整合SSM

创建数据库

 CREATE DATABASE ssmbuild
 
USE ssmbuild
CREATE TABLE books ( 
bookID INT(10) NOT NULL AUTO_INCREMENT,
bookName VARCHAR(100) NOT NULL,
bookCounts INT(11) NOT NULL, 
detail VARCHAR(200) NOT NULL, 
KEY bookID (bookID) 
  )ENGINE=INNODB DEFAULT CHARSET=utf8
  
INSERT INTO books(bookID,bookName,bookCounts,detail) VALUES 
(2,'MySQL',10,'从删库到跑路'),(3,'Linux',5,'从进门到进牢');

连接数据库

编写实体类

 @Data
@AllArgsConstructor
@NoArgsConstructor
public class Books {
    private int bookID;
    private String bookName;
    private int bookCounts;
    private String detail;
}

编写Dao接口

 public interface BookMapper {
    //增加一个Book
    int add(Books books);
 
    //根据id删除一个book
    int deleteBook ( int id);
 
    //更新BOOK
    int updateBook (Books books);
 
    //根据ID查询，返回一个Book
    Books selectBooks(int id);
 
    //查询全部Book，返回list集合
    List<Books> AllBooks();
}

编写Daomapper.xml配置文件

 <?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.Google.dao.BookMapper">
    <!--增加一个Book-->
    <insert id="add" parameterType="Books">
        insert into ssmbuild.books
            (bookID, bookName, bookCounts, detail)
        values (#{bookID}, #{bookName}, #{bookCounts}, #{detail})
 
    </insert>
    <!--根据id删除一个book-->
    <delete id="deleteBook" parameterType="_int">
        delete
        from ssmbuild.books
        where bookID = #{bookID}
    </delete>
 
    <!--更新BOOK-->
    <update id="updateBook" parameterType="Books">
        update ssmbuild.books
        set bookCounts=#{bookCounts},bookName=#{bookName},detail=#{detail}
        where bookID = #{bookID}
    </update>
 
    <!--根据ID查询，返回一个Book-->
    <select id="selectBooks" parameterType="_int" resultType="Books">
        select *
        from ssmbuild.books
        where bookID = #{bookID}
 
    </select>
 
    <!--查询全部Book，返回list集合-->
    <select id="AllBooks" resultType="Books">
        select *
        from ssmbuild.books
    </select>
</mapper>

serivce接口

 package com.Google.service;
 
import com.Google.pojo.Books;
 
import java.util.List;
 
public interface BookService {
 
    //增加一个Book
    int add(Books books);
 
    //根据id删除一个book
    int deleteBook ( int id);
 
    //更新BOOK
    int updateBook (Books books);
 
    //根据ID查询，返回一个Book
    Books selectBooks(int id);
 
    //查询全部Book，返回list集合
    List<Books> AllBooks();
 
}

service实现

 package com.Google.service;
 
import com.Google.dao.BookMapper;
import com.Google.pojo.Books;
 
import java.util.List;
 
public class BookServiceImpl implements BookService {
    private BookMapper bookMapper;
    //调用Dao层的操作
    public void setBookMapper(BookMapper bookMapper) {
        this.bookMapper = bookMapper;
    }
 
    @Override
    public int add(Books books) {
        return bookMapper.add(books);
    }
 
    @Override
    public int deleteBook(int id) {
        return bookMapper.deleteBook(id);
    }
 
    @Override
    public int updateBook(Books books) {
        return bookMapper.updateBook(books);
    }
 
    @Override
    public Books selectBooks(int id) {
        return bookMapper.selectBooks(id);
    }
 
    @Override
    public List<Books> AllBooks() {
        return bookMapper.AllBooks();
    }
}

配置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>
 
    <typeAliases>
        <package name="com.Google.pojo"/>
    </typeAliases>
 
    <mappers>
        <mapper resource="com/Google/dao/BookMapper.xml"/>
    </mappers>
 
</configuration>

编写database.properties

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

将dao层注入到Spring中(创建一个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">
 
    <!-- 配置整合mybatis -->
    <!-- 1.关联数据库文件 -->
    <context:property-placeholder location="classpath:database.properties"/>
 
    <!-- 2.数据库连接池 -->
    <!--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="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>
 
    <!-- 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="dataSource"/>
        <!-- 配置MyBaties全局配置文件:mybatis-config.xml -->
        <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.Google.dao"/>
    </bean>
 
</beans>

将service层注入到Spring中(创建一个spring-service.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
       http://www.springframework.org/schema/context/spring-context.xsd">
 
    <!--扫描service相关的bean-->
    <context:component-scan base-package="com.Google.service"/>
 
    <bean id="BookServiceImpl" class="com.Google.service.BookServiceImpl">
        <property name="bookMapper" ref="bookMapper"/>
    </bean>
 
    <!-- 配置事务管理器 -->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <!-- 注入数据库连接池 -->
        <property name="dataSource" ref="dataSource" />
    </bean>
 
 
</beans>

添加WEB框架

配置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">
    
    <servlet>
        <servlet-name>DispatcherServlet</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <!--这里要加载的是总配置文件-->
            <param-value>classpath:applicationContext.xml</param-value>
        </init-param>
        <!--与Tomcat一起启动-->
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>DispatcherServlet</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>
    <!--乱码问题-->
    <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>

