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SSM整合例子

回望这一段人生 2022-04-05 阅读 56
java

学完尚硅谷ssm后，看了狂神的整合。自己的整合记录

目录

环境配置

数据库导入

项目创建

1.依赖配置

2.mvc架构配置

3.Dao层配置

4.service层配置

5.Spring整合mybatis的配置

6.controller层配置

7.视图层编写

8.整合中发现的问题

1.项目构建时 java.lang.ClassNotFoundException: org.springframework.web.servlet.DispatcherServlet的问题

2.关于ssm整合时关联Spring配置文件的问题

环境配置

  • IDEA

  • MySQL 8.0.28

  • Tomcat 8.0.50

  • Maven 3

 

数据库导入

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');

项目创建

        

 

1.依赖配置

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.yan</groupId>
    <artifactId>ssmbuild</artifactId>
    <version>1.0-SNAPSHOT</version>
    <packaging>war</packaging>

    <dependencies>
        <!--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>8.0.28</version>
        </dependency>

        <!-- 数据库连接池 -->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
            <version>1.1.10</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>


        <!--lombok插件-->
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>1.18.22</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>RELEASE</version>
            <scope>compile</scope>
        </dependency>
    </dependencies>
    <!-- 控制Maven在构建过程中相关配置 -->

    <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>

        <!-- 构建过程中用到的插件 -->
        <plugins>
            <!--打包时跳过test-->
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-surefire-plugin</artifactId>
                <configuration>
                    <skipTests>true</skipTests>
                </configuration>
            </plugin>

            <!--打包-->
            <plugin>
                <artifactId>maven-war-plugin</artifactId>
                <version>3.0.0</version>
            </plugin>


            <plugin>
                <groupId>org.mybatis.generator</groupId>
                <artifactId>mybatis-generator-maven-plugin</artifactId>
                <version>1.3.0</version>
                <!-- 插件的依赖 -->
                <dependencies>
                    <!-- 逆向工程的核心依赖 -->
                    <dependency>
                        <groupId>org.mybatis.generator</groupId>
                        <artifactId>mybatis-generator-core</artifactId>
                        <version>1.3.2</version>
                    </dependency>
                    <!-- 数据库连接池 -->
                    <dependency>
                        <groupId>com.mchange</groupId>
                        <artifactId>c3p0</artifactId>
                        <version>0.9.2</version>
                    </dependency>
                    <!-- MySQL驱动 -->
                    <dependency>
                        <groupId>mysql</groupId>
                        <artifactId>mysql-connector-java</artifactId>
                        <version>8.0.27</version>
                    </dependency>

                </dependencies>
            </plugin>
        </plugins>
    </build>

    <properties>
        <maven.compiler.source>8</maven.compiler.source>
        <maven.compiler.target>8</maven.compiler.target>
    </properties>

</project>

2.mvc架构配置

 

<?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">

    <import resource="spring-service.xml"/>
    <import resource="spring-dao.xml"/>
    <import resource="spring-mvc.xml"/>


</beans>

3.Dao层配置

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

<?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>

    <!--引入jdbc配置文件-->
<!--    <properties resource="jdbc.properties"/>-->

    <typeAliases>
        <package name="com.yan.pojo"/>
    </typeAliases>

<!--    &lt;!&ndash;设置连接数据库的环境&ndash;&gt;-->
<!--    <environments default="development">-->
<!--        <environment id="development">-->
<!--            <transactionManager type="JDBC"/>-->
<!--            <dataSource type="POOLED">-->
<!--                <property name="driver" value="${jdbc.driver}"/>-->
<!--                <property name="url"-->
<!--                          value="${jdbc.url}"/>-->
<!--                <property name="username" value="${jdbc.username}"/>-->
<!--                <property name="password" value="${jdbc.password}"/>-->
<!--            </dataSource>-->
<!--        </environment>-->
<!--    </environments>-->


