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SSM整合

2022-09-03 03:30:58 作者：互联网

SSM整合

环境要求

环境：

IDEA
MySQL 5.7.19
Tomcat 9
Maven 3.6

要求：

需要熟练掌握MySQL数据库，Spring，JavaWeb及MyBatis知识，简单的前端知识；

数据库环境

创建一个存放书籍数据的数据库表

CREATE DATABASE `ssmbuild`;
 
USE `ssmbuild`;
 
DROP TABLE IF EXISTS `books`;
 
CREATE TABLE `books` (
  `bookID` INT(10) NOT NULL AUTO_INCREMENT COMMENT '书id',
  `bookName` VARCHAR(100) NOT NULL COMMENT '书名',
  `bookCounts` INT(11) NOT NULL COMMENT '数量',
  `detail` VARCHAR(200) NOT NULL COMMENT '描述',
  KEY `bookID` (`bookID`)
) ENGINE=INNODB DEFAULT CHARSET=utf8
 
INSERT  INTO `books`(`bookID`,`bookName`,`bookCounts`,`detail`)VALUES 
(1,'Java',1,'从入门到放弃'),
(2,'MySQL',10,'从删库到跑路'),
(3,'Linux',5,'从进门到进牢');

基本环境搭建

新建一Maven项目！ssmbuild ，添加web的支持

导入相关的pom依赖!

        <!--Junit-->
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.12</version>
        </dependency>
        <!--数据库驱动-->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.47</version>
        </dependency>
        <!-- 数据库连接池 -->
        <dependency>
            <groupId>com.mchange</groupId>
            <artifactId>c3p0</artifactId>
            <version>0.9.5.2</version>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>8.0.26</version>
        </dependency>
        <!--Servlet - JSP -->
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>servlet-api</artifactId>
            <version>2.5</version>
        </dependency>
        <dependency>
            <groupId>javax.servlet.jsp</groupId>
            <artifactId>jsp-api</artifactId>
            <version>2.2</version>
        </dependency>
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>jstl</artifactId>
            <version>1.2</version>
        </dependency>

        <!--Mybatis-->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>3.5.2</version>
        </dependency>
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis-spring</artifactId>
            <version>2.0.2</version>
        </dependency>

        <!--Spring-->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>5.1.9.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jdbc</artifactId>
            <version>5.1.9.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>1.18.20</version>
        </dependency>
        <dependency>
            <groupId>org.aspectj</groupId>
            <artifactId>aspectjweaver</artifactId>
            <version>1.9.4</version>
        </dependency>
    </dependencies>

Maven资源过滤设置

<build>
    <resources>
        <resource>
            <directory>src/main/java</directory>
            <includes>
                <include>**/*.properties</include>
                <include>**/*.xml</include>
            </includes>
            <filtering>false</filtering>
        </resource>
        <resource>
            <directory>src/main/resources</directory>
            <includes>
                <include>**/*.properties</include>
                <include>**/*.xml</include>
            </includes>
            <filtering>false</filtering>
        </resource>
    </resources>
</build>

建立基本结构和配置框架！

com.xiao.pojo
com.xiao.dao
com.xiao.service
com.xiao.controller
mybatis-config.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE configuration
        PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
 
</configuration>

applicationContext.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans.xsd">
 
</beans>

Mybatis层

数据库配置文件 database.properties

jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/ssmbuild?useSSL=true&useUnicode=true&characterEncoding=utf8
jdbc.username=root
jdbc.password=123456

、IDEA关联数据库

编写MyBatis的核心配置文件

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE configuration
        PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
    
    <typeAliases>
        <package name="com.kuang.pojo"/>
    </typeAliases>
    <mappers>
        <mapper resource="com/kuang/dao/BookMapper.xml"/>
    </mappers>
 
</configuration>

编写数据库对应的实体类 com.kuang.pojo.Books

使用lombok插件！

package com.xiao.pojo;
 
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
 
@Data
@AllArgsConstructor
@NoArgsConstructor
public class Books {
    
    private int bookID;
    private String bookName;
    private int bookCounts;
    private String detail;
    
}

编写Dao层的 Mapper接口！

package com.xiao.dao;

import com.xiao.pojo.Books;
import org.apache.ibatis.annotations.Param;

import java.util.List;

public interface IBooksMapper {

    //增加一个Book
    int addBooks(Books book);

    //根据id删除一个Book
    int deleteBooksById(int id);

