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  • Maven+Spring MVC Spring Mybatis配置

    环境:

    • Eclipse Neon
    • JDK1.8.0
    • Tomcat8.0

    先决条件:

    • Eclipse先用maven向导创建web工程。参见本站之前随笔。
    • 本机安装完成mysql5;新建用户xuxy03设置为DB Manager角色;新建数据库genubi,新建一个示例表user_info_t。运行SQL:
        DROP TABLE IF EXISTS `user_info_t`;  
          
        CREATE TABLE `user_info_t` (  
          `id` int(11) NOT NULL AUTO_INCREMENT,  
          `user_name` varchar(40) NOT NULL,  
          `password` varchar(255) NOT NULL,  
          `age` int(4) NOT NULL,  
          PRIMARY KEY (`id`)  
        ) ENGINE=InnoDB AUTO_INCREMENT=2 DEFAULT CHARSET=utf8;  
          
        /*Data for the table `user_info_t` */  
          
        insert  into `user_info_t`(`id`,`user_name`,`password`,`age`) values (1,'测试','sfasgfaf',24);  

    关键内容

     工程目录截图(红叉问题后续处理,此处可无视):

    pom.xml文件:

    <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/maven-v4_0_0.xsd">
        <modelVersion>4.0.0</modelVersion>
        <groupId>rst</groupId>
        <artifactId>genubi</artifactId>
        <packaging>war</packaging>
        <version>0.0.1-SNAPSHOT</version>
        <name>genubi Maven Webapp</name>
        <url>http://maven.apache.org</url>
        <distributionManagement>
            <repository>
                <id>nexus</id>
                <name>Releases</name>
                <url>http://localhost:8081/repository/maven-releases</url>
            </repository>
            <snapshotRepository>
                <id>nexus</id>
                <name>Snapshot</name>
                <url>http://localhost:8081/repository/maven-snapshots</url>
            </snapshotRepository>
        </distributionManagement>
    
        <properties>
            <!-- spring版本号 -->
            <spring.version>4.0.2.RELEASE</spring.version>
            <!-- mybatis版本号 -->
            <mybatis.version>3.2.6</mybatis.version>
            <!-- log4j日志文件管理包版本 -->
            <slf4j.version>1.7.7</slf4j.version>
            <log4j.version>1.2.17</log4j.version>
        </properties>
    
