public List<BForm> selectByBookNameAndReaderId(String BookName,String ReaderId) { System.out.println("select_BookName_And_ReaderId..."); bList=new ArrayList(); try { Bfcon.connectDB(); String sql="SELECT bor.borrowDate,bor.staffID,b.ISBN, b.bookname, bor.borrowCount,bor.state FROM books b INNER JOIN Borrow bor ON b.ISBN = bor.ISBN WHERE bor.readerID = '"+ReaderId+"' AND b.bookname LIKE ?"; Bfcon.statement=Bfcon.connection.prepareStatement(sql); Bfcon.statement.setString(1, "%"+BookName+"%"); Bfcon.resultSet=Bfcon.statement.executeQuery(); while(Bfcon.resultSet.next()){ bf =new BForm(); bf.setB_isbn(Bfcon.resultSet.getString("ISBN")); bf.setB_name(Bfcon.resultSet.getString("bookname")); bf.setJy_id(Bfcon.resultSet.getString("staffID")); bf.setJy_date(Bfcon.resultSet.getString("borrowDate")); bf.setJy_count(Bfcon.resultSet.getInt("borrowCount")); System.out.println(Bfcon.resultSet.getString("state")); if(Bfcon.resultSet.getInt("state")==0){ bf.setIs_gh("是"); }else if(Bfcon.resultSet.getInt("state")==1){ bf.setIs_gh("否"); } bList.add(bf); } } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); }finally{ Bfcon.close(); } //创建一条通路 return bList; }

<%@ page contentType="text/html;charset=UTF-8" language="java" %> <%@ page import="java.sql." %> <html> <head> <title>JSP读取数据库</title> </head> <body> 书号书名作者出版社 <% String url="jdbc:mysql://localhost:3306/hhstu?serverTimezone=Asia/test1"; //自己修改 String user="root";//MySQ帐号 String password="123456";//MYSQL密码 Connection conn ; try { Class.forName("com.mysql.jdbc.Driver"); conn = DriverManager.getConnection(url,user,password); Statement stmt=conn.createStatement(); ResultSet rs=stmt.executeQuery("SELECT FROM books"); while(rs.next()){ %> <%= rs.getInt("bookid") %> <%= rs.getString("bookname") %> <%= rs.getString("writer") %> <%= rs.getString("publish") %> <% } //end while }//end try catch(Exception ex){ ex.printStackTrace(); } %> </body> </html>修改代码

<td><%= rs.getString("bookname") %></td> <td><%= rs.getString("writer") %></td> <td><%= rs.getString("publish") %></td> </tr> <% } //end while }//end try catch(Exception ex){ ex....

</form> 书籍编号书籍名字书籍数量书籍详情操作 <c:forEach var="book" items="${booksList}"> ${book.bookID} ${book.bookName} ${book.bookCounts} ${book.detail} 更改 | 删除 </c:forEach> 改为html语言

<td>${book.bookName}</td> <td>${book.bookCounts}</td> <td>${book.detail}</td> <td> <a href="${pageContext.request.contextPath}/book/toUpdateBook/${book.bookID}">更改</a> | <a href="${...

string bookdetails = bookdao.getbookdetails(bookname);

这行代码的含义是从书籍数据访问对象(bookdao)中获取书籍细节(bookdetails)，其中bookname是一个参数，用于指定具体的书籍名称。在这行代码中，bookdao表示与书籍相关的数据访问对象，可以是一个接口或具体的实现...

新品{{book.bookName}}好评率 90%该输出语句的语法是否有问题

其中，<p>标签中包含了一个带有样式的<span>标签和一个插值表达式{{book.bookName}}，用于显示book对象中的bookName属性。另外还有一个静态文本好评率 90%，以及一个没有样式的<span>标签。如果...

public List<StudentBuy> getBuyCourseList(String studentNo) { Connection con = null; PreparedStatement pre = null; ResultSet resultSet = null; try { con = DBUtils.getConnection(); String sql = "select * from tb_student_buy where student_no = ?"; pre = con.prepareStatement(sql); pre.setString(1, studentNo); resultSet = pre.executeQuery(); List<StudentBuy> studentBuyList = new ArrayList<>(); while (resultSet.next()) { String studentNo1 = resultSet.getString("student_no"); String studentName = resultSet.getString("student_name"); String isbn = resultSet.getString("isbn"); String bookName = resultSet.getString("book_name"); Date createTime = resultSet.getDate("create_time"); StudentBuy buys = new StudentBuy(); buys.setStudentNo(studentNo1); buys.setStudentName(studentName); buys.setBookName(bookName); buys.setIsbn(isbn); buys.setCreateTime(createTime); studentBuyList.add(buys); } return studentBuyList; } catch (SQLException e) { // TODO Auto-generated catch block e.printStackTrace(); } finally { DBUtils.closeConnection(con, pre, resultSet); } return null; }

