详细注释的SSM框架整合笔记（一）

详细注释的SSM框架整合笔记（一）

前言

  接触SSM框架到现在也有很长时间了，之前也搭建过几个简单的项目，但是没有进行过记录学习和搭建的过程。网上关于ssm框架整合的资料也不少，不过说句实话，单看某一篇文章能够不踩坑的配置并跑起来的也不太多，在学习过程中筛选甄别这些就浪费了相当一部分时间。

本文内容

  本文理论+实践的方式，分享ssm的相关概念以及采用实践操作的方式搭建整套系统。把搭建过程中踩过的坑、笔记记录整理一下，用以和感兴趣的朋友分享下。

相关文章

• SSM框架整合笔记（二）Druid和Webservice配置
• SSM框架整合笔记（三）视图解析器Tiles、FreeMarker配置

demo下载地址

该项目持续更新中，会在代码以及该文档里面详细注释和介绍。
项目托管在码云开源平台上，链接：

https://gitee.com/nelucifer/ssm-note，点击克隆/下载获取该项目。

前置技能

• Maven
• IDEA
• Tomcat

环境

• Spring：4.2.5.RELEASE
• Spring MVC
• Mybatis：3.3.1
• MySQL：5.6
• IntelliJ IDEA： 2018.2.3
• cxf webservice： webservice接口
• pagehelper： 分页
• Interceptor：拦截器配置
• 数据结构：powerdesigner16.5

实践步骤

一、创建项目

1. 打开IDEA，选择New->Projects，按照下面的步骤选择：
   选择Maven，然后勾选Create from archetype，选择webapp这一个
   

2. 完成之后填入相应的maven项目组信息，GroupId是项目组织的标识符，对应java的包结构；ArtifactId是项目的标识符，对应项目的名称，即项目根目录的名称。groupId和artifactId统称为“坐标”。
   

3. 填写完成之后点击Next，选择setting.xml和repository路径，如下图：
   

4. 点击Finish后，maven会根据原型自动创建需要的一些配置信息以及目录结构，等待配置完成，初始项目结构如下：
   

5. 在main文件夹下创建文件夹java、resources，src文件夹下创建test，test文件夹下创建java文件夹；
   在java文件夹上右键 -> Mark Directory as，java文件夹选择Sources Root，resources文件夹上选择Resources Root，test文件夹下的java文件夹上选择Test Resources Root，
   操作如下：
   
   完成后的项目结构如下：
   

二、配置pom.xml和spring

详细的解释直接在代码里面注释了。开始贴代码：

1. pom.xml

<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>4.0.0modelVersion>
  
  <groupId>com.weyounggroupId>
  
  <artifactId>ssm-noteartifactId>
  <version>1.0-SNAPSHOTversion>
  
  <packaging>warpackaging>
  
  <name>ssm-note Maven Webappname>
  
  <url>http://www.example.comurl>
  
  <description>maven+ssm项目整合笔记description>

  
  <issueManagement>
    <system>jirasystem>
    
    <url>url>
  issueManagement>

  
  <developers>
    
    <developer>
      
      <id>coder_lixiaid>
      
      <name>lixianame>
      <email>[email protected]email>
      
      <url>http://www.wanglixia.top/url>
      
      <roles>
        <role>Project Managerrole>
      roles>
      
      <organization>organization>
      
      <organizationUrl>organizationUrl>
    developer>
  developers>

  
  <properties>
    <project.build.sourceEncoding>UTF-8project.build.sourceEncoding>
    <maven.compiler.source>1.7maven.compiler.source>
    <maven.compiler.target>1.7maven.compiler.target>

    <plugin.maven-compiler>3.1plugin.maven-compiler>
    <javac.target.version>1.8javac.target.version>
    
    <spring.version>4.2.5.RELEASEspring.version>
    <jstl.version>1.2jstl.version>
    <commons-logging.version>1.1.1commons-logging.version>
    <mybatis.version>3.3.1mybatis.version>
    <mybatis-spring.version>1.2.4mybatis-spring.version>
    <mysql-connector-java.version>5.1.26mysql-connector-java.version>
    <log4j.version>1.2.14log4j.version>
    <slf4j.log4j12.version>1.7.12slf4j.log4j12.version>
    <servlet-api.version>2.5servlet-api.version>
    <commons-io.version>2.4commons-io.version>
    <commons-fileupload.version>1.3commons-fileupload.version>
    <gson.version>2.2.2gson.version>
    <druid.version>1.0.25druid.version>
    <cxf.version>3.1.6cxf.version>
    <fastjson.version>1.2.32fastjson.version>
    <pagehelper.version>5.1.2pagehelper.version>
    <jackson.version>2.7.4jackson.version>
  properties>


