SSM整合之配置文件

1.pom.xml

<?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>com.nice</groupId> <artifactId>ssm</artifactId> <version>1.0-SNAPSHOT</version> <packaging>war</packaging> <dependencies> <!-- 引入Spring MVC,Spring--> <!-- https://mvnrepository.com/artifact/org.springframework/spring-webmvc --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>5.2.0.RELEASE</version> </dependency> <!-- https://mvnrepository.com/artifact/org.springframework/spring-jdbc --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jdbc</artifactId> <version>5.2.0.RELEASE</version> </dependency> <!-- https://mvnrepository.com/artifact/org.springframework/spring-aspects --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-aspects</artifactId> <version>5.2.0.RELEASE</version> </dependency> <!-- https://mvnrepository.com/artifact/org.springframework/spring-test --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-test</artifactId> <version>5.2.0.RELEASE</version> <scope>test</scope> </dependency> <!-- 返回json字符串--> <!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-databind --> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-databind</artifactId> <version>2.10.2</version> </dependency> <!-- JSR303数据校验 --> <!-- https://mvnrepository.com/artifact/org.hibernate/hibernate-validator --> <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-validator</artifactId> <version>6.1.0.Final</version> </dependency> <!--MyBatis--> <!-- https://mvnrepository.com/artifact/org.mybatis/mybatis --> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis</artifactId> <version>3.4.6</version> </dependency> <!-- https://mvnrepository.com/artifact/org.mybatis/mybatis-spring --> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis-spring</artifactId> <version>2.0.0</version> </dependency> <!--分页插件--> <dependency> <groupId>com.github.pagehelper</groupId> <artifactId>pagehelper</artifactId> <version>5.0.3</version> </dependency> <!-- 数据库连接池,驱动--> <!-- https://mvnrepository.com/artifact/com.mchange/c3p0 --> <dependency> <groupId>com.mchange</groupId> <artifactId>c3p0</artifactId> <version>0.9.5.2</version> </dependency> <!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java --> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.47</version> </dependency> <!--junit--> <!-- https://mvnrepository.com/artifact/junit/junit --> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.13</version> <scope>test</scope> </dependency> <!-- https://mvnrepository.com/artifact/org.apache.tomcat/tomcat-catalina --> <dependency> <groupId>org.apache.tomcat</groupId> <artifactId>tomcat-catalina</artifactId> <version>9.0.29</version> </dependency> <!-- MBG mybatis逆向工程--> <!-- https://mvnrepository.com/artifact/org.mybatis.generator/mybatis-generator-core --> <dependency> <groupId>org.mybatis.generator</groupId> <artifactId>mybatis-generator-core</artifactId> <version>1.4.0</version> </dependency> </dependencies> <!--构建插件--> <build> <finalName>shopping</finalName> <pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) --> <plugins> <plugin> <artifactId>maven-clean-plugin</artifactId> <version>3.1.0</version> </plugin> <!-- see http://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_war_packaging --> <plugin> <artifactId>maven-resources-plugin</artifactId> <version>3.0.2</version> </plugin> <plugin> <artifactId>maven-compiler-plugin</artifactId> <version>3.8.0</version> </plugin> <plugin> <artifactId>maven-surefire-plugin</artifactId> <version>2.22.1</version> </plugin> <plugin> <artifactId>maven-war-plugin</artifactId> <version>3.2.2</version> </plugin> <plugin> <artifactId>maven-install-plugin</artifactId> <version>2.5.2</version> </plugin> <plugin> <artifactId>maven-deploy-plugin</artifactId> <version>2.8.2</version> </plugin> </plugins> </pluginManagement> </build> </project>

2.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"> <!-- 1.启动Spring的容器--> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:application.xml</param-value> </context-param> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <!-- 2.SpringMVC的前端控制器--> <servlet> <servlet-name>springDispatcherServlet</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:SpringMVC.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>springDispatcherServlet</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> <!--3.字符编码过滤器--> <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--> <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> <!-- 这个过滤器可以使用ajax直接发送put请求--> <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> </web-app>

3.db.properties

jdbc.username=账号 jdbc.password=密码 jdbc.url=jdbc:mysql://localhost:3306/数据库名?useSSL=false&characterEncoding=utf8 jdbc.driver=com.mysql.jdbc.Driver

4.SpringMVC.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/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/mvc https://www.springframework.org/schema/mvc/spring-mvc.xsd http://www.springframework.org/schema/context https://www.springframework.org/schema/context/spring-context.xsd"> <!-- 扫描包--> <context:component-scan base-package="com.nice" use-default-filters="false"> <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/> </context:component-scan> <!-- 视图解析器--> <bean name="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value="/WEB-INF/view/"></property> <property name="suffix" value=".jsp"></property> </bean> <!-- 访问静态资源--> <mvc:default-servlet-handler></mvc:default-servlet-handler> <mvc:annotation-driven></mvc:annotation-driven> </beans>

