📄 addnewbook.jsp
字号:
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@ page import="java.sql.*" %>
<jsp:directive.page import="ss06.sl.pj3.DBUtil;"/>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=GB2312">
<title>Add new book</title>
</head>
<body>
<%
request.setCharacterEncoding("UTF-8");
String ISBN = request.getParameterValues("ISBN")[0].trim();
if(ISBN.equals("")){
out.println("ISBN不能为空！");
%>
<a href="javascript:history.back();">返回</a>
<%
return;
}
String bookname = request.getParameterValues("bookname")[0].trim();
if(bookname.equals("")){
out.println("图书名不能为空！");
%>
<a href="javascript:history.back();">返回</a>
<%
return;
}
String bookpress = request.getParameterValues("bookpress")[0].trim();
String category = request.getParameterValues("category")[0].trim();
double price;
try{
price = Double.parseDouble(request.getParameterValues("price")[0]);
}catch(Exception e){
price = 0;
}
String pic = request.getParameterValues("pic")[0].trim();
int year, month, day;
try{
year = Integer.parseInt(request.getParameterValues("year")[0].trim());
month = Integer.parseInt(request.getParameterValues("month")[0].trim());
day = Integer.parseInt(request.getParameterValues("day")[0].trim());
}catch(Exception e){
year = 1900;
month = 1;
day = 11;
}
java.sql.Date publishdate = new java.sql.Date(year - 1900, month, day);
bookname = bookname.replace(" ", "");
bookpress = bookpress.replace(" ", "");
pic = pic.replace(" ", "");
DBUtil dbutil = DBUtil.getInstance();
dbutil.connect2DB();
dbutil.addbook(ISBN, bookname, bookpress, category, price, pic, publishdate);
response.sendRedirect("bookmanage.jsp");
%>
</body>
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