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ssm整合（三）Controller 和 视图层编写

2022-08-02 21:50:00 【橘子ꦿ.๓】

首页

index.jsp

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
  <head>
    <title>首页</title>
    <!-- 引入 Bootstrap -->
    <link href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">

    <style type="text/css">
      a {
        text-decoration: none;
        color: black;
        font-size: 18px;
      }
      h3 {
        width: 180px;
        height: 38px;
        margin: 100px auto;
        text-align: center;
        line-height: 38px;
        background: deepskyblue;
        border-radius: 4px;
      }
    </style>

  </head>
  <body>
  <h3>
    <a href="${pageContext.request.contextPath}/book/allBook">进入书籍页面</a>
  </h3>
  </body>
</html>

书籍列表页

allbook.jsp

<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>

<html>
<head>
    <title>书籍列表</title>
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <!-- 引入 Bootstrap -->
    <link
            href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">

</head>
<body>
<div class="container">
    <div class="row clearfix">
        <div class="col-md-12 column">
            <div class="page-header">
                <h1>
                    <small>书籍列表--显示所有书籍</small>
                </h1>
            </div>
        </div>
    </div>
    <div class="row">
        <div class="col-md-4 column">
            <a class="btn btn-primary" href="${pageContext.request.contextPath}/book/toAddBook">新增书籍</a>
            <a class="btn btn-primary" href="${pageContext.request.contextPath}/book/allBook">显示全部书籍</a>
        </div>
        <div class="col-md-4 column"></div>
    <div class="col-md-4 column">
        <form class="form-inline" action="${pageContext.request.contextPath}/book/queryBook" method="post"
              style="float: right">
            <span style="color:red;font-weight: bold">${error}
            </span>
            <input type="text" name="queryBookName" class="form-control"
                   placeholder="输入查询书名" required>
            <input type="submit" value="查询" class="btn btn-primary">
        </form>
    </div>

</div>

    <div class="row clearfix">
        <div class="col-md-12 column">
            <table class="table table-hover table-striped">
                <thead>
                <tr>
                    <th>书籍编号</th>
                    <th>书籍名字</th>
                    <th>书籍数量</th>
                    <th>书籍详情</th>
                    <th>操作</th>
                </tr>
                </thead>
                <tbody>
<c:forEach var="book" items="${list}">
    <tr>
    <td>${book.bookID}</td>
    <td>${book.bookName}</td>
    <td>${book.bookCounts}</td>
    <td>${book.detail}</td>
    <td>


        <a href="${pageContext.request.contextPath}/book/toUpdateBook?id=${book.getBookID()}">更改</a> |
    <a href="${pageContext.request.contextPath}/book/deleteBook/${book.getBookID()}"> 删除</a>
    </td>
    </tr>
</c:forEach>
                </tbody>
            </table>
        </div>
</div>
</div>
</body>
</html>

添加书籍页面

addBook.jsp

<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>新增书籍</title>
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <!-- 引入 Bootstrap -->
    <link
            href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css"
            rel="stylesheet">
</head>
<body>
<div class="container">
    <div class="row clearfix">
        <div class="col-md-12 column">
            <div class="page-header">
                <h1>
                    <small>新增书籍</small>
                </h1>
            </div>
        </div>
    </div>
    <form action="${pageContext.request.contextPath}/book/addBook"
          method="post">
        书籍名称：<input type="text" name="bookName" required><br>
        书籍数量：<input type="text" name="bookCounts" required>><br>
        书籍详情：<input type="text" name="detail" required>><br>
        <input type="submit" value="添加">
    </form>
</div>

修改书籍页面

updateBook.jsp

<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>修改信息</title>
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <!-- 引入 Bootstrap -->
    <link
            href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css"
            rel="stylesheet">
</head>
<body>
<div class="container">
    <div class="row clearfix">
        <div class="col-md-12 column">
            <div class="page-header">
                <h1>
                    <small>修改信息</small>
                </h1>
            </div>
        </div>
    </div>
    <form action="${pageContext.request.contextPath}/book/updateBook"
          method="post">
        <input type="hidden" name="bookID" value="${book.getBookID()}"/>
        书籍名称：<input type="text" name="bookName"
                    value="${book.getBookName()}"/>
        书籍数量：<input type="text" name="bookCounts"
                    value="${book.getBookCounts()}"/>
        书籍详情：<input type="text" name="detail"
                    value="${book.getDetail() }"/>
        <input type="submit" value="提交"/>
    </form>
</div>

Controller代码

package com.bdqn.controller;

import com.bdqn.pojo.Books;
import com.bdqn.service.BookService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;

import java.util.ArrayList;
import java.util.List;

@Controller
@RequestMapping("/book")
public class BookController {
    //controller 调 service层
    @Autowired
    @Qualifier("BookServiceImpl")
    private BookService bookService;

    //查询全部的书籍，并且返回到一个书籍展示页面
    @RequestMapping("/allBook")
    public String list(Model model){
        List<Books> list=bookService.queryAllBook();
        model.addAttribute("list",list);
        return "allBook";
    }
    //跳转到增加书籍页面
    @RequestMapping("/toAddBook")
    public String toAddPaper(){
      return "addBook";
    }
    //添加书籍的请求
    @RequestMapping("/addBook")
    public String addBook(Books books){
        System.out.println("books = " + books);
        bookService.addBooks(books);
        return "redirect:/book/allBook";//重定向到我们的@RequestMapping("/allBook")请求；
    }

    //跳转到修改书籍的页面
    @RequestMapping("/toUpdate")
    public String toUpdatePaper(int id,Model model){
        Books books=bookService.queryBookById(id);
        model.addAttribute("QBook",books);
    return "updateBook";
    }
    //修改书籍
@RequestMapping("/updateBook")
    public String updateBook(Books books){
        System.out.println("updateBook ==> " + books);
        int i=bookService.updateBook(books);
        if(i>0){
            System.out.println("添加books成功"+books);
        }
        return "redirect:/book/allBook";
    }
    //删除书籍
    @RequestMapping("/deleteBook/{bookId}")
    public String deleteBook(@PathVariable("bookId") int id){
        bookService.deleteBookById(id);
        return "redirect:/book/allBook";
    }
    //查询书籍
     @RequestMapping("queryBook")
    public String queryBook(String queryBookName,Model model){
      Books books=bookService.queryBookByName(queryBookName);
      List<Books> list=new ArrayList<Books>();
      list.add(books);
         if(books==null){
            list=bookService.queryAllBook();
            model.addAttribute("error","未查到");
         }
      model.addAttribute("list",list);
      return "allBook";
    }
}

原网站

版权声明
本文为[橘子ꦿ.๓]所创，转载请带上原文链接，感谢
https://blog.csdn.net/weixin_47541976/article/details/126121743

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