这个方法从数据库中获取指定学生购买的所有课程的信息，并将它们存储在一个List<StudentBuy>对象中。在方法中，它首先获取一个数据库连接，然后通过执行一个带有参数的SQL查询语句来获取指定学生的购买记录。接着，...

public ArrayList<Book> BookList(DBHelper dbHelper){ SQLiteDatabase db = dbHelper.getWritableDatabase(); Cursor cursor = db.query("book",new String[]{"id","bookname","author","category"}, null,null,null,null,"id desc"); ArrayList<Book> list = new ArrayList<>(); if (cursor != null && cursor.getCount() > 0){ while (cursor.moveToNext()){ String id = cursor.getString(cursor.getColumnIndex("id")); String bookname = cursor.getString(cursor.getColumnIndex("bookname")); String author = cursor.getString(cursor.getColumnIndex("author")); String category = cursor.getString(cursor.getColumnIndex("category")); Book book = new Book(id,bookname,author,category); list.add(book); } } db.close(); return list;解释每一行代码

4. ArrayList<Book> list = new ArrayList<>();：创建一个空的ArrayList对象，用于存储查询结果。 5. if (cursor != null && cursor.getCount() > 0){：判断Cursor对象是否为空且是否有数据。 6. while ...

讲解段以下代码 package com.qst.chapter04.servlet; import java.io.IOException; import java.io.PrintWriter; import java.util.Map; import javax.servlet.ServletException; import javax.servlet.annotation.WebServlet; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import javax.servlet.http.HttpSession; @WebServlet("/ShoppingListServlet") public class ShoppingListServlet extends HttpServlet { private static final long serialVersionUID = 1L; protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { this.doPost(request, response); } protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { response.setContentType("text/html;charset=UTF-8"); PrintWriter out = response.getWriter(); //do get被动 do post主动 HttpSession session = request.getSession(); //服务器会话对象 HttpSession类通过request的getSession方法获取（boolean值） //通过request对象获取请求参数 Map<String, Integer> car = (Map<String, Integer>) session .getAttribute("shoppingCar"); if (car != null && car.size() > 0) { out.println("您购买的书籍有："); // 遍历显示购物车中的书籍名称和选择次数 for (String bookName : car.keySet()) { out.println("" + bookName + " ， " + car.get(bookName) + " 本"); } } else { out.println("您还未购买任何书籍！"); } out.println("继续购买"); } }

这段代码是一个Java Servlet类，用于处理用户购物车的数据。@WebServlet("/ShoppingListServlet")表示这个Servlet的URL映射为/ShoppingListServlet。doGet()和doPost()方法是Servlet的两个主要方法，用于分别处理GET...

<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>图书商城-图书列表</title> <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1"> <script src="https://cdn.bootcss.com/vue/2.5.16/vue.min.js"></script> <script src="https://unpkg.com/axios/dist/axios.min.js"></script> </head> <body> 0"> {{bk.bookName}} ￥{{bk.bookPrice}} <iframe src="footer.html" frameborder="0" scrolling="no" width="100%" height="245px"></iframe> <script src="/BookShopSystem_war/layui/layui.js"></script>这是完整的html代码，请结合你给出的分页功能整合出完整的代码

<p>{{bk.bookName}}</p> <p class="price">￥{{bk.bookPrice}}</p> </a> </td> </tr> </table> </div> </div> <div class="layui-row"> <div class="layui-col-md12"> <div id="pagination"></div> </...

axios({ method: 'get', url: '/BookShopSystem_war/getQueryBook/' + bookName@GetMapping("/getQueryBook/{bookName}") @ResponseBody public Map<String, Object> getQueryBook(@PathVariable("bookName") String bookName) { List<Book> queryBookList = bookService.getQueryBook(bookName); HashMap<String, Object> result = new HashMap<>(); result.put("code", 0); result.put("msg", "success"); result.put("data", queryBookList); return result; }<select id="getQueryBook" parameterType="String" resultMap="bookResult"> select * from book where book_name like CONCAT('%',#{bookName},'%') </select>传递的参数会乱码

