SSM整合

SSM(SpringMvc-Spring-MyBatis)整合


  1. 導入依賴java

    <properties>
      <spring.version>5.0.2.RELEASE</spring.version>
      <log4j.version>2.11.2</log4j.version>
      <mysql.version>5.1.28</mysql.version>
      <mybatis.version>3.5.3</mybatis.version>
      <slf4j.version>1.7.28</slf4j.version>
    </properties>
    <dependencies>
      <!-- spring+springMvc -->
      <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-webmvc</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>${spring.version}</version>
      </dependency>
      <!-- 切面 -->
      <dependency>
        <groupId>org.aspectj</groupId>
        <artifactId>aspectjweaver</artifactId>
        <version>1.9.4</version>
      </dependency>
      <!-- mybatis -->
      <dependency>
        <groupId>org.mybatis</groupId>
        <artifactId>mybatis</artifactId>
        <version>${mybatis.version}</version>
      </dependency>
      <!-- mybatis和spring整合 -->
      <dependency>
        <groupId>org.mybatis</groupId>
        <artifactId>mybatis-spring</artifactId>
        <version>2.0.3</version>
      </dependency>
      <!-- mysql -->
      <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <version>${mysql.version}</version>
      </dependency>
      <!-- C3P0 -->
      <dependency>
        <groupId>com.mchange</groupId>
        <artifactId>c3p0</artifactId>
        <version>0.9.5.4</version>
      </dependency>
      <!-- 文件上傳須要的組件 -->
      <dependency>
        <groupId>commons-fileupload</groupId>
        <artifactId>commons-fileupload</artifactId>
        <version>1.3.3</version>
      </dependency>
      <!-- json -->
      <dependency>
        <groupId>com.fasterxml.jackson.core</groupId>
        <artifactId>jackson-databind</artifactId>
        <version>2.10.0</version>
      </dependency>
      <!-- 跨服務器文件傳輸 -->
      <!--<dependency>
        <groupId>com.sun.jersey</groupId>
        <artifactId>jersey-client</artifactId>
        <version>1.19.1</version>
      </dependency>-->
      <!-- github分頁 -->
      <dependency>
        <groupId>com.github.pagehelper</groupId>
        <artifactId>pagehelper</artifactId>
        <version>5.1.2</version>
      </dependency>
      <!-- servlet, jsp和jstl -->
      <dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>javax.servlet-api</artifactId>
        <version>3.1.0</version>
        <scope>provided</scope>
      </dependency>
      <dependency>
        <groupId>javax.servlet.jsp</groupId>
        <artifactId>javax.servlet.jsp-api</artifactId>
        <version>2.3.1</version>
        <scope>provided</scope>
      </dependency>
      <dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>jstl</artifactId>
        <version>1.2</version>
      </dependency>
      <!-- 測試 -->
      <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-test</artifactId>
        <version>${spring.version}</version>
      </dependency>
      <dependency>
        <groupId>junit</groupId>
        <artifactId>junit</artifactId>
        <version>4.12</version>
        <scope>test</scope>
      </dependency>
      <!-- 日誌: log4j2 -->
      <dependency>
        <groupId>org.apache.logging.log4j</groupId>
        <artifactId>log4j-core</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>
    </dependencies>
    • properties中的參數用於版本鎖定, 根據須要修改便可, 另外, 其餘的工具類根據須要添加便可
  2. 設置SpringMvc配置文件mysql

    <?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"
           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">
    
        <!-- 配置視圖解析器 -->
        <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
            <property name="prefix" value="/"/>
            <property name="suffix" value=".jsp"/>
        </bean>
    
        <!-- 配置文件解析器 -->
        <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
            <property name="maxUploadSize" value="10485760"/>
        </bean>
    
        <!-- 靜態資源放行 -->
        <mvc:default-servlet-handler/>
        <!-- 開啓註解 -->
        <mvc:annotation-driven/>
    
    </beans>
    • 異常解析器和攔截器根據需求本身配
  3. Spring配置文件applicationContext.xml配置(我在Spring的配置文件中設置了MybBatis的全部信息, 因此再也不配置MyBatis的配置文件)git

    <?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:tx="http://www.springframework.org/schema/tx"
           xmlns:aop="http://www.springframework.org/schema/aop"
           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 http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd">
        <!-- 開啓註解掃描並排除 @Controller 註解 -->
        <!-- TODO -->
        <context:component-scan base-package="cn.ann">
            <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
        </context:component-scan>
        <!-- 加載外部 properties 文件(該文件用於存儲數據庫鏈接信息) -->
        <context:property-placeholder location="classpath:database.properties"/>
    
        <!-- 配置數據源|鏈接池 -->
        <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
            <property name="driverClass" value="${mysql.driver}"/>
            <property name="jdbcUrl" value="${mysql.url}"/>
            <property name="user" value="${mysql.username}"/>
            <property name="password" value="${mysql.password}"/>
        </bean>
    