  
  <repositories>
    
    <repository>
      
      <id>publicid>
      
      <name>aliyun nexusname>
      
      <url>http://maven.aliyun.com/nexus/content/groups/public/url>
      
      <releases>
        
        <enabled>trueenabled>
        
        <updatePolicy>neverupdatePolicy>
        
        <checksumPolicy>ignorechecksumPolicy>
      releases>
      <snapshots>
        <enabled>falseenabled>
        <updatePolicy>neverupdatePolicy>
        <checksumPolicy>ignorechecksumPolicy>
      snapshots>
      
      <layout>defaultlayout>
    repository>
  repositories>

  
  <pluginRepositories>
    
    <pluginRepository>
      <id>publicid>
      <name>aliyun nexusname>
      <url>http://maven.aliyun.com/nexus/content/groups/public/url>
      <releases>
        <enabled>trueenabled>
      releases>
      <snapshots>
        <enabled>falseenabled>
      snapshots>
    pluginRepository>
  pluginRepositories>

  
  <dependencies>
    <dependency>
      
      <groupId>junitgroupId>
      
      <artifactId>junitartifactId>
      
      <version>4.12version>
      
      <type>jartype>
      
      <scope>testscope>
      
      
      
      <optional>trueoptional>

      
      
    dependency>
    
    <dependency>
      <groupId>org.springframeworkgroupId>
      <artifactId>spring-aopartifactId>
      <version>${spring.version}version>
      <type>jartype>
      <scope>compilescope>
    dependency>
    <dependency>
      <groupId>org.springframeworkgroupId>
      <artifactId>spring-aspectsartifactId>
      <version>${spring.version}version>
      <type>jartype>
      <scope>compilescope>
    dependency>
    
    <dependency>
      <groupId>org.springframeworkgroupId>
      <artifactId>spring-beansartifactId>
      <version>${spring.version}version>
      <type>jartype>
      <scope>compilescope>
    dependency>
    <dependency>
      <groupId>org.springframeworkgroupId>
      <artifactId>spring-contextartifactId>
      <version>${spring.version}version>
      <type>jartype>
      <scope>compilescope>
    dependency>
    <dependency>
      <groupId>org.springframeworkgroupId>
      <artifactId>spring-context-supportartifactId>
      <version>${spring.version}version>
      <type>jartype>
      <scope>compilescope>
    dependency>
    <dependency>
      <groupId>org.springframeworkgroupId>
      <artifactId>spring-coreartifactId>
      <version>${spring.version}version>
      <exclusions>
        <exclusion>
          <groupId>commons-logginggroupId>
          <artifactId>commons-loggingartifactId>
        exclusion>
      exclusions>
      <type>jartype>
      <scope>compilescope>
    dependency>
    <dependency>
      <groupId>org.springframeworkgroupId>
      <artifactId>spring-expressionartifactId>
      <version>${spring.version}version>
      <type>jartype>
      <scope>compilescope>
    dependency>
    
    <dependency>
      <groupId>org.springframeworkgroupId>
      <artifactId>spring-jdbcartifactId>
      <version>${spring.version}version>
      <type>jartype>
      <scope>compilescope>
    dependency>
    <dependency>
      <groupId>org.springframeworkgroupId>
      <artifactId>spring-txartifactId>
      <version>${spring.version}version>
      <type>jartype>
      <scope>compilescope>
    dependency>
    <dependency>
      <groupId>org.springframeworkgroupId>
      <artifactId>spring-jmsartifactId>
      <version>${spring.version}version>
      <type>jartype>
      <scope>compilescope>
    dependency>
    <dependency>
      <groupId>org.springframeworkgroupId>
      <artifactId>spring-ormartifactId>
      <version>${spring.version}version>
      <type>jartype>
      <scope>compilescope>
    dependency>
    <dependency>
      <groupId>org.springframeworkgroupId>
      <artifactId>spring-oxmartifactId>
      <version>${spring.version}version>
      <type>jartype>
      <scope>compilescope>
    dependency>
    
    <dependency>
      <groupId>org.springframeworkgroupId>
      <artifactId>spring-webartifactId>
      <version>${spring.version}version>
      <type>jartype>
      <scope>compilescope>
    dependency>
    <dependency>
      <groupId>org.springframeworkgroupId>
      <artifactId>spring-webmvcartifactId>
      <version>${spring.version}version>
      <type>jartype>
      <scope>compilescope>
    dependency>
    
