mavenSSM整合实现HelloWorld

第一次写博客，若有不对多多见谅
Spring+SpringMVC+MyBatis整合只有我自己能看懂版1.0
环境准备：
eclipse+jdk1.8+tomcat7.0
第一步：创建maven工程，加入dynamic web module2.5,目录结构如下
第二步：加入需要的依赖，pom.xml

<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.atguigu</groupId>    <artifactId>ssm-crud</artifactId>    <version>0.0.1-SNAPSHOT</version>    <packaging>war</packaging>    <!--引入项目依赖的jar包 -->    <!-- SpringMVC、Spring -->    <!-- https://mvnrepository.com/artifact/org.springframework/spring-webmvc -->    <dependencies>        <!--引入pageHelper分页插件 -->        <dependency>            <groupId>com.github.pagehelper</groupId>            <artifactId>pagehelper</artifactId>            <version>5.0.0</version>        </dependency>        <!-- MBG -->        <!-- https://mvnrepository.com/artifact/org.mybatis.generator/mybatis-generator-core -->        <dependency>            <groupId>org.mybatis.generator</groupId>            <artifactId>mybatis-generator-core</artifactId>            <version>1.3.5</version>        </dependency>        <dependency>            <groupId>org.springframework</groupId>            <artifactId>spring-webmvc</artifactId>            <version>4.3.7.RELEASE</version>        </dependency>        <!-- 返回json字符串的支持 -->        <!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-databind -->        <dependency>            <groupId>com.fasterxml.jackson.core</groupId>            <artifactId>jackson-databind</artifactId>            <version>2.8.8</version>        </dependency>        <!--JSR303数据校验支持；tomcat7及以上的服务器， tomcat7以下的服务器：el表达式。额外给服务器的lib包中替换新的标准的el -->        <!-- https://mvnrepository.com/artifact/org.hibernate/hibernate-validator -->        <dependency>            <groupId>org.hibernate</groupId>            <artifactId>hibernate-validator</artifactId>            <version>5.4.1.Final</version>        </dependency>        <!-- Spring-Jdbc -->        <!-- https://mvnrepository.com/artifact/org.springframework/spring-jdbc -->        <dependency>            <groupId>org.springframework</groupId>            <artifactId>spring-jdbc</artifactId>            <version>4.3.7.RELEASE</version>        </dependency>        <!--Spring-test -->        <!-- https://mvnrepository.com/artifact/org.springframework/spring-test -->        <dependency>            <groupId>org.springframework</groupId>            <artifactId>spring-test</artifactId>            <version>4.3.7.RELEASE</version>        </dependency>        <!-- Spring面向切面编程 -->        <!-- https://mvnrepository.com/artifact/org.springframework/spring-aspects -->        <dependency>            <groupId>org.springframework</groupId>            <artifactId>spring-aspects</artifactId>            <version>4.3.7.RELEASE</version>        </dependency>        <!--MyBatis -->        <!-- https://mvnrepository.com/artifact/org.mybatis/mybatis -->        <dependency>            <groupId>org.mybatis</groupId>            <artifactId>mybatis</artifactId>            <version>3.4.2</version>        </dependency>        <!-- MyBatis整合Spring的适配包 -->        <!-- https://mvnrepository.com/artifact/org.mybatis/mybatis-spring -->        <dependency>            <groupId>org.mybatis</groupId>            <artifactId>mybatis-spring</artifactId>            <version>1.3.1</version>        </dependency>        <!-- 数据库连接池、驱动 -->        <!-- https://mvnrepository.com/artifact/c3p0/c3p0 -->        <dependency>            <groupId>c3p0</groupId>            <artifactId>c3p0</artifactId>            <version>0.9.1</version>        </dependency>        <!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java -->        <dependency>            <groupId>mysql</groupId>            <artifactId>mysql-connector-java</artifactId>            <version>5.1.41</version>        </dependency>        <!-- （jstl，servlet-api，junit） -->        <!-- https://mvnrepository.com/artifact/jstl/jstl -->        <dependency>            <groupId>jstl</groupId>            <artifactId>jstl</artifactId>            <version>1.2</version>        </dependency>        <!-- https://mvnrepository.com/artifact/javax.servlet/javax.servlet-api -->        <dependency>            <groupId>javax.servlet</groupId>            <artifactId>javax.servlet-api</artifactId>            <version>3.0.1</version>            <scope>provided</scope>        </dependency>        <!-- junit -->        <!-- https://mvnrepository.com/artifact/junit/junit -->        <dependency>            <groupId>junit</groupId>            <artifactId>junit</artifactId>            <version>4.12</version>        </dependency>    </dependencies></project>