    //更新Book
    int updateBooks(Books books);

    //根据id查询,返回一个Book
    Books queryBooksById(int id);

    //查询全部Book,返回list集合
    List<Books> queryAllBooks();

    // 模糊查询根据名字
    List<Books> queryBooksByName(@Param("value") String name);
}

编写接口对应的 Mapper.xml 文件。需要导入MyBatis的包；

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper
        PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">

<mapper namespace="com.xiao.dao.IBooksMapper">

    <!--增加一个Book-->
    <insert id="addBooks" parameterType="Books">
        insert into ssmbuild.books(bookName, bookCounts, detail)
        values (#{bookName}, #{bookCounts}, #{detail})
    </insert>

    <!--根据id删除一个Book-->
    <delete id="deleteBooksById" parameterType="int">
        delete
        from ssmbuild.books
        where bookID = #{bookID}
    </delete>

    <!--更新Book-->
    <update id="updateBooks" parameterType="Books">
        update ssmbuild.books
        set bookName   = #{bookName},
            bookCounts = #{bookCounts},
            detail     = #{detail}
        where bookID = #{bookID}
    </update>

    <!--根据id查询,返回一个Book-->
    <select id="queryBooksById" resultType="Books">
        select *
        from ssmbuild.books
        where bookID = #{bookID}
    </select>

    <!--查询全部Book-->
    <select id="queryAllBooks" resultType="Books">
        SELECT *
        from ssmbuild.books
    </select>

    <!--模糊查询根据name-->
    <select id="queryBooksByName" parameterType="string" resultType="Books">
        select *
        from books
        where bookName like '%${value}%';
    </select>
</mapper>

编写Service层的接口和实现类

接口：

package com.xiao.service;

import com.xiao.pojo.Books;
import org.apache.ibatis.annotations.Param;

import java.util.List;

public interface IBooksService {

    //增加一个Book
    int addBooks(Books book);

    //根据id删除一个Book
    int deleteBooksById(int id);

    //更新Book
    int updateBooks(Books books);

    //根据id查询,返回一个Book
    Books queryBooksById(int id);

    //查询全部Book,返回list集合
    List<Books> queryAllBooks();
    
    // 模糊查询根据名字
    List<Books> queryBooksByName(@Param("value") String bookName);

}

实现类：

package com.xiao.service;

import com.xiao.dao.IBooksMapper;
import com.xiao.pojo.Books;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.stereotype.Service;

import java.util.List;

@Service
public class BooksServiceImpl implements IBooksService {

    //调用dao层的操作，设置一个set接口，方便Spring管理
    private IBooksMapper booksMapper;
    @Autowired
    @Qualifier("IBooksMapper")
    public void setBooksMapper(IBooksMapper booksMapper) {
        this.booksMapper = booksMapper;
    }

    @Override
    public int addBooks(Books book) {
        return booksMapper.addBooks(book);
    }

    @Override
    public int deleteBooksById(int id) {
        return booksMapper.deleteBooksById(id);
    }

    @Override
    public int updateBooks(Books books) {
        return booksMapper.updateBooks(books);
    }

    @Override
    public Books queryBooksById(int id) {
        return booksMapper.queryBooksById(id);
    }

    @Override
    public List<Books> queryAllBooks() {
        return booksMapper.queryAllBooks();
    }

    @Override
    public List<Books> queryBooksByName(String name) {
        return booksMapper.queryBooksByName(name);
    }
}

OK，到此，底层需求操作编写完毕！

Spring层

配置Spring整合MyBatis，我们这里数据源使用c3p0连接池；

我们去编写Spring整合Mybatis的相关的配置文件；spring-dao.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/context
        https://www.springframework.org/schema/context/spring-context.xsd">


    <!--1.数据库连接池使用：c3p0 扫描database.properties配置文件-->
    <context:property-placeholder location="classpath:database.properties"/>

    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <!-- 配置连接池属性 -->
        <property name="driverClass" value="${jdbc.driver}"/>
        <property name="jdbcUrl" value="${jdbc.url}"/>
        <property name="user" value="${jdbc.username}"/>
        <property name="password" value="${jdbc.password}"/>