    <dependency>
      <groupId>org.springframeworkgroupId>
      <artifactId>spring-testartifactId>
      <version>${spring.version}version>
      <type>jartype>
      <scope>compilescope>
    dependency>

    <dependency>
      <groupId>commons-logginggroupId>
      <artifactId>commons-loggingartifactId>
      <version>${commons-logging.version}version>
    dependency>

    
    <dependency>
      <groupId>org.mybatisgroupId>
      <artifactId>mybatisartifactId>
      <version>${mybatis.version}version>
    dependency>
    
    <dependency>
      <groupId>org.mybatisgroupId>
      <artifactId>mybatis-springartifactId>
      <version>${mybatis-spring.version}version>
    dependency>
    
    <dependency>
      <groupId>mysqlgroupId>
      <artifactId>mysql-connector-javaartifactId>
      <version>${mysql-connector-java.version}version>
    dependency>
    
    <dependency>
      <groupId>com.alibabagroupId>
      <artifactId>druidartifactId>
      <version>${druid.version}version>
    dependency>
    
    <dependency>
      <groupId>log4jgroupId>
      <artifactId>log4jartifactId>
      <version>${log4j.version}version>
    dependency>
    <dependency>
      <groupId>org.slf4jgroupId>
      <artifactId>slf4j-log4j12artifactId>
      <version>${slf4j.log4j12.version}version>
    dependency>
    
    <dependency>
      <groupId>javax.servletgroupId>
      <artifactId>servlet-apiartifactId>
      <version>${servlet-api.version}version>
    dependency>
    <dependency>
      <groupId>javax.servletgroupId>
      <artifactId>jstlartifactId>
      <version>${jstl.version}version>
    dependency>
    
    <dependency>
      <groupId>commons-iogroupId>
      <artifactId>commons-ioartifactId>
      <version>${commons-io.version}version>
    dependency>
    <dependency>
      <groupId>commons-fileuploadgroupId>
      <artifactId>commons-fileuploadartifactId>
      <version>${commons-fileupload.version}version>
    dependency>
    
    <dependency>
      <groupId>com.google.code.gsongroupId>
      <artifactId>gsonartifactId>
      <version>${gson.version}version>
    dependency>

    <dependency>
      <groupId>com.fasterxml.jackson.coregroupId>
      <artifactId>jackson-coreartifactId>
      <version>${jackson.version}version>
    dependency>
    <dependency>
      <groupId>com.fasterxml.jackson.coregroupId>
      <artifactId>jackson-databindartifactId>
      <version>${jackson.version}version>
    dependency>

    <dependency>
      <groupId>com.fasterxml.jackson.coregroupId>
      <artifactId>jackson-annotationsartifactId>
      <version>${jackson.version}version>
    dependency>

    <dependency>
      <groupId>com.alibabagroupId>
      <artifactId>fastjsonartifactId>
      <version>${fastjson.version}version>
    dependency>

    
    <dependency>
      <groupId>com.github.pagehelpergroupId>
      <artifactId>pagehelperartifactId>
      <version>${pagehelper.version}version>
    dependency>

    
    <dependency>
      <groupId>org.apache.cxfgroupId>
      <artifactId>cxf-rt-frontend-jaxwsartifactId>
      <version>${cxf.version}version>
    dependency>
    <dependency>
      <groupId>org.apache.cxfgroupId>
      <artifactId>cxf-coreartifactId>
      <version>${cxf.version}version>
    dependency>
    <dependency>
      <groupId>org.apache.cxfgroupId>
      <artifactId>cxf-rt-transports-httpartifactId>
      <version>${cxf.version}version>
    dependency>
  dependencies>

  
  <build>
    
    <finalName>ssm-notefinalName>
    
    <pluginManagement>
      
      <plugins>
        <plugin>
          <artifactId>maven-clean-pluginartifactId>
          <version>3.1.0version>
        plugin>
        
        <plugin>
          <artifactId>maven-resources-pluginartifactId>
          <version>3.0.2version>
        plugin>
        <plugin>
          <artifactId>maven-compiler-pluginartifactId>
          <version>3.8.0version>
        plugin>
        <plugin>
          <artifactId>maven-surefire-pluginartifactId>
          <version>2.22.1version>
        plugin>
        <plugin>
          <artifactId>maven-war-pluginartifactId>
          <version>3.2.2version>
        plugin>
        <plugin>
          <artifactId>maven-install-pluginartifactId>
          <version>2.5.2version>
        plugin>
        <plugin>
          <artifactId>maven-deploy-pluginartifactId>
          <version>2.8.2version>
        plugin>
      plugins>
    pluginManagement>
  build>
project>