第三步：编写web.xml
如下：`


contextConfigLocation
classpath:applicationContext.xml

<!-- Bootstraps the root web application context before servlet initialization --><listener>    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class></listener><!--2、springmvc的前端控制器，拦截所有请求  --><!-- The front controller of this Spring Web application, responsible for handling all application requests --><servlet>    <servlet-name>dispatcherServlet</servlet-name>    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>    <load-on-startup>1</load-on-startup></servlet><!-- Map all requests to the DispatcherServlet for handling --><servlet-mapping>    <servlet-name>dispatcherServlet</servlet-name>    <url-pattern>/</url-pattern></servlet-mapping><!-- 3、字符编码过滤器，一定要放在所有过滤器之前 --><filter>    <filter-name>CharacterEncodingFilter</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>    <init-param>        <param-name>forceRequestEncoding</param-name>        <param-value>true</param-value>    </init-param>    <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><!-- 4、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 --><filter>    <filter-name>HiddenHttpMethodFilter</filter-name>    <filter-class>org.springframework.web.filter.HiddenHttpMethodFilter</filter-class></filter><filter-mapping>    <filter-name>HiddenHttpMethodFilter</filter-name>    <url-pattern>/*</url-pattern></filter-mapping><filter>    <filter-name>HttpPutFormContentFilter</filter-name>    <filter-class>org.springframework.web.filter.HttpPutFormContentFilter</filter-class></filter><filter-mapping>    <filter-name>HttpPutFormContentFilter</filter-name>    <url-pattern>/*</url-pattern></filter-mapping>`

第四步：编写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"    xsi:schemaLocation="http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.3.xsd        http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd        http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.3.xsd        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd">    <context:component-scan base-package="com.atguigu">        <context:exclude-filter type="annotation"            expression="org.springframework.stereotype.Controller" />    </context:component-scan>    <!-- Spring的配置文件，这里主要配置和业务逻辑有关的 -->    <!--=================== 数据源，事务控制，xxx ================-->    <context:property-placeholder location="classpath:dbconfig.properties" />    <bean id="pooledDataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">        <property name="jdbcUrl" value="${jdbc.jdbcUrl}"></property>        <property name="driverClass" value="${jdbc.driverClass}"></property>        <property name="user" value="${jdbc.user}"></property>        <property name="password" value="${jdbc.password}"></property>    </bean>    <!--================== 配置和MyBatis的整合=============== -->    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">        <!-- 指定mybatis全局配置文件的位置 -->        <property name="configLocation" value="classpath:mybatis-config.xml"></property>        <property name="dataSource" ref="pooledDataSource"></property>        <!-- 指定mybatis，mapper文件的位置 -->        <property name="mapperLocations" value="classpath:mapper/*.xml"></property>    </bean>    <!-- 配置扫描器，将mybatis接口的实现加入到ioc容器中 -->    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">        <!--扫描所有dao接口的实现，加入到ioc容器中 -->        <property name="basePackage" value="com.atguigu.crud.dao"></property>    </bean>    <!-- 配置一个可以执行批量的sqlSession -->    <bean id="sqlSession" class="org.mybatis.spring.SqlSessionTemplate">        <constructor-arg name="sqlSessionFactory" ref="sqlSessionFactory"></constructor-arg>        <constructor-arg name="executorType" value="BATCH"></constructor-arg>    </bean>    <!--=============================================  -->    <!-- ===============事务控制的配置 ================-->    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">        <!--控制住数据源  -->        <property name="dataSource" ref="pooledDataSource"></property>    </bean>    <!--开启基于注解的事务，使用xml配置形式的事务（必要主要的都是使用配置式）  -->    <aop:config>        <!-- 切入点表达式 -->        <aop:pointcut expression="execution(* com.atguigu.crud.service..*(..))" id="txPoint"/>        <!-- 配置事务增强 -->        <aop:advisor advice-ref="txAdvice" pointcut-ref="txPoint"/>    </aop:config>    <!--配置事务增强，事务如何切入  -->    <tx:advice id="txAdvice" transaction-manager="transactionManager">        <tx:attributes>            <!-- 所有方法都是事务方法 -->            <tx:method name="*"/>            <!--以get开始的所有方法  -->            <tx:method name="get*" read-only="true"/>        </tx:attributes>    </tx:advice>    <!-- Spring配置文件的核心点（数据源、与mybatis的整合，事务控制） --></beans>