    <!--引入映射文件-->
    <mappers>
        <package name="com.yan.dao"/>
    </mappers>


</configuration>
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE generatorConfiguration
        PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN"
        "http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd">
<generatorConfiguration>
    <!--
        targetRuntime: 执行生成的逆向工程的版本
        MyBatis3Simple: 生成基本的CRUD（清新简洁版）
        MyBatis3: 生成带条件的CRUD（奢华尊享版）
    -->
    <context id="DB2Tables" targetRuntime="MyBatis3">
        <!-- 数据库的连接信息 -->
        <jdbcConnection driverClass="com.mysql.cj.jdbc.Driver"
                        connectionURL="jdbc:mysql://localhost:3306/ssmbuild?serverTimezone=UTC&amp;characterEncoding=utf8&amp;useUnicode=true&amp;useSSL=false"
                        userId="root"
                        password="324628">
        </jdbcConnection>
        <!-- javaBean的生成策略-->
        <javaModelGenerator targetPackage="com.yan.pojo"
                            targetProject=".\src\main\java">
            <property name="enableSubPackages" value="true" />
            <property name="trimStrings" value="true" />
        </javaModelGenerator>
        <!-- SQL映射文件的生成策略 -->
        <sqlMapGenerator targetPackage="com.yan.dao"
                         targetProject=".\src\main\resources">
            <property name="enableSubPackages" value="true" />
        </sqlMapGenerator>
        <!-- Mapper接口的生成策略 -->
        <javaClientGenerator type="XMLMAPPER"
                             targetPackage="com.yan.dao" targetProject=".\src\main\java">
            <property name="enableSubPackages" value="true" />
        </javaClientGenerator>
        <!-- 逆向分析的表 -->
        <!-- tableName设置为*号，可以对应所有表，此时不写domainObjectName -->
        <!-- domainObjectName属性指定生成出来的实体类的类名 -->
        <table tableName="books" domainObjectName="Books"/>
    </context>
</generatorConfiguration>
package com.yan.pojo;


import lombok.AllArgsConstructor;
import lombok.NoArgsConstructor;

@AllArgsConstructor
@NoArgsConstructor
public class Books {

    private Integer bookid;

    private String bookname;

    private Integer bookcounts;

    private String detail;

    public Integer getBookid() {
        return bookid;
    }

    public void setBookid(Integer bookid) {
        this.bookid = bookid;
    }

    public String getBookname() {
        return bookname;
    }

    public void setBookname(String bookname) {
        this.bookname = bookname == null ? null : bookname.trim();
    }

    public Integer getBookcounts() {
        return bookcounts;
    }

    public void setBookcounts(Integer bookcounts) {
        this.bookcounts = bookcounts;
    }

    public String getDetail() {
        return detail;
    }

    public void setDetail(String detail) {
        this.detail = detail == null ? null : detail.trim();
    }

    @Override
    public String toString() {
        return "Books{" +
                "bookid=" + bookid +
                ", bookname='" + bookname + '\'' +
                ", bookcounts=" + bookcounts +
                ", detail='" + detail + '\'' +
                '}';
    }
}

public interface BooksMapper {
    /**
     * This method was generated by MyBatis Generator.
     * This method corresponds to the database table books
     *
     * @mbggenerated Sat Mar 26 16:19:03 CST 2022
     */
    int countByExample(BooksExample example);

    /**
     * This method was generated by MyBatis Generator.
     * This method corresponds to the database table books
     *
     * @mbggenerated Sat Mar 26 16:19:03 CST 2022
     */
    int deleteByExample(BooksExample example);

    /**
     * This method was generated by MyBatis Generator.
     * This method corresponds to the database table books
     *
     * @mbggenerated Sat Mar 26 16:19:03 CST 2022
     */
    int deleteByPrimaryKey(Integer bookid);

