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spring教程

发布日期: 2021-04-05

作者: 欧阳思海

文章字数: 5.6k

阅读时长: 28 分

阅读次数:

本人花费半年的时间总结的《Java面试指南》已拿腾讯等大厂offer，已开源在github ，欢迎star！

本文GitHub https://github.com/OUYANGSIHAI/JavaInterview 已收录，这是我花了6个月总结的一线大厂Java面试总结，本人已拿大厂offer，欢迎star

原文链接：blog.ouyangsihai.cn >> 使用IntelliJ IDEA 搭建SSM框架教程

1.基本概念

SSM框架指：Spring MVC + Spring + MyBatis

Spring MVC是一种web层mvc框架，用于替代servlet，处理|响应请求，获取表单参数，表单校验等

Spring是一个轻量级的控制反转（IoC）和面向切面（AOP）的容器框架。

MyBatis 是一款优秀的持久层框架，它支持定制化 SQL、存储过程以及高级映射。MyBatis 避免了几乎所有的 JDBC 代码和手动设置参数以及获取结果集。MyBatis 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 POJOs(Plain Ordinary Java Object,普通的 Java对象)映射成数据库中的记录。 (摘自百度百科)。

2.开发环境

安装java jdk，MySQL，IntelliJ IDEA，Tomcat，Maven

这是我电脑上的java和MySQL版本

Tomcat 我用的

IntelliJ IDEA我用的

Maven我用的3.6.0

3.搭建SSM框架

打开IntelliJ IDEA，选择 File》Project》New Project ,左侧栏选择 Maven ，右侧Project SDK 会是默认的java，选择Create from archetype，选择下图中的2

点击上图Next，进入下图，GroupId和ArtifactId是Maven项目的坐标，保证项目的唯一性。如果项目上传到了maven本地仓库去，必须根据这两个id去查找项目。

GroupId 一般分为多段，这里只说两段，第一段为域，第二段为公司名称。域包括：org、com、cn等，其中org为非营利组织，com为商业组织。

ArtifactId实际对应项目的名称，就是项目根目录的名称。这样说起来比较抽象，下面举例说明：

例如下图中：GroupId是cn.only,它的域是cn（因为cn表示中国），个人项目所以为only，ArtifactId是helloworld。 GroupId实际对应JAVA的包的结构，是main目录里java的目录结构。ArtifactId实际对应项目的名称。

点击上图Next，进入下图，选择本地Maven的位置，我的Maven版本是3.6.0

点击上图Next，进入下图，选择项目的存放地址，如下图，注意Project location中一定要有项目名字，项目名称默认

点击上图Finish，IntelliJ IDEA右下角弹窗如下图：

点击Enable Auto-Import，以后更改pom文件后就会自动下载依赖包了，所以点击Enable Auto-Import。

等待几分钟，项目正在下载相关依赖包，下载完毕以后，项目的目录结构如下图：

.idea:IntelliJ IDEA 在本项目中的配置，可以删掉，删掉后打开项目要重新配置。

src:存放项目代码

pom.xml:maven的配置文件，需要什么jar包，在里面添加依赖，maven会自动下到本地仓库。

现在构建SSM项目结构：

在src下建test文件夹，用来放测试文件，在test文件夹下建java和resources文件夹：

选择test的下的java文件夹，鼠标右键选择Mark Directory as》Test Sources Root

选择test的下的resources文件夹，鼠标右键选择Mark Directory as》Test Resources Root

在main文件夹下建java和resources文件夹：

选择main的下的java文件夹，鼠标右键选择Mark Directory as》Sources Root

选择main的下的resources文件夹，鼠标右键选择Mark Directory as》Resources Root

在src》main》java文件夹下建package，鼠标选择java文件夹，右键选择New》Package，建Package，名字就是上面GroupId，为cn.only

在cn.only下建4个Package：controller：用来放前台url映射文件，dao用来放与数据库的接口文件，entity用来放实体类文件，service用来放自己定义的接口

鼠标选择java，右键选择New》Package，建Package，名字为cn.only.controller，controller Package添加成功如下图

