一、项目搭建、导入依赖
pom.xml(jar包版本号对应)
<?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>org.example</groupId>
<artifactId>bookmanager</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>war</packaging>
<properties>
<maven.compiler.source>11</maven.compiler.source>
<maven.compiler.target>11</maven.compiler.target>
<spring.version>5.2.13.RELEASE</spring.version>
<mybatis.version>3.5.6</mybatis.version>
<mybatis.spring.version>1.3.3</mybatis.spring.version>
<pagehelper.version>5.1.10</pagehelper.version>
<mysql.version>8.0.30</mysql.version>
<druid.version>1.2.3</druid.version>
<servlet-api.version>4.0.1</servlet-api.version>
<jackson.version>2.9.6</jackson.version>
<log4j.version>1.2.17</log4j.version>
<junit.version>4.12</junit.version>
</properties>
<dependencies>
<!-- spring -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</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>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aspects</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>commons-fileupload</groupId>
<artifactId>commons-fileupload</artifactId>
<version>1.3.1</version>
</dependency><!-- Mybatis -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>${mybatis.version}</version>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>${mybatis.spring.version}</version>
</dependency>
<!-- 分页插件 -->
<dependency>
<groupId>com.github.pagehelper</groupId>
<artifactId>pagehelper</artifactId>
<version>${pagehelper.version}</version>
</dependency>
<!-- MySql -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>${mysql.version}</version>
</dependency>
<!-- 连接池 -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>${druid.version}</version>
</dependency>
<!-- servlet -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>${servlet-api.version}</version>
<scope>provided</scope>
</dependency>
<!-- Jackson Json处理工具包 -->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>${jackson.version}</version>
</dependency>
<!-- log4j -->
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>${log4j.version}</version>
</dependency>
<!-- junit -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>${junit.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId><version>${spring.version}</version>
</dependency>
<!--@Resource注解的依赖-->
<dependency>
<groupId>javax.annotation</groupId>
<artifactId>javax.annotation-api</artifactId>
<version>1.3.2</version>
</dependency>
</dependencies>
<!-- 插件配置 -->
<build>
<resources>
<resource>
<directory>src/main/java</directory>
<!--所在的目录-->
<includes>
<!--包括目录下的.properties,.xml 文件都会被扫描到-->
<include>**/*.properties</include>
<include>**/*.xml</include>
</includes>
<filtering>false</filtering>
</resource>
<resource>
<directory>src/main/resources</directory>
<includes>
<include>**/*.*</include>
</includes>
<filtering>false</filtering>
</resource>
</resources>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.4.2</version>
<configuration>
<skipTests>true</skipTests>
</configuration>
</plugin>
</plugins>
</pluginManagement>
<plugins>
<!-- 设置项目的编译版本 -->
<!-- <plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.8</source>
<target>1.8</target>
<encoding>UTF-8</encoding>
</configuration>
</plugin>-->
<!-- 设置tomcat插件 -->
<plugin>
<groupId>org.apache.tomcat.maven</groupId>
<artifactId>tomcat7-maven-plugin</artifactId>
<version>2.2</version>
<configuration>
<!-- 指定端口 -->
<port>8082</port>
<!-- 请求路径 -->
<path>/</path>
<uriEncoding>UTF-8</uriEncoding>
</configuration>
</plugin>
<!--反向生成插件-->
<plugin>
<groupId>org.mybatis.generator</groupId>
<artifactId>mybatis-generator-maven-plugin</artifactId>
<version>1.3.5</version>
<configuration>
<!--配置文件的路径-->
<configurationFile>src/main/resources/generatorConfig.xml</configurationFile>
<overwrite>true</overwrite>
</configuration>
<dependencies>
<dependency>
<groupId>org.mybatis.generator</groupId>
<artifactId>mybatis-generator-core</artifactId>
<version>1.3.5</version>
</dependency>
</dependencies>
</plugin>
</plugins>
</build>
</project>
二、spring整合mybatis
1.mybatis.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>
<settings>
<setting name="logImpl" value="LOG4J" />
</settings>
<!--spring 接管其他的工作 数据源 映射文件注册 插件-->
</configuration>
2.log4j.properties(日志)