        <dependencies>
            <dependency>
                <groupId>junit</groupId>
                <artifactId>junit</artifactId>
                <version>4.11</version>
                <!-- 表示开发的时候引入,发布的时候不会加载此包 -->
                <scope>test</scope>
            </dependency>
            <!-- spring核心包 -->
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-core</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-oxm</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>${spring.version}</version>
            </dependency>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-webmvc</artifactId>
                <version>${spring.version}</version>
            </dependency>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-aop</artifactId>
                <version>${spring.version}</version>
            </dependency>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-context-support</artifactId>
                <version>${spring.version}</version>
            </dependency>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-test</artifactId>
                <version>${spring.version}</version>
            </dependency>
            <!-- mybatis核心包 -->
            <dependency>
                <groupId>org.mybatis</groupId>
                <artifactId>mybatis</artifactId>
                <version>${mybatis.version}</version>
            </dependency>
            <!-- mybatis/spring包 -->
            <dependency>
                <groupId>org.mybatis</groupId>
                <artifactId>mybatis-spring</artifactId>
                <version>1.2.2</version>
            </dependency>
            <!-- 导入java ee jar 包 -->
            <dependency>
                <groupId>javax</groupId>
                <artifactId>javaee-api</artifactId>
                <version>7.0</version>
            </dependency>
            <!-- 导入Mysql数据库链接jar包 -->
            <dependency>
                <groupId>mysql</groupId>
                <artifactId>mysql-connector-java</artifactId>
                <version>5.1.30</version>
            </dependency>
            <!-- 导入dbcp的jar包,用来在applicationContext.xml中配置数据库 -->
            <dependency>
                <groupId>commons-dbcp</groupId>
                <artifactId>commons-dbcp</artifactId>
                <version>1.2.2</version>
            </dependency>
            <!-- JSTL标签类 -->
            <dependency>
                <groupId>jstl</groupId>
                <artifactId>jstl</artifactId>
                <version>1.2</version>
            </dependency>
            <!-- 日志文件管理包 -->
            <!-- log start -->
            <dependency>
                <groupId>log4j</groupId>
                <artifactId>log4j</artifactId>
                <version>${log4j.version}</version>
            </dependency>
            <!-- 格式化对象,方便输出日志 -->
            <dependency>
                <groupId>com.alibaba</groupId>
                <artifactId>fastjson</artifactId>
                <version>1.1.41</version>
            </dependency>
            <dependency>
                <groupId>org.slf4j</groupId>
                <artifactId>slf4j-api</artifactId>
                <version>${slf4j.version}</version>
            </dependency>
            <dependency>
                <groupId>org.slf4j</groupId>
                <artifactId>slf4j-log4j12</artifactId>
                <version>${slf4j.version}</version>
            </dependency>
            <!-- log end -->
            <!-- 映入JSON -->
            <dependency>
                <groupId>org.codehaus.jackson</groupId>
                <artifactId>jackson-mapper-asl</artifactId>
                <version>1.9.13</version>
            </dependency>
            <!-- 上传组件包 -->
            <dependency>
                <groupId>commons-fileupload</groupId>
                <artifactId>commons-fileupload</artifactId>
                <version>1.3.1</version>
            </dependency>
            <dependency>
                <groupId>commons-io</groupId>
                <artifactId>commons-io</artifactId>
                <version>2.4</version>
            </dependency>
            <dependency>
                <groupId>commons-codec</groupId>
                <artifactId>commons-codec</artifactId>
                <version>1.9</version>
            </dependency>
        </dependencies>
        <build>
            <plugins>
                <plugin>
                    <groupId>org.mybatis.generator</groupId>
                    <artifactId>mybatis-generator-maven-plugin</artifactId>
                    <version>1.3.2</version>
                    <configuration>
                        <configurationFile>src/main/resources/generatorConfig.xml</configurationFile>
                        <verbose>true</verbose>
                        <overwrite>true</overwrite>
                    </configuration>
                    <dependencies>
                        <dependency>
                            <groupId>org.mybatis.generator</groupId>
                            <artifactId>mybatis-generator-core</artifactId>
                            <version>1.3.2</version>
                        </dependency>
                    </dependencies>
                </plugin>
            </plugins>
        </build>
    </project>

    右键单击项目根目录->properties,把Maven工程编译依赖的包添加到web部署中(否则启动server时会报java.lang.ClassNotFoundException: org.springframework.web.context.ContextLoaderListener的异常):

    generatorConfig.xml内容:

    <?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">
    <generatorConfiguration>
    
        <!-- maven plugin 调用此处的location时,是以pom文件位置为当前路径: -->
        <classPathEntry location="src/main/resources/mysql-connector-java-5.1.30.jar" />
        <context id="DB2Tables" targetRuntime="MyBatis3">
            <commentGenerator>
                <property name="suppressDate" value="true" />
                <!-- 是否去除自动生成的注释 true:是 : false:否 -->
                <property name="suppressAllComments" value="true" />
            </commentGenerator>
            <!--数据库链接URL,用户名、密码 -->
            <jdbcConnection driverClass="com.mysql.jdbc.Driver"
                connectionURL="jdbc:mysql://localhost:3306/genubi" userId="xuxy03"
                password="xuxy03">
            </jdbcConnection>
            <javaTypeResolver>
                <property name="forceBigDecimals" value="false" />
            </javaTypeResolver>
            <!-- 生成模型的包名和位置 -->
            <javaModelGenerator targetPackage="com.rst.libra.genubi.domain"
                targetProject="src/main/java">
                <property name="enableSubPackages" value="true" />
                <property name="trimStrings" value="true" />
            </javaModelGenerator>
            <!-- 生成映射文件的包名和位置 -->
            <sqlMapGenerator targetPackage="com.rst.libra.genubi.mapping"
                targetProject="src/main/java">
                <property name="enableSubPackages" value="true" />
            </sqlMapGenerator>
            <!-- 生成DAO的包名和位置 -->
            <javaClientGenerator type="XMLMAPPER"
                targetPackage="com.rst.libra.genubi.dao" targetProject="src/main/java">
                <property name="enableSubPackages" value="true" />
            </javaClientGenerator>
            <!-- 要生成的表 tableName是数据库中的表名或视图名 domainObjectName是实体类名 -->
            <table tableName="user_info_t" domainObjectName="User"
                enableCountByExample="false" enableUpdateByExample="false"
                enableDeleteByExample="false" enableSelectByExample="false"
                selectByExampleQueryId="false"></table>
        </context>
    </generatorConfiguration> 