继续鼠标选择java，右键选择New》Package，建Package，名字为cn.only.dao，dao Package添加成功如下图

entity和service的添加方法一样如上，名字为cn.only.entity和cn.only.service，添加成功，如下图

src》main》resources下添加两个文件夹： spring和sqlmap，spring下添加spring的配置文件applicationContext.xml

src》main》resources下再添加四个配置文件：generator.properties ,generatorConfig.xml ,jdbc.properties 和 log4j.properties

generator.properties和generatorConfig.xml ：用来配置mybatis

jdbc.properties ：配置数据库相关信息

log4j.properties：配置日志

resources的目录结构如下图：

src》main》webapp下新建文件夹：js ，css，images 用来存放前端资源

src》main》webapp》WEB-INF下新建views文件夹，jsp页面放在这里。

webapp 的目录结构如下图：

整个项目的目录已经构建好，如下图：

下面开始配置项目

根目录下的pom.xml：POM是项目对象模型(Project Object Model)的简称,它是Maven项目中的文件，使用XML表示，名称叫做pom.xml。该文件用于管理：源代码、配置文件、开发者的信息和角色、问题追踪系统、组织信息、项目授权、项目的url、项目的依赖关系等。在Maven中，project可以什么都没有，甚至没有代码，但是必须包含pom.xml文件。