配置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: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/mvc
       http://www.springframework.org/schema/mvc/spring-mvc.xsd
       http://www.springframework.org/schema/context
       http://www.springframework.org/schema/context/spring-context.xsd">
    <!--开启注解驱动-->
    <mvc:annotation-driven/>
    <!--2.静态资源默认servlet配置-->
    <mvc:default-servlet-handler/>
    <!--3.扫描web相关的bean 使注解生效-->
    <context:component-scan base-package="com.Google.controller"/>
    <!--4.配置视图解析器-->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/jsp/"/>
        <property name="suffix" value=".jsp"/>
    </bean>
</beans>

将所有spring整合到一个applicationContext.xml中

 <?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="spring-mvc.xml"/>
</beans>

到这里所有的配置全部都已经完成

编写Controller

 @Controller
@RequestMapping("/book")
public class bookController {
 
    //Controller需要调用serivce层
    @Autowired
    @Qualifier("BookServiceImpl")
    private BookService bookService;
    //展示所有书籍
    @RequestMapping("allBook")
···

posted @ 2022-02-13 16:29 小罗要有出息阅读(24) 评论(0) 编辑收藏举报

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相关博文：

· 在spring中整合Mybaties

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· 2022.7.30 整合SSM

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· ssm整合

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小罗要有出息

整合SSM

创建数据库

连接数据库

编写实体类

编写Dao接口

编写Daomapper.xml配置文件

serivce接口

service实现

配置Mybatis-config.xml

编写database.properties

将dao层注入到Spring中(创建一个spring-dao.xml)

将service层注入到Spring中(创建一个spring-service.xml)

添加WEB框架

配置web.xml

配置spring-mvc.xml

将所有spring整合到一个applicationContext.xml中

到这里所有的配置全部都已经完成

编写Controller

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	CREATE DATABASE ssmbuild

	USE ssmbuild
	CREATE TABLE books (
	bookID INT(10) NOT NULL AUTO_INCREMENT,
	bookName VARCHAR(100) NOT NULL,
	bookCounts INT(11) NOT NULL,
	detail VARCHAR(200) NOT NULL,
	KEY bookID (bookID)
	)ENGINE=INNODB DEFAULT CHARSET=utf8

	INSERT INTO books(bookID,bookName,bookCounts,detail) VALUES
	(2,'MySQL',10,'从删库到跑路'),(3,'Linux',5,'从进门到进牢');

	@Data
	@AllArgsConstructor
	@NoArgsConstructor
	public class Books {
	private int bookID;
	private String bookName;
	private int bookCounts;
	private String detail;
	}

	public interface BookMapper {
	//增加一个Book
	int add(Books books);

	//根据id删除一个book
	int deleteBook ( int id);

	//更新BOOK
	int updateBook (Books books);

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

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

	<?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.Google.dao.BookMapper">
	<!--增加一个Book-->
	<insert id="add" parameterType="Books">
	insert into ssmbuild.books
	(bookID, bookName, bookCounts, detail)
	values (#{bookID}, #{bookName}, #{bookCounts}, #{detail})

	</insert>
	<!--根据id删除一个book-->
	<delete id="deleteBook" parameterType="_int">
	delete
	from ssmbuild.books
	where bookID = #{bookID}
	</delete>

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

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

	</select>

	<!--查询全部Book，返回list集合-->
	<select id="AllBooks" resultType="Books">
	select *
	from ssmbuild.books
	</select>
	</mapper>

	package com.Google.service;

	import com.Google.pojo.Books;

	import java.util.List;

	public interface BookService {

	//增加一个Book
	int add(Books books);

	//根据id删除一个book
	int deleteBook ( int id);

	//更新BOOK
	int updateBook (Books books);

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

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

	}

	package com.Google.service;

	import com.Google.dao.BookMapper;
	import com.Google.pojo.Books;

	import java.util.List;

	public class BookServiceImpl implements BookService {
	private BookMapper bookMapper;
	//调用Dao层的操作
	public void setBookMapper(BookMapper bookMapper) {
	this.bookMapper = bookMapper;
	}

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

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

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

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

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

	<?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.Google.pojo"/>
	</typeAliases>

	<mappers>
	<mapper resource="com/Google/dao/BookMapper.xml"/>
	</mappers>

	</configuration>

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

	<?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:database.properties"/>

	<!-- 2.数据库连接池 -->
	<!--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="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>

	<!-- 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="dataSource"/>
	<!-- 配置MyBaties全局配置文件:mybatis-config.xml -->
	<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.Google.dao"/>
	</bean>

	</beans>

	<?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">

	<servlet>
	<servlet-name>DispatcherServlet</servlet-name>
	<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
	<init-param>
	<param-name>contextConfigLocation</param-name>
	<!--这里要加载的是总配置文件-->
	<param-value>classpath:applicationContext.xml</param-value>
	</init-param>
	<!--与Tomcat一起启动-->
	<load-on-startup>1</load-on-startup>
	</servlet>
	<servlet-mapping>
	<servlet-name>DispatcherServlet</servlet-name>
	<url-pattern>/</url-pattern>
	</servlet-mapping>
	<!--乱码问题-->
	<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>

	@Controller
	@RequestMapping("/book")
	public class bookController {

	//Controller需要调用serivce层
	@Autowired
	@Qualifier("BookServiceImpl")
	private BookService bookService;
	//展示所有书籍
	@RequestMapping("allBook")
	···