ssm整合开发的相关步骤和增删改查

一、环境搭建

我的目录是：

1）创建一个maven web项目，并配置对应的依赖；

pom.xml文件为：

<?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.seecen</groupId>
  <artifactId>ssm</artifactId>
  <version>1.0-SNAPSHOT</version>
  <packaging>war</packaging>

  <name>ssm Maven Webapp</name>
  <!-- FIXME change it to the project's website -->
  <url>http://www.example.com</url>

  <!--properties中配置版本信息-->
  <properties>
    <!--编码格式-->
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <!--编译版本-->
    <maven.compiler.source>1.8</maven.compiler.source>
    <maven.compiler.target>1.8</maven.compiler.target>

    <junit.version>4.12</junit.version>
    <spring.version>5.0.3.RELEASE</spring.version>
    <druid.version>1.1.2</druid.version>
    <jstl.version>1.2</jstl.version>
    <servlet-api.version>4.0.0</servlet-api.version>
    <jsp-api.version>2.3.1</jsp-api.version>
    <commons-fileupload.version>1.3.3</commons-fileupload.version>
    <ehcache.version>2.10.4</ehcache.version>
    <oracle.version>11.2.0.3.0</oracle.version>
    <slf4j.version>1.7.25</slf4j.version>
    <mybatis.version>3.4.5</mybatis.version>
    <pagehelper.version>5.1.4</pagehelper.version>
    <mybatis-ehcache.version>1.0.0</mybatis-ehcache.version>
    <mybatis-generator-core.version>1.3.5</mybatis-generator-core.version>
    <maven-plugin-api.version>3.5.0</maven-plugin-api.version>
    <mybatis.spring.version>1.3.1</mybatis.spring.version>
    <jackson.version>2.9.0</jackson.version>
    <shiro.version>1.4.0</shiro.version>

  </properties>

  <dependencies>

    <!--org.aspectj aop注解-->
    <dependency>
      <groupId>org.aspectj</groupId>
      <artifactId>aspectjweaver</artifactId>
      <version>1.8.13</version>
    </dependency>
    <dependency>
      <groupId>org.aspectj</groupId>
      <artifactId>aspectjrt</artifactId>
      <version>1.8.10</version>
    </dependency>

    <!-- 缓存 -->
    <dependency>
      <groupId>net.sf.ehcache</groupId>
      <artifactId>ehcache</artifactId>
      <version>${ehcache.version}</version>
    </dependency>
    <!-- oracle -->
    <dependency>
      <groupId>com.oracle</groupId>
      <artifactId>ojdbc6</artifactId>
      <version>${oracle.version}</version>
    </dependency>
    <!-- JSP相关 -->
    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>jstl</artifactId>
      <version>${jstl.version}</version>
    </dependency>
    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>javax.servlet-api</artifactId>
      <version>${servlet-api.version}</version>
      <scope>provided</scope>
    </dependency>
    <dependency>
      <groupId>javax.servlet.jsp</groupId>
      <artifactId>javax.servlet.jsp-api</artifactId>
      <version>${jsp-api.version}</version>
      <scope>provided</scope>
    </dependency>

    <!-- 文件上传组件 -->
    <dependency>
      <groupId>commons-fileupload</groupId>
      <artifactId>commons-fileupload</artifactId>
      <version>${commons-fileupload.version}</version>
    </dependency>
    <!--单元测试jar-->
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>${junit.version}</version>
      <scope>test</scope>
    </dependency>

    <!--spring mvc -->
    <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>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-context-support</artifactId>
      <version>${spring.version}</version>
    </dependency>

    <!-- Spring web依赖 -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-web</artifactId>
      <version>${spring.version}</version>
    </dependency>

    <!-- Spring整合ORM框架依赖 -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-orm</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-test</artifactId>
      <version>${spring.version}</version>
      <scope>test</scope>
    </dependency>

    <!--spring websocket 模块-->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-websocket</artifactId>
      <version>${spring.version}</version>
    </dependency>

    <!-- 数据库连接池 -->
    <dependency>
      <groupId>com.alibaba</groupId>
      <artifactId>druid</artifactId>
      <version>${druid.version}</version>
    </dependency>

    <!-- 日志处理 log4j-->
    <dependency>
      <groupId>org.slf4j</groupId>
      <artifactId>slf4j-log4j12</artifactId>
      <version>${slf4j.version}</version>
    </dependency>

    <!-- Mybatis -->
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis</artifactId>
      <version>${mybatis.version}</version>
    </dependency>