编写dispatcherServlet.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:mvc="http://www.springframework.org/schema/mvc"    xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.3.xsd        http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd">    <!--SpringMVC的配置文件，包含网站跳转逻辑的控制，配置  -->    <context:component-scan base-package="com.atguigu" use-default-filters="false">        <!--只扫描控制器。  -->        <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>    </context:component-scan>    <!--配置视图解析器，方便页面返回  -->    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">        <property name="prefix" value="/WEB-INF/views/"></property>        <property name="suffix" value=".jsp"></property>    </bean>    <!--两个标准配置  -->    <!-- 将springmvc不能处理的请求交给tomcat -->    <mvc:default-servlet-handler/>    <!-- 能支持springmvc更高级的一些功能，JSR303校验，快捷的ajax...映射动态请求 -->    <mvc:annotation-driven/></beans>

mybatis-config.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="mapUnderscoreToCamelCase" value="true"/>    </settings>    <typeAliases>        <package name="com.atguigu.crud.bean"/>    </typeAliases>    <plugins>        <plugin interceptor="com.github.pagehelper.PageInterceptor">            <!--分页参数合理化  -->            <property name="reasonable" value="true"/>        </plugin>    </plugins></configuration>

dbfig.properties:

jdbc.jdbcUrl=jdbc:mysql://localhost:3306/ssm_crudjdbc.driverClass=com.mysql.jdbc.Driverjdbc.user=rootjdbc.password=123456

MBG.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"><generatorConfiguration>    <context id="DB2Tables" targetRuntime="MyBatis3">        <commentGenerator>            <property name="suppressAllComments" value="true" />        </commentGenerator>        <!-- 配置数据库连接 -->        <jdbcConnection driverClass="com.mysql.jdbc.Driver"            connectionURL="jdbc:mysql://localhost:3306/ssm_crud" userId="root"            password="123456">        </jdbcConnection>        <javaTypeResolver>            <property name="forceBigDecimals" value="false" />        </javaTypeResolver>        <!-- 指定javaBean生成的位置 -->        <javaModelGenerator targetPackage="com.atguigu.crud.bean"            targetProject=".\src\main\java">            <property name="enableSubPackages" value="true" />            <property name="trimStrings" value="true" />        </javaModelGenerator>        <!--指定sql映射文件生成的位置 -->        <sqlMapGenerator targetPackage="mapper" targetProject=".\src\main\resources">            <property name="enableSubPackages" value="true" />        </sqlMapGenerator>        <!-- 指定dao接口生成的位置，mapper接口 -->        <javaClientGenerator type="XMLMAPPER"            targetPackage="com.atguigu.crud.dao" targetProject=".\src\main\java">            <property name="enableSubPackages" value="true" />        </javaClientGenerator>        <!-- table指定每个表的生成策略 -->        <table tableName="tbl_emp" domainObjectName="Employee"></table>        <table tableName="tbl_dept" domainObjectName="Department"></table>    </context></generatorConfiguration>

MBG.test

    public static void main(String[] args) throws Exception {        List<String> warnings = new ArrayList<String>();        boolean overwrite = true;        File configFile = new File("mbg.xml");        ConfigurationParser cp = new ConfigurationParser(warnings);        Configuration config = cp.parseConfiguration(configFile);        DefaultShellCallback callback = new DefaultShellCallback(overwrite);        MyBatisGenerator myBatisGenerator = new MyBatisGenerator(config,                callback, warnings);        myBatisGenerator.generate(null);    }