这段代码使用了Spring Boot框架和MyBatis进行Web开发，前端... String encodedParam = URLEncoder.encode(bookName, "UTF-8"); 然后将编码后的参数传递给mapper。以上任何一种方法都可以解决参数乱码的问题。

如果要在span便签中绑定{{book.bookName}}，应该如何实现

<p><span class="layui-badge">新品</span><span>{{book.bookName}}</span></p> 好评率 <span>90%</span> 这样就可以将book对象中的bookName属性绑定到<span>标签中了。注意，如果bookName没有被正确...

package shiyan4_2; import java.util.*; public class MainClass { @SuppressWarnings("unchecked") public static void main(String args[]) { List<Book> bookList=new LinkedList<Book>(); String bookName[]={"C语言程序设计基础","计算机组成原理","JSP基础教程","C++程序设计", "J2ME编程","操作系统","数据库技术"}; double bookPrice[]={29,21,22,29,34,32,29}; Book book[]=new Book[bookName.length]; for(int k=0;k<book.length;k++) { book[k]=new Book(); book[k].setName(bookName[k]); book[k].setPrice(bookPrice[k]); bookList.add(book[k]); } Book newBook=new Book(); newBook.setPrice(29); newBook.setName("Java程序设计"); bookList.add(newBook); Collections.sort(bookList); int m=-1; System.out.println("经查询, "+newBook.getName()+"("+newBook.getPrice()+")与下列图书:"); while((m=Collections.binarySearch(bookList,newBook,null))>=0) { Book bk=bookList.get(m); System.out.println("\t"+bk.getName()+"("+bk.getPrice()+")"); 【代码4】 } System.out.println("价钱相同。"); } }

1. 创建一个LinkedList类型的图书列表bookList和两个数组bookName和bookPrice； 2. 遍历book数组，创建Book对象，设置其名称和价格，并将其添加到bookList中； 3. 创建一个新的Book对象newBook，设置其名称和价格，...

数据库图书馆信息管理系统.doc

ReaderID,BookName,BookWriter, " "Outdate,YHdate，Indate) " "罚款信息：Fine(BookID,ReaderID,BookName, Outdate,Indate, Fine, MID) " "3.逻辑结构设计 " "(1)关系模式的设计与优化 " "读者：Reader(ReaderID, ...

图书销售管理系统课程设计(doc-17页).doc

} public void setBookName( String n ) { bookName = n; } public void setAuthor( String a ) { author = a; } public void setPress( String p) { press = p; } public void setISBN( String i ) { ISBN = i; } ...

MySQL数据库：存储过程举例.pptx

数据库编程存储过程举例 1）掌握 ——存储过程的应用；课程目标存储过程举例【例】创建一个Bookstore数据库的存储过程，根据用户...IF sl>=5 AND sl<=10 THEN UPDATE Sell SET 订购单价=订购单价*0.9 WHERE 用户

相关推荐

谈谈因Vue.js引发关于getter和setter的思考

图书查询-Java-Web程序设计教程-[共2页].pdf

C++书架书籍管理.zip

</form> 书籍编号 书籍名字 书籍数量 书籍详情 操作 <c:forEach var="book" items="${booksList}"> ${book.bookID} ${book.bookName} ${book.bookCounts} ${book.detail} 更改 | 删除 </c:forEach> 改为html语言

string bookdetails = bookdao.getbookdetails(bookname);

新品{{book.bookName}}好评率 90%该输出语句的语法是否有问题

如果要在span便签中绑定{{book.bookName}}，应该如何实现

数据库图书馆信息管理系统.doc

图书销售管理系统课程设计(doc-17页).doc

MySQL数据库：存储过程举例.pptx

最新推荐

防雷及短路计算软件.zip

电线穿管选用小软件.zip

【小白python数据分析入门4Pandas可视化-板块8案例 2018幸福大数据】

zigbee-cluster-library-specification

管理建模和仿真的文件

实现实时数据湖架构：Kafka与Hive集成

用matlab绘制高斯色噪声情况下的频率估计CRLB，其中w(n)是零均值高斯色噪声，w(n)=0.8*w(n-1)+e(n)，e(n)服从零均值方差为se的高斯分布

JSBSim Reference Manual

"互动学习：行动中的多样性与论文攻读经历"

实现实时监控告警系统：Kafka与Grafana整合

</form> 书籍编号书籍名字书籍数量书籍详情操作 <c:forEach var="book" items="${booksList}"> ${book.bookID} ${book.bookName} ${book.bookCounts} ${book.detail} 更改 | 删除 </c:forEach> 改为html语言