    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis-ehcache</artifactId>
      <version>${mybatis-ehcache.version}</version>
    </dependency>

    <!--mybatis spring 集成jar-->
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis-spring</artifactId>
      <version>${mybatis.spring.version}</version>
    </dependency>

    <!-- mybatis反向建模 -->
    <dependency>
      <groupId>org.apache.maven</groupId>
      <artifactId>maven-plugin-api</artifactId>
      <version>${maven-plugin-api.version}</version>
    </dependency>
    <dependency>
      <groupId>org.mybatis.generator</groupId>
      <artifactId>mybatis-generator-core</artifactId>
      <version>${mybatis-generator-core.version}</version>
    </dependency>

    <!--json处理-->
    <!--实际上为三个包，但是导入databind会自动导入其他两个包-->
    <dependency>
      <groupId>com.fasterxml.jackson.core</groupId>
      <artifactId>jackson-databind</artifactId>
      <version>${jackson.version}</version>
    </dependency>

    <!--mybatis分页插件-->
    <dependency>
      <groupId>com.github.pagehelper</groupId>
      <artifactId>pagehelper</artifactId>
      <version>${pagehelper.version}</version>
    </dependency>
    <dependency>
      <groupId>cglib</groupId>
      <artifactId>cglib</artifactId>
      <version>3.2.12</version>
    </dependency>


    <!-- Shiro权限管理 -->
    <!--    <dependency>-->
    <!--      <groupId>org.apache.shiro</groupId>-->
    <!--      <artifactId>shiro-web</artifactId>-->
    <!--      <version>${shiro.version}</version>-->
    <!--    </dependency>-->
    <!--    <dependency>-->
    <!--      <groupId>org.apache.shiro</groupId>-->
    <!--      <artifactId>shiro-spring</artifactId>-->
    <!--      <version>${shiro.version}</version>-->
    <!--    </dependency>-->
    <!--    <dependency>-->
    <!--      <groupId>org.apache.shiro</groupId>-->
    <!--      <artifactId>shiro-ehcache</artifactId>-->
    <!--      <version>${shiro.version}</version>-->
    <!--    </dependency>-->
    <!--    <dependency>-->
    <!--      <groupId>org.apache.shiro</groupId>-->
    <!--      <artifactId>shiro-quartz</artifactId>-->
    <!--      <version>${shiro.version}</version>-->
    <!--    </dependency>-->
    <!--    <dependency>-->
    <!--      <groupId>org.codehaus.jackson</groupId>-->
    <!--      <artifactId>jackson-mapper-asl</artifactId>-->
    <!--      <version>1.9.13</version>-->
    <!--    </dependency>-->
  </dependencies>


  <build>
    <finalName>ssm</finalName>

    <plugins>
      <!--mybatis代码生成插件-->
      <plugin>
        <groupId>org.mybatis.generator</groupId>
        <artifactId>mybatis-generator-maven-plugin</artifactId>
        <version>1.3.5</version>
        <configuration>
          <verbose>true</verbose>
          <overwrite>true</overwrite>
        </configuration>
      </plugin>

    </plugins>


    <resources>
      <resource>
        <!-- 配置打war时候的要打的文件路径 -->
        <directory>src/main/java</directory>
        <includes>
          <include>**/*.xml</include>
        </includes>
        <filtering>false</filtering>
      </resource>
      <resource>
        <directory>src/main/resources</directory>
        <includes>
          <include>*.properties</include>
          <include>*.xml</include>
        </includes>
        <filtering>false</filtering>
      </resource>
    </resources>
  </build>
</project>

二、

1）Web.xml中配置springmvc的前端控制器，spring的监听器,spring编码过滤器；

web.xml文件为：

<?xml version="1.0" encoding="UTF-8"?>
<web-app
        version="3.0"
        xmlns="http://java.sun.com/xml/ns/javaee"
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd">

  <display-name>ssm</display-name>

  <!--编码过滤器-->
  <filter>
    <filter-name>encodingFilter</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>encodingFilter</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>

  <!--log4j 日志配置-->
  <context-param>
    <param-name>log4jConfigLocation</param-name>
    <param-value>classpath*:log4j.properties</param-value>
  </context-param>
  <context-param>
    <param-name>log4jRefreshInterval</param-name>
    <param-value>60000</param-value>
  </context-param>

  <!--配置spring-->
  <!--指定spring的配置文件路径-->
  <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath*:applicationContext*.xml</param-value>
  </context-param>
  <!-- 配置spring监听器-->
  <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>

