ssm整合笔记配置文件版
2021/5/30 10:23:11
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ssm整合笔记配置文件版
1.创建maven-web项目
2.在pom.xml文件里加入jar包坐标
<?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>com.itheima</groupId> <artifactId>my_ssm</artifactId> <version>1.0-SNAPSHOT</version> <packaging>war</packaging> <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> </properties> <dependencies> <!--servlet环境--> <dependency> <groupId>javax.servlet</groupId> <artifactId>javax.servlet-api</artifactId> <version>3.1.0</version> <scope>provided</scope> </dependency> <!--spring+springmvc环境环境--> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>5.1.9.RELEASE</version> </dependency> <!--mybatis环境--> <!--mybatis环境--> <!--mybatis环境--> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis</artifactId> <version>3.5.3</version> </dependency> <!--mysql环境--> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.47</version> </dependency> <!--spring整合jdbc--> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jdbc</artifactId> <version>5.1.9.RELEASE</version> </dependency> <!--spring整合mybatis--> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis-spring</artifactId> <version>2.0.3</version> </dependency> <!--druid连接池--> <dependency> <groupId>com.alibaba</groupId> <artifactId>druid</artifactId> <version>1.1.16</version> </dependency> <!--分页插件坐标--> <dependency> <groupId>com.github.pagehelper</groupId> <artifactId>pagehelper</artifactId> <version>5.1.2</version> </dependency> <!--jackson--> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-databind</artifactId> <version>2.9.0</version> </dependency> <!--其他组件--> <!--其他组件--> <!--其他组件--> <!--junit单元测试--> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.12</version> </dependency> <!--spring整合junit--> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-test</artifactId> <version>5.1.9.RELEASE</version> </dependency> </dependencies> <build> <!--设置插件--> <plugins> <!--具体的插件配置--> <plugin> <groupId>org.apache.tomcat.maven</groupId> <artifactId>tomcat7-maven-plugin</artifactId> <version>2.1</version> <configuration> <port>80</port> <path>/</path> </configuration> </plugin> </plugins> </build> </project>
3.创建webapp->WEB-INF->web.xml文件,在配置文件中读入applicationContext.xml和spring-mvc文件
<?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"> <!--启动服务器时,通过监听器加载spring运行环境--> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <!-- 配置SpringMVC核心控制器,拦截所有请求--> <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*:spring-mvc.xml</param-value> </init-param> </servlet> <servlet-mapping> <servlet-name>DispatcherServlet</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> <!--乱码处理过滤器,与Servlet中使用的完全相同,差异之处在于处理器的类由Spring提供--> <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> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath*:applicationContext.xml</param-value> </context-param> </web-app>
4.jdbc.properties
jdbc.driver=com.mysql.jdbc.Driver jdbc.url=jdbc:mysql://localhost:3306/ssm_db jdbc.username=root jdbc.password=1234
5.application.xml,mybatis整合进去
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx" 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/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd"> <context:component-scan base-package="com.itheima"> <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/> </context:component-scan> <!--加载properties文件--> <context:property-placeholder location="classpath*:jdbc.properties"/> <!--数据源--> <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource"> <property name="driverClassName" value="${jdbc.driver}"/> <property name="url" value="${jdbc.url}"/> <property name="username" value="${jdbc.username}"/> <property name="password" value="${jdbc.password}"/> </bean> <!--整合mybatis到spring中--> <bean class="org.mybatis.spring.SqlSessionFactoryBean"> <property name="dataSource" ref="dataSource"/> <property name="typeAliasesPackage" value="com.itheima.domain"/> <!--分页插件--> <property name="plugins"> <array> <bean class="com.github.pagehelper.PageInterceptor"> <property name="properties"> <props> <prop key="helperDialect">mysql</prop> <!--pageNum<=0 时会查询第一页,pageNum>pageSize(超过总数时),会查询最后一页--> <prop key="reasonable">true</prop> </props> </property> </bean> </array> </property> </bean> <!--映射扫描--> <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <property name="basePackage" value="com.itheima.dao"/> </bean> <!--开启注解式事务--> <tx:annotation-driven transaction-manager="txManager"/> <!--事务管理器--> <bean id="txManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="dataSource"/> </bean> </beans>
6.springmvc.xml
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:context="http://www.springframework.org/schema/context" xmlns:mvc="http://www.springframework.org/schema/mvc" 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/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd"> <!--扫描加载所有的控制类--> <context:component-scan base-package="com.itheima.controller"/> <!-- 放行静态资源--> <!--SpringMVC提供的通用资源放行方式--> <mvc:default-servlet-handler/> <!--必须组合使用--> <mvc:annotation-driven> <!-- 配置后解决中文乱码问题--> <mvc:message-converters> <bean class="org.springframework.http.converter.StringHttpMessageConverter"> <constructor-arg value="UTF-8" /> </bean> </mvc:message-converters> </mvc:annotation-driven> <!-- 配置视图解析器--> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <!-- 设置访问前缀--> <property name="prefix" value="/WEB-INF/page/"/> <!-- 设置访问后缀--> <property name="suffix" value=".jsp"/> </bean> </beans>
7.domain、controller、service、dao层
8.在resources下建立xxxDao.xml,必须和xxxdao的全类名相同
<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd"> <mapper namespace="com.itheima.dao.UserDao"> <!--添加--> <insert id="save" parameterType="user"> insert into user(userName,password,realName,gender,birthday)values(#{userName},#{password},#{realName},#{gender},#{birthday}) </insert> <!--删除--> <delete id="delete" parameterType="int"> delete from user where uuid = #{uuid} </delete> <!--修改--> <update id="update" parameterType="user"> update user set userName=#{userName},password=#{password},realName=#{realName},gender=#{gender},birthday=#{birthday} where uuid=#{uuid} </update> <!--查询单个--> <select id="get" resultType="user" parameterType="int"> select * from user where uuid = #{uuid} </select> <!--分页查询--> <select id="getAll" resultType="user"> select * from user </select> <!--登录--> <select id="getByUserNameAndPassword" resultType="user" > select * from user where userName=#{userName} and password=#{password} </select> </mapper>
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