IDEA ssm整合注解版
新建一个Maven Web项目springSSM
一:配置Spring环境
<!--版本锁定-->
<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>
<!-- 导坐标 -->
<dependencies>
<!-- 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>${spring.version}</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>${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>
1.配置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/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">
<!--开启注解扫描 希望处理service和dao, controller不需要spring框架去处理-->
<context:component-scan base-package="com.znsd">
<!--配置哪些注解不扫描-->
<context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
</context:component-scan>
</beans>
2.测试,spring环境搭建成功
@Test
public void springTest(){
//加载配置文件
ApplicationContext ac = new ClassPathXmlApplicationContext("classpath:applicationContext.xml");
//获取对象
AccountService as = (AccountService)ac.getBean("accountService");
//调用方法
as.findAll();
}
二:springmvc环境搭建
1.配置web.xml
<!DOCTYPE web-app PUBLIC
"-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd" >
<web-app>
<display-name>Archetype Created Web Application</display-name>
<!--配置前端控制器-->
<servlet>
<servlet-name>dispatcherServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<!--加载springmvc.xml配置文件-->
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:springmvc.xml</param-value>
</init-param>
<!--启动服务器,创建该servlet-->
</servlet>
<servlet-mapping>
<servlet-name>dispatcherServlet</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<!--解决中文乱码过滤器-->
<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>
</filter>
<filter-mapping>
<filter-name>characterEncodingFilter</filter-name>
<url-pattern>/*
2.配置springmvc.xml
<?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">
<!--1.开启注解扫描,只扫描Controller注解-->
<context:component-scan base-package="com.znsd">
<context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
</context:component-scan>
<!--2.配置视图解析器对象-->
<bean id="internalResourceViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/pages/"/>
<property name="suffix" value=".jsp"/>
</bean>
<!--3.过滤静态资源-->
<mvc:resources location="/css/" mapping="/css/**" />
<mvc:resources location="/images/" mapping="/images/**" />
<mvc:resources location="/js/" mapping="/js/**" />
<!--4.开启springMVC注解的支持-->
<mvc:annotation-driven/>
</beans>
3.测试环境搭建是否成功
3.1新建index.jsp
<a href="account/findAll">springmvc测试</a>
3.2 Controller
@Controller
@RequestMapping("/account")
public class AccountController {
@RequestMapping("/findAll")
public String findAll(){
System.out.println("表现层查询所有的账户信息...");
return "list";
}
}
3.3 webapp–>WEB-INF新建文件夹pages–>新建list.jsp测试是否成功
四:spring整合springmvc
1.spring整合springmvc(如果Controller层调用Service层成功则说明整合成功)
整合原理:spring整合springmvc: 启动Tomcat的时候,需要家长spring的配置文件,完成依赖注入
ServletContext域对象–>服务器启动的时候创建ServletContext域对象,服务器关闭才销毁–>监听器去加载spring的配置文件,创建web版本工厂,存储ServletContext对象
2.在web.xml配置
<!--配置spring的监听器,默认只加载WEB-INF目录下的applicationContext.xml配置文件-->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!--设置配置文件路径-->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:applicationContext.xml</param-value>
</context-param>
3.测试是否整合成功
主要看Controller层调用Service层是否执行成功
@Controller
@RequestMapping("/account")
public class AccountController {
@Autowired
private AccountService accountService;
@RequestMapping("/findAll")
public String findAll(){
System.out.println("表现层查询所有的账户信息...");
//调用service的方法,如果能调用成功则表示整合成功
accountService.findAll();
return "list";
}
}
五:搭建mybati环境
1.编写dao层
@Select("select * from account")
List<Account> findAll();
2.创建Mybatis主配置文件SqlMapConfig.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>
<!--1.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://112.74.50.172:3306/ssm"/>
<property name="username" value="root"/>
<property name="password" value="root"/>
</dataSource>
</environment>
</environments>
<!--2.引入映射配置文件-->
<mappers>
<package name="com.znsd.dao"/>
</mappers>
</configuration>
3.测试Mybatis环境是否搭建成功
@Test
public void testMybatis() throws IOException {
//1.加载配置文件
InputStream is = Resources.getResourceAsStream("SqlMapConfig.xml");
//2.创建SqlSessionFactory对象
SqlSessionFactory factory = new SqlSessionFactoryBuilder().build(is);
//3.创建SqlSession对象
SqlSession sqlSession = factory.openSession();
//4.获取代理对象
AccountDao dao = sqlSession.getMapper(AccountDao.class);
//5.查询所有方法
List<Account> accounts = dao.findAll();
System.out.println(accounts);
//6.关闭资源
sqlSession.close();
is.close();
}
六:spring整合mybati
1.在spring主配置文件applicationContext.xml 加上, 删除SqlMapConfig.xml
<!--spring整合mybatis框架-->
<!--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://112.74.50.172:3306/ssm"/>
<property name="user" value="root"/>
<property name="password" value="root"/>
</bean>
<!--配置SqlSessionFactory工厂-->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource"/>
</bean>
<!--配置AccountDao接口所在的包-->
<bean id="mapperScanner" class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.znsd.dao"/>
</bean>
2.dao接口上加上@Repository注解
3.Controller类上加上注入–>Controller调用Service–>调用dao–>daoImpl完成整合
@Autowired
private AccountDao accountDao;
4.现在只有查询方法用得了,添加数据的话还需要在applicationContext.xml配置事务
<!--配置spring框架声明式事务管理-->
<!--1.配置事务管理器-->
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"/>
</bean>
<!--2.配置事务通知-->
<tx:advice id="txAdvice" transaction-manager="transactionManager">
<tx:attributes>
<!--find*:表示以find方法开头的 read-only="true":表示只读的 isolation:设置隔离级别-->
<tx:method name="find*" read-only="true"/>
<tx:method name="*" isolation="DEFAULT"/>
</tx:attributes>
</tx:advice>
<!--3.配置AOP增强-->
<aop:config>
<aop:advisor advice-ref="txAdvice" pointcut="execution(* com.znsd.service.impl.*ServiceImpl.*(..))"/>
</aop:config>
4.测试是否整合成功
4.1 index.jsp
<form action="account/save" method="post">
姓名:<input type="text" value="name"/><br>
金额:<input type="text" value="money"/><br>
<input type="submit" value="提交"><br>
</form>
4.2 Controller层
@RequestMapping("/save")
public void save(Account account, HttpServletResponse response, HttpServletRequest request) throws IOException {
accountService.saveAccount(account);
response.sendRedirect(request.getContextPath()+"account/findAll");//页面重定向
//return "list"; //页面转发
return;
}
4.3解决增加数据时中文乱码的问题
1.tomcat 的server.xml 配置
2.mysql配置文件加一个 characterEncoding=UTF-8
<property name="jdbcUrl" value="jdbc:mysql://112.74.50.172:3306/ssm?characterEncoding=UTF-8"/>
3.创建数据库表时字符集选utf-8