?? queryselectedtopic.java
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package com.middle.graduate.servlet.student.operation;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import com.middle.graduate.biz.dao.DBStudentDao;
import com.middle.graduate.biz.dao.impl.DBStudentImpl;
import com.middle.graduate.biz.entity.Student;
import com.middle.graduate.biz.exce.DataException;
import com.middle.graduate.util.HbnUtil;
public class QuerySelectedTopic extends HttpServlet {
private DBStudentDao dao = new DBStudentImpl();
private static final long serialVersionUID = 6420547525574810577L;
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
request.setCharacterEncoding("gbk");
response.setContentType("text/html;charset=gb2312");
HttpSession session = request.getSession();
Integer studentId = (Integer)session.getAttribute("studentId");
System.out.println("studentId = " + studentId);
PrintWriter out = response.getWriter();
try {
Student student = dao.querySelectedTopic(studentId);
out.println("<html>");
out.println("<head>");
out.println("<title>query selected topic</title>");
out.println("</head>");
out.println("<body bgcolor = \"greeen\">");
out.println("<table align = \"center\" border = \"2\">");
out.println("<form method = \"post\" action = \"/jsp-graduate/student/dbo/quittopic\"");
out.println("<tr><td align = \"center\">課題號</td>");
out.println("<td align = \"center\">課題名稱</td>");
out.println("<td align = \"center\">課題描述</td>");
out.println("<td align = \"center\">課題屬性</td>");
out.println("<td align = \"center\">課題導師</td>");
out.println("<td align = \"center\">課題學生</td>");
out.println("<tr>"
+ "<td align = \"center\">" + student.getTopic().getTopicId() + "</td>"
+ "<td align = \"center\">" + student.getTopic().getTopicName() + "</td>"
+ "<td align = \"center\">" + student.getTopic().getTopicContent() + "</td>"
+ "<td align = \"center\">" + student.getTopic().getTopicProperty() + "</td>"
+ "<td align = \"center\">" + student.getTopic().getTeacher().getTeacherName() + "</td>"
+ "<td align = \"center\">" + student.getStudentName() + "</td>"
+ "</tr>");
out.println("</form>");
out.println("</table>");
out.println("</body>");
out.println("</html>");
} catch (DataException e) {
e.printStackTrace();
} finally {
HbnUtil.closeSession();
out.close();
}
}
}
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