        <!-- c3p0连接池的私有属性 -->
        <property name="maxPoolSize" value="30"/>
        <property name="minPoolSize" value="10"/>
        <!-- 关闭连接后不自动commit -->
        <property name="autoCommitOnClose" value="false"/>
        <!-- 获取连接超时时间 -->
        <property name="checkoutTimeout" value="10000"/>
        <!-- 当获取连接失败重试次数 -->
        <property name="acquireRetryAttempts" value="2"/>
    </bean>


    <!--2.配置SqlSessionFactory对象-->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <!-- 注入数据库连接池 -->
        <property name="dataSource" ref="dataSource"/>
        <!-- 配置Mybatis全局配置文件:mybatis-config.xml -->
        <property name="configLocation" value="classpath:mybatis-config.xml"/>
    </bean>


    <!--3.配置扫描Dao接口包，动态实现Dao接口注入到spring容器中-->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <!-- 给出需要扫描Dao接口包 -->
        <property name="basePackage" value="com.xiao.dao"/>
        <!-- 注入 sqlSessionFactory -->
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
    </bean>
</beans>

Spring整合service层

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/context
        http://www.springframework.org/schema/context/spring-context.xsd">

    <!-- 1.扫描service相关的bean -->
    <context:component-scan base-package="com.xiao.service"/>

    <!--配置事务管理器-->
    <bean class="org.springframework.jdbc.datasource.DataSourceTransactionManager" id="transactionManager">
        <!-- 注入数据库连接池 -->
        <property name="dataSource" ref="dataSource"/>
    </bean>
</beans>

Spring层搞定！再次理解一下，Spring就是一个大杂烩，一个容器！对吧！

SpringMVC层

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
         version="4.0">
    <!--DispatchServlet前端控制器-->
    <servlet>
        <servlet-name>DispatcherServlet</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <!--一定要注意:我们这里加载的是总的配置文件，之前被这里坑了！-->
            <param-value>classpath:applicationContext.xml</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>DispatcherServlet</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>

    <!--乱码过滤器-->
    <filter>
        <filter-name>encodingFilter</filter-name>
        <filter-class>
            org.springframework.web.filter.CharacterEncodingFilter
        </filter-class>
        <init-param>
            <param-name>encoding</param-name>
            <param-value>utf-8</param-value>
        </init-param>
    </filter>
    <filter-mapping>
        <filter-name>encodingFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

    <!--Session过期时间-->
    <session-config>
        <session-timeout>15</session-timeout>
    </session-config>
</web-app>

spring-mvc.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
    http://www.springframework.org/schema/beans/spring-beans.xsd
    http://www.springframework.org/schema/context
    http://www.springframework.org/schema/context/spring-context.xsd
    http://www.springframework.org/schema/mvc
    https://www.springframework.org/schema/mvc/spring-mvc.xsd">

    <!-- 1.开启SpringMVC注解驱动 -->
    <mvc:annotation-driven/>

    <!--2.过滤静态资源-->
    <mvc:default-servlet-handler/>

    <!--3.配置视图解析器-->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver" id="internalResourceViewResolver">
        <property name="viewClass" value="org.springframework.web.servlet.view.JstlView" />
        <property name="prefix" value="/WEB-INF/jsp/"/>
        <property name="suffix" value=".jsp"/>
    </bean>

    <!-- 4.扫描web相关的bean -->
    <context:component-scan base-package="com.xiao.controller" />
</beans>

Spring配置整合文件，applicationContext.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans.xsd">

    <import resource="spring-dao.xml"/>
    <import resource="spring-service.xml"/>
    <import resource="springmvc-controller.xml"/>
</beans>

配置文件，暂时结束！Controller 和视图层编写

BookController 类编写，方法一：查询全部书籍

package com.xiao.controller;

import com.xiao.pojo.Books;
import com.xiao.service.BooksServiceImpl;
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.List;

@Controller
@RequestMapping("/book")
public class BookController {
    @Autowired
    @Qualifier("booksServiceImpl")
    private BooksServiceImpl booksService;


    // 查询全部书籍
    @RequestMapping("/queryAllBook")
    public String queryAllBook(Model model) {
        List<Books> books = booksService.queryAllBooks();
        model.addAttribute("list", books);
        return "allBook";
    }
}

编写首页 index.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8" %>
<!DOCTYPE HTML>
<html>
<head>
    <title>首页</title>
    <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">点击进入列表页</a>
</h3>
</body>
</html>

