login_jsp.java

来自「手机在线系统 采用Java 中的J2ME, JSP 跟MySql 运行环」· Java 代码 · 共 122 行

JAVA
122 行
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package org.apache.jsp.login;

import javax.servlet.*;
import javax.servlet.http.*;
import javax.servlet.jsp.*;
import java.sql.*;
import com.j2me.data.*;

public final class login_jsp extends org.apache.jasper.runtime.HttpJspBase
    implements org.apache.jasper.runtime.JspSourceDependent {

  private static java.util.Vector _jspx_dependants;

  public java.util.List getDependants() {
    return _jspx_dependants;
  }

  public void _jspService(HttpServletRequest request, HttpServletResponse response)
        throws java.io.IOException, ServletException {

    JspFactory _jspxFactory = null;
    PageContext pageContext = null;
    HttpSession session = null;
    ServletContext application = null;
    ServletConfig config = null;
    JspWriter out = null;
    Object page = this;
    JspWriter _jspx_out = null;
    PageContext _jspx_page_context = null;


    try {
      _jspxFactory = JspFactory.getDefaultFactory();
      response.setContentType("text/html; charset=gb2312");
      pageContext = _jspxFactory.getPageContext(this, request, response,
      			null, true, 8192, true);
      _jspx_page_context = pageContext;
      application = pageContext.getServletContext();
      config = pageContext.getServletConfig();
      session = pageContext.getSession();
      out = pageContext.getOut();
      _jspx_out = out;

      out.write("\r\n");
      out.write("<HTML>\r\n");
      out.write("\r\n");
      out.write("<HEAD>\r\n");
      out.write("\r\n");
      out.write("<TITLE> New Document </TITLE>\r\n");
      out.write("\r\n");
      out.write("</HEAD>\r\n");
      out.write("\r\n");
      out.write("<BODY>\r\n");

    /**
	  * @(#)england_team_name.jsp	1.11 01/08/23
	  * Copyright (c) 2004-2005 wuhua of workroom Inc. All Rights Reserved.
	  * @version 	1.0, 10/05/2004
	  * @author 	饶荣庆
	  * @author 	余煜辉
	  */

	 /*此文件用于获得客户端用户名，与用户密码信息，并做出判断*/

	 User u = null	; //数据库连接类
	 String name =request.getParameter("name");	  //获得参数
	 String userPassword =request.getParameter("password");
	 
	 try
	 {
		 u = new User();
		 u.connect();	   //连接数据库
	 }
	 catch(ClassNotFoundException e)
	 {
         out.println(e.getMessage());
	 }

	 try
	 {
		 String user = null; 
		 String password = null	;

		 ResultSet rs = u.view("select *from user;");	 //显示数据

		 while (rs.next())
		 {
             user =rs.getString(1);
		     password=rs.getString(2);

			 if (name.trim().compareTo(user) == 0 && userPassword.trim().compareTo(password) == 0)
			 {
				 out.println("true");	//如果密码与用户名匹配，则输出true
				 break;
			 }		        
         }  
	 }
	 catch(SQLException sqlexception)
     {
		 out.println(sqlexception.getMessage());	 //输出连接错误
	 }

	 u.disconnect(); //注销数据库

      out.write("\r\n");
      out.write("\r\n");
      out.write("\r\n");
      out.write("</BODY>\r\n");
      out.write("</HTML>\r\n");
    } catch (Throwable t) {
      if (!(t instanceof SkipPageException)){
        out = _jspx_out;
        if (out != null && out.getBufferSize() != 0)
          out.clearBuffer();
        if (_jspx_page_context != null) _jspx_page_context.handlePageException(t);
      }
    } finally {
      if (_jspxFactory != null) _jspxFactory.releasePageContext(_jspx_page_context);
    }
  }
}

login_jsp.java - 源码说明

本页面展示了「手机在线系统 采用Java 中的J2ME, JSP 跟MySql 运行环境是：jsdk1.4以上」中的 login_jsp.java 源码文件，采用 Java 编程语言编写，共 122 行代码。您可以在线阅读完整代码内容，也可以返回资源详情页下载完整源码包进行本地学习和开发。

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