    /**
     * This method was generated by MyBatis Generator.
     * This method corresponds to the database table books
     *
     * @mbggenerated Sat Mar 26 16:19:03 CST 2022
     */
    int insert(Books record);
}
<?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.yan.dao.BooksMapper" >
  <resultMap id="BaseResultMap" type="com.yan.pojo.Books" >
    <!--
      WARNING - @mbggenerated
      This element is automatically generated by MyBatis Generator, do not modify.
      This element was generated on Sat Mar 26 16:19:03 CST 2022.
    -->
    <id column="bookID" property="bookid" jdbcType="INTEGER" />
    <result column="bookName" property="bookname" jdbcType="VARCHAR" />
    <result column="bookCounts" property="bookcounts" jdbcType="INTEGER" />
    <result column="detail" property="detail" jdbcType="VARCHAR" />
  </resultMap>
  <sql id="Example_Where_Clause" >
    <!--
      WARNING - @mbggenerated
      This element is automatically generated by MyBatis Generator, do not modify.
      This element was generated on Sat Mar 26 16:19:03 CST 2022.
    -->
    <where >
      <foreach collection="oredCriteria" item="criteria" separator="or" >
        <if test="criteria.valid" >
          <trim prefix="(" suffix=")" prefixOverrides="and" >
            <foreach collection="criteria.criteria" item="criterion" >
              <choose >
                <when test="criterion.noValue" >
                  and ${criterion.condition}
                </when>
                <when test="criterion.singleValue" >
                  and ${criterion.condition} #{criterion.value}
                </when>
                <when test="criterion.betweenValue" >
                  and ${criterion.condition} #{criterion.value} and #{criterion.secondValue}
                </when>
                <when test="criterion.listValue" >
                  and ${criterion.condition}
                  <foreach collection="criterion.value" item="listItem" open="(" close=")" separator="," >
                    #{listItem}
                  </foreach>
                </when>
              </choose>
            </foreach>
          </trim>
        </if>
      </foreach>
    </where>
  </sql>
</mapper>

4.service层配置

<?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:tx="http://www.springframework.org/schema/tx"
       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/tx http://www.springframework.org/schema/tx/spring-tx.xsd">

    <!--开启注解扫描-->
    <context:component-scan base-package="com.yan.service"/>


    <!--创建事务管理器-->
    <bean id="dataSourceTransactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <!--注入连接dateSource属性，注入数据源-->
        <property name="dataSource" ref="druidDataSource"/>
    </bean>

    <!--引入名称空间-->
    <!--开启事务注解-->
    <tx:annotation-driven transaction-manager="dataSourceTransactionManager"/>
    <!--BookServiceImpl注入到IOC容器中-->
    <!--    <bean class="com.yan.service.BookServiceImpl">-->
    <!--        <property name="booksMapper" ref="booksMapper"></property>-->
    <!--    </bean>-->

</beans>
package com.yan.service;

import com.yan.pojo.Books;

import java.util.List;

/**
 * @author Yyy
 * @creat2022-03-2619:54
 */
public interface BookService {
    /**
     * 删除书籍信息
     */
    int deleteBook(Integer id);

    /**
     * 增加书籍信息
     */
    int addBook(Books book);

    /**
     * 更新书籍信息
     */
    int updateBook(Books book);

    /**
     *根据id查询书籍
     */
    Books getBookById(Integer id);

    /**
     * 查询所有书籍信息
     */
    List<Books> getAllBooks();

    /***
     *  根据bookName查询
     */
    List<Books> getBookByName(String bookName);

}

package com.yan.service;

import com.yan.dao.BooksMapper;
import com.yan.pojo.Books;
import com.yan.pojo.BooksExample;
import lombok.Data;
import org.junit.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.EnableTransactionManagement;
import org.springframework.transaction.annotation.Transactional;

import java.util.List;

/**
 * @author Yyy
 * @creat2022-03-2619:57
 */


//开启事务
@Service
public class BookServiceImpl implements BookService{

    @Autowired
    private BooksMapper booksMapper;

    @Override
    public int deleteBook(Integer id) {
        return booksMapper.deleteByPrimaryKey(id);
    }

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

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

    @Override
    public Books getBookById(Integer id) {
        return booksMapper.selectByPrimaryKey(id);
    }

    @Override
    public List<Books> getAllBooks() {
        return booksMapper.selectByExample(null);
    }

