iwehdio的博客园：https://www.cnblogs.com/iwehdio/
1、Spring
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整合方式：用Spring去整合其他的框架，XML + 注解。
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maven坐标：
<?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>ssm_zhenghe</artifactId> <version>1.0-SNAPSHOT</version> <packaging>war</packaging> <name>ssm_zhenghe Maven Webapp</name> <!-- FIXME change it to the project's website --> <url>http://www.example.com</url> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <maven.compiler.source>1.8</maven.compiler.source> <maven.compiler.target>1.8</maven.compiler.target> <spring.version>5.0.2.RELEASE</spring.version> <slf4j.version>1.6.6</slf4j.version> <log4j.version>1.2.12</log4j.version> <mysql.version>5.1.6</mysql.version> <mybatis.version>3.4.5</mybatis.version> </properties> <dependencies> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.11</version> <scope>test</scope> </dependency> <!-- spring --> <dependency> <groupId>org.aspectj</groupId> <artifactId>aspectjweaver</artifactId> <version>1.6.8</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-aop</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-web</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-test</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>${spring.version}</version> </dependency> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.12</version> <scope>test</scope> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>${mysql.version}</version> </dependency> <dependency> <groupId>javax.servlet</groupId> <artifactId>servlet-api</artifactId> <version>2.5</version> <scope>provided</scope> </dependency> <dependency> <groupId>javax.servlet.jsp</groupId> <artifactId>jsp-api</artifactId> <version>2.0</version> <scope>provided</scope> </dependency> <dependency> <groupId>jstl</groupId> <artifactId>jstl</artifactId> <version>1.2</version> </dependency> <!-- log start --> <dependency> <groupId>log4j</groupId> <artifactId>log4j</artifactId> <version>${log4j.version}</version> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-api</artifactId> <version>${slf4j.version}</version> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-log4j12</artifactId> <version>${slf4j.version}</version> </dependency> <!-- log end --> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis</artifactId> <version>${mybatis.version}</version> </dependency> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis-spring</artifactId> <version>1.3.0</version> </dependency> <dependency> <groupId>c3p0</groupId> <artifactId>c3p0</artifactId> <version>0.9.1.2</version> <type>jar</type> <scope>compile</scope> </dependency> </dependencies> <build> <finalName>ssm_zhenghe</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> -
搭建基础环境：
- domin包及实体类。
- dao包及接口。
- service包及接口和实现类。
- controller包及控制器。
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搭建Spring框架：
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创建applicationContext.xml，并配置约束：
<?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/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/aop http://www.springframework.org/schema/aop/spring-aop.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd"> </beans> -
配置扫描注解的包：
<!-- Spring注解只扫dao和service --> <context:component-scan base-package="cn.iwehdio"> <!-- 那些注解不扫描 --> <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/> </context:component-scan> -
在AccountServiceImpl类上加注解
@Service("accountService")。 -
测试Spring：
@Test public void test1() { ApplicationContext ac = new ClassPathXmlApplicationContext("classpath:applicationContext.xml"); AccountService as = (AccountService) ac.getBean("accountService"); as.findAll(); }
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2、SpringMVC
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搭建SpringMVC框架：
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web.xml下配置前端控制器：
<servlet> <servlet-name>dispatcherServlet</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>dispatcherServlet</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> <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> </filter> <filter-mapping> <filter-name>characterEncodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> -
创建springmvc.xml，并配置约束：
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:context="http://www.springframework.org/schema/context" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd"> </beans> -
配置：
<!-- 开启注解扫描，只扫描controll --> <context:component-scan base-package="cn.iwehdio"> <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/> </context:component-scan> <!-- 配置视图解析器 --> <bean id="internalResourceViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value="/WEB-INF/pages/"></property> <property name="suffix" value=".jsp"></property> </bean> <!-- 过滤静态资源 --> <mvc:resources location="/css/" mapping="/css/**" /> <mvc:resources location="/images/" mapping="/images/**" /> <mvc:resources location="/js/" mapping="/js/**" /> <!-- 开启SpringMVC注解支持 --> <mvc:annotation-driven></mvc:annotation-driven> -
配置控制器：
@Controller @RequestMapping("/account") public class AccountController { @RequestMapping("findAll") public String findAll(){ System.out.println("表现层查询所有"); return "list"; } } -