  <!--配置shiro-->
  <!--<filter>
    <filter-name>shiroFilter</filter-name>
    <filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>
    <init-param>
      &lt;!&ndash;配置shiro过滤器的bean的名称&ndash;&gt;
      <param-name>targetBeanName</param-name>
      <param-value>shiroFilter</param-value>
    </init-param>
    <init-param>
      <param-name>targetFilterLifecycle</param-name>
      <param-value>true</param-value>
    </init-param>
  </filter>

  <filter-mapping>
    <filter-name>shiroFilter</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>-->
  <!--springmvc-->
  <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.xml</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
  </servlet>
  <servlet-mapping>
    <servlet-name>springmvc</servlet-name>
    <url-pattern>/</url-pattern>
  </servlet-mapping>

</web-app>

2）配置spring，springmvc,mybatis配置文件

applicationContext.xml为：

<?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">
    <!--设置扫描包，扫描对应包下的注解-->
    <context:component-scan
            base-package="mapper,service">
    </context:component-scan>


    <!--
        配置数据库连接池
        此处使用阿里的druid连接池，功能强大，性能优秀
         c3p0 也是一种连接池，以前项目用的比较多。
         数据库连接池的作用：
    -->
    <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource"
          init-method="init" destroy-method="close" >
        <!--${url}为引用jdbc.properties中的url配置-->
        <property name="driverClassName" value="oracle.jdbc.driver.OracleDriver"></property>
        <property name="url" value="jdbc:oracle:thin:@localhost:1521:xe"></property>
        <property name="username" value="sc2001"></property>
        <property name="password" value="sun"></property>
        <!--初始连接大小-->
        <property name="initialSize" value="5"></property>
        <!--最小连接数,连接池至少需要保持的连接数-->
        <property name="minIdle" value="5"></property>
        <!--最大连接数-->
        <property name="maxActive" value="20"></property>
        <!--配置最大等待时间-->
        <property name="maxWait" value="60000"></property>
        <!--最大空闲时间-->
        <property name="minEvictableIdleTimeMillis" value="300000"/>
        <!--连接空闲时间超过最大空闲时间时，执行validationQuery验证连接是否可用-->
        <property name="testWhileIdle" value="true"></property>
        <!--验证连接是否可用-->
        <property name="validationQuery" value="select 1 from dual"/>
    </bean>

    <!--整合mybatis-->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <!--注入数据源-->
        <property name="dataSource" ref="dataSource"></property>
        <!--指定mybatis主配置文件路径-->
        <property name="configLocation" value="classpath:mybatis.xml"/>
        <!--指定mapper.xml文件路径-->
        <property name="mapperLocations"
                  value="classpath:mapper/*.xml"></property>
    </bean>

    <!-- 整合mybatis 配置dao层接口，交由spring创建对象-->
    <bean  class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <!--指定mybatis dao层接口目录-->
        <property name="basePackage" value="mapper"/>
        <!--注入sqlsessionFactory-->
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
    </bean>



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

    <!--配置事务传播特性和 事务隔离级别-->
    <tx:advice id="txAdvice" transaction-manager="transactionManager">
        <tx:attributes>
            <!--配置事务传播特性 method为方法名, propagation配置事务传播特性
             isolation="" 指定事务隔离级别-->
            <!-- name:指定切入点的方法名，匹配的方法才能够指定到事务传播特性和隔离级别-->
            <tx:method name="save*" propagation="REQUIRED"  isolation="READ_COMMITTED" />
            <tx:method name="insert*" propagation="REQUIRED" isolation="SERIALIZABLE"/>
            <tx:method name="update*" propagation="REQUIRED" />
            <tx:method name="delete*" propagation="REQUIRED" />
            <!--查询操作 配置read-only=true，标识为只读事务。-->
            <tx:method name="find*" propagation="REQUIRED" read-only="true" />
            <tx:method name="get*" propagation="REQUIRED" read-only="true" />
            <tx:method name="select*" propagation="REQUIRED" read-only="true" />
        </tx:attributes>
    </tx:advice>

    <!--aop配置事务-->
    <aop:config>
        <!--切入点，将事务切入到service层方法-->
        <aop:pointcut id="pointcut" expression="execution(* service.*.*(..))"/>
        <!--<aop:advisor>配置事务切面-->
        <aop:advisor advice-ref="txAdvice" pointcut-ref="pointcut"/>
    </aop:config>

