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ssm框架整合案例--模糊查询书籍功能

2021-05-16 14:32:13 作者：互联网

`ssm框架整合案例`

01: ssm框架整合案例–整合Mybatis层
 02: ssm框架整合案例–整合Spring层
 03: ssm框架整合案例–整合SpringMVC层
 04: ssm框架整合案例–查询书籍功能
 05: ssm框架整合案例–添加书籍功能
 06: ssm框架整合案例–修改删除书籍功能
 07: ssm框架整合案例–模糊查询书籍功能

1. ssm框架整合案例–模糊查询书籍功能

1.1 新增一个模糊查询的方法

BookMapper.java
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    //    根据名称查询数据
    List<Books> queryBooksByName(@Param("booksName") String booksName);

1.2 实现方法

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BookMapper.xml

    <select id="queryBooksByName" resultType="books">
        select *
        from ssmbuild.books
        where bookName like #{booksName}
    </select>

1.3 在Service层编写方法

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BookService.java

    //    根据名称查询数据
    List<Books> queryBooksByName(String booksName);

1.4 在Service层实现方法

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BookServiceImpl.java

    public List<Books> queryBooksByName(String booksName) {
        return bookMapper.queryBooksByName(booksName);
    }

1.5 编写业务实现接口

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BookController.java

package com.tian.controller;


import com.tian.pojo.Books;
import com.tian.service.BookService;
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.List;

@Controller
@RequestMapping("/book")
public class BookController {
    private final BookService bookService;

    public BookController(@Qualifier("bookServiceImpl") BookService bookService) {
        this.bookService = bookService;
    }

    @RequestMapping("/allBook")
    public String list(Model model) {
        List<Books> books = bookService.queryAllBook();
        model.addAttribute("books", books);
        return "allBook";
    }

    //    跳转到添加书籍页面
    @RequestMapping("/toAddBook")
    public String toAddPaper() {
        return "addBook";
    }

    //    添加书籍的实现接口
    @RequestMapping("/addBook")
    public String addPaper(Books books) {
        System.out.println(books);
        bookService.addBook(books);
        return "redirect:/book/allBook"; // 重定向到@RequestMapping("allBook")
    }

    //    跳转到添加修改页面
    @RequestMapping("/toUpdateBook")
    public String toUpdateBook(Model model, int id) {
        Books books = bookService.queryBookById(id);
        model.addAttribute("book", books);
        return "updateBook";
    }

    //    修改数据的实现接口
    @RequestMapping("/updateBook")
    public String updateBook(Model model, Books book) {
        System.out.println(book);
        bookService.updateBook(book);
        Books books = bookService.queryBookById(book.getBookID());
        model.addAttribute("books", books);
        return "redirect:/book/allBook";
    }

    //    删除数据的接口
    @RequestMapping("/del/{bookId}")
    public String deleteBook(@PathVariable("bookId") int id) {
        bookService.deleteBookById(id);
        return "redirect:/book/allBook";
    }

    //    根据名称查询数据
    @RequestMapping("/queryBooks")
    public String queryBooks(String booksName, Model model) {
        List<Books> books = bookService.queryBooksByName("%" + booksName + "%");
        model.addAttribute("books", books);
        return "allBook";
    }
}

1.6 修改前端allBook页面

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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="${pageContext.request.contextPath}/book/toAddBook">新增</a>
        </div>
        <div class="col-md-4 column">
            <a class="btn btn-primary" href="${pageContext.request.contextPath}/book/allBook">显示所有书籍</a>
        </div>
        <div class="col-md-4 column">
            <form action="${pageContext.request.contextPath}/book/queryBooks" method="post">
                <label>
                    <input type="text" name="booksName" class="form-control" placeholder="请输入书籍名称" required>
                </label>
                <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="${requestScope.get('books')}">
                    <tr>
                        <td>${book.getBookID()}</td>
                        <td>${book.getBookName()}</td>
                        <td>${book.getBookCounts()}</td>
                        <td>${book.getDetail()}</td>
                        <td>
                            <a href="${pageContext.request.contextPath}/book/toUpdateBook?id=${book.getBookID()}">更改</a>
                            |
                            <a href="${pageContext.request.contextPath}/book/del/${book.getBookID()}">删除</a>
                        </td>
                    </tr>
                </c:forEach>
                </tbody>
            </table>
        </div>
    </div>
</div>

1.7 运行测试

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标签：String,bookService,--,书籍,查询,ssm,public,books,book
来源： https://blog.csdn.net/I_r_o_n_M_a_n/article/details/116890671