[TOC]

项目结构

导入相关的pom依赖

<!--依赖：junit,数据库驱动，连接池，servlet，jsp，mybatis，mybatis-spring，spring--><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>5.1.47</version></dependency><!--数据库连接池：c3p0--><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><!--sping--><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>1.16.10</version></dependency><dependency><groupId>org.aspectj</groupId><artifactId>aspectjweaver</artifactId><version>1.8.13</version></dependency></dependencies>

Maven资源过滤设置

<!--静态资源导出问题--><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>

建立基本结构和配置框架

com.zwt.pojo

com.zwt.dao

com.zwt.service

com.zwt.controller

mybatis-config.xml

<?xml version="1.0" encoding="UTF-8" ?><!DOCTYPE configurationPUBLIC "-//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/beanshttp://www.springframework.org/schema/beans/spring-beans.xsd"></beans>

Mybatis层编写

数据库配置文件 database.properties

Mybatis层编写1、数据库配置文件 database.properties

jdbc.driver=com.mysql.jdbc.Driver#如果使用的是MySql8.0+，增加一个时区的配置； &serverTimezone=Asia/shagnhaijdbc.url=jdbc:mysql://localhost:3306/mybatis?useSSL=false&useUnicode=true&characterEncoding=UTF-8&useJDBCCompliantTimezoneShift=true&useLegacyDatetimeCode=false&serverTimezone=UTCjdbc.username=rootjdbc.password=

编写MyBatis的核心配置文件

<?xml version="1.0" encoding="UTF-8" ?><!DOCTYPE configurationPUBLIC "-//mybatis.org//DTD Config 3.0//EN""http://mybatis.org/dtd/mybatis-3-config.dtd"><configuration><!--配置数据源，整合后交给spring去做--><!--起别名--><settings><setting name="logImpl" value="STDOUT_lOGGING"/></settings><typeAliases><package name="com.zwt.pojo"/></typeAliases><mappers><mapper class="com.zwt.dao.BookMapper"/></mappers></configuration>

编写数据库对应的实体类 com.zwt.pojo.Books

package com.zwt.pojo;import lombok.AllArgsConstructor;import lombok.Data;import lombok.NoArgsConstructor;@Data@AllArgsConstructor@NoArgsConstructorpublic class Books {private int bookId;private String bookName;private int bookCounts;private String detail;}

编写Dao层的 Mapper接口！

package com.zwt.dao;import com.zwt.pojo.Books;import java.util.List;public interface BookMapper {//增加一本书int addBook(Books books);//删除一本书int deleteBookById(int id);//修改一本书int updateBook(Books books);//查找一本书Books queryBookById(int id);//查找所有书List<Books> queryAllBook();//新增搜索框功能Books queryBookByName(String bookName);}

编写接口对应的 Mapper.xml 文件。需要导入MyBatis的包；

<?xml version="1.0" encoding="UTF-8" ?><!DOCTYPE mapperPUBLIC "-//mybatis.org//DTD Config 3.0//EN""http://mybatis.org/dtd/mybatis-3-mapper.dtd"><mapper namespace="com.zwt.dao.BookMapper"><insert id="addBook" parameterType="Books">insert into ssmbuild.books(bookName,bookCounts,detail)values (#{bookName},#{bookCounts},#{detail});</insert><delete id="deleteBookById" parameterType="int">delete from ssmbuild.books where bookId=#{bookId}</delete><update id="updateBook" parameterType="Books">update ssmbuild.books set bookName=#{bookName},bookCounts=#{bookCounts},detail=#{detail}where bookId=#{bookId};</update><select id="queryBookById" resultType="Books">select * from ssmbuild.bookswhere bookId=#{bookId}</select><select id="queryAllBook" resultType="Books">select * from ssmbuild.books</select><select id="queryBookByName" resultType="Books">select * from ssmbuild.books where bookName=#{bookName}</select></mapper>

编写Service层的接口和实现类

接口：

package com.zwt.service;import com.zwt.pojo.Books;import java.util.List;public interface BookService {//增加一本书int addBook(Books books);//删除一本书int deleteBookById(int id);//修改一本书int updateBook(Books books);//查找一本书Books queryBookById(int id);//查找所有书List<Books> queryAllBook();//新增搜索框功能Books queryBookByName(String bookName);}

实现类：

package com.zwt.service;import com.zwt.dao.BookMapper;import com.zwt.pojo.Books;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.stereotype.Service;import java.util.List;@Servicepublic class BookServiceImpl implements BookService{//service调dao层：组合Dao@Autowiredprivate BookMapper bookMapper;public void setBookMapper(BookMapper bookMapper) {this.bookMapper = bookMapper;}public int addBook(Books books) {return bookMapper.addBook(books);}public int deleteBookById(int id) {return bookMapper.deleteBookById(id);}public int updateBook(Books books) {return bookMapper.updateBook(books);}public Books queryBookById(int id) {return bookMapper.queryBookById(id);}public List<Books> queryAllBook() {return bookMapper.queryAllBook();}public Books queryBookByName(String bookName) {return bookMapper.queryBookByName(bookName);}}