<!--
    <aop:aspectj-autoproxy proxy-target-class="true"></aop:aspectj-autoproxy>
-->
</beans>

a. Spring配置文件

1)   配置扫描包

2）配置dataSource 数据源

3）配置mybatis的sqlSessionFactory

4)  配置mybatisMapper接口扫描

5）事务管理器

6）配置事务传播特性和事务隔离级别

7）配置事务AOP

log4j.properties文件（日志文件）为：

#生产环境使用info
#log4j.rootLogger = info,stdout,logfile
#开发环境使用debug
log4j.rootLogger = info,stdout,logfile

log4j.logger.com.seecen.system.aop.advice = trace,aop

log4j.appender.stdout = org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout = org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern = %d{yyyy-MM-dd HH:mm:ss} %p [%C].%M(%L) --> %m%n

log4j.appender.logfile = org.apache.log4j.DailyRollingFileAppender
log4j.appender.logfile.Threshold = ERROR
log4j.appender.logfile.DatePattern='.'yyyy-MM-dd
log4j.appender.logfile.File = D:/ssmlogfile.log
log4j.appender.logfile.layout = org.apache.log4j.PatternLayout
log4j.appender.logfile.layout.ConversionPattern = %d{yyyy-MM-dd HH:mm:ss} %p [%C].%M(%L) --> %m%n
log4j.appender.logfile.Append=true

log4j.appender.aop = org.apache.log4j.DailyRollingFileAppender
log4j.appender.aop.File = D:/ssmlogfileAOP.log
log4j.appender.aop.layout = org.apache.log4j.PatternLayout
log4j.appender.aop.layout.ConversionPattern =%d{yyyy-MM-dd HH:mm:ss} %m%n
log4j.appender.aop.Append=true

