本筆記是在學(xué)習(xí)狂神說的SpringMVC時(shí)創(chuàng)建椎椰。

個(gè)人博客 ： Dexter

SSM整合步驟

1.環(huán)境

• IDEA

• JDK 1.8

• Tomcat 9

• Maven3.6

• Mysql 5.7

數(shù)據(jù)庫環(huán)境

創(chuàng)建圖書表

CREATE DATABASE `ssmbuild` ;
CREATE TABLE `books` (
  `bookID` int(10) NOT NULL AUTO_INCREMENT COMMENT '書id',
  `bookName` varchar(100) NOT NULL COMMENT '書名',
  `bookCounts` int(11) NOT NULL COMMENT '數(shù)量',
  `detail` varchar(200) NOT NULL COMMENT '描述',
  KEY `bookID` (`bookID`)
) ENGINE=InnoDB AUTO_INCREMENT=4 DEFAULT CHARSET=utf8;

導(dǎo)入數(shù)據(jù)略......

2.整合開始

1.打開IDEA創(chuàng)建普通Maven項(xiàng)目并添加wed支持

ssm01.png

2.添加相關(guān)依賴

 <dependencies>
        <!--Junit-->
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.12</version>
        </dependency>
        <!--數(shù)據(jù)庫驅(qū)動-->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.47</version>
        </dependency>
        <!-- 數(shù)據(jù)庫連接池 -->
        <dependency>
            <groupId>com.mchange</groupId>
            <artifactId>c3p0</artifactId>
            <version>0.9.5.2</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>RELEASE</version>
            <scope>compile</scope>
        </dependency>
    </dependencies>

注意：靜態(tài)資源過濾問題

 <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>

3.創(chuàng)建基本結(jié)構(gòu)

ssm02.png

ssm03.png

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>

4. Mybatis層

（1）創(chuàng)建實(shí)體類

import lombok.AllArgsConstructor;
import lombok.Data;
import org.springframework.stereotype.Component;

@Data
@AllArgsConstructor
public class Books {

    private int bookID;
    private String bookName;
    private int bookCounts;
    private String detail;

    public Books()
    {

    }
}

（2）創(chuàng)建BookMapper接口

package com.chao.mapper;

import com.chao.pojo.Books;

import java.util.List;


public interface BookMapper {

    //增加一本書
    int addBook(Books book);

    //刪除一本書
    int deleteBook(int id);

    //修改一本書
    int updateBook(Books book);

    //查詢一本書
    Books queryBookById(int id);

    //查詢所有的書
    List<Books> queryAllBook();
}

（2）創(chuàng)建BookMapper.xml

<?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.chao.mapper.BookMapper">
    <!--增加一本書 -->
    <insert id="addBook" parameterType="Books">
        insert into ssmbuild.books(bookName, bookCounts, detail)
        values(#{bookName},#{bookName},#{detail});
    </insert>
    <!--刪除一本書 -->
    <delete id="deleteBook" parameterType="int">
        delete from ssmbuild.books
        where bookID=#{id};
    </delete>
    <!--修改一本書 -->
    <update id="updateBook" parameterType="Books">
        update ssmbuild.books set bookName=#{bookName},bookCounts=#{bookCounts}
        ,detail=#{detail} where bookID=#{bookID} ;
    </update>
    <!--查詢一本書根據(jù)ID-->
    <select id="queryBookById" parameterType="int" resultType="Books">
        select * from ssmbuild.books where bookID=#{bookId};
    </select>
    <!--查詢所有的書 -->
    <select id="queryAllBook" resultType="Books">
        select * from ssmbuild.books;
    </select>
</mapper>

（3）數(shù)據(jù)庫外部文件

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

（4）Mybatis核心文件

<?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.chao.pojo"/>
   </typeAliases>
   <mappers>
       <mapper resource="com/chao/dao/BookMapper.xml"/>
   </mappers>

</configuration>

5.編寫業(yè)務(wù)層

（1）創(chuàng)建Service接口

package com.chao.Service;

import com.chao.pojo.Books;

import java.util.List;

public interface BookService {

    //增加一本書
    int addBook(Books book);
    //刪除一本書
    int deleteBook(int id);
    //修改一本書
    int updateBook(Books book);
    //查詢一本書
    Books queryBookById(int id);
    //查詢所有的書
    List<Books> queryAllBook();
}

（2）編寫實(shí)現(xiàn)類

package com.chao.Service;

import com.chao.mapper.BookMapper;
import com.chao.pojo.Books;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;

@Service
public class BookServiceImpl implements BookService {

    @Autowired
    private BookMapper bookMapper;

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

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

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

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

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

6.Spring整合

（1）Spring整合Dao層入录，創(chuàng)建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.關(guān)聯(lián)數(shù)據(jù)庫文件 -->
    <context:property-placeholder location="database.properties"></context:property-placeholder>

    <!-- 2.數(shù)據(jù)庫連接池 -->
    <!--數(shù)據(jù)庫連接池
        dbcp 半自動化操作 不能自動連接
        c3p0 自動化操作（自動的加載配置文件 并且設(shè)置到對象里面）
    -->
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <!-- 配置連接池屬性 -->
        <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連接池的私有屬性 -->
        <property name="maxPoolSize" value="30"/>
        <property name="minPoolSize" value="10"/>
        <!-- 關(guān)閉連接后不自動commit -->
        <property name="autoCommitOnClose" value="false"/>
        <!-- 獲取連接超時(shí)時(shí)間 -->
        <property name="checkoutTimeout" value="10000"/>
        <!-- 當(dāng)獲取連接失敗重試次數(shù) -->
        <property name="acquireRetryAttempts" value="2"/>
    </bean>

    <!-- 3.配置SqlSessionFactory對象 -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <!-- 注入數(shù)據(jù)庫連接池 -->
        <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>

    <!-- 4.配置掃描Dao接口包，動態(tài)實(shí)現(xiàn)Dao接口注入到spring容器中 -->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <!-- 注入sqlSessionFactory -->
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
        <!-- 給出需要掃描Dao接口包 -->
        <property name="basePackage" value="com.chao.mapper"/>
    </bean>

</beans>

（2）Spring整合Service層

<?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">

    <!-- 掃描service相關(guān)的bean -->
    <context:component-scan base-package="com.chao.Service" />

    <!-- 配置事務(wù)管理器 -->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <!-- 注入數(shù)據(jù)庫連接池 -->
        <property name="dataSource" ref="dataSource" />
    </bean>

</beans>

（3）Spring整合MVC層

<?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">

    <!-- 配置SpringMVC -->
    <!-- 1.開啟SpringMVC注解驅(qū)動 -->
    <mvc:annotation-driven/>
    <!-- 2.靜態(tài)資源默認(rèn)servlet配置-->
    <mvc:default-servlet-handler/>

    <!-- 3.配置jsp 顯示ViewResolver視圖解析器 -->
    <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.掃描web相關(guān)的bean -->
    <context:component-scan base-package="com.chao.controller"/>

</beans>

(4)整合controller層

<?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:我們這里加載的是總的配置文件精置，之前被這里坑了！-->
            <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>

    <!--Session過期時(shí)間-->
    <session-config>
        <session-timeout>15</session-timeout>
    </session-config>

</web-app>

5）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="spring-mvc.xml"/>

</beans>

3.整合結(jié)束

下面可以進(jìn)行視圖層的編寫！＜坡丁著榴！