    jdbc.properties内容:

    driver=com.mysql.jdbc.Driver
    url=jdbc:mysql://localhost:3306/genubi
    username=xuxy03
    password=xuxy03
    
    #初始连接数:
    initialSize=0
    #最大连接数:
    maxActive=20
    #最大空闲:
    maxIdle=20
    #最小空闲:
    minIdle=1
    #最长等待时间:  
    maxWait=60000

    log4j.properties内容:

    log4j.rootLogger=INFO,Console,File
    #定义日志输出目的地为控制台
    log4j.appender.Console=org.apache.log4j.ConsoleAppender
    log4j.appender.Console.Target=System.out
    #可以灵活地指定日志输出格式,下面一行是指定具体的格式
    log4j.appender.Console.layout=org.apache.log4j.PatternLayout
    log4j.appender.Console.layout.ConversionPattern=[%c] - %m%n  
      
    #文件大小到达指定尺寸的时候产生一个新的文件
    log4j.appender.File=org.apache.log4j.RollingFileAppender
    #指定输出目录
    log4j.appender.File.File=logs/ssm.log
    #定义文件最大大小
    log4j.appender.File.MaxFileSize=10MB
    # 输出所以日志,如果换成DEBUG表示输出DEBUG以上级别日志  
    log4j.appender.File.Threshold=ALL
    log4j.appender.File.layout=org.apache.log4j.PatternLayout
    log4j.appender.File.layout.ConversionPattern=[%p] [%d{yyyy-MM-dd HH:mm:ss}][%c]%m%n

    web.xml内容:

    <?xml version="1.0" encoding="UTF-8"?>
    <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xmlns="http://java.sun.com/xml/ns/javaee"
        xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
        version="3.0">
        <display-name>Archetype Created Web Application</display-name>
        <!-- Spring和mybatis的配置文件 -->
        <context-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:spring-mybatis.xml</param-value>
        </context-param>
        <!-- 编码过滤器 -->
        <filter>
            <filter-name>encodingFilter</filter-name>
            <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
            <async-supported>true</async-supported>
            <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>
        <!-- Spring监听器 -->
        <listener>
            <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
        </listener>
        <!-- 防止Spring内存溢出监听器 -->
        <listener>
            <listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class>
        </listener>
    
        <!-- Spring MVC servlet -->
        <servlet>
            <servlet-name>SpringMVC</servlet-name>
            <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
            <init-param>
                <param-name>contextConfigLocation</param-name>
                <param-value>classpath:spring-mvc.xml</param-value>
            </init-param>
            <load-on-startup>1</load-on-startup>
            <async-supported>true</async-supported>
        </servlet>
        <servlet-mapping>
            <servlet-name>SpringMVC</servlet-name>
            <!-- 此处可以可以配置成*.do,对应struts的后缀习惯 -->
            <url-pattern>/</url-pattern>
        </servlet-mapping>
        <welcome-file-list>
            <welcome-file>/index.jsp</welcome-file>
        </welcome-file-list>
    
    </web-app>  

    applicationContext-bean.xml内容:

    <?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-3.0.xsd
            http://www.springframework.org/schema/context 
            http://www.springframework.org/schema/context/spring-context-3.0.xsd
            http://www.springframework.org/schema/tx 
            http://www.springframework.org/schema/tx/spring-tx-3.0.xsd">
    