书籍列表页面 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="${pageContext.request.contextPath}/book/addBookPage">新增</a>
        </div>
    </div>
    <div class="row clearfix">
        <div class="col-md-12 column">
            <table class="table table-hover table-striped">
                <thead>
                <tr>
                    <th>书籍编号</th>
                    <th>书籍名字</th>
                    <th>书籍数量</th>
                    <th>书籍详情</th>
                    <th>操作</th>
                </tr>
                </thead>
                <tbody>
                <c:forEach var="book" items="${requestScope.get('list')}">
                    <tr>
                        <td>${book.getBookID()}</td>
                        <td>${book.getBookName()}</td>
                        <td>${book.getBookCounts()}</td>
                        <td>${book.getDetail()}</td>
                        <td>
                            <a href="${pageContext.request.contextPath}/book/updateBookPage?id=${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>

BookController 类编写，方法二：添加书籍

package com.xiao.controller;

import com.xiao.pojo.Books;
import com.xiao.service.BooksServiceImpl;
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.List;

@Controller
@RequestMapping("/book")
public class BookController {
    @Autowired
    @Qualifier("booksServiceImpl")
    private BooksServiceImpl booksService;


    // 查询全部书籍
    @RequestMapping("/queryAllBook")
    public String queryAllBook(Model model) {
        List<Books> books = booksService.queryAllBooks();
        model.addAttribute("list", books);
        return "allBook";
    }


    // 跳转添加页面
    @RequestMapping("/addBookPage")
    public String addBookPage() {
        return "addBook";
    }

    // 添加一本书籍
    @RequestMapping("/addBook")
    public String addBook(Books books) {
        booksService.addBooks(books);
        // 添加完返回主页
        return "redirect:/book/queryAllBook";
    }
}

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"><br><br><br>
        书籍数量：<input type="text" name="bookCounts"><br><br><br>
        书籍详情：<input type="text" name="detail"><br><br><br>
        <input type="submit" value="添加">
    </form>
</div>

BookController 类编写，方法三：修改书籍

package com.xiao.controller;

import com.xiao.pojo.Books;
import com.xiao.service.BooksServiceImpl;
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.List;

@Controller
@RequestMapping("/book")
public class BookController {
    @Autowired
    @Qualifier("booksServiceImpl")
    private BooksServiceImpl booksService;


    // 查询全部书籍
    @RequestMapping("/queryAllBook")
    public String queryAllBook(Model model) {
        List<Books> books = booksService.queryAllBooks();
        model.addAttribute("list", books);
        return "allBook";
    }


    // 跳转添加页面
    @RequestMapping("/addBookPage")
    public String addBookPage() {
        return "addBook";
    }

    // 添加一本书籍
    @RequestMapping("/addBook")
    public String addBook(Books books) {
        booksService.addBooks(books);
        // 添加完返回主页
        return "redirect:/book/queryAllBook";
    }


    // 跳转修改页面 使用RestFul风格
    @RequestMapping("/updateBookPage/{id}")
    public String updateBookPage(@PathVariable int id, Model model){
        // 回填修改页面
        Books books = booksService.queryBooksById(id);
        model.addAttribute("QBooks",books);
        return "updateBook";
    }

    // 修改书籍
    @RequestMapping("/updateBook")
    public String updateBook(Books books){
        booksService.updateBooks(books);
        return "redirect:/book/queryAllBook";
    }
}

修改书籍页面 updateBook.jsp

<%--
  Created by IntelliJ IDEA.
  User: ylp
  Date: 2022/5/26
  Time: 17:01
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>添加书籍</title>
    <title>书籍列表</title>
    <!-- 新 Bootstrap 核心 CSS 文件 -->

    <link href="https://cdn.staticfile.org/twitter-bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">

    <!-- jQuery文件。务必在bootstrap.min.js 之前引入 -->

    <script src="https://cdn.staticfile.org/jquery/2.1.1/jquery.min.js"></script>

    <!-- 最新的 Bootstrap 核心 JavaScript 文件 -->

    <script src="https://cdn.staticfile.org/twitter-bootstrap/3.3.7/js/bootstrap.min.js"></script>
</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 —— 修改书籍</small>
                </h1>
            </div>
        </div>
    </div>

    <form action="${pageContext.request.contextPath}/book/updateBook" method="post">
        <input type="hidden" name="bookID" value="${QBooks.bookID}">
        书籍名称：<input type="text" name="bookName" value="${QBooks.bookName}" required><br><br><br>
        书籍数量：<input type="text" name="bookCounts" value="${QBooks.bookCounts}" required><br><br><br>
        书籍详情：<input type="text" name="detail" value="${QBooks.detail}" required><br><br><br>
        <input type="submit" value="修改">
    </form>
</div>
</body>
</html>

