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📄 searchstudent.java

📁 这是和jspcourseware相对应的案例。希望大家通过这个案例的学习能够系统的掌握jsp编程的思想。
💻 JAVA
字号:
🔍 
/*
 * SearchStudent.java
 *
 * Created on 2007年4月25日, 上午9:38
 */

package servlet;

import java.io.*;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;

import javax.servlet.*;
import javax.servlet.http.*;
import util.SqlResult;

/**
 *
 * @author hyl
 * @version
 */
public class SearchStudent extends HttpServlet {
    
    /** Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
     * @param request servlet request
     * @param response servlet response
     */
    
        private Connection con = null;
    
    public void init(ServletConfig config) throws ServletException{
        super.init(config);
        try{
            Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
            con = DriverManager.getConnection("jdbc:odbc:school");
        }catch(ClassNotFoundException e){
            e.printStackTrace();;
        }catch(SQLException e){
            e.printStackTrace();
        }
    }
    
    public void destroy(){
        try{
            if(con != null)
                con.close();
        }catch(SQLException ignored){
            ignored.printStackTrace();
        }
    }
    
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
        String idStr = request.getParameter("s1");
        String sql = "select * from students where 学号 = " + idStr + ";";
        out.print("<html><heade><title>searchStudent</title></head>");
        SqlResult result = new SqlResult(con,sql);
        out.println(result);
        out.println("</body></html>");
        out.close();
    }
    
    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /** Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     */
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        processRequest(request, response);
    }
    
    /** Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     */
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        processRequest(request, response);
    }
    
    /** Returns a short description of the servlet.
     */
    public String getServletInfo() {
        return "Short description";
    }
    // </editor-fold>
}

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