        <context:component-scan base-package="com.rst.libra.genubi.service" />
    
        <!-- 用于持有ApplicationContext,可以使用SpringContextHolder.getBean('xxxx')的静态方法得到spring 
            bean对象 -->
        <bean class="com.rst.libra.genubi.base.SpringContextHolder" lazy-init="false" />
    
        <!-- 使用annotation注解方式配置事务 -->
        <tx:annotation-driven transaction-manager="transactionManager" />
        <!-- 使用JDBC事务 -->
        <bean id="transactionManager"
            class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
            <property name="dataSource" ref="dataSource" />
        </bean>
    
        <!-- 引入配置文件 -->
        <context:property-placeholder location="classpath:ini.properties" />
    
        <!--创建jdbc数据源 -->
        <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
            destroy-method="close">
            <property name="driverClassName" value="${driver}" />
            <property name="url" value="${url}" />
            <property name="username" value="${username}" />
            <property name="password" value="${password}" />
            <property name="maxActive" value="${maxActive}" />
            <property name="maxIdle" value="${maxIdle}" />
            <property name="minIdle" value="${minIdle}" />
        </bean>
    
        <!-- 配置SqlSessionFactoryBean -->
        <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
            <property name="dataSource" ref="dataSource" />
            <property name="configLocation" value="classpath:mybatis.xml" />
            <!-- <property name="mapperLocations"> <list> 表示在包或以下所有目录中,以-mapper.xml结尾所有文件 
                <value>classpath:config/**/*-mapper.xml</value> </list> </property> -->
        </bean>
    
        <!-- 配置mybatis dao注册,所有dao都继承sqlMapper annotationClass:当指定了annotationClass的时候,MapperScannerConfigurer将只注册使用了annotationClass注解标记的接口。 
            markerInterface:markerInterface是用于指定一个接口的,当指定了markerInterface之后,MapperScannerConfigurer将只注册继承自markerInterface的接口。 
            如果上述两个属性都指定了的话,那么MapperScannerConfigurer将取它们的并集,而不是交集。即使用了annotationClass进行标记或者继承自markerInterface 
            的接口都将被注册为一个MapperFactoryBean。 除了用于缩小注册Mapper接口范围的属性之外,我们还可以指定一些其他属性,如: sqlSessionFactory:这个属性已经废弃。当我们使用了多个数据源的时候我们就需要通过sqlSessionFactory来指定在注册MapperFactoryBean的时候需要使用的SqlSessionFactory, 
            因为在没有指定sqlSessionFactory的时候,会以Autowired的方式自动注入一个。换言之当我们只使用一个数据源的时候,即只定义了一个SqlSessionFactory的时候我们就可以不给 
            MapperScannerConfigurer指定SqlSessionFactory。 sqlSessionFactoryBeanName:它的功能跟sqlSessionFactory是一样的,只是它指定的是定义好的SqlSessionFactory对应的bean名称。 
            sqlSessionTemplate:这个属性已经废弃。它的功能也是相当于sqlSessionFactory的,因为就像前面说的那样,MapperFactoryBean最终还是使用的SqlSession的getMapper 
            方法取的对应的Mapper对象。当定义有多个SqlSessionTemplate的时候才需要指定它。对于一个MapperFactoryBean来说SqlSessionFactory和SqlSessionTemplate只需要其中一个就可以了, 
            当两者都指定了的时候,SqlSessionFactory会被忽略。 sqlSessionTemplateBeanName:指定需要使用的sqlSessionTemplate对应的bean名称。 -->
        <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
            <property name="basePackage" value="com.rst.libra.genubi.**.dao" />
            <property name="markerInterface" value="com.rst.libra.genubi.base.dao.SqlMapper" />
        </bean>
    </beans>

    spring-mvc.xml内容:

