YD：SSM整合

YD：SSM整合

1、依赖导入（包括连接池）

<dependencies>
        <!--log4j日志记录-->
        <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
            <version>1.2.12</version>
        </dependency>
        <!--Junit-->
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.12</version>
        </dependency>
        <!--数据库驱动-->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.47</version>
        </dependency>

        <!-- 数据库连接池 -->
        <dependency>
            <groupId>com.mchange</groupId>
            <artifactId>c3p0</artifactId>
            <version>0.9.5.2</version>
        </dependency>

        <!--Servlet - JSP -->
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>servlet-api</artifactId>
            <version>2.5</version>
        </dependency>
        <dependency>
            <groupId>javax.servlet.jsp</groupId>
            <artifactId>jsp-api</artifactId>
            <version>2.2</version>
        </dependency>
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>jstl</artifactId>
            <version>1.2</version>
        </dependency>

        <!--Mybatis-->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>3.5.2</version>
        </dependency>
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis-spring</artifactId>
            <version>2.0.2</version>
        </dependency>

        <!--Spring-->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>5.1.9.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jdbc</artifactId>
            <version>5.1.9.RELEASE</version>
        </dependency>

        <!--lombok-->
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>1.18.10</version>
            <scope>provided</scope>
        </dependency>

        <!--druid连接池-->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
            <version>1.1.16</version>
        </dependency>

        <!--spring mvc-json依赖-->
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
            <version>2.9.9</version>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-core</artifactId>
            <version>2.9.9</version>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-annotations</artifactId>
            <version>2.9.9</version>
        </dependency>

    </dependencies>

2、整合mybatis（dao层 service）

log4j.properties

# Set root category priority to INFO and its only appender to CONSOLE.
#log4j.rootCategory=INFO, CONSOLE            debug   info   warn error fatal
log4j.rootCategory=debug, CONSOLE, LOGFILE

# Set the enterprise logger category to FATAL and its only appender to CONSOLE.
log4j.logger.org.apache.axis.enterprise=FATAL, CONSOLE

# CONSOLE is set to be a ConsoleAppender using a PatternLayout.
log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppender
log4j.appender.CONSOLE.layout=org.apache.log4j.PatternLayout
log4j.appender.CONSOLE.layout.ConversionPattern=%d{ISO8601} %-6r [%15.15t] %-5p %30.30c %x - %m\n

# LOGFILE is set to be a File appender using a PatternLayout.
log4j.appender.LOGFILE=org.apache.log4j.FileAppender
log4j.appender.LOGFILE.File=mybatis.log
log4j.appender.LOGFILE.Append=true
log4j.appender.LOGFILE.layout=org.apache.log4j.PatternLayout
log4j.appender.LOGFILE.layout.ConversionPattern=%d{ISO8601} %-6r [%15.15t] %-5p %30.30c %x - %m\n

新建mybatis.properties（复制时更改数据库）

jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost/ssmgz_db
jdbc.username=root
jdbc.password=root

新建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>
        <!-- 在这里设置日志，则日志打印在控制态，否则按照配置打印文件中 -->
        <setting name="logImpl" value="STDOUT_LOGGING"/>

        <!-- 开启驼峰写法 -->
        <setting name="mapUnderscoreToCamelCase" value="true"/>

    </settings>

    <typeAliases>
        <package name="com.aaa.entity"/>
    </typeAliases>
    <mappers>
        <package name="com.aaa.dao"/>
    </mappers>

</configuration>

新建applicationconfig.xml（注意sqlsessionfactorybeanname）

<?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"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
       http://www.springframework.org/schema/context https://www.springframework.org/schema/context/spring-context.xsd
       http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd">

    <context:property-placeholder location="classpath:mybatis.properties"></context:property-placeholder>

    <bean class="com.alibaba.druid.pool.DruidDataSource" id="druidDataSource">
        <property name="driverClassName" value="${jdbc.driver}"></property>
        <property name="url" value="${jdbc.url}"></property>
        <property name="username" value="${jdbc.username}"></property>
        <property name="password" value="${jdbc.password}"></property>
    </bean>

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

    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.aaa.dao"></property>
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property>
    </bean>

    <context:component-scan base-package="com.aaa.service"></context:component-scan>

    <!-- 配置事务管理器 -->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="druidDataSource"></property>
    </bean>

    <!-- 开启事务管理器-->
    <tx:annotation-driven transaction-manager="transactionManager"></tx:annotation-driven>

</beans>

3、整合springmvc

新建springmvc-servlet.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:mvc="http://www.springframework.org/schema/mvc" xmlns:task="http://www.springframework.org/schema/task"

       xsi:schemaLocation="http://www.springframework.org/schema/beans
       http://www.springframework.org/schema/beans/spring-beans.xsd
       http://www.springframework.org/schema/context
       https://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/mvc https://www.springframework.org/schema/mvc/spring-mvc.xsd http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task.xsd">


      <!-- 配置包扫描器 让注解生效 -->
      <context:component-scan base-package="com.aaa.controller"></context:component-scan>