    @Override
    public List<Books> getBookByName(String bookName) {
        BooksExample booksExample = new BooksExample();
        booksExample.createCriteria().andBooknameEqualTo(bookName);
        return booksMapper.selectByExample(booksExample);
    }

    public BooksMapper getBooksMapper() {
        return booksMapper;
    }

    public void setBooksMapper(BooksMapper booksMapper) {
        this.booksMapper = booksMapper;
    }
}

5.Spring整合mybatis的配置

<?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>

    <!--引入jdbc配置文件-->
<!--    <properties resource="jdbc.properties"/>-->

    <typeAliases>
        <package name="com.yan.pojo"/>
    </typeAliases>

<!--    &lt;!&ndash;设置连接数据库的环境&ndash;&gt;-->
<!--    <environments default="development">-->
<!--        <environment id="development">-->
<!--            <transactionManager type="JDBC"/>-->
<!--            <dataSource type="POOLED">-->
<!--                <property name="driver" value="${jdbc.driver}"/>-->
<!--                <property name="url"-->
<!--                          value="${jdbc.url}"/>-->
<!--                <property name="username" value="${jdbc.username}"/>-->
<!--                <property name="password" value="${jdbc.password}"/>-->
<!--            </dataSource>-->
<!--        </environment>-->
<!--    </environments>-->


    <!--引入映射文件-->
    <mappers>
        <package name="com.yan.dao"/>
    </mappers>


</configuration>
<?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">

    <!-- 配置整合mybatis -->

    <!-- 1.关联数据库文件 -->
    <context:property-placeholder location="classpath:jdbc.properties"/>
    <!--开启注解扫描-->
    <context:component-scan base-package="com.yan.dao"/>

    <!--2.数据库链接池-->
    <!-- 数据库连接池
         dbcp 半自动化操作 不能自动连接
         c3p0 自动化操作（自动的加载配置文件 并且设置到对象里面）
    -->
<!--    <bean id="comboPooledDataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">-->
<!--        &lt;!&ndash;配置连接池属性&ndash;&gt;-->
<!--        <property name="driverClass" value="${jdbc.driver}"/>-->
<!--        <property name="user" value="${jdbc.username}"/>-->
<!--        <property name="password" value="${jdbc.password}"/>-->
<!--        <property name="jdbcUrl" value="${jdbc.url}"/>-->
<!--        &lt;!&ndash; c3p0连接池的私有属性 &ndash;&gt;-->
<!--        <property name="maxPoolSize" value="30"/>-->
<!--        <property name="minPoolSize" value="10"/>-->
<!--        &lt;!&ndash; 关闭连接后不自动commit &ndash;&gt;-->
<!--        <property name="autoCommitOnClose" value="false"/>-->
<!--        &lt;!&ndash; 获取连接超时时间 &ndash;&gt;-->
<!--        <property name="checkoutTimeout" value="10000"/>-->
<!--        &lt;!&ndash; 当获取连接失败重试次数 &ndash;&gt;-->
<!--        <property name="acquireRetryAttempts" value="2"/>-->
<!--    </bean>-->

    <bean id="druidDataSource" class="com.alibaba.druid.pool.DruidDataSource">
        <!--配置连接池属性-->
        <property name="driverClassName" value="${jdbc.driver}"/>
        <property name="username" value="${jdbc.username}"/>
        <property name="password" value="${jdbc.password}"/>
        <property name="url" value="${jdbc.url}"/>
    </bean>

    <!--3.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="druidDataSource"/>
        <property name="configLocation" value="classpath:mybatis-config.xml"/>
    </bean>

    <!-- 4.配置扫描Dao接口包，动态实现Dao接口注入到spring容器中 -->
    <!--解释 ：https://www.cnblogs.com/jpfss/p/7799806.html-->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <!-- 注入sqlSessionFactory -->
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
        <!-- 给出需要扫描Dao接口包 -->
        <property name="basePackage" value="com.yan.dao"/>
    </bean>

</beans>

6.controller层配置

<?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">

    <!--DispatcherServlet-->
    <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>

