dealrereg.jsp

机械工业出版社的《jsp2.0动态网站开发实例指南》的源代码

<%@ page contentType="text/html;charset=gb2312"%>
<%@ page import="shop.logBean"%>
<%@ page import="java.sql.*"%>
<%@ page import="java.util.*"%>
<%!
	public String codeString(String s){
		String str=s;
                try{
			byte b[]=str.getBytes("ISO-8859-1");
			str=new String (b);
			return str;
		}catch(Exception e){return str;}
	}
%>
<%
	if(session.isNew()){
		response.sendRedirect("index.jsp");
	}
	else {
		%>
		<jsp:useBean id="log" class="shop.logBean" scope="session"/>
		<%
		String islog=log.getIslog();
		if(!islog.equals("true")){
			response.sendRedirect("index.jsp");
		}
		else{
			String id,name,pwd,pwdr,sex,mail,addr,call,intr,oldpwd;
			//get input
			id=log.getId();
			
			name=request.getParameter("name");
			if(name==null)name="";
			name=codeString(name);
			
			oldpwd=request.getParameter("oldpwd");
			if(oldpwd==null)oldpwd="";
			oldpwd=codeString(oldpwd);
			
			pwd=request.getParameter("pwd");
			if(pwd==null)pwd="";
			pwd=codeString(pwd);
			
			pwdr=request.getParameter("pwdr");
			if(pwdr==null)pwdr="";
			pwdr=codeString(pwdr);
			
			sex=request.getParameter("sex");
			if(sex==null)sex="";
			sex=codeString(sex);
			
			mail=request.getParameter("mail");
			if(mail==null)mail="";
			mail=codeString(mail);
			
			addr=request.getParameter("addr");
			if(addr==null)addr="";
			addr=codeString(addr);
			
			call=request.getParameter("call");
			if(call==null)call="";
			call=codeString(call);
			
			intr=request.getParameter("intr");
			if(intr==null)intr="";
			intr=codeString(intr);
			
			//check input
			if(
				name.equals("")||
				oldpwd.equals("")||
				pwd.equals("")||
				pwdr.equals("")||
				sex.equals("")||
				mail.equals("")||
				addr.equals("")||
				call.equals("")
			){
				//out.println("<center><font color=#FF0000>输入不能为空！</font><br></center>");
				response.sendRedirect("rereg.jsp");
			}
			else if(!pwd.equals(pwdr)){
				//out.println("<center><font color=#FF0000>两次密码不同！</font><br></center>");
				response.sendRedirect("rereg.jsp");
			}
			else if(mail.indexOf('@',0)==-1||mail.indexOf('.',0)==-1||mail.length()<6){
				//out.println("<center><font color=#FF0000>电邮地址有错！</font><br></center>");
				response.sendRedirect("rereg.jsp");
			} 
			else{
				try{
					Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
     					Connection con=DriverManager.getConnection("jdbc:odbc:myshop","","");
    					Statement sql = con.createStatement();
    					String condition="select * from user where id="+"'"+id+"'";
    					ResultSet rs=sql.executeQuery(condition);
    		
     					if(!rs.next()){
        					con.close();
        					//out.println("<center><font color=#FF0000>没有这个用户！</font><br></center>");
        					response.sendRedirect("index.jsp");
      					}
      					else{
      						
      						String temp=rs.getString("pwd");
      						if(!temp.equals(oldpwd)){
      							//out.println("<center><font color=#FF0000>密码不正确！</font><br></center>");
      							response.sendRedirect("rereg.jsp");
      						}
      						else{
      							PreparedStatement pstmt=con.prepareStatement("update user set pwd=? ,sex=? ,name=? ,mail=? ,intr=? ,call=? ,addr=? where id=?");
    							pstmt.setString(8,id);
        						pstmt.setString(3,name);
        						pstmt.setString(1,pwd);
        						pstmt.setString(2,sex);
        						pstmt.setString(4,mail);
        						pstmt.setString(7,addr);
        						pstmt.setString(6,call);
        						pstmt.setString(5,intr);
        						pstmt.executeUpdate();
        						pstmt.close();
        						con.close();
        						//out.println("<center><font color=#FF0000>修改成功！</font><br></center>");
      							response.sendRedirect("search.jsp");
      						}
       					}
      				}catch(SQLException e){
      					response.sendRedirect("index.jsp");

      				}catch(ClassNotFoundException e){
      					response.sendRedirect("index.jsp");
  				}
  			}
		}
	}
%>