環境搭建與配置

創建項目
導入相關的pom依賴

<?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.halloheihei.ssmdemo2</groupId>
    <artifactId>ssmdemo2</artifactId>
    <version>1.0-SNAPSHOT</version>
    <properties>
        <spring.version>5.0.2.RELEASE</spring.version>
        <slf4j.version>1.6.6</slf4j.version>
        <log4j.version>1.2.12</log4j.version>
        <mysql.version>5.1.6</mysql.version>
        <mybatis.version>3.4.5</mybatis.version>
    </properties>
    <dependencies>
        <!-- spring -->
        <dependency>
            <groupId>org.aspectj</groupId>
            <artifactId>aspectjweaver</artifactId>
            <version>1.6.8</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-aop</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-web</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-test</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-tx</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jdbc</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.12</version>
            <scope>compile</scope>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>${mysql.version}</version>
        </dependency>
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>servlet-api</artifactId>
            <version>2.5</version>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>javax.servlet.jsp</groupId>
            <artifactId>jsp-api</artifactId>
            <version>2.0</version>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>jstl</groupId>
            <artifactId>jstl</artifactId>
            <version>1.2</version>
        </dependency> <!-- log start -->
        <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
            <version>${log4j.version}</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-api</artifactId>
            <version>${slf4j.version}</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-log4j12</artifactId>
            <version>${slf4j.version}</version>
        </dependency> <!-- log end -->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>${mybatis.version}</version>
        </dependency>
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis-spring</artifactId>
            <version>1.3.0</version>
        </dependency>
        <dependency>
            <groupId>c3p0</groupId>
            <artifactId>c3p0</artifactId>
            <version>0.9.1.2</version>
            <type>jar</type>
            <scope>compile</scope>
        </dependency>
    </dependencies>
    <build>
        <finalName>ssm</finalName>
        <pluginManagement>
            <plugins>
                <plugin>
                    <groupId>org.apache.maven.plugins</groupId>
                    <artifactId>maven-compiler-plugin</artifactId>
                    <version>3.2</version>
                    <configuration>
                        <source>1.8</source>
                        <target>1.8</target>
                        <encoding>UTF-8</encoding>
                        <showWarnings>true</showWarnings>
                    </configuration>
                </plugin>
            </plugins>
        </pluginManagement>
    </build>


</project>

3. 創建基本結構和配置框架

com.hallheihei.pojo 或者 com.halloheihei.domain
com.halloheihei.dao
com.halloheihei.service
com.halloheihei.controlller

在resources中創建 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"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:aop="http://www.springframework.org/schema/aop"
       xmlns:tx="http://www.springframework.org/schema/tx"
       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/aop
			    http://www.springframework.org/schema/aop/spring-aop.xsd
			    http://www.springframework.org/schema/tx
			    http://www.springframework.org/schema/tx/spring-tx.xsd
			    http://www.springframework.org/schema/mvc
			    http://www.springframework.org/schema/mvc/spring-mvc.xsd">
</beans>

1 dao層整合

編寫pojo類類名Books

package com.halloheihei.domain;

/**
 * @author halloheihei
 * @create 2019-11-01 13:36
 */
public class Books {

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


    public int getBookID() {
        return bookID;
    }

    public void setBookID(int bookID) {
        this.bookID = bookID;
    }

    public String getBookName() {
        return bookName;
    }

    public void setBookName(String bookName) {
        this.bookName = bookName;
    }

    public String getDetail() {
        return detail;
    }

    public void setDetail(String detail) {
        this.detail = detail;
    }

    public int getBookCounts() {
        return bookCounts;
    }

    public void setBookCounts(int bookCounts) {
        this.bookCounts = bookCounts;
    }
}

編寫dao 接口，以讓mybatis-mapper.xml實現

package com.halloheihei.dao;

import com.halloheihei.domain.Books;

import java.util.List;

/**
 * @author halloheihei
 * @create 2019-11-01 13:35
 */
public interface BookDao {

    //增加一個Book
    int addBook(Books books);

    //根據id刪除一個Book
    int deleteBookById(int id);

    //更新Book
    int updateBook(Books books);

    //根據id查詢,返回一個Book
    Books queryBookById(int id);

    //查詢全部Book,返回list集合
    List<Books> queryAllBook();
}

編寫map.xml文件文件名與dao的接口文件名一直，並且放入resources中，文件目錄需要與dao中接口目錄一致 Bookdao.xml

<?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.halloheihei.dao.BookDao">

    <!--增加一個Book-->
    <insert id="addBook" parameterType="Books">
        insert into test.books(bookName,bookCounts,detail)
        values (#{bookName}, #{bookCounts}, #{detail})
    </insert>

    <!--根據id刪除一個Book-->
    <delete id="deleteBookById" parameterType="int">
        delete from test.books where bookID=#{bookID}
    </delete>

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

    <!--根據id查詢,返回一個Book-->
    <select id="queryBookById" resultType="Books">
        select * from test.books
        where bookID = #{bookID}
    </select>

    <!--查詢全部Book-->
    <select id="queryAllBook" resultType="Books">
        SELECT * from test.books
    </select>

</mapper>

在applicationContext.xml中添加

<!--dao層配置開始-->
    <!--mybatis 數據庫連接池配置-->
    <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">
        <property name="driverClassName" value="com.mysql.jdbc.Driver"/>
        <property name="url" value="jdbc:mysql://localhost:3306/test"/>
        <property name="username" value="root"/>
        <property name="password" value="123456"/>
    </bean>