2. spring-config.xml

<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">

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

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

    
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="MySQLDataSource"/>
    bean>

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

    
    <bean id="dataSourceConfig" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
        <property name="location" value="classpath:config/jdbc.properties"/>
    bean>

    <bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping"/>
    
    <bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter">
        <property name="messageConverters">
            <list>
                <bean class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter"/>
            list>
        property>
    bean>

    
    <tx:advice id="txAdvice" transaction-manager="transactionManager">
        
        <tx:attributes>
            <tx:method name="insert*" propagation="REQUIRED"/>
            <tx:method name="update*" propagation="REQUIRED"/>
            <tx:method name="edit*" propagation="REQUIRED"/>
            <tx:method name="save*" propagation="REQUIRED"/>
            <tx:method name="add*" propagation="REQUIRED"/>
            <tx:method name="new*" propagation="REQUIRED"/>
            <tx:method name="set*" propagation="REQUIRED"/>
            <tx:method name="remove*" propagation="REQUIRED"/>
            <tx:method name="delete*" propagation="REQUIRED"/>
            <tx:method name="change*" propagation="REQUIRED"/>
            <tx:method name="get*" propagation="REQUIRED" read-only="true"/>
            <tx:method name="find*" propagation="REQUIRED" read-only="true"/>
            <tx:method name="load*" propagation="REQUIRED" read-only="true"/>
            <tx:method name="*" propagation="REQUIRED" read-only="true"/>
        tx:attributes>
    tx:advice>

    
    <aop:config>
        <aop:pointcut id="serviceOperation" expression="execution(* com.weyoung.service.*.*Impl.*(..))"/>
        <aop:advisor advice-ref="txAdvice" pointcut-ref="serviceOperation"/>
    aop:config>

    
    <bean id="MySQLDataSource" class="com.alibaba.druid.pool.DruidDataSource" init-method="init" destroy-method="close">
        <property name="driverClassName" value="${jdbc.mysql.driver}"/>
        <property name="url" value="${jdbc.mysql.url}"/>
        <property name="username" value="${jdbc.mysql.username}"/>
        <property name="password" value="${jdbc.mysql.password}"/>
        
        <property name="initialSize" value="${jdbc.initialSize}"/>
        <property name="minIdle" value="${jdbc.minIdle}"/>
        <property name="maxActive" value="${jdbc.maxActive}"/>

        
        <property name="maxWait" value="${jdbc.maxWait}"/>

        
        <property name="timeBetweenEvictionRunsMillis" value="${jdbc.timeBetweenEvictionRunsMillis}"/>

        <property name="testWhileIdle" value="${jdbc.testWhileIdle}"/>

        
        <property name="testOnBorrow" value="true" />
        <property name="testOnReturn" value="false" />

        
        <property name="poolPreparedStatements" value="true" />
        <property name="maxPoolPreparedStatementPerConnectionSize" value="20" />

        
        <property name="defaultAutoCommit" value="${jdbc.defaultAutoCommit}"/>

        
        
        <property name="filters" value="stat" />
        <property name="proxyFilters">
            <list>
                <ref bean="logFilter" />
            list>
        property>
    bean>

    <bean id="logFilter" class="com.alibaba.druid.filter.logging.Slf4jLogFilter">
        <property name="statementExecutableSqlLogEnable" value="false" />
    bean>

beans>

3. spring-mvc.xml

<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"
       xsi:schemaLocation="
       http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
       http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd
       http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd">

    
    <context:component-scan base-package="com.weyoung.controller"/>
    <context:annotation-config/>

    
    
    <mvc:annotation-driven>
        <mvc:message-converters>
            <ref bean="stringHttpMessageConverter"/>
        mvc:message-converters>
    mvc:annotation-driven>

    
    <mvc:resources mapping="/plugins/**" location="/plugins/"/>
    <mvc:resources mapping="/layouts/**" location="/layouts/"/>
    <mvc:resources mapping="/statics/**" location="/statics/"/>

    
    <mvc:interceptors>
        <mvc:interceptor>
            <mvc:mapping path="/**"/>
            <bean class="com.weyoung.system.LoginInterceptor">bean>
        mvc:interceptor>
    mvc:interceptors>