log4j配置说明.properties文件为：

################################################################################
#①配置根Logger，其语法为：
#
#log4j.rootLogger = [level],appenderName,appenderName2,...
#level是日志记录的优先级，分为OFF,TRACE,DEBUG,INFO,WARN,ERROR,FATAL,ALL
##Log4j建议只使用四个级别，优先级从低到高分别是DEBUG,INFO,WARN,ERROR
#通过在这里定义的级别，您可以控制到应用程序中相应级别的日志信息的开关
#比如在这里定义了INFO级别，则应用程序中所有DEBUG级别的日志信息将不被打印出来
#appenderName就是指定日志信息输出到哪个地方。可同时指定多个输出目的
################################################################################
################################################################################
#②配置日志信息输出目的地Appender，其语法为：
#
#log4j.appender.appenderName = fully.qualified.name.of.appender.class
#log4j.appender.appenderName.optionN = valueN
#
#Log4j提供的appender有以下几种：
#1)org.apache.log4j.ConsoleAppender(输出到控制台)
#2)org.apache.log4j.FileAppender(输出到文件)
#3)org.apache.log4j.DailyRollingFileAppender(每天产生一个日志文件)
#4)org.apache.log4j.RollingFileAppender(文件大小到达指定尺寸的时候产生一个新的文件)
#5)org.apache.log4j.WriterAppender(将日志信息以流格式发送到任意指定的地方)
#
#1)ConsoleAppender选项属性
# -Threshold = DEBUG:指定日志消息的输出最低层次
# -ImmediateFlush = TRUE:默认值是true,所有的消息都会被立即输出
# -Target = System.err:默认值System.out,输出到控制台(err为红色,out为黑色)
#
#2)FileAppender选项属性
# -Threshold = INFO:指定日志消息的输出最低层次
# -ImmediateFlush = TRUE:默认值是true,所有的消息都会被立即输出
# -File = C:log4j.log:指定消息输出到C:log4j.log文件
# -Append = FALSE:默认值true,将消息追加到指定文件中，false指将消息覆盖指定的文件内容
# -Encoding = UTF-8:可以指定文件编码格式
#
#3)DailyRollingFileAppender选项属性
# -Threshold = WARN:指定日志消息的输出最低层次
# -ImmediateFlush = TRUE:默认值是true,所有的消息都会被立即输出
# -File = C:log4j.log:指定消息输出到C:log4j.log文件
# -Append = FALSE:默认值true,将消息追加到指定文件中，false指将消息覆盖指定的文件内容
# -DatePattern='.'yyyy-ww:每周滚动一次文件,即每周产生一个新的文件。还可以按用以下参数:
#              '.'yyyy-MM:每月
#              '.'yyyy-ww:每周
#              '.'yyyy-MM-dd:每天
#              '.'yyyy-MM-dd-a:每天两次
#              '.'yyyy-MM-dd-HH:每小时
#              '.'yyyy-MM-dd-HH-mm:每分钟
# -Encoding = UTF-8:可以指定文件编码格式
#
#4)RollingFileAppender选项属性
# -Threshold = ERROR:指定日志消息的输出最低层次
# -ImmediateFlush = TRUE:默认值是true,所有的消息都会被立即输出
# -File = C:/log4j.log:指定消息输出到C:/log4j.log文件
# -Append = FALSE:默认值true,将消息追加到指定文件中，false指将消息覆盖指定的文件内容
# -MaxFileSize = 100KB:后缀可以是KB,MB,GB.在日志文件到达该大小时,将会自动滚动.如:log4j.log.1
# -MaxBackupIndex = 2:指定可以产生的滚动文件的最大数
# -Encoding = UTF-8:可以指定文件编码格式
################################################################################
################################################################################
#③配置日志信息的格式(布局)，其语法为：
#
#log4j.appender.appenderName.layout = fully.qualified.name.of.layout.class
#log4j.appender.appenderName.layout.optionN = valueN
#
#Log4j提供的layout有以下几种：
#5)org.apache.log4j.HTMLLayout(以HTML表格形式布局)
#6)org.apache.log4j.PatternLayout(可以灵活地指定布局模式)
#7)org.apache.log4j.SimpleLayout(包含日志信息的级别和信息字符串)
#8)org.apache.log4j.TTCCLayout(包含日志产生的时间、线程、类别等等信息)
#9)org.apache.log4j.xml.XMLLayout(以XML形式布局)
#
#5)HTMLLayout选项属性
# -LocationInfo = TRUE:默认值false,输出java文件名称和行号
# -Title=Struts Log Message:默认值 Log4J Log Messages
#
#6)PatternLayout选项属性
# -ConversionPattern = %m%n:格式化指定的消息(参数意思下面有)
#
#9)XMLLayout选项属性
# -LocationInfo = TRUE:默认值false,输出java文件名称和行号
#
#Log4J采用类似C语言中的printf函数的打印格式格式化日志信息，打印参数如下：
# %m 输出代码中指定的消息
# %p 输出优先级，即DEBUG,INFO,WARN,ERROR,FATAL
# %r 输出自应用启动到输出该log信息耗费的毫秒数
# %c 输出所属的类目,通常就是所在类的全名
# %t 输出产生该日志事件的线程名
# %n 输出一个回车换行符，Windows平台为“
”，Unix平台为“
”
# %d 输出日志时间点的日期或时间，默认格式为ISO8601，也可以在其后指定格式
#    如：%d{yyyy年MM月dd日 HH:mm:ss,SSS}，输出类似：2012年01月05日 22:10:28,921
# %l 输出日志事件的发生位置，包括类目名、发生的线程，以及在代码中的行数
#    如：Testlog.main(TestLog.java:10)
# %F 输出日志消息产生时所在的文件名称
# %L 输出代码中的行号
# %x 输出和当前线程相关联的NDC(嵌套诊断环境),像java servlets多客户多线程的应用中
# %% 输出一个"%"字符
#
# 可以在%与模式字符之间加上修饰符来控制其最小宽度、最大宽度、和文本的对齐方式。如：
#  %5c: 输出category名称，最小宽度是5，category<5，默认的情况下右对齐
#  %-5c:输出category名称，最小宽度是5，category<5，"-"号指定左对齐,会有空格
#  %.5c:输出category名称，最大宽度是5，category>5，就会将左边多出的字符截掉，<5不会有空格
#  %20.30c:category名称<20补空格，并且右对齐，>30字符，就从左边交远销出的字符截掉
################################################################################
################################################################################
#④指定特定包的输出特定的级别
#log4j.logger.org.springframework=DEBUG
################################################################################

#OFF,systemOut,logFile,logDailyFile,logRollingFile,logMail,logDB,ALL
log4j.rootLogger =ALL,systemOut,logFile,logDailyFile,logRollingFile,logMail,logDB 

#输出到控制台
log4j.appender.systemOut = org.apache.log4j.ConsoleAppender 
log4j.appender.systemOut.layout = org.apache.log4j.PatternLayout 
log4j.appender.systemOut.layout.ConversionPattern = [%-5p][%-22d{yyyy/MM/dd HH:mm:ssS}][%l]%n%m%n 
log4j.appender.systemOut.Threshold = DEBUG 
log4j.appender.systemOut.ImmediateFlush = TRUE 
log4j.appender.systemOut.Target = System.out 