# Global logging configuration info warning error
log4j.rootLogger=DEBUG,stdout
# Console output...
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%5p [%t] - %m%n
3.jdbc.properties
jdbc.driver=com.mysql.cj.jdbc.Driver
jdbc.url=jdbc:mysql://127.0.0.1:3306/ssm?useUnicode=true&characterEncoding=utf-8&useSSL=false&serverTimezone=GMT
jdbc.username=root
jdbc.password=123456
4.spring.xml(接管mybatis.xml,mybatis可有可无)
<?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"
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/tx
http://www.springframework.org/schema/tx/spring-tx.xsd
">
<!--数据源-->
<context:component-scan base-package="com.xhl.pojo,com.xhl.service"/>
<!--关联配置文件-->
<context:property-placeholder location="classpath*:jdbc.properties"/>
<!--配置数据源,druid(可换成其他)-->
<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">
<!--驱动可省略,可根据url自行判断-->
<property name="driverClassName" value="${jdbc.driver}"></property>
<property name="url" value="${jdbc.url}"></property>
<property name="username" value="${jdbc.username}"></property>
<property name="password" value="${jdbc.password}"></property>
</bean>
<!--创建工厂,创建连接-->
<bean id="sessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<!--接管读取mybatis文件-->
<property name="configLocation" value="classpath:mybatis.xml"/>
<property name="dataSource" ref="dataSource"/>
<!--配置别名-->
<property name="typeAliasesPackage" value="com.xhl.pojo,com.xhl.mapper"/>
<!--配置mapper的映射文件
<property name="mapperLocations" value="com/xhl/mapper/*.xml"/>
-->
<!--插件-->
<property name="plugins">
<array>
<!--分页配置-->
<bean id="pageInterceptor" class="com.github.pagehelper.PageInterceptor">
<property name="properties">
<value>
reasonable=true
</value>
</property>
</bean>
</array>
</property>
</bean>
<!--动态代理-->
<bean id="mapperScannerConfigurer" class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.xhl.mapper"/>
<property name="sqlSessionFactoryBeanName" value="sessionFactory"/>
</bean>
<tx:annotation-driven transaction-manager="transactionManager"/>
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"/>
</bean>
</beans>
5.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">
<welcome-file-list>
<welcome-file>/pages/index.html</welcome-file>
</welcome-file-list>
<!--spring的配置-->
<context-param>
<!--contextConfigLocation:表示用于加载 Bean的配置文件
classpath和classpath*区别:
classpath:只会到你的class路径中查找找文件。
classpath*:不仅包含class路径,还包括jar文件中(class路径)进行查找。
-->
<param-name>contextConfigLocation</param-name>
<param-value>classpath*:spring.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!--SpringMVC的配置-->
<servlet>
<servlet-name>dispatcherServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<!-- 创建前端控制器的时候读取springmvc配置文件启动ioc容器 -->
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath*:springmvc.xml</param-value>
</init-param>
<!-- Tomcat启动就创建此对象 -->
<load-on-startup>1</load-on-startup>
</servlet>
<!-- 配置拦截路径url,所有请求都会被前端控制器拦截处理 -->
<servlet-mapping>
<servlet-name>dispatcherServlet</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<!-- 使用Rest风格的URI 将页面普通的post请求转为指定的delete或者put请求
原理:在Ajax中发送post请求后,带_method参数,将其修改为PUT,或者DELETE请求-->
<filter>
<filter-name>httpMethodFilter</filter-name>
<filter-class>
org.springframework.web.filter.HiddenHttpMethodFilter
</filter-class>
</filter>
<filter-mapping>
<filter-name>httpMethodFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<!--注册字符集过滤器:post请求中文乱码问题的解决方案-->
<filter>
<filter-name>characterEncodingFilter</filter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
<!--指定字符集-->
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
<!--强制request使用字符集encoding-->
<init-param>
<param-name>forceRequestEncoding</param-name>
<param-value>true</param-value>
</init-param>
<!--强制response使用字符集encoding-->
<init-param>
<param-name>forceResponseEncoding</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>characterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
</web-app>
6.generatorConfig.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE generatorConfiguration PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN" "http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd">
<!-- 配置生成器 -->
<generatorConfiguration>
<!--1、数据库驱动jar:添加自己的jar路径 -->
<classPathEntry location="D:\luan\apache-maven-3.3.9\repertory\mysql\mysql-connector-java\8.0.30\mysql-connector-java-8.0.30.jar" />
<context id="MyBatis" targetRuntime="MyBatis3">
<!--去除注释 -->
<commentGenerator>
<property name="suppressAllComments" value="true" />
</commentGenerator>
<!--2、数据库连接 -->
<jdbcConnection
driverClass="com.mysql.cj.jdbc.Driver"
connectionURL="jdbc:mysql://127.0.0.1:3306/ssmbuild?useUnicode=true&characterEncoding=utf-8&useSSL=false&serverTimezone=GMT"
userId="root"
password="123456">
<property name="nullCatalogMeansCurrent" value="true"/>
</jdbcConnection>
<!-- 默认false,把JDBC DECIMAL 和 NUMERIC 类型解析为 Integer; 为 true时把JDBC DECIMAL和NUMERIC类型解析为java.math.BigDecimal -->
<javaTypeResolver>
<property name="forceBigDecimals" value="false" />
</javaTypeResolver>
<!--3、生成实体类 指定包名 以及生成的地址 (可以自定义地址,但是路径不存在不会自动创建 使用Maven生成在target目录下,会自动创建) -->
<javaModelGenerator targetPackage="com.xhl.pojo" targetProject="src\main\java">
<property name="trimStrings" value="true" />
</javaModelGenerator> <!--4、生成SQLmapper.xml映射文件 -->
<sqlMapGenerator targetPackage="com.xhl.mapper" targetProject="src\main\resources">
</sqlMapGenerator>
<!--5、生成Dao(Mapper)接口文件,-->
<javaClientGenerator type="XMLMAPPER" targetPackage="com.xhl.mapper" targetProject="src\main\java">
</javaClientGenerator>
<!--6、要生成哪些表(更改tableName和domainObjectName就可以) -->
<!-- tableName:要生成的表名 enableCountByExample:Count语句中加入where条件查询,默认为true开启 enableUpdateByExample:Update语句中加入where条件查询,默认为true开启 enableDeleteByExample:Delete语句中加入where条件查询,默认为true开启 enableSelectByExample:Select多条语句中加入where条件查询,默认为true开启 selectByExampleQueryId:Select单个对象语句中加入where条件查询,默认为true开启 -->
<!-- <table tableName="team">
enableCountByExample="false"
enableUpdateByExample="false"
enableUpdateByPrimaryKey="false"
enableDeleteByExample="false"
enableDeleteByPrimaryKey="false"
enableSelectByExample="false"
selectByExampleQueryId="false">
<property name="useActualColumnNames" value="true"/>
</table>-->
<table tableName="books">
<property name="useActualColumnNames" value="true"/>
</table>
</context>
</generatorConfiguration>
三、测试
创建静态资源,测试配置文件是否有问题
四、插件反向生成
五、查询功能实现
mapper层
service层
controller层
jsp页面