打开pom.xml,会发现已经默认有一些配置了，下面是我的pom.xml配置文件：

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?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"  modelVersion4.0.0/modelVersion   groupIdcn.only/groupId  artifactIdhelloworld/artifactId  version1.0-SNAPSHOT/version  packagingwar/packaging   namehelloworld Maven Webapp/name  !-- FIXME change it to the project's website --  urlhttp://www.example.com/url   properties    project.build.sourceEncodingUTF-8/project.build.sourceEncoding    maven.compiler.source1.7/maven.compiler.source    maven.compiler.target1.7/maven.compiler.target    !-- spring版本号 --    spring.version4.2.5.RELEASE/spring.version    !-- mybatis版本号 --    mybatis.version3.2.4/mybatis.version    !-- log4j日志文件管理包版本 --    slf4j.version1.6.6/slf4j.version    log4j.version1.2.12/log4j.version  /properties   dependencies    dependency      groupIdjunit/groupId      artifactIdjunit/artifactId      version4.11/version      scopetest/scope    /dependency    !-- spring核心包 --    !-- springframe start --    dependency      groupIdorg.springframework/groupId      artifactIdspring-core/artifactId      version${spring.version}/version    /dependency     dependency      groupIdorg.springframework/groupId      artifactIdspring-web/artifactId      version${spring.version}/version    /dependency     dependency      groupIdorg.springframework/groupId      artifactIdspring-oxm/artifactId      version${spring.version}/version    /dependency     dependency      groupIdorg.springframework/groupId      artifactIdspring-tx/artifactId      version${spring.version}/version    /dependency     dependency      groupIdorg.springframework/groupId      artifactIdspring-jdbc/artifactId      version${spring.version}/version    /dependency     dependency      groupIdorg.springframework/groupId      artifactIdspring-webmvc/artifactId      version${spring.version}/version    /dependency     dependency      groupIdorg.springframework/groupId      artifactIdspring-aop/artifactId      version${spring.version}/version    /dependency     dependency      groupIdorg.springframework/groupId      artifactIdspring-context-support/artifactId      version${spring.version}/version    /dependency     dependency      groupIdorg.springframework/groupId      artifactIdspring-test/artifactId      version${spring.version}/version    /dependency    !-- springframe end --     !-- mybatis核心包 --    dependency      groupIdorg.mybatis/groupId      artifactIdmybatis/artifactId      version${mybatis.version}/version    /dependency    !-- mybatis/spring包 --    dependency      groupIdorg.mybatis/groupId      artifactIdmybatis-spring/artifactId      version1.2.2/version    /dependency    !-- mysql驱动包 --    dependency      groupIdmysql/groupId      artifactIdmysql-connector-java/artifactId      version5.0.8/version    /dependency     !-- jstl --    dependency      groupIdjavax.servlet/groupId      artifactIdjstl/artifactId      version1.2/version    /dependency    dependency      groupIdjavax.servlet.jsp/groupId      artifactIdjsp-api/artifactId      version2.2.1-b03/version      scopeprovided/scope    /dependency     !-- servlet --    dependency      groupIdjavax.servlet/groupId      artifactIdservlet-api/artifactId      version2.5/version      scopeprovided/scope    /dependency    !-- json数据 --    dependency      groupIdcom.fasterxml.jackson.core/groupId      artifactIdjackson-core/artifactId      version2.7.1/version    /dependency    dependency      groupIdcom.fasterxml.jackson.core/groupId      artifactIdjackson-annotations/artifactId      version2.7.1/version    /dependency    dependency      groupIdcom.fasterxml.jackson.core/groupId      artifactIdjackson-databind/artifactId      version2.7.1/version    /dependency    dependency      groupIdnet.sf.json-lib/groupId      artifactIdjson-lib/artifactId      version2.4/version      classifierjdk15/classifier    /dependency    !-- commons --    dependency      groupIdcommons-lang/groupId      artifactIdcommons-lang/artifactId      version2.4/version    /dependency    dependency      groupIdcommons-logging/groupId      artifactIdcommons-logging/artifactId      version1.1/version    /dependency    dependency      groupIdcommons-pool/groupId      artifactIdcommons-pool/artifactId      version1.5.6/version    /dependency    dependency      groupIdcommons-dbcp/groupId      artifactIdcommons-dbcp/artifactId      version1.4/version    /dependency    dependency      groupIdcommons-beanutils/groupId      artifactIdcommons-beanutils/artifactId      version1.8.3/version    /dependency    dependency      groupIdcommons-httpclient/groupId      artifactIdcommons-httpclient/artifactId      version3.1/version    /dependency    dependency      groupIdcommons-collections/groupId      artifactIdcommons-collections/artifactId      version3.1/version    /dependency    dependency      groupIdcommons-codec/groupId      artifactIdcommons-codec/artifactId      version1.9/version    /dependency    dependency      groupIdjavax.annotation/groupId      artifactIdjsr250-api/artifactId      version1.0/version    /dependency     dependency      groupIdnet.sf.ezmorph/groupId      artifactIdezmorph/artifactId      version1.0.6/version    /dependency    dependency      groupIdjavax.activation/groupId      artifactIdactivation/artifactId      version1.1/version    /dependency    dependency      groupIdtaglibs/groupId      artifactIdstandard/artifactId      version1.1.2/version    /dependency    !-- 日志文件管理包 --    !-- log start --    dependency      groupIdlog4j/groupId      artifactIdlog4j/artifactId      version${log4j.version}/version    /dependency    dependency      groupIdorg.slf4j/groupId      artifactIdslf4j-api/artifactId      version${slf4j.version}/version    /dependency    dependency      groupIdorg.slf4j/groupId      artifactIdslf4j-log4j12/artifactId      version${slf4j.version}/version    /dependency    !--上传--    dependency      groupIdcommons-fileupload/groupId      artifactIdcommons-fileupload/artifactId      version1.3.1/version    /dependency    dependency      groupIdcommons-io/groupId      artifactIdcommons-io/artifactId      version2.4/version    /dependency    !-- log end --  /dependencies   build    finalNamehello/finalName    pluginManagement!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) --      plugins        plugin          artifactIdmaven-clean-plugin/artifactId          version3.1.0/version        /plugin        !-- see http://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_war_packaging --        plugin          artifactIdmaven-resources-plugin/artifactId          version3.0.2/version        /plugin        plugin          artifactIdmaven-compiler-plugin/artifactId          version3.8.0/version        /plugin        plugin          artifactIdmaven-surefire-plugin/artifactId          version2.22.1/version        /plugin        plugin          artifactIdmaven-war-plugin/artifactId          version3.2.2/version        /plugin        plugin          artifactIdmaven-install-plugin/artifactId          version2.5.2/version        /plugin        plugin          artifactIdmaven-deploy-plugin/artifactId          version2.8.2/version        /plugin      /plugins    /pluginManagement    plugins      !-- mybatis-generator --      plugin        groupIdorg.mybatis.generator/groupId        artifactIdmybatis-generator-maven-plugin/artifactId        version1.3.2/version        configuration          !-- mybatis-generator的配置文件，根据情况调整位置 --          configurationFilesrc/main/resources/generatorConfig.xml/configurationFile          verbosetrue/verbose          overwritetrue/overwrite        /configuration        executions          execution            idGenerate MyBatis Artifacts/id            goals              goalgenerate/goal            /goals          /execution        /executions        dependencies          dependency            groupIdorg.mybatis.generator/groupId            artifactIdmybatis-generator-core/artifactId            version1.3.2/version          /dependency        /dependencies      /plugin    /plugins  /build/project