#输出到文件
log4j.appender.logFile = org.apache.log4j.FileAppender 
log4j.appender.logFile.layout = org.apache.log4j.PatternLayout 
log4j.appender.logFile.layout.ConversionPattern = [%-5p][%-22d{yyyy/MM/dd HH:mm:ssS}][%l]%n%m%n 
log4j.appender.logFile.Threshold = DEBUG 
log4j.appender.logFile.ImmediateFlush = TRUE 
log4j.appender.logFile.Append = TRUE 
log4j.appender.logFile.File = ../Struts2/WebRoot/log/File/log4j_Struts.log 
log4j.appender.logFile.Encoding = UTF-8 

#按DatePattern输出到文件
log4j.appender.logDailyFile = org.apache.log4j.DailyRollingFileAppender 
log4j.appender.logDailyFile.layout = org.apache.log4j.PatternLayout 
log4j.appender.logDailyFile.layout.ConversionPattern = [%-5p][%-22d{yyyy/MM/dd HH:mm:ssS}][%l]%n%m%n 
log4j.appender.logDailyFile.Threshold = DEBUG 
log4j.appender.logDailyFile.ImmediateFlush = TRUE 
log4j.appender.logDailyFile.Append = TRUE 
log4j.appender.logDailyFile.File = ../Struts2/WebRoot/log/DailyFile/log4j_Struts 
log4j.appender.logDailyFile.DatePattern = '.'yyyy-MM-dd-HH-mm'.log' 
log4j.appender.logDailyFile.Encoding = UTF-8 

#设定文件大小输出到文件
log4j.appender.logRollingFile = org.apache.log4j.RollingFileAppender 
log4j.appender.logRollingFile.layout = org.apache.log4j.PatternLayout 
log4j.appender.logRollingFile.layout.ConversionPattern = [%-5p][%-22d{yyyy/MM/dd HH:mm:ssS}][%l]%n%m%n 
log4j.appender.logRollingFile.Threshold = DEBUG 
log4j.appender.logRollingFile.ImmediateFlush = TRUE 
log4j.appender.logRollingFile.Append = TRUE 
log4j.appender.logRollingFile.File = ../Struts2/WebRoot/log/RollingFile/log4j_Struts.log 
log4j.appender.logRollingFile.MaxFileSize = 1MB 
log4j.appender.logRollingFile.MaxBackupIndex = 10 
log4j.appender.logRollingFile.Encoding = UTF-8 

#用Email发送日志
log4j.appender.logMail = org.apache.log4j.net.SMTPAppender 
log4j.appender.logMail.layout = org.apache.log4j.HTMLLayout 
log4j.appender.logMail.layout.LocationInfo = TRUE 
log4j.appender.logMail.layout.Title = Struts2 Mail LogFile 
log4j.appender.logMail.Threshold = DEBUG 
log4j.appender.logMail.SMTPDebug = FALSE 
log4j.appender.logMail.SMTPHost = SMTP.163.com 
log4j.appender.logMail.From = xly3000@163.com 
log4j.appender.logMail.To = xly3000@gmail.com 
#log4j.appender.logMail.Cc = xly3000@gmail.com
#log4j.appender.logMail.Bcc = xly3000@gmail.com
log4j.appender.logMail.SMTPUsername = xly3000 
log4j.appender.logMail.SMTPPassword = 1234567 
log4j.appender.logMail.Subject = Log4j Log Messages 
#log4j.appender.logMail.BufferSize = 1024
#log4j.appender.logMail.SMTPAuth = TRUE

#将日志登录到MySQL数据库
log4j.appender.logDB = org.apache.log4j.jdbc.JDBCAppender 
log4j.appender.logDB.layout = org.apache.log4j.PatternLayout 
log4j.appender.logDB.Driver = com.mysql.jdbc.Driver 
log4j.appender.logDB.URL = jdbc:mysql://127.0.0.1:3306/xly 
log4j.appender.logDB.User = root 
log4j.appender.logDB.Password = 123456 
log4j.appender.logDB.Sql = INSERT INTOT_log4j(project_name,create_date,level,category,file_name,thread_name,line,all_category,message)values('Struts2','%d{yyyy-MM-ddHH:mm:ss}','%p','%c','%F','%t','%L','%l','%m')

mybatis.xml文件为：

<?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>
        <!--配置日志实现-->
        <setting name="logImpl" value="STDOUT_LOGGING" />
        <!--一级缓存二级缓存-->
        <!--开启二级缓存-->
        <setting name="cacheEnabled" value="true"/>

