ssm框架整合步骤

						   **ssm框架整合步骤**

Spring和Spring MVC的环境配置：

1.依赖spring-webmvc

xiaopeng-reader(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">
    <!-- 模型版本 -->  
    <modelVersion>4.0.0</modelVersion>
    
    <!--项目所在的组:com.xiaopeng,是main目录里java的目录结构--> 
    <groupId>com.xiaopeng</groupId>
    
    <!--当前项目在组中的唯一标识:xiaopeng-reader-->  
    <artifactId>xiaopeng-reader</artifactId>
    
    <!--xiaopeng-reader这个项目的版本号-->  
    <version>1.0-SNAPSHOT</version>
    
    <!--Maven依赖spring-webmvc-->
    <!--仓库配置:引入阿里云Maven镜像,提高依赖包的下载速度-->
    <repositories>
        <repository>
            <id>aliyun</id>
            <name>aliyun</name>
            <url>https://maven.aliyun.com/repository/public</url>
        </repository>
    </repositories>
    
    <!--引入依赖包-->
    <dependencies>
        <!--SpringMVC核心依赖包:含有Spring MVC 框架相关的所有类。包括框架的Servlets，Web MVC框架，控制器和视图支持-->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>5.3.3</version>
        </dependency>
        
        <!--Freemarker:根据提供的数据和创建好的模板,去自动的创建html静态页面-->
        <dependency>
            <groupId>org.freemarker</groupId>
            <artifactId>freemarker</artifactId>
            <version>2.3.30</version>
        </dependency>
        
        <!--为了让SpringMVC支持Freemarker，引入Spring整合组件-->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context-support</artifactId>
            <version>5.3.3</version>
        </dependency>
        
        <!--Jackson：序列化工具包-->
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-core</artifactId>
            <version>2.11.0</version>
        </dependency>
        
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-annotations</artifactId>
            <version>2.11.0</version>
        </dependency>
        
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
            <version>2.11.0</version>
        </dependency>
     </dependencies>
</project>

2.配置DispatcherServlet

src/main/webapp/WEB-INF/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_3_1.xsd"
         version="3.1">
    <!--配置DispatcherServlet：Spring MVC最核心的对象,用于拦截Http请求,
        并根据请求的URL调用与之对应的Controller方法,来完成Http请求的处理-->
    <servlet>
        <servlet-name>springmvc</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:applicationContext*.xml</param-value>
        </init-param>
        
        <!--在Web应用启动时自动创建Spring Ioc容器,并初始化DispatcherServlet-->
        <load-on-startup>0</load-on-startup> 
    </servlet>
    
    <!--为DispatcherServlet映射url-->
    <servlet-mapping>
        <servlet-name>springmvc</servlet-name>
        <!--"/"代表拦截所有请求-->
        <url-pattern>/</url-pattern>
    </servlet-mapping>
    
</web-app>

3.启用Spring MVC注解模式

src\main\resources\applicationContext.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:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:task="http://www.springframework.org/schema/task"
       xmlns:tx="http://www.springframework.org/schema/tx"
       xsi:schemaLocation="
            http://www.springframework.org/schema/beans
            https://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
            http://www.springframework.org/schema/task
            http://www.springframework.org/schema/task/spring-task.xsd
            http://www.springframework.org/schema/tx
            http://www.springframework.org/schema/tx/spring-tx.xsd">
    <!--开启SpringMVC注解模式-->
    <context:component-scan base-package="com.xiaopeng"/>
    <mvc:annotation-driven/>
    <mvc:default-servlet-handler/>
</beans>

4.配置请求与响应字符集

<!--解决Get、post请求的中文乱码问题-->
    <filter>
        <filter-name>characterFilter</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>characterFilter</filter-name>
        <url-pattern>/*
    

<mvc:annotation-driven>
        <mvc:message-converters>
            <bean class="org.springframework.http.converter.StringHttpMessageConverter">
                <property name="supportedMediaTypes">
                    <list>
                        <value>text/html;charset=utf-8</value>
                    </list>
                </property>
            </bean>
        </mvc:message-converters>
    </mvc:annotation-driven>

5.配置Freemarker模板引擎

<!--配置Freemarker模板引擎-->
<bean id="freemarkerConfig" class="org.springframework.web.servlet.view.freemarker.FreeMarkerConfigurer">
        <property name="templateLoaderPath" value="/WEB-INF/ftl"/>
        <property name="freemarkerSettings">
            <props>
                <prop key="defaultEncoding">utf-8</prop>
            </props>
        </property>
    </bean>
    <bean id="viewResolver" class="org.springframework.web.servlet.view.freemarker.FreeMarkerViewResolver">
        <property name="contentType" value="text/html;charset=utf-8"/>
        <property name="suffix" value=".ftl"/>
    </bean>

6.配置Json序列化组件

 <bean class="org.springframework.http.converter.StringHttpMessageConverter">
                <property name="supportedMediaTypes">
                    <list>
                        <!--JSON(Jackson)序列化输出配置-->
                        <value>application/json;charset=utf-8</value>
                    </list>
                </property>
            </bean>

Spring和MyBatis的整合配置：

1.依赖mybatis-spring及驱动

		<!-引入相关依赖-->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jdbc</artifactId>
            <version>5.3.3</version>
        </dependency>
        
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>3.5.4</version>
        </dependency>
        
        <!--Mybatis和Spring整合组件-->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis-spring</artifactId>
            <version>2.0.3</version>
        </dependency>
        
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>8.0.21</version>
        </dependency>
        
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
            <version>1.1.14</version>
        </dependency>

2.配置数据源与连接池

    <!--配置数据源-->
    <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">
        <property name="driverClassName" value="com.mysql.cj.jdbc.Driver"/>
        <property name="url" value="jdbc:mysql://localhost:3306/xiaopeng_reader?useUnicode=true&characterEncoding=UTF-8&serverTimezone=Asia/Shanghai"/>
        <property name="username" value="root"/>
        <property name="password" value="123456"/>
        <property name="initialSize" value="10"/>
        <property name="maxActive" value="20"/>
    </bean>

3.配置SqlSessionFactory

<!--创建sessionFactory对象-->
    <bean id="sessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource"/>
        <property name="mapperLocations" value="classpath:mappers/*.xml"/>
    </bean>

4.配置Mapper扫描器

	<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
    	<property name="basePackage" value="com.xiaopeng.reader.mapper"/>
	</bean>

5.创建mybatis-config.xml

    <bean id="sessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
      	<property name="configLocation" value="classpath:mybatis-config.xml"/>  
    </bean>

src\main\resources\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>
</configuration>

整合其它组件：

1.配置logback日志输出

src\main\resources\logback.xml

<?xml version="1.0" encoding="UTF-8"?>
<configuration>
    <appender name="console" class="ch.qos.logback.core.ConsoleAppender">
        <encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder">
            <pattern>%d{
     HH:mm:ss}%-5level[%thread]%logger{
     30} - %msg%n</pattern>
            <charset>UTF=8</charset>
        </encoder>
    </appender>
    <root level="debug">
        <appender-ref ref="console"/>
    </root>
</configuration>

2.声明式事务配置

<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"/>
    </bean>
    <tx:annotation-driven transaction-manager="transactionManager"/>

3.整合junit单元测试

<!--单元测试依赖-->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-test</artifactId>
            <version>5.3.3</version>
        </dependency>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.12</version>
        </dependency>

        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>javax.servlet-api</artifactId>
            <version>3.1.0</version>
            <scope>provided</scope>
        </dependency>
    </dependencies>