1.使用maven导入配置SSM框架所需的jar包,在项目的pom.xml文件中加入
<!--添加spring的依赖-->
<dependency>
<artifactId>spring-beans</artifactId>
<groupId>org.springframework</groupId>
<version>${spring.version}</version>
</dependency>
<dependency>
<artifactId>spring-context</artifactId>
<groupId>org.springframework</groupId>
<version>${spring.version}</version>
</dependency>
<dependency>
<artifactId>spring-tx</artifactId>
<groupId>org.springframework</groupId>
<version>${spring.version}</version>
</dependency>
<!-- 添加spring/springMVC的依赖 开始-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</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-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-context-support</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-expression</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</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>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aspects</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- 添加spring/springMVC的依赖 结束-->
<!-- 添加mybatis-spring的整合依赖-->
<!-- https://mvnrepository.com/artifact/org.mybatis/mybatis-spring -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>${mybatis-spring.version}</version>
</dependency>
<dependency>
<groupId>org.mybatis.generator</groupId>
<artifactId>mybatis-generator-core</artifactId>
<version>1.3.6</version>
</dependency>
2.配置spring所需的applicationContext.xml,springmvc.xnl,在这个项目里不需要对mybatis单独进行配置
<?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-4.3.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-4.3.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-4.3.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-4.3.xsd">
<context:component-scan base-package="com.data">
<context:include-filter type="annotation"
expression="org.springframework.stereotype.Component" />
<context:include-filter type="annotation"
expression="org.springframework.stereotype.Repository" />
<context:include-filter type="annotation"
expression="org.springframework.stereotype.Service" />
</context:component-scan>
<!-- 加载配数据源配置文件 db.properties -->
<!--<context:property-placeholder location="db.properties"/>-->
<!-- 配置 C3P0 数据源 -->
<!-- 配置数据源 -->
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
<property name="driverClass" value="com.mysql.cj.jdbc.Driver"/>
<property name="jdbcUrl" value="jdbc:mysql://127.0.0.1:3306/dataUp?useSSL=false&useAffectedRows=true&serverTimezone=UTC "/>
<property name="user" value="root"/>
<property name="password" value="root"/>
<property name="maxPoolSize" value="30"/>
<property name="minPoolSize" value="2"/>
</bean>
<!-- 事务管理器 (JDBC) -->
<bean id="transactionManager"
class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"/>
</bean>
<!-- 6.开启事务注解-->
<tx:annotation-driven/>
<!-- spring 通过 sqlSessionFactoryBean 获取 sqlSessionFactory 工厂类 -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource"/>
<!-- 扫描 po 包,使用别名 -->
<property name="typeAliasesPackage" value="com.data.model"/>
<!-- 扫描映射文件 -->
<property name="mapperLocations" value="classpath:mybatis/mapper/*Mapper.xml"/>
</bean>
<!-- 自动生成dao,mapper-->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="classpath:mybatis/mapper"/>
<property name="sqlSessionFactoryBeanName" value="sqlSessionFactoryBean"/>
</bean>
<!-- 配置扫描 dao 包,动态实现 dao 接口,注入到 spring 容器中 -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.data.dao" />
<!-- 注意使用 sqlSessionFactoryBeanName 避免出现spring 扫描组件失效问题 -->
<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory" />
</bean>
</beans>
<?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"
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-4.3.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-4.3.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-4.3.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-4.3.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-4.3.xsd">
<!-- 只需要扫描包中的 Controller 注解 -->
<context:component-scan base-package="com.data.controller">
<context:include-filter type="annotation"
expression="org.springframework.stereotype.Controller" />
</context:component-scan>
<!-- 启动 mvc 注解驱动 -->
<mvc:annotation-driven/>
<!-- 2.配置映射处理和适配器-->
<bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping"/>
<bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter"/>
<!--支持文件上传-->
<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"/>
<!-- 配置视图解析器 ,对所有的访问和视图返回添加下面的前缀和后缀-->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/views/"/>
<property name="suffix" value=".jsp"/>
</bean>
<!-- 静态资源处理 -->
<mvc:default-servlet-handler/>
<mvc:resources mapping="/js/**" location="/WEB-INF/js/"/>
<mvc:resources mapping="/css/**" location="/WEB-INF/css/"/>
<mvc:resources mapping="/images/**" location="/WEB-INF/images/"/>
<mvc:resources mapping="/fonts/**" location="/WEB-INF/fonts"/>
<mvc:resources mapping="/Scripts/**" location="/WEB-INF/Scripts"/>
</beans>
项目中使用到的有关SSM的注解
1.@Controller ,添加在类的声明外面,表示这个类隶属于控制层
@Controller和@RestController的区别?
知识点:@RestController注解相当于@ResponseBody + @Controller合在一起的作用。
1) 如果只是使用@RestController注解Controller,则Controller中的方法无法返回jsp页面,或者html,配置的视图解析器 InternalResourceViewResolver不起作用,返回的内容就是Return 里的内容。
2) 如果需要返回到指定页面,则需要用 @Controller配合视图解析器InternalResourceViewResolver才行。
如果需要返回JSON,XML或自定义mediaType内容到页面,则需要在对应的方法上加上@ResponseBody注解。
2.@Service,service一般会分成接口类和实现类,在两个类中都要加上,并且在实现类里要加上service的名字,例如
@Service("adminService")
public class adminServiceImpl implements adminService
3.@Repository,表示dao层
4.@Autowired Spring容器中所有类型匹配的bean都被注入进来,并且如果bean有@Order注解或者实现Order接口,按照Order的先后顺序注入;
5.@RequestMapping
RequestMapping是一个用来处理请求地址映射的注解,可用于类或方法上。用于类上,表示类中的所有响应请求的方法都是以该地址作为父路径。
RequestMapping注解有六个属性,下面我们把她分成三类进行说明。
1)value, method;
value: 指定请求的实际地址,指定的地址可以是URI Template 模式(后面将会说明);
method: 指定请求的method类型, GET、POST、PUT、DELETE等;
consumes: 指定处理请求的提交内容类型(Content-Type),例如application/json, text/html;
produces: 指定返回的内容类型,仅当request请求头中的(Accept)类型中包含该指定类型才返回;
params: 指定request中必须包含某些参数值是,才让该方法处理。
headers: 指定request中必须包含某些指定的header值,才能让该方法处理请求。
6.@ResponseBody
该注解用于将Controller的方法返回的对象,通过适当的HttpMessageConverter转换为指定格式后,写入到Response对象的body数据区。
使用时机:
返回的数据不是html标签的页面,而是其他某种格式的数据时(如json、xml等)使用;
7.@RequestParam
GET和POST请求传的参数会自动转换赋值到@RequestParam 所注解的变量上
示例:
@RequestMapping("dataMange")
@Controller
public class dataMangeController {
@RequestMapping(value = "update",method = RequestMethod.POST)
@ResponseBody
public String update(@RequestParam(value = "edit_data_id",required = false) String dataID,
@RequestParam(value = "edit_dataName",required = false) String dataName,
@RequestParam(value = "edit_people",required = false) String people,
@RequestParam(value = "edit_telphone",required = false) String telphone,
@RequestParam(value = "edit_des",required = false) String des){
dataModel datamodel = new dataModel(dataID,dataName,people,telphone,des,null,null,null);
dataservice.updatedataByModel(datamodel);
return "ok";
}
}