    </settings>
    <!--mybatis分页插件-->
    <plugins>
        <plugin interceptor="com.github.pagehelper.PageInterceptor">
            <!--pageSize=0时，是否查询出全部结果，默认为false-->
            <property name="pageSizeZero" value="true" />
            <!--分页合理化参数，默认文false；pageNum<=0，查询第一页；pageNum>总页数，查询最后一页-->
            <property name="reasonable" value="true" />
            <property name="params"
                      value="pageNum=pageHelperStart;pageSize=pageHelperRows;" />
            <property name="supportMethodsArguments" value="false" />
            <property name="returnPageInfo" value="none" />
        </plugin>
    </plugins>
</configuration>

springmvc.xml文件为：

<?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"
       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 http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd">

    <!--开启注解驱动-->
    <mvc:annotation-driven></mvc:annotation-driven>
    <!--配置扫描包-->
    <context:component-scan
            base-package="controller"/>
    <!--配置视图解析器-->
    <!--<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">-->
        <!--&lt;!&ndash;配置视图的前缀&ndash;&gt;-->
        <!--<property name="prefix" value="/WEB-INF/pages" />-->
        <!--&lt;!&ndash;配置视图后缀&ndash;&gt;-->
        <!--<property name="suffix" value=".jsp" />-->
    <!--</bean>-->

    <!--配置文件上传-->
    <bean id="multipartResolver"
     class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
        <!--设置文件编码格式-->
        <property name="defaultEncoding" value="UTF-8"/>
        <!--设置最大上传大小-->
        <property name="maxUploadSize" value="10240000" />
    </bean>
    <!--开启默认servlet,用以处理静态资源文件-->
    <mvc:default-servlet-handler/>
   

    <!--配置注解式AOP支持-->
   <!-- <aop:aspectj-autoproxy ></aop:aspectj-autoproxy>

    <aop:aspectj-autoproxy proxy-target-class="true"/>-->

<!--    &lt;!&ndash;设置启用shiro注解&ndash;&gt;
    <aop:config proxy-target-class="true"></aop:config>

    &lt;!&ndash;配置shiro 权限拦截器&ndash;&gt;
    <bean class="org.apache.shiro.spring.security.interceptor.AuthorizationAttributeSourceAdvisor">
        <property name="securityManager" ref="securityManager"></property>
    </bean>-->

<!--
    &lt;!&ndash;配置springmvc异常处理机制&ndash;&gt;
    <bean class="org.springframework.web.servlet.handler.SimpleMappingExceptionResolver">
        &lt;!&ndash;异常映射规则&ndash;&gt;
        <property name="exceptionMappings">
            <props >
                &lt;!&ndash;key指定异常类&ndash;&gt;
                <prop key="org.apache.shiro.authz.UnauthorizedException">
                    nopermission.jsp
                </prop>
            </props>
        </property>
    </bean>-->

</beans>

三、 写Cotroller service dao 页面，进行增删改查操作；

ClassService.java文件为：

package service;

import entity.Class;

import java.util.List;
import java.util.Map;

public interface ClassService {
    //查询所有数据
    List<Class> findByMap(Map<String,Object> map);
    //删除数据
    int delete(Integer id);
    //通过id查找数据
    Class selectById(Integer id);
    //修改数据，增加数据
    int saveOrUpdate(Class classes);
}

ClassServiceImpl.java文件为：

package service;

import entity.Class;
import jdk.internal.dynalink.support.ClassMap;
import mapper.ClassMapper;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;
import java.util.Map;

@Service
public class ClassServiceImpl implements ClassService{
    @Autowired
    private ClassMapper classMapper;
    @Override
    public List<Class> findByMap(Map<String, Object> map) {
        List<Class> classes=classMapper.selectByMap(map);
        return classes;
    }

    @Override
    public int delete(Integer id) {
        int i=classMapper.delete(id);
        return i;
    }

    @Override
    public Class selectById(Integer id) {
        Class classes=classMapper.selectById(id);
        return classes;
    }

    @Override
    public int saveOrUpdate(Class classes) {
        //通过判断是否存在id，如果存在id，则进行修改操作，不存在id，则进行增加操作；
        if (null==classes.getId()){
            return classMapper.insert(classes);
        }
        return classMapper.update(classes);
    }


