用mysql编译：Java Web开发实战经典（基础篇)课后题答案 060501_〖第05章：JSP基础语法〗_第01题

以下为调试通过代码，需要更详细的可以私信我

要修改的地方：

1、

改为
 
  
 
  
 
 
  
2、数据库的连接：
 
  
public static final String DBDRIVER = "oracle.jdbc.driver.OracleDriver" ;
	public static final String DBURL = "jdbc:oracle:thin:@localhost:1521:MLDN" ;
	public static final String DBUSER = "scott" ;
	public static final String DBPASSWORD = "tiger" ;
 
  
改为：
 
  
public static final String DBDRIVER = "org.gjt.mm.mysql.Driver"; 
	public static final String DBURL = "jdbc:mysql://localhost:3306/mldn"; 
	public static final String DBUSER = "用户名"; 
	public static final String DBPASSWORD = "t密码"; 
 
  
 
  
<%@ page contentType="text/html" pageEncoding="GBK"%>
<%@ page import="java.sql.*" %>
代码如下：
 
  
emp_list_false.jsp 
  
 
  
<%@ page contentType="text/html" pageEncoding="GBK"%>
<%@ page import="java.sql.*" %>

<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>


  
    
  
  
  
  
  <%! 
  public static final String URL = "emp_list_false.jsp"; 
   %>
  <%! 
	public static final String DBDRIVER = "org.gjt.mm.mysql.Driver"; 
	public static final String DBURL = "jdbc:mysql://localhost:3306/mldn"; 
	public static final String DBUSER = "root"; 
	public static final String DBPASSWORD = "toor"; 
%>
<%
	Connection conn = null ;
	PreparedStatement pstmt = null ;
	ResultSet rs = null ;
%>
<%
    int currentPage = 1;
    int lineSize = 5;
    int allRecorders = 0;
    int pageSize = 1;
    int lsData[]={1,3,5,7,9,10,15,20,25,30,35,100};
 %>
 <%
   try{
   currentPage = Integer.parseInt(request.getParameter("cp"));
  }catch(Exception e){}
  try{
  lineSize = Integer.parseInt(request.getParameter("ls"));
  }catch(Exception e){}
  %>
<%
   Class.forName(DBDRIVER);
   conn = DriverManager.getConnection(DBURL,DBUSER,DBPASSWORD);
   String sql = "SELECT COUNT(empno) FROM emp ";
   pstmt = conn.prepareStatement(sql);
   rs = pstmt.executeQuery();
   if(rs.next()){
     allRecorders = rs.getInt(1);
   }
%>
 
	
雇员列表

<%
  pageSize = (allRecorders +lineSize -1)/lineSize ;
 %>
 
 <%
   sql = "SELECT empno,ename,job,hiredate,sal,comm FROM emp ORDER BY empno";
   pstmt = conn.prepareStatement(sql);
   rs = pstmt.executeQuery();
  %>

   >
   >
   >
    
   跳转到
   <%
      for(int x=1;x<=pageSize;x++){
    %>
       ><%=x %>
       <%
       }
        %>
   页
   每页显示
   
   <%
      for(int x=0;x
    ><%=lsData[x] %>
    <%
    } 
    %>
   
   条
   


 <%
 for(int x=0;x<(currentPage-1)*lineSize;x++){
    rs.next();
 }
 for(int x=0;x

<% 
  }
}
 %>

	

		
编号
		
姓名
		
职位
		
雇佣日期
		
工资
		
奖金
	

		
<%=empno%>
		
<%=ename%>
		
<%=job%>
		
<%=hiredate%>
		
<%=sal%>
		
<%=comm%>
	
<%
    conn.close();
%>