5.application.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:tx="http://www.springframework.org/schema/tx" xmlns:mybatis="http://www.springframework.org/schema/context" xmlns:mybatis-spring="http://mybatis.org/schema/mybatis-spring" xmlns:aop="http://www.springframework.org/schema/aop" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context https://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/tool http://www.springframework.org/schema/tool/spring-tool.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd http://mybatis.org/schema/mybatis-spring http://mybatis.org/schema/mybatis-spring.xsd http://www.springframework.org/schema/aop https://www.springframework.org/schema/aop/spring-aop.xsd"> <!--扫描包--> <context:component-scan base-package="com.nice"> <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/> </context:component-scan> <!-- 配置数据源 --> <context:property-placeholder location="classpath:db.properties"></context:property-placeholder> <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"> <property name="user" value="${jdbc.username}"></property> <property name="password" value="${jdbc.password}"></property> <property name="jdbcUrl" value="${jdbc.url}"></property> <property name="driverClass" value="${jdbc.driver}"></property> </bean> <!-- 事务管理器--> <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="dataSource"></property> </bean> <!-- 启动注解事务--> <tx:annotation-driven transaction-manager="transactionManager"></tx:annotation-driven> <!-- 基于配置式的事务--> <aop:config> <!-- 切入点--> <aop:pointcut id="txPoint" expression="execution(* com.nice.service..*(..))"/> <aop:advisor advice-ref="txAdvice" pointcut-ref="txPoint"></aop:advisor> </aop:config> <!-- 配置事务增强--> <tx:advice id="txAdvice" transaction-manager="transactionManager"> <tx:attributes> <tx:method name="*"/> <tx:method name="get*" read-only="true"></tx:method> </tx:attributes> </tx:advice> <!--整合mybatis--> <bean id="sessionFactoryBean" class="org.mybatis.spring.SqlSessionFactoryBean"> <property name="dataSource" ref="dataSource"></property> <property name="configLocation" value="classpath:mybatis/mybatis-config.xml"></property> <property name="mapperLocations" value="classpath:mybatis/mapper/*.xml"></property> </bean> <!-- 批量执行--> <bean id="sqlSessionTemplate" class="org.mybatis.spring.SqlSessionTemplate"> <constructor-arg name="sqlSessionFactory" ref="sessionFactoryBean"></constructor-arg> <constructor-arg name="executorType" value="BATCH"></constructor-arg> </bean> <!-- 扫描所有的mapper接口的实现，让这些mapper能够自动注入； base-package：指定mapper接口的包名 --> <!-- <mybatis-spring:scan base-package="com.nice.dao"></mybatis-spring:scan>--> <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <property name="basePackage" value="com.nice.dao"></property> </bean> </beans>

6.MyBatis全局配置文件 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.nice.bean"/> </typeAliases> <plugins> <plugin interceptor="com.github.pagehelper.PageInterceptor"> <property name="reasonable" value="true"/> </plugin> </plugins> </configuration>

7.MBG.xml(mybatis逆向工程,自动生成javaBean,Mapper接口,Mapper配置文件)

<?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"> <!--生成--> <generatorConfiguration> <context id="DB2Tables" targetRuntime="MyBatis3"> <!-- 生成的工程中没有注释 简洁一点--> <commentGenerator> <property name="suppressAllComments" value="true"/> </commentGenerator> <jdbcConnection driverClass="com.mysql.jdbc.Driver" connectionURL="jdbc:mysql://localhost:3306/ssm_crud?useSSL=false" userId="root" password="****"> </jdbcConnection> <javaTypeResolver> <property name="forceBigDecimals" value="false"/> </javaTypeResolver> <!-- 指定javaBean生成的位置--> <javaModelGenerator targetPackage="com.nice.bean" targetProject=".\src\main\java"> <property name="enableSubPackages" value="true"/> <property name="trimStrings" value="true"/> </javaModelGenerator> <!--指定sql映射文件的位置--> <sqlMapGenerator targetPackage="mybatis.mapper" targetProject=".\src\main\resources"> <property name="enableSubPackages" value="true"/> </sqlMapGenerator> <!--mapper接口生成的位置--> <javaClientGenerator type="XMLMAPPER" targetPackage="com.nice.dao" targetProject=".\src\main\java"> <property name="enableSubPackages" value="true"/> </javaClientGenerator> <table tableName="employee" domainObjectName="Employee"></table> <table tableName="department" domainObjectName="Department"></table> </context> </generatorConfiguration>

8.MBG的运行代码

public class MBGTest { @Test public void test() 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); } }

9.Spring单元测试(模拟请求)

@WebAppConfiguration //@Autowired只能获取ioc容器里面的 需要获取ioc容器就要加@WebAppConfiguration @RunWith(SpringJUnit4ClassRunner.class) @ContextConfiguration(locations = {"classpath:application.xml","classpath:SpringMVC.xml"}) public class PageInfoTest { @Autowired //加入SpringMvc的ioc WebApplicationContext webApplicationContext; MockMvc mockMvc; //虚拟请求 @Before public void initMockMvc(){ mockMvc = MockMvcBuilders.webAppContextSetup(webApplicationContext).build(); } @Test public void test() throws Exception { MvcResult result = mockMvc.perform(MockMvcRequestBuilders.get("/emps").param("pa", "5")).andReturn(); PageInfo page = (PageInfo) result.getRequest().getAttribute("pageInfo"); System.out.println("第" + page.getPageNum() + "页"); System.out.println("共" + page.getPages() + "页"); int[] nums = page.getNavigatepageNums(); System.out.println(Arrays.toString(nums)); List<Employee> pageList = page.getList(); for (Employee employee : pageList){ System.out.println(employee); } } }