}

ClassMapper.java文件为：

package mapper;

import entity.Class;

import java.util.List;
import java.util.Map;

public interface ClassMapper {

    List<Class> selectByMap(Map<String, Object> map);

    int delete(Integer id);

    Class selectById(Integer id);

    int insert(Class classes);

    int update(Class classes);
}

ClassMapper.xml文件为：

<?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="mapper.ClassMapper">
    <insert id="insert">
        insert into h_class (id,name,city) values (seq_t_class.nextval,#{name},#{city})
    </insert>
    <update id="update" parameterType="entity.Class">
        update h_class set name =#{name},city=#{city} where id=#{id}
    </update>
    <delete id="delete">
        delete from h_class where id=#{id}
    </delete>

    <select id="selectByMap" resultType="entity.Class">
       select * from h_class
       <where>
           <if test="name!=null and name!=''">
               <bind name="nameLike" value="'%'+name+'%'"></bind>
               name like #{nameLike}
           </if>
           <if test="city!=null and city!=''">
               and city=#{city}
           </if>
       </where>
    </select>
    <select id="selectById" resultType="entity.Class">
        select * from h_class where id=#{id}
    </select>

</mapper>

list.jsp文件为：

<%@ page contentType="text/html;charset=UTF-8" language="java" isELIgnored="false" %>
<html>
<head>
    <title>用户列表页面</title>
</head>
<body>
<form action="${pageContext.request.contextPath}/user/list">
    名字：<input type="text" name="name"/><br/>
    城市：<input type="text" name="city"/><br/>
    <input type="submit" value="查找"/>
</form>
<a href="${pageContext.request.contextPath}/user/toadd">新增</a>
 <table border="1px">
     <thead>
       <tr>
           <td>ID</td>
           <td>名字</td>
           <td>城市</td>
           <td>操作</td>
       </tr>
     </thead>
     <tbody>
     <c:forEach var="classe" items="${classes}">
       <tr>
           <td>${classe.id}</td>
           <td>${classe.name}</td>
           <td>${classe.city}</td>
           <td>
               <a href="${pageContext.request.contextPath}/user/delete?id=${classe.id}">删除</a>
               <a href="${pageContext.request.contextPath}/user/update?id=${classe.id}">修改</a>
           </td>
       </tr>
     </c:forEach>
     </tbody>
 </table>
</form>
</body>
</html>

add.jsp文件为：

<%@ page contentType="text/html;charset=UTF-8" language="java" isELIgnored="false" %>
<html>
<head>
    <title>增加页面</title>
</head>
<body>
<form action="${pageContext.request.contextPath}/user/add" method="post">
    名字：<input type="text" name="name"/><br/>
    城市：<input type="text" name="city"/><br/>
    <input type="submit" value="增加"/>
</form>
</body>
</html>

update.jsp文件为：

<%@ page contentType="text/html;charset=UTF-8" language="java" isELIgnored="false" %>
<html>
<head>
    <title>修改页面</title>
</head>
<body>
<form action="${pageContext.request.contextPath}/user/save" method="post">
    <input type="hidden" name="id" value="${classes.id}"/>
    名字：<input type="text" name="name" value="${classes.name}"><br/>
    城市：<input type="text" name="city" value="${classes.city}"><br/>
    <input type="submit" value="修改"/>
</form>
</body>
</html>

最后,通过控制层调用service层方法；

AdminController文件为：

package controller;

import entity.Class;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import service.ClassService;

import java.util.HashMap;
import java.util.List;

@Controller
@RequestMapping("/user")
public class AdminController {
    @Autowired
    private ClassService classService;
    @RequestMapping("/list")
    public String list(ModelMap modelMap, @RequestParam HashMap<String,Object> map){
        List<Class> classes = classService.findByMap(map);
        modelMap.put("classes",classes);
        return "list.jsp";
    }
    @RequestMapping("/delete")
    public String delete(Integer id){
        classService.delete(id);
        return "redirect:list";
    }
    @RequestMapping("/update")
    public String update(Integer id,ModelMap modelMap){
        Class classes=classService.selectById(id);
        modelMap.put("classes",classes);
        return "update.jsp";
    }
    @RequestMapping("/save")
    public String saveOrUpdate(Class classes){
        int i=classService.saveOrUpdate(classes);
        return "redirect:list";
    }
    @RequestMapping("/add")
    public String add(Class classes){
        classService.saveOrUpdate(classes);
        return "redirect:list";
    }
    @RequestMapping("/toadd")
    public String toadd(){
        return "add.jsp";
    }

}

浏览器页面效果为：