SSM整合-从0开始-图书管理

文章目录

  • 一、项目搭建,导入依赖
  • 二、spring整合mybatis
  • 三、测试
  • 四、插件反向生成


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&amp;characterEncoding=utf-8&amp;useSSL=false&amp;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

总结

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