SSM整合（单表CRUD 附源码github）

1.Mysql数据库代码：

CREATE DATABASE `ssm_crud_book_manage`;

USE `ssm_crud_book_manage`;

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');

2.创建Maven项目：

删除这两个xml文件用自己的

3.导入pom.xml：

<?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/maven-v4_0_0.xsd">

    <modelVersion>4.0.0</modelVersion>
    <packaging>war</packaging>

    <name>ssm-crud-book-manage</name>
    <groupId>com.carpe</groupId>
    <artifactId>ssm-crud-book-manage</artifactId>
    <version>1.0-SNAPSHOT</version>
    <!--设置JKD版本-->
    <properties>
        <maven.compiler.source>11</maven.compiler.source>
        <maven.compiler.target>11</maven.compiler.target>
    </properties>

    <dependencies>
        <!--junit-->
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.12</version>
        </dependency>
        <!--Mysql5-->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.47</version>
        </dependency>
        <!--Mysql8-->
        <!--
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>8.0.11</version>
            </dependency>
        -->
        <!--c3p0数据源-->
        <dependency>
            <groupId>com.mchange</groupId>
            <artifactId>c3p0</artifactId>
            <version>0.9.5.5</version>
        </dependency>
        <!--druid数据源-->
        <!--
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
            <version>1.2.0</version>
        </dependency>
        -->
        <!--servlet-jsp-jstl-->
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>javax.servlet-api</artifactId>
            <version>3.1.0</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+Spring)-Mybatis-->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis-spring</artifactId>
            <version>2.0.2</version>
        </dependency>
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>3.5.2</version>
        </dependency>

        <!--SpringMVC-SpringJDBC-->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>5.1.12.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jdbc</artifactId>
            <version>5.1.12.RELEASE</version>
        </dependency>

        <!--lombok-->
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>1.18.12</version>
        </dependency>
    </dependencies>
    <!--配置Maven静态资源过滤问题！-->
    <build>
        <resources>
            <resource>
                <directory>src/main/resources</directory>
                <includes>
                    <include>**/*.properties</include>
                    <include>**/*.xml</include>
                </includes>
                <filtering>true</filtering>
            </resource>
            <resource>
                <directory>src/main/java</directory>
                <includes>
                    <include>**/*.properties</include>
                    <include>**/*.xml</include>
                </includes>
                <filtering>true</filtering>
            </resource>
        </resources>
    </build>
</project>

刷新maven

4.Mybatis层：

连接数据库

新建Mybatis层包名以及配置文件名

applicationContext.xml先行导入以下抬头

<?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/springbeans.xsd">

</beans>

mybatis-config.xml先行导入以下抬头

<?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>
    <!--配置数据源，交给Spring去做-->

    <!--起别名-->
    <typeAliases>
        <package name="com.carpe.entity"/>
    </typeAliases>

    <!--绑定mapper-->
    <mappers>
        <mapper class="com.carpe.mapper.BookMapper"></mapper>
    </mappers>
</configuration>

database.properties配置数据库信息

jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/ssm_crud_book_manage?useSSL=true&useUnicode=true&characterEncoding=utf8
jdbc.username=root
jdbc.password=123456
#如果使用的是Mysql8.0+，需要增加一个时区配置：如下
#jdbc.url=jdbc:mysql://localhost:3306/ssm_crud_book_manage?serverTimezone=UTC&useSSL=true&useUnicode=true&characterEncoding=utf8

右键表名一键生成实体类

BookMapper写接口再复制到BookService

public interface BookMapper {
    //增加一本书
    int addBooks(Books books);
    //删除一本书
    int deleteBookById(@Param("bookId") int id);
    //修改一本书
    int updateBook(Books books);
    //查询一本书
    Books queryBookById(@Param("bookId") int id);
    //查询全部的书
    List<Books> queryAllBook();
}

BookServiceImpl实现类

public class BookServiceImpl implements BookService {
    @Autowired
    private BookMapper bookMapper;

    @Override
    public int addBooks(Books books) {
        return bookMapper.addBooks(books);
    }

    @Override
    public int deleteBookById(int id) {
        return bookMapper.deleteBookById(id);
    }

    @Override
    public int updateBook(Books books) {
        return bookMapper.updateBook(books);
    }

    @Override
    public Books queryBookById(int id) {
        return bookMapper.queryBookById(id);
    }

    @Override
    public List<Books> queryAllBook() {
        return bookMapper.queryAllBook();
    }
}

BookMapper.xml写SQL语句

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper
        PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.carpe.mapper.BookMapper">
    <!--增加一本书-->
    <insert id="addBooks" parameterType="Books">
        insert into books(bookName,bookCounts,detail)
        values (#{bookName}, #{bookCounts}, #{detail})
    </insert>

    <!--删除一本书-->
    <delete id="deleteBookById" parameterType="int">
        delete from books where bookID=#{bookId}
    </delete>

    <!--修改一本书-->
    <update id="updateBook" parameterType="Books">
        update books
        set bookName=#{bookName},bookCounts=#{bookCounts},detail=#{detail}
        where bookID=#{bookId}
    </update>

    <!--查询一本书-->
    <select id="queryBookById" resultType="Books">
        select * from books
        where bookID = #{bookId}
    </select>

    <!--查询全部的书-->
    <select id="queryAllBook" resultType="Books">
        SELECT * from books
    </select>

</mapper>

下载地址：https://github.com/ajaxmax/SSM--CRUD

posted @ 2021-09-02 21:28 Sakimir 阅读(18) 评论(0) 收藏举报

刷新页面返回顶部

Sakimir

SSM整合（单表CRUD 附源码github）

1.Mysql数据库代码：

2.创建Maven项目 ：

3.导入pom.xml：

4.Mybatis层：

公告

2.创建Maven项目：