📄 login.java~3~

📁 使用J2EE实现了软件园的下载和上传功能
💻 JAVA~3~
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package software;

import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.*;
import exp6CMP.loginCMPRemoteHome;
import exp6CMP.loginCMPRemote;

public class login extends HttpServlet {
    private static final String CONTENT_TYPE = "text/html; charset=GB2312";

    //Initialize global variables
    public void init() throws ServletException {
    }

    //Process the HTTP Get request
    public void doGet(HttpServletRequest request, HttpServletResponse response) throws
            ServletException, IOException {
        response.setContentType(CONTENT_TYPE);
        PrintWriter out = response.getWriter();
        out.println("<html>");
          out.println("<head><title>ServletLogin</title></head>");
          out.println("<body bgcolor=\"#ffffff\">");
          out.println("<form method=POST action=servletlogin>");
          out.println("<table border=1 width=30% align=center>");
          out.println(
                  "<tr bgcolor=#EFEFEF><td colspan=2 align=center>用户登录</td></tr>");
          out.println("<tr><td width=30%>用户名:</td><td width=70%><input type=text name=userName size=10></td></tr>");
          out.println(
                  "<tr><td>密 码:</td><td><input type=password name=password size=10></td></tr>");
          out.println("<tr><td align=center><input type=submit value=确定 name=BT1><input type=reset value=重置 name=BT2></td></tr>");
          out.println("</table>");
          out.println("</form>");

          out.println("</body>");
          out.println("</html>");
          out.close();

    }

    //Process the HTTP Post request
    public void doPost(HttpServletRequest request, HttpServletResponse response) throws
            ServletException, IOException {
        String userName = request.getParameter("userName");
         String password = request.getParameter("password");
         int num = 0;
         try {
              javax.naming.Context ic = new javax.naming.InitialContext();
             Object obj = ic.lookup("JNDI");
             loginCMPRemoteHome home = (loginCMPRemoteHome) javax.rmi.PortableRemoteObject.narrow(obj,loginCMPRemoteHome.class);
             Collection c = home.findLoginValidate(userName,password);
             java.util.Iterator i = c.iterator();
             while (i.hasNext()) {
                 num += 1;
                 loginCMPRemote l2 = (loginCMPRemote) i.next();
                 out.println("用户名："+l2.getUserName() + "<br>密码：" + l2.getPassword() +
                             "<br>邮箱：" + l2.getEmail() + "<br>电话：" + l2.getTel()+"<br>");
             }
         } catch (Exception ex) {
                   ex.printStackTrace();
             out.println(ex.getMessage());
         }
         if (num >= 1) {
            out.println("<font color=red>登录成功</font><br>");
            out.println("<a href=servletlogin>返回登录页</a><br>");
            out.println("<a href=servletregister>新用户注册</a><br>");
            out.println("<a href=servletcstart>查找以C开头的userName信息</a><br>");
         } else {
            out.println("登录失败");
            out.println("<a href=servletlogin>登录页</a><br><br>");
            out.println("<a href=servletregister>新用户注册</a><br>");
            out.println("<a href=servletcstart>查找以C开头的userName信息</a><br>");
         }

    }

    //Clean up resources
    public void destroy() {
    }
}
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