BookController 类编写，方法四：删除书籍

package com.xiao.controller;

import com.xiao.pojo.Books;
import com.xiao.service.BooksServiceImpl;
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.List;

@Controller
@RequestMapping("/book")
public class BookController {
    @Autowired
    @Qualifier("booksServiceImpl")
    private BooksServiceImpl booksService;


    // 查询全部书籍
    @RequestMapping("/queryAllBook")
    public String queryAllBook(Model model) {
        List<Books> books = booksService.queryAllBooks();
        model.addAttribute("list", books);
        return "allBook";
    }


    // 跳转添加页面
    @RequestMapping("/addBookPage")
    public String addBookPage() {
        return "addBook";
    }

    // 添加一本书籍
    @RequestMapping("/addBook")
    public String addBook(Books books) {
        booksService.addBooks(books);
        // 添加完返回主页
        return "redirect:/book/queryAllBook";
    }


    // 跳转修改页面 使用RestFul风格
    @RequestMapping("/updateBookPage/{id}")
    public String updateBookPage(@PathVariable int id, Model model){
        // 回填修改页面
        Books books = booksService.queryBooksById(id);
        model.addAttribute("QBooks",books);
        return "updateBook";
    }

    // 修改书籍
    @RequestMapping("/updateBook")
    public String updateBook(Books books){
        booksService.updateBooks(books);
        return "redirect:/book/queryAllBook";
    }


    // 删除书籍
    @RequestMapping("/deleteBook/{id}")
    public String deleteBook(@PathVariable int id){
        booksService.deleteBooksById(id);
        return "redirect:/book/queryAllBook";
    }
}

BookController类编写，方法五：模糊查询

package com.xiao.controller;

import com.xiao.pojo.Books;
import com.xiao.service.BooksServiceImpl;
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.List;

@Controller
@RequestMapping("/book")
public class BookController {
    @Autowired
    @Qualifier("booksServiceImpl")
    private BooksServiceImpl booksService;


    // 查询全部书籍
    @RequestMapping("/queryAllBook")
    public String queryAllBook(Model model) {
        List<Books> books = booksService.queryAllBooks();
        model.addAttribute("list", books);
        return "allBook";
    }


    // 跳转添加页面
    @RequestMapping("/addBookPage")
    public String addBookPage() {
        return "addBook";
    }

    // 添加一本书籍
    @RequestMapping("/addBook")
    public String addBook(Books books) {
        booksService.addBooks(books);
        // 添加完返回主页
        return "redirect:/book/queryAllBook";
    }


    // 跳转修改页面 使用RestFul风格
    @RequestMapping("/updateBookPage/{id}")
    public String updateBookPage(@PathVariable int id, Model model){
        // 回填修改页面
        Books books = booksService.queryBooksById(id);
        model.addAttribute("QBooks",books);
        return "updateBook";
    }

    // 修改书籍
    @RequestMapping("/updateBook")
    public String updateBook(Books books){
        booksService.updateBooks(books);
        return "redirect:/book/queryAllBook";
    }


    // 删除书籍
    @RequestMapping("/deleteBook/{id}")
    public String deleteBook(@PathVariable int id){
        booksService.deleteBooksById(id);
        return "redirect:/book/queryAllBook";
    }


    // 根据名字查询书籍
    @RequestMapping("/queryBookByName")
    public String queryBookByName(String queryBookName,Model model){
        List<Books> books = booksService.queryBooksByName(queryBookName);
        if (books.size()==0){
            books = booksService.queryAllBooks();
            model.addAttribute("error","未查到");
        }
        System.err.println(books);
        model.addAttribute("list",books);
        // 这里注意点 不要返回queryAllBook这个方法里面 因为到了里面会重新赋值 直接返回allBook页面即可
        return "allBook";
    }
}

配置Tomcat，进行运行！

到目前为止，这个SSM项目整合已经完全的OK了，可以直接运行进行测试！这个练习十分的重要，大家需要保证，不看任何东西，自己也可以完整的实现出来！

项目结构图

标签：RequestMapping,springframework,SSM,books,整合,org,import,public
来源： https://www.cnblogs.com/RetainXiao/p/16651855.html