    <!--mapper配置-->
    <!--spring 管理 sqlSessionFactory ，使用mybatis 和 spring整合的包-->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <!--數據庫連接池-->
        <property name="dataSource" ref="dataSource"/>

        <!--實體類別名-->
        <property name="typeAliasesPackage" value="com.halloheihei.domain"/>
    </bean>

    <!--mapper 掃描器 用來生產代理對象-->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.halloheihei.dao"/>
    </bean>
    <!--dao層配置結束-->

測試

 @Test
    public void testFind() {

        ApplicationContext applicationContext = new ClassPathXmlApplicationContext("classpath:applicationContext.xml");

        BookDao bookDao = applicationContext.getBean(BookDao.class);
        Books books = bookDao.queryBookById(3);
        System.out.println(books.getBookName());
    }

2 service層整合

編寫service接口

package com.halloheihei.service;

import com.halloheihei.domain.Books;

import java.util.List;

/**
 * @author halloheihei
 * @create 2019-11-01 14:20
 */
public interface BooksService {
    //增加一個Book
    int addBook(Books books);

    //根據id刪除一個Book
    int deleteBookById(int id);

    //更新Book
    int updateBook(Books books);

    //根據id查詢,返回一個Book
    Books queryBookById(int id);

    //查詢全部Book,返回list集合
    List<Books> queryAllBook();
}

編寫service接口實現類

package com.halloheihei.service.impl;

import com.halloheihei.dao.BookDao;
import com.halloheihei.domain.Books;
import com.halloheihei.service.BooksService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;

/**
 * @author halloheihei
 * @create 2019-11-01 14:21
 */
@Service
public class BooksServiceImpl implements BooksService {

    @Autowired
    private BookDao bookDao;

    public int addBook(Books books) {
        return 0;
    }

    public int deleteBookById(int id) {
        return 0;
    }

    public int updateBook(Books books) {
        return 0;
    }

    public Books queryBookById(int id) {
        return bookDao.queryBookById(2);
    }

    public List<Books> queryAllBook() {
        return null;
    }
}

配置applicationContext.xml

<!--service 配置文件開始-->
    <context:component-scan base-package="com.halloheihei.service"/>

    <!--配置事務管理器-->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"/>
    </bean>

    <!--&lt;!&ndash;配置事務通知&ndash;&gt;-->
    <tx:advice id="advice">
        <tx:attributes>
            <tx:method name="save*" propagation="REQUIRED"/>
            <tx:method name="update*" propagation="REQUIRED"/>
            <tx:method name="find*" propagation="REQUIRED"/>
            <tx:method name="delete*" propagation="REQUIRED"/>
            <tx:method name="*" propagation="REQUIRED"/>
        </tx:attributes>
    </tx:advice>

    <!--配置切面-->
    <aop:config>
        <aop:pointcut id="pointcut" expression="execution(* com.halloheihei.service.impl.*.*(..))"/>
        <aop:advisor advice-ref="advice" pointcut-ref="pointcut"/>
    </aop:config>

    <!--service 配置文件結束-->

測試

 @Test
    public void testServiceFind() {

        ApplicationContext applicationContext = new ClassPathXmlApplicationContext("classpath:applicationContext.xml");

        BooksService bookDao = applicationContext.getBean(BooksService.class);
        Books books = bookDao.queryBookById(3);
        System.out.println(books.getBookName());
    }

3 整合前端和controller

編寫控制器文件 BookController

package com.halloheihei.controller;

import com.halloheihei.domain.Books;
import com.halloheihei.service.BooksService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;

/**
 * @author halloheihei
 * @create 2019-11-01 14:47
 */
@Controller
@RequestMapping("/bb")
public class BookController {

    @Autowired
    private BooksService booksService;

    @RequestMapping("/cc")
    public String find(Model model) {

        Books books = booksService.queryBookById(3);
        System.out.println(books.getBookName());

        System.out.println(books);
        model.addAttribute("book",books );
        return "hh";
    }
}

編寫jsp輸出文件 show.jsp

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>修改信息</title>
</head>
<body>

這裏的書本信息是 ${book.bookName}


</body>
</html>

配置applicationContext.xml

<!--spring mvc 配置-->
    <!--處理器映射器，處理器適配器-->
    <mvc:annotation-driven/>
    <!--釋放靜態 資源-->
    <mvc:default-servlet-handler/>
    <!--組件掃描-->
    <context:component-scan base-package="com.halloheihei.controller"/>
    <!--視圖解析器-->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/jsp/"></property>
        <property name="suffix" value=".jsp"></property>
    </bean>

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_3_1.xsd"
         version="3.1">


    <welcome-file-list>
        <welcome-file>index.jsp</welcome-file>
    </welcome-file-list>

    <!--DispatcherServlet-->
    <servlet>
        <servlet-name>DispatcherServlet</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <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>

    <!-- 配置Spring的監聽器 -->
    <!--<listener>-->
        <!--<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>-->
    <!--</listener> &lt;!&ndash; 配置加載類路徑的配置文件 &ndash;&gt;-->
    <!--<context-param>-->
        <!--<param-name>contextConfigLocation</param-name>-->
        <!--<param-value>classpath:applicationContext.xml</param-value>-->
    <!--</context-param>-->


    <!--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過期時間-->
    <session-config>
        <session-timeout>15</session-timeout>
    </session-config>
</web-app>

啓動服務器測試

項目目錄截圖展示：

spring-spring mvc -mybatis 整合基礎步驟（idea 下）

環境搭建與配置

1 dao層整合

2 service層整合

3 整合前端和controller

認知提升的方法

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