    
    <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
        
        <property name="defaultEncoding" value="UTF-8"/>
        
        <property name="maxUploadSize" value="10485760000"/>
        
        <property name="maxInMemorySize" value="40960"/>
    bean>

    
    <bean id="exceptionResolver" class="org.springframework.web.servlet.handler.SimpleMappingExceptionResolver">
        <property name="exceptionMappings">
            <props>
                <prop key="org.springframework.web.multipart.MaxUploadSizeExceededException">/error/upload_error.jsp
                prop>
            props>
        property>
    bean>

    
    <bean id="beanNameViewResolver" class="org.springframework.web.servlet.view.BeanNameViewResolver">
        <property name="order" value="1">property>
    bean>
    
    <bean class="org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping"/>
    
    <bean class="org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter"/>

    <bean id="contentNegotiationManager"
          class="org.springframework.web.accept.ContentNegotiationManagerFactoryBean">
        <property name="favorParameter" value="false"/>
        <property name="parameterName" value="format"/>
        <property name="ignoreAcceptHeader" value="true"/>
        <property name="mediaTypes">
            <value>
                json=application/json
                xml=application/xml
            value>
        property>
        <property name="defaultContentType" value="text/html"/>
    bean>

    
    <bean id="stringHttpMessageConverter" class="org.springframework.http.converter.StringHttpMessageConverter">
        <constructor-arg value="UTF-8" index="0"/>
        <property name="supportedMediaTypes">
            <list>
                <value>text/plain;charset=UTF-8value>
            list>
        property>
    bean>

    
    <bean id="viewResolver"
          class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/>
        <property name="prefix" value="/front-end/"/>
        <property name="suffix" value=".jsp"/>
        <property name="order" value="1"/>
    bean>

    <bean class="org.springframework.web.servlet.view.ContentNegotiatingViewResolver">
        <property name="contentNegotiationManager" ref="contentNegotiationManager"/>
        <property name="defaultViews">
            <bean class="org.springframework.web.servlet.view.json.MappingJackson2JsonView"/>
        property>
    bean>
beans>

4. jdbc.properties

#============================================================================
# MySQL
#============================================================================
jdbc.mysql.driver=com.mysql.jdbc.Driver
jdbc.mysql.url=jdbc:mysql://localhost:3306/SSM_NOTE?useUnicode=true&characterEncoding=utf8
jdbc.mysql.username=root
jdbc.mysql.password=lucifer

#============================================================================
# common settings
#============================================================================
jdbc.initialSize=5
jdbc.minIdle=5
jdbc.maxActive=100
jdbc.maxWait=100000
jdbc.defaultAutoCommit=false
jdbc.removeAbandoned=true
jdbc.removeAbandonedTimeout=600
jdbc.testWhileIdle=true
jdbc.timeBetweenEvictionRunsMillis=60000
jdbc.minEvictableIdleTimeMillis=300000

5. log4j.properties

# 定义输出风格
ConversionPattern=%d %-5p [%t] %c - %m%n

# 配置根Logger
## 日志输出级别
log4j.rootLogger=debug,Console,D
log4j.logger.com.cnblogs.lzrabbit=DEBUG
log4j.logger.org.springframework=ERROR
log4j.logger.org.mybatis=DEBUG
log4j.logger.org.apache.ibatis=DEBUG
log4j.logger.org.quartz=ERROR
log4j.logger.org.apache.axis2=ERROR
log4j.logger.org.apache.axiom=ERROR
log4j.logger.org.apache=ERROR
log4j.logger.httpclient=ERROR
#log4j.additivity.org.springframework=false

# ==========输出到控制台==========
log4j.appender.Console=org.apache.log4j.ConsoleAppender
log4j.appender.Console.Target=System.out
# Layout：日志输出格式
# org.apache.log4j.PatternLayout：可以灵活地指定布局模式
# org.apache.log4j.HTMLLayout：以HTML表格形式布局
# org.apache.log4j.SimpleLayout：包含日志信息的级别和信息字符串
# org.apache.log4j.TTCCLayout：包含日志产生的时间、线程、类别等等信息
log4j.appender.Console.layout=org.apache.log4j.PatternLayout
log4j.appender.Console.layout.ConversionPattern=${ConversionPattern}
#log4j.appender.Console.encoding=UTF-8