编写index.jsp和list.jsp。
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Spring整合SpringMVC：
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启动Tomcat时，自动加载了springmvc.xml，但还需要加载applicationContext.xml文件。
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ServletContext生命周期与服务器相同。
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有一类监听器，监听ServletContext的创建和销毁。
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用这个监听器加载Spring的配置文件applicationContext.xml。
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配置监听器，监听器会默认加载WEB-INF目录下的applicationContext.xml文件，因此还需要配置路径到类路径下。（resources路径编译后在类路径下）
<listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:applicationContext.xml</param-value> </context-param> -
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在控制器中注入：
@Autowired private AccountService accountService;
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3、Mybatis
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搭建Mybatis框架：
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创建SqlMapConfig.xml，配置约束：
<?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"> -
配置：
<configuration> <!-- 配置环境 --> <environments default="mysql"> <environment id="mysql"> <transactionManager type="JDBC"></transactionManager> <dataSource type="POOLED"> <property name="driver" value="com.mysql.jdbc.Driver"/> <property name="url" value="jdbc:mysql://localhost:3306/ssm"/> <property name="username" value="root"/> <property name="password" value="root"/> </dataSource> </environment> </environments> <!-- 映射配置文件 --> <mappers> <mapper class="cn.iwehdio.dao.AccountDao"></mapper> <!-- 或扫描包下的所有接口 <package name="cn.iwehdio.dao"/>--> </mappers> </configuration> -
在dao接口上用注解配置SQL语句：
@Select("select * from account") public List<Account> findAll(); @Select("insert into account (name,money) values (#{name},#{money})") public void saveAccount(Account account); -
测试（增删改需要commit）：
public class testMybatis { @Test public void test() throws IOException { //加载配置文件 InputStream in = Resources.getResourceAsStream("SqlMapConfig.xml"); //创建SqlSessionFactory对象 SqlSessionFactory factory = new SqlSessionFactoryBuilder().build(in); //创建SqlSession SqlSession sqlSession = factory.openSession(); //获取代理对象 AccountDao mapper = sqlSession.getMapper(AccountDao.class); //进行查询 List<Account> all = mapper.findAll(); for (Account a : all) { System.out.println(a.getName()); } //释放资源 sqlSession.close(); in.close(); } }
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Spring整合Mybatis：
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applicationConfigContext.xml下配置Mybatis：
<!-- 整合Mybatis --> <!-- 配置连接池 --> <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"> <property name="driverClass" value="com.mysql.jdbc.Driver"/> <property name="jdbcUrl" value="jdbc:mysql://localhost:3306/ssm"/> <property name="user" value="root"/> <property name="password" value="root"/> </bean> <!-- 配置工厂对象 --> <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <property name="dataSource" ref="dataSource"></property> </bean> <!-- 配置接口所在的包 --> <bean id="mapperScannerConfigurer" class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <property name="basePackage" value="cn.iwehdio.dao"></property> </bean> -
可以去掉SqlMapConfig.xml。
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在AccountDao接口上加
@Repository注解。 -
在AccountServiceImpl中注入：
@Service("accountService") public class AccountServiceImpl implements AccountService { @Autowired private AccountDao accountDao; @Override public List<Account> findAll() { System.out.println("业务层findall"); return accountDao.findAll(); } @Override public void saveAccount(Account account) { System.out.println("业务层save"); accountDao.saveAccount(account); } } -
控制器查询并跳转：
@RequestMapping("findAll") public String findAll(Model model){ System.out.println("表现层查询所有"); List<Account> all = accountService.findAll(); model.addAttribute("list", all); return "list"; } -
前端显示：
<%@ page contentType="text/html;charset=UTF-8" language="java" isELIgnored="false" %> <%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %> <html> <head> <title>Title</title> </head> <body> <h3>findAll</h3> <c:forEach items="${list}" var="account"> ${account.name} </c:forEach> </body> </html>
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整合声明式事务管理：
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applicationConfigContext.xml下配置事务管理：
<!-- 配置事务管理器 --> <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="dataSource"></property> </bean> <!-- 配置事务通知 --> <tx:advice id="txAdvice" transaction-manager="transactionManager"> <tx:attributes> <tx:method name="find*" read-only="true"/> <tx:method name="*" isolation="DEFAULT"/> </tx:attributes> </tx:advice> <!-- 配置AOP增强 --> <aop:config> <aop:advisor advice-ref="txAdvice" pointcut="execution(* cn.iwehdio.service.Impl.*ServiceImpl.*(..))"></aop:advisor> </aop:config> -
控制器保存账户：
@RequestMapping("save") public void save(Account account, HttpServletRequest request, HttpServletResponse response) throws IOException { accountService.saveAccount(account); response.sendRedirect(request.getContextPath()+"/account/findAll"); return; }
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