Spring层

1、配置Spring整合MyBatis，我们这里数据源使用c3p0连接池；2、编写Spring整合Mybatis的相关的配置文件；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/beanshttp://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context https://www.springframework.org/schema/context/spring-context.xsd"><!--关联数据库配置文件--><context:property-placeholder location="classpath:database.properties"/><!--2、连接池dbcp：半自动化操作，不能自动连接c3p0:自动化操作（自动化的加载配置文件，并且可以自动设置到对象中！）druid  hikari--><bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"><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、sqlSessionFactory--><bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"><property name="dataSource" ref="dataSource"/><!--绑定Mybatis的配置文件--><property name="configLocation" value="classpath:mybatis-config.xml"/></bean><!--4、配置dao接口扫描包，动态的实现了Dao接口可以注入到Spring容器中--><bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"><!--注入sqlSessionFactory--><property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/><!--要扫描的dao包--><property name="basePackage" value="com.zwt.dao"/></bean></beans>

Spring整合service层

<?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"xmlns:aop="http://www.springframework.org/schema/aop"xsi:schemaLocation="http://www.springframework.org/schema/beanshttp://www.springframework.org/schema/beans/spring-beans.xsdhttp://www.springframework.org/schema/contexthttps://www.springframework.org/schema/context/spring-context.xsdhttp://www.springframework.org/schema/txhttp://www.springframework.org/schema/tx/spring-tx.xsdhttp://www.springframework.org/schema/aophttps://www.springframework.org/schema/aop/spring-aop.xsd"><!--1、扫描service下的包--><context:component-scan base-package="com.zwt.service"/><!--2、将我们的所有业务类，注入到Spring，可以通过配置，或者注解实现--><bean id="BookServiceImpl" class="com.zwt.service.BookServiceImpl"><property name="bookMapper" ref="bookMapper"/></bean><!--3、声明式事务配置--><bean id="transactionManage" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"><!--注入数据源--><property name="dataSource" ref="dataSource"/></bean><!--4、aop事务支持--><!--结合AOP实现事务的织入--><!--配置事务的通知--><tx:advice id="txAdvice" transaction-manager="transactionManage"><!--给哪些方法配置事务--><!--配置事务的传播特性--><tx:attributes><tx:method name="*" propagation="REQUIRED"/></tx:attributes></tx:advice><!--配置事务的切入--><aop:config><aop:pointcut id="txPointCut" expression="execution(* com.zwt.dao.*.*(..))"/><aop:advisor advice-ref="txAdvice" pointcut-ref="txPointCut"/></aop:config></beans>

Spring就是一个大杂烩，一个容器！

SpringMVC层

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"><!--DispatchServlet--><servlet><servlet-name>springmvc</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>springmvc</servlet-name><url-pattern>/</url-pattern></servlet-mapping><!--乱码过滤--><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--><session-config><session-timeout>15</session-timeout></session-config></web-app>

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/beanshttp://www.springframework.org/schema/beans/spring-beans.xsdhttp://www.springframework.org/schema/mvchttp://www.springframework.org/schema/mvc/spring-mvc.xsdhttp://www.springframework.org/schema/contexthttps://www.springframework.org/schema/context/spring-context.xsd"><!--1、注解驱动--><mvc:annotation-driven/><!--2、静态资源过滤--><mvc:default-servlet-handler/><!--3、扫描包：controller--><context:component-scan base-package="com.zwt.controller"/><!--4、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>

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/beanshttp://www.springframework.org/schema/beans/spring-beans.xsd"><import resource="classpath:spring-dao.xml"/><import resource="classpath:spring-mvc.xml"/><import resource="classpath:spring-service.xml"/></beans>

Controller 和 视图层编写

BookController 类编写 ， 方法一：查询全部书籍

@Controller//@RequestMapping("/book")public class BookController {//controller调service层@Autowired@Qualifier("BookServiceImpl")private BookService bookService;//查询全部的书籍，并且返回到一个书籍展示页面@RequestMapping("/allBook")public String list(Model model){List<Books> list = bookService.queryAllBook();model.addAttribute("list",list);return "allBook";}}

编写首页 index.jsp

<%@ page contentType="text/html;charset=UTF-8" language="java" %><html><head><title>首页</title><style>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:5px;}</style></head><body><h3><a href="${pageContext.request.contextPath}/allBook">点击进入列表页</a></h3></body></html>

…………………………………………

项目效果

项目环境

maven—-》jdk—-》spring—-》test—-》Tomcat