      <!-- 开启mvc 注解驱动   默认情况已经开启了 json 与 实体的转换 -->
      <mvc:annotation-driven></mvc:annotation-driven>

<!--      &lt;!&ndash; 配这spring mvc 静态文件目录  让DispatchServlet 不拦截  &ndash;&gt;
      <mvc:resources mapping="/js/*" location="/js/"></mvc:resources>
      <mvc:resources mapping="/html/*" location="/html/"></mvc:resources>-->

      <!-- 配置日期转换器

           1. 在ConversionServiceFactoryBean 配置自定义转换器
           2.   <mvc:annotation-driven conversion-service="conversionService">
            在mvc:annotation-driven 引用 ConversionServiceFactoryBean
      -->
<!--      <bean id="conversionService" class="org.springframework.context.support.ConversionServiceFactoryBean">

            <property name="converters">
                  <set>
                        &lt;!&ndash; 配置自定义转换器&ndash;&gt;
                        <bean class="com.aaa.springmvc.convert.DateConvert"></bean>
                  </set>
            </property>

      </bean>-->

      <!--
           使用formatter 接口完成格式
           1.申明   FormattingConversionServiceFactoryBean 并注入自定义的formatter
           2.在 <mvc:annotation-driven conversion-service="conversionService"> 中引用FormattingConversionServiceFactoryBean
      -->
 <!--     <bean id="conversionService" class="org.springframework.format.support.FormattingConversionServiceFactoryBean">

            <property name="formatters">
                  <set>
                        <bean class="com.aaa.springmvc.convert.DateFormatter"></bean>
                  </set>
            </property>
      </bean>-->

<!--

      &lt;!&ndash;将 路径/helloController  和 HelloController控制器进行一个绑定 &ndash;&gt;
      <bean name="/helloController" class="com.aaa.springmvc.controller.HelloController">

      </bean>
-->

       <!--  如果开发者 没有明示 写出 这个三个bean ，那么springmvc 在初始化时 会more给我们在容器中注入一下三个bean -->
      <!--  将bean的name作为路径 key 和 Controller  value 做一个map 映射   -->
      <bean class="org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping"></bean>


      <!--  像容器注入一个处理器适配器    -->
      <bean class="org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter"></bean>


      <!-- 像容器注入视图解析器   将model 解析为浏览器 识别的html   -->
      <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">

            <!-- 为返回的jsp 路径配置前缀 -->
            <property name="prefix" value="/jsp/"></property>

            <!-- 未返回的jsp 配置后缀 -->
            <property name="suffix" value=".jsp"></property>
      </bean>

      <!-- 配置 上传文件解析器
           1.将 CommonsMultipartResolver 在容器中引入
           2.id="multipartResolver"  将id命名为 id="multipartResolver" 必须是这一个
       -->
  <!--    <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">

          &lt;!&ndash;默认编码格式 &ndash;&gt;
          <property name="defaultEncoding" value="utf-8"></property>
          &lt;!&ndash;设置缓冲区  &ndash;&gt;
          <property name="maxInMemorySize" value="102400"></property>

      </bean>-->

<!--
      &lt;!&ndash;通过  mvc:interceptors 配置拦截器 &ndash;&gt;
      <mvc:interceptors>

            &lt;!&ndash; interceptor 拦截的顺序 和 配置的顺序有关系 &ndash;&gt;
            &lt;!&ndash; 全局拦截器 所有经过DispatcherServlet的请求都会拦截 &ndash;&gt;
            <bean class="com.aaa.springmvc.interceptor.MyInterceptor"></bean>

            &lt;!&ndash; 声明局部拦截器&ndash;&gt;
            <mvc:interceptor>
                  <mvc:mapping path="/test/**"/> &lt;!&ndash; 声明局部拦截器时  先写 <mvc:mapping 再写 bean 否则报错&ndash;&gt;
                  &lt;!&ndash;   <mvc:exclude-mapping 排除那些路径 不拦截  &ndash;&gt;
                  <mvc:exclude-mapping path="/test/firstA"/>
                  <bean class="com.aaa.springmvc.interceptor.TestInterceptor"></bean>

            </mvc:interceptor>

      </mvc:interceptors>-->



</beans>

配置web.xml 监听器 容器一经创建就加载applicationconfig.xml

建立webapp项目需要的web.xml(webapp项目)

<!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>

    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:applicationconfig.xml</param-value>
    </context-param>

    <filter>
        <filter-name>encoding</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>encoding</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>


    <!-- 声明dispatcherServlet  -->
    <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:springmvc-servlet.xml</param-value>
        </init-param>
    </servlet>

    <!--  springmvc 会拦截 /下路径，如果 /路径没有找到对应servlet 就走当前/servlet
                     相当于默认路径    -->
    <servlet-mapping>
        <servlet-name>springmvc</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>


</web-app>

4、tomcat中vm options

解决控制台乱码

-Dfile.encoding=UTF-8

5、项目异常重新导入