    <?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:p="http://www.springframework.org/schema/p"
        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-3.1.xsd    
                            http://www.springframework.org/schema/context    
                            http://www.springframework.org/schema/context/spring-context-3.1.xsd    
                            http://www.springframework.org/schema/mvc    
                            http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd">
        <!-- 自动扫描该包,使SpringMVC认为包下用了@controller注解的类是控制器 -->
        <context:component-scan base-package="com.rst.sagittarius.m8.controller" />
        <!--避免IE执行AJAX时,返回JSON出现下载文件 -->
        <bean id="mappingJacksonHttpMessageConverter"
            class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter">
            <property name="supportedMediaTypes">
                <list>
                    <value>text/html;charset=UTF-8</value>
                </list>
            </property>
        </bean>
        <!-- 启动SpringMVC的注解功能,完成请求和注解POJO的映射 -->
        <bean
            class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
            <property name="messageConverters">
                <list>
                    <ref bean="mappingJacksonHttpMessageConverter" /> <!-- JSON转换器 -->
                </list>
            </property>
        </bean>
        <!-- 定义跳转的文件的前后缀 ,视图模式配置 -->
        <bean
            class="org.springframework.web.servlet.view.InternalResourceViewResolver">
            <!-- 这里的配置我的理解是自动给后面action的方法return的字符串加上前缀和后缀,变成一个 可用的url地址 -->
            <property name="prefix" value="/WEB-INF/jsp/" />
            <property name="suffix" value=".jsp" />
        </bean>
    
        <!-- 配置文件上传,如果没有使用文件上传可以不用配置,当然如果不配,那么配置文件中也不必引入上传组件包 -->
        <bean id="multipartResolver"
            class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
            <!-- 默认编码 -->
            <property name="defaultEncoding" value="utf-8" />
            <!-- 文件大小最大值 -->
            <property name="maxUploadSize" value="10485760000" />
            <!-- 内存中的最大值 -->
            <property name="maxInMemorySize" value="40960" />
        </bean>
    
    </beans>  

    spring-mybatis.xml内容:

    <?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:p="http://www.springframework.org/schema/p"
        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-3.1.xsd    
                            http://www.springframework.org/schema/context    
                            http://www.springframework.org/schema/context/spring-context-3.1.xsd    
                            http://www.springframework.org/schema/mvc    
                            http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd">
        <!-- 自动扫描 -->
        <context:component-scan base-package="com.rst.libra.genubi" />
        <!-- 引入配置文件 -->
        <bean id="propertyConfigurer"
            class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
            <property name="location" value="classpath:jdbc.properties" />
        </bean>
        <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
            destroy-method="close">
            <property name="driverClassName" value="${driver}" />
            <property name="url" value="${url}" />
            <property name="username" value="${username}" />
            <property name="password" value="${password}" />
            <!-- 初始化连接大小 -->
            <property name="initialSize" value="${initialSize}"></property>
            <!-- 连接池最大数量 -->
            <property name="maxActive" value="${maxActive}"></property>
            <!-- 连接池最大空闲 -->
            <property name="maxIdle" value="${maxIdle}"></property>
            <!-- 连接池最小空闲 -->
            <property name="minIdle" value="${minIdle}"></property>
            <!-- 获取连接最大等待时间 -->
            <property name="maxWait" value="${maxWait}"></property>
        </bean>
        <!-- spring和MyBatis完美整合,不需要mybatis的配置映射文件 -->
        <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
            <property name="dataSource" ref="dataSource" />
            <!-- 自动扫描mapping.xml文件 -->
            <property name="mapperLocations" value="classpath:com/rst/libra/genubi/mapping/*.xml"></property>
        </bean>
        <!-- DAO接口所在包名,Spring会自动查找其下的类 -->
        <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
            <property name="basePackage" value="com.rst.libra.genubi.dao" />
            <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property>
        </bean>
        <!-- (事务管理)transaction manager, use JtaTransactionManager for global tx -->
        <bean id="transactionManager"
            class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
            <property name="dataSource" ref="dataSource" />
        </bean>
    </beans>

    maven插件Mybatis-generator反向生成数据表的POJO、mapping、DAO:

    mvn mybatis-generator:generate

    可生成上述文件。

    启动tomat,访问首页:localhost:8080/m8/user/showUser?id=1

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  • 原文地址:https://www.cnblogs.com/xuxy03/p/6005859.html
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