# ==========输出到日志文件==========
# Appender为日志输出目的地，Log4j提供的appender有以下几种：
# org.apache.log4j.ConsoleAppender（控制台），
# org.apache.log4j.FileAppender（文件），
# org.apache.log4j.DailyRollingFileAppender（每天产生一个日志文件），
# 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），
# org.apache.log4j.WriterAppender（将日志信息以流格式发送到任意指定的地方）
log4j.appender.D=org.apache.log4j.DailyRollingFileAppender
log4j.appender.D.DatePattern='.'yyyy-MM-dd'.log'
log4j.appender.D.File=logs/ssm-note.log
log4j.appender.D.Append=true
## 输出日志级别
log4j.appender.D.Threshold=DEBUG
log4j.appender.D.layout=org.apache.log4j.PatternLayout
log4j.appender.D.encoding=UTF-8

# ==========输出异常信息日志文件==========
log4j.appender.E=org.apache.log4j.DailyRollingFileAppender
log4j.appender.E.DatePattern='.'yyyy-MM-dd'.log'
log4j.appender.E.File=logs/daily.log
log4j.appender.E.Append=true
log4j.appender.E.Threshold=ERROR
log4j.appender.E.layout=org.apache.log4j.PatternLayout
log4j.appender.E.encoding=UTF-8
log4j.appender.D.layout.ConversionPattern = %-d{yyyy-MM-dd HH:mm:ss}  [%t:%r]-[%p]  %m%n

# 打印参数
#    %c 输出日志信息所属的类的全名
#    %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，比如：%d{yyy-MM-dd HH:mm:ss}，
#      输出类似：2019-2-21 01:38:37
#    %f 输出日志信息所属的类的类名
#    %l 输出日志事件的发生位置，即输出日志信息的的语句处于它所在的类的第几行
#    %m 输出代码中指定的信息，如log(message)中的message
#    %n 输出一个回车换行符，Windows平台为"rn",Unix平台为"n"
#    %p 输出优先级，即DEBUG.INFO,WARN,ERROR,FATAL.如果是调用debug()输出的，则为DEBUG,以此类推
#    %r 输出自应用启动到输出该日志信息所耗费的毫秒数
#    %t 输出产生该日志的线程名

6. 其他

登录业务实现代码：LoginController.java，LoginDao.java，User.java，LoginService.java，LoginServiceImpl.java，LoginMapper.xml.xml的具体实现请下载源码。

三、数据结构

1. 登录表结构

2. 登录表语句

drop database if exists ssm_note;
create database ssm_note;
use ssm_note;

/*==============================================================*/
/* DBMS name:      MySQL 5.0                                    */
/* Created on:     2019/2/22 1:09:58                            */
/*==============================================================*/


drop table if exists USER_LOGIN;

/*==============================================================*/
/* Table: USER_LOGIN                                            */
/*==============================================================*/
create table USER_LOGIN
(
   id                   int not null,
   USER_NAME            varchar(30) not null,
   PASSWORD             varchar(20) not null,
   REG_TIME             datetime not null default CURRENT_TIMESTAMP,
   primary key (id)
);

项目预览

一、登录页：

二、欢迎页：

资料推荐

• Spring文档：https://spring.io/docs

• 史上最全的maven的pom.xml文件详解：https://www.cnblogs.com/hafiz/p/5360195.html

• Spring 实战（第四版） [美]Craig Walls 著 张卫滨 译

• Spring MVC 和 Spring 总结：https://www.cnblogs.com/doudouxiaoye/p/5693399.html

• Mybatis 官方文档：http://www.mybatis.org/mybatis-3/zh/index.html

概念整理

1. Spring

  创建Spring的主要目的是用来替代更加重量级的企业级Java技术，尤其是EJB。Spring提供了更加轻量级和简单的编程模型。增强了简单老式Java对象（Plain Old Java Object，POJO）的功能。

为了降低Java开发的复杂性，Spring采取了以下四种关键策略：

• 基于POJO（Plain Old Java Object）的轻量级和最小侵入性编程；
• 通过依赖注入和面向接口实现松耦合；
• 基于切面和管理进行声明式编程；
• 通过切面和模板减少样板式代码。

2. Spring MVC

  Spring MVC基于模型-视图-控制器（Model-View-Controller，MVC）模式实现，能够构建像Spring框架那样灵活和松耦合的Web应用程序。Spring MVC是一个基于mvc的web框架。Spring MVC是Spring框架的一个模块，Spring MVC和Spring无需通过中间整合层进行整合。

3. Mybatis

  Mybatis是一款优秀的持久层框架，支持定制化SQL、存储过程以及高级映射。可以使用简单的XML或注解来配置和映射原生信息，将接口和Java的Pojo映射成数据库中的记录。

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