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112 lines
2.8 KiB
112 lines
2.8 KiB
<%@ page import="java.sql.*"%>
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<%@ page language="java" contentType="text/html; charset=UTF-8"
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pageEncoding="UTF-8"%>
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
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<title>Insert title here</title>
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</head>
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<body>
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<jsp:useBean id="borrow" scope="session" class="javabean.JDBCBean"></jsp:useBean>
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<%
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String user = request.getParameter("userid");
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String book = request.getParameter("bookid");
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String date1 = request.getParameter("date1");
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String date2 = request.getParameter("date2");
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String sql1 = "select * from borrow_card where ID =" + user;
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ResultSet rs1 = borrow.executeQuery(sql1);
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if(session.getAttribute("manager")!=null){
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if (rs1.next()) {
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int cardstatus = Integer.parseInt(rs1.getString("STATUS"));
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if(cardstatus!=0){
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String sql2 = "select * from books where ID =" + book;
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ResultSet rs2 = borrow.executeQuery(sql2);
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if(rs2.next()){
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//out.println(psw1 + " " + psw2);
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//String id = session.getAttribute("manager").toString();
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int status=Integer.parseInt(rs2.getString("STATUS"));
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if(status==1){
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String sql = "insert borrow_books(CARD_ID,BOOK_ID,BORROW_DATE,END_DATE)values('" + user + "','" + book
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+ "','" + date1 + "','" + date2 + "');";
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try {
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int i = borrow.executeUpdate(sql);
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if (i == 1) {
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%>
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<script>
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alert('借阅成功！');
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window.location.href = "02borrow.jsp";
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</script>
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<%
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String sql3="update books set STATUS=0 where ID="+book;
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borrow.executeUpdate(sql3);
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} else {
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%>
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<script>
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alert('借阅未成功！');
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window.location.href = "02borrow.jsp";
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</script>
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<%
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}
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} catch (Exception e) {
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%>
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<script>
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alert('借阅未成功！');
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window.location.href = "02borrow.jsp";
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</script>
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<%
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}
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}else{
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%>
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<script>
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alert('该图书已借出！');
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window.location.href = "02borrow.jsp";
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</script>
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<%
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}
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}else{
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%>
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<script>
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alert('该图书不存在！');
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window.location.href = "02borrow.jsp";
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</script>
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<%
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}
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}else{
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%>
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<script>
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alert('借阅证已被挂失或注销！');
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window.location.href = "02borrow.jsp";
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</script>
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<%
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}
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} else {
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%>
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<script>
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alert('用户不存在！');
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window.location.href = "02borrow.jsp";
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</script>
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<%
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}
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}else{
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%>
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<script>
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alert('请先登录！');
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window.parent.location.href = "../loginManager.html";
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</script>
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<%
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}
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%>
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</body>
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</html> |