        <!-- 配置SqlSessionFactory -->
        <bean id="sqlSession" class="org.mybatis.spring.SqlSessionFactoryBean">
            <property name="dataSource" ref="dataSource"/>
            <!-- MyBatis中的別名 -->
            <!-- TODO -->
            <property name="typeAliasesPackage" value="cn.ann.beans"/>
            <!-- MyBatis中的setting標籤配置, 按須要配置便可 -->
            <!-- TODO -->
            <property name="configuration">
                <bean class="org.apache.ibatis.session.Configuration">
                    <!-- 配置數據庫字段名轉駝峯 -->
                    <property name="mapUnderscoreToCamelCase" value="true"/>
                    <!-- 配置mybatis怎麼處理null值 -->
                    <property name="jdbcTypeForNull" value="NULL"/>
                    <!-- 配置懶加載 -->
                    <property name="lazyLoadingEnabled" value="true"/>
                    <property name="aggressiveLazyLoading" value="false"/>
                    <property name="lazyLoadTriggerMethods" value=""/>
                    <!-- 配置日誌 -->
                    <property name="logImpl" value="org.apache.ibatis.logging.log4j2.Log4j2Impl"/>
                </bean>
            </property>
        </bean>
        <!-- 配置mapper文件的路徑, 配置了該bean就不用寫Mapper的實現了 -->
        <!-- TODO -->
        <bean id="mapperScan" class="org.mybatis.spring.mapper.MapperScannerConfigurer">
            <property name="basePackage" value="cn.ann.mapper"/>
        </bean>
    
        <!-- 配置事務 -->
        <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
            <property name="dataSource" ref="dataSource"/>
        </bean>
        <tx:advice id="txAdvice">
            <tx:attributes>
                <!-- TODO -->
                <tx:method name="*"/>
                <tx:method name="get*" propagation="SUPPORTS" read-only="true"/>
                <tx:method name="find*" propagation="SUPPORTS" read-only="true"/>
            </tx:attributes>
        </tx:advice>
        <!-- 配置事務到切面 -->
        <aop:config>
            <!-- TODO -->
            <aop:pointcut id="txPc" expression="execution(* cn.ann.service..*.*(..))"/>
            <aop:advisor advice-ref="txAdvice" pointcut-ref="txPc"/>
        </aop:config>
    </beans>
    • 配置文件中須要修改的地方, 我都用 TODO 標註了, 按需修改便可
  4. log4j2配置文件(無腦複製)github

    <?xml version="1.0" encoding="UTF-8"?>
    <configuration status="WARN" monitorInterval="30">
        <appenders>
            <console name="Console" target="SYSTEM_OUT">
                <PatternLayout pattern="[%d{HH:mm:ss:SSS}] [%p] - %l - %m%n"/>
            </console>
            <File name="log" fileName="log/test.log" append="false">
                <PatternLayout pattern="%d{HH:mm:ss.SSS} %-5level %class{36} %L %M - %msg%xEx%n"/>
            </File>
            <RollingFile name="RollingFileInfo" fileName="${sys:user.home}/logs/info.log"
                         filePattern="${sys:user.home}/logs/$${date:yyyy-MM}/info-%d{yyyy-MM-dd}-%i.log">
                <ThresholdFilter level="info" onMatch="ACCEPT" onMismatch="DENY"/>
                <PatternLayout pattern="[%d{HH:mm:ss:SSS}] [%p] - %l - %m%n"/>
                <Policies>
                    <TimeBasedTriggeringPolicy/>
                    <SizeBasedTriggeringPolicy size="100 MB"/>
                </Policies>
            </RollingFile>
            <RollingFile name="RollingFileWarn" fileName="${sys:user.home}/logs/warn.log"
                         filePattern="${sys:user.home}/logs/$${date:yyyy-MM}/warn-%d{yyyy-MM-dd}-%i.log">
                <ThresholdFilter level="warn" onMatch="ACCEPT" onMismatch="DENY"/>
                <PatternLayout pattern="[%d{HH:mm:ss:SSS}] [%p] - %l - %m%n"/>
                <Policies>
                    <TimeBasedTriggeringPolicy/>
                    <SizeBasedTriggeringPolicy size="100 MB"/>
                </Policies>
                <DefaultRolloverStrategy max="20"/>
            </RollingFile>
            <RollingFile name="RollingFileError" fileName="${sys:user.home}/logs/error.log"
                         filePattern="${sys:user.home}/logs/$${date:yyyy-MM}/error-%d{yyyy-MM-dd}-%i.log">
                <ThresholdFilter level="error" onMatch="ACCEPT" onMismatch="DENY"/>
                <PatternLayout pattern="[%d{HH:mm:ss:SSS}] [%p] - %l - %m%n"/>
                <Policies>
                    <TimeBasedTriggeringPolicy/>
                    <SizeBasedTriggeringPolicy size="100 MB"/>
                </Policies>
            </RollingFile>
        </appenders>
        <loggers>
            <logger name="org.springframework" level="INFO"/>
            <logger name="org.mybatis" level="INFO"/>
            <root level="all">
                <appender-ref ref="Console"/>
                <appender-ref ref="RollingFileInfo"/>
                <appender-ref ref="RollingFileWarn"/>
                <appender-ref ref="RollingFileError"/>
            </root>
        </loggers>
    </configuration>
  5. 在Tomcat的web.xml中配置spring和springMvc
    • 配置spring隨服務器啓動而啓動並加載配置文件web

      <!-- 配置服務器啓動加載spring配置文件 -->
      <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>
    • 配置springMvcspring

      <!-- 配置spring-mvc -->
      <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>
      <!-- 字符編碼過濾器 -->
      <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>/*</url-pattern>
      </filter-mapping>

本文代碼: 此處的 ssm-demo
SSM整合依賴包括:sql

  1. spring依賴(基礎包, aop, 切面, 事務, jdbc)
  2. springMvc依賴(webMvc)
  3. mybatis依賴(mybatis包, mybatis-spring整合包)
  4. 數據庫驅動包(mysql)
  5. servlet, jsp, jstl支持
  6. 工具包(酌情刪減)
    1. 文件上傳(fileupload)
    2. 鏈接池(c3p0)
    3. json轉化(jackson)
    4. 跨服務器文件傳輸依賴(jersey-client: 已註釋)
    5. github分頁(pagehelper)
  7. 測試和日誌打印
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