<!--    encodingFilter-->
    <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>

</web-app>
<?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:mvc="http://www.springframework.org/schema/mvc"
       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
        http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd">

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

    <!-- 2.静态资源默认servlet配置-->
    <mvc:default-servlet-handler/>
    
    <!--注解扫描-->
    <context:component-scan base-package="com.yan.controller"/>

    <!-- 3.配置jsp 显示ViewResolver视图解析器 -->
    <bean class="org.springframework.web.servlet.view.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.yan.controller" />

    <mvc:view-controller path="/" view-name="index"/>

</beans>
package com.yan.controller;

import com.sun.org.apache.xpath.internal.operations.Mod;
import com.yan.pojo.Books;
import com.yan.service.BookServiceImpl;
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;

/**
 * @author Yyy
 * @creat2022-03-2820:04
 */
@Controller
@RequestMapping("/book")
public class BookController {
    @Autowired
    @Qualifier("bookServiceImpl")
    BookServiceImpl bookService;

    @RequestMapping("/toAddBook")
    public String toAddBook(){
        return "addBook";
    }

    @RequestMapping("/toUpdateBook/{id}")
    public String toUpdateBook(Model model ,@PathVariable("id") Integer id){
        Books bookById = bookService.getBookById(id);
        model.addAttribute("book",bookById);
        return "updateBook";
    }

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


    @RequestMapping("/addBook")
    public String addBook(Model model,Books book){
        bookService.addBook(book);
        List<Books> allBooks = bookService.getAllBooks();
        model.addAttribute("books",allBooks);
        return "showBooks";
    }

    @RequestMapping("/updateBook")
    public String updateBook(Model model,Books book){
        bookService.updateBook(book);
        List<Books> allBooks = bookService.getAllBooks();
        model.addAttribute("books",allBooks);
        return "showBooks";
    }

    @RequestMapping("/deleteBook")
    public String deleteBook(Model model,Integer id){
        bookService.deleteBook(id);
        List<Books> allBooks = bookService.getAllBooks();
        model.addAttribute("books",allBooks);
        return "showBooks";
    }

    @RequestMapping("/queryBooks")
    public String queryBooks(Model model,String bookName){
        List<Books> bookByName = bookService.getBookByName(bookName);
        model.addAttribute("books",bookByName);
        return "showBooks";
    }


}

7.视图层编写

<%@ 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/getAllBooks">点击进入列表页</a>
</h3>
</body>
</html>
<%@ 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="${pageContext.request.contextPath}/book/toAddBook">新增</a>
        </div>
        <div class="col-md-4 column" style="text-align: center">
            <form action="${pageContext.request.contextPath}/book/getAllBooks" method="post">
                <input type="submit" value="查询所有数据信息" class="btn btn-primary">
            </form>
        </div>
        <div class="col-md-4 column">
            <form action="${pageContext.request.contextPath}/book/queryBooks" method="post" style="float: right">
                <input type="text" name="bookName" class="form-control" placeholder="请输入要查询的书籍名称">
                <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="${requestScope.books}">
                    <tr>
                        <td>${book.getBookid()}</td>
                        <td>${book.getBookname()}</td>
                        <td>${book.getBookcounts()}</td>
                        <td>${book.getDetail()}</td>
                        <td>
                            <a href="${pageContext.request.contextPath}/book/toUpdateBook/${book.getBookid()}">更改</a> |
                            <a href="${pageContext.request.contextPath}/book/deleteBook?id=${book.getBookid()}">删除</a>
                        </td>
                    </tr>
                </c:forEach>
                </tbody>
            </table>
        </div>
    </div>
</div>
<%@ 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>
<%@ 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>

  至此，此ssm整合结束！

8.整合中发现的问题

web项目构建时 java.lang.ClassNotFoundException: org.springframework.web.servlet.DispatcherServlet的问题_YanDDDeat的博客-CSDN博客

关于ssm整合时关联Spring配置文件的问题_YanDDDeat的博客-CSDN博客

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