null) {
address = "/myRegist.jsp";
}
else if (fullName != null) {
address = "/myRegist.jsp";
}
RequestDispatcher dispatcher =
request.getRequestDispatcher(address);
dispatcher.forward(request, response);*/
}
}
**My html table**
<html>
<body>
<head>
<title>
View Books
</title>
</head>
<body>
<table border=2>
<tr>
<th>Book ID</th>
<th>Title</th>
<th>Author</th>
<th>No. of copies AVAILABLE</th>
<th>Number of favourites</th>
</tr>
<tr>
<td><%=b.bookID%></td>
<td><%=b.bookTitle%></td>
<td><%=b.bookAuthor%></td>
<td><%=b.bookCopies%></td>
<td><%=b.bookFavs%></td>
</tr>
<%
}
%>
</table>
</body>
</html>
实际上，这非常简单-假设您熟悉将对象传递到JSP的过程。这是一个使用您传递并命名为message的对象的示例，我仅假设它具有一个名为String的name属性。
<%for (StudentClass sc: message) {%>
<span><%=sc.name%></span><br>
<%}%>