?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"
modelVersion4.0.0/modelVersion

groupIdcn.only/groupId
artifactIdhelloworld/artifactId
version1.0-SNAPSHOT/version
packagingwar/packaging

namehelloworld Maven Webapp/name
!– FIXME change it to the project’s website –
urlhttp://www.example.com/url

properties
project.build.sourceEncodingUTF-8/project.build.sourceEncoding
maven.compiler.source1.7/maven.compiler.source
maven.compiler.target1.7/maven.compiler.target
!– spring版本号 –
spring.version4.2.5.RELEASE/spring.version
!– mybatis版本号 –
mybatis.version3.2.4/mybatis.version
!– log4j日志文件管理包版本 –
slf4j.version1.6.6/slf4j.version
log4j.version1.2.12/log4j.version
/properties

dependencies
dependency
groupIdjunit/groupId
artifactIdjunit/artifactId
version4.11/version
scopetest/scope
/dependency
!– spring核心包 –
!– springframe start –
dependency
groupIdorg.springframework/groupId
artifactIdspring-core/artifactId
version${spring.version}/version
/dependency


dependency
  groupIdorg.springframework/groupId
  artifactIdspring-web/artifactId
  version${spring.version}/version
/dependency

dependency
  groupIdorg.springframework/groupId
  artifactIdspring-oxm/artifactId
  version${spring.version}/version
/dependency

dependency
  groupIdorg.springframework/groupId
  artifactIdspring-tx/artifactId
  version${spring.version}/version
/dependency

dependency
  groupIdorg.springframework/groupId
  artifactIdspring-jdbc/artifactId
  version${spring.version}/version
/dependency

dependency
  groupIdorg.springframework/groupId
  artifactIdspring-webmvc/artifactId
  version${spring.version}/version
/dependency

dependency
  groupIdorg.springframework/groupId
  artifactIdspring-aop/artifactId
  version${spring.version}/version
/dependency

dependency
  groupIdorg.springframework/groupId
  artifactIdspring-context-support/artifactId
  version${spring.version}/version
/dependency

dependency
  groupIdorg.springframework/groupId
  artifactIdspring-test/artifactId
  version${spring.version}/version
/dependency
!-- springframe end --

!-- mybatis核心包 --
dependency
  groupIdorg.mybatis/groupId
  artifactIdmybatis/artifactId
  version${mybatis.version}/version
/dependency
!-- mybatis/spring包 --
dependency
  groupIdorg.mybatis/groupId
  artifactIdmybatis-spring/artifactId
  version1.2.2/version
/dependency
!-- mysql驱动包 --
dependency
  groupIdmysql/groupId
  artifactIdmysql-connector-java/artifactId
  version5.0.8/version
/dependency

!-- jstl --
dependency
  groupIdjavax.servlet/groupId
  artifactIdjstl/artifactId
  version1.2/version
/dependency
dependency
  groupIdjavax.servlet.jsp/groupId
  artifactIdjsp-api/artifactId
  version2.2.1-b03/version
  scopeprovided/scope
/dependency

!-- servlet --
dependency
  groupIdjavax.servlet/groupId
  artifactIdservlet-api/artifactId
  version2.5/version
  scopeprovided/scope
/dependency
!-- json数据 --
dependency
  groupIdcom.fasterxml.jackson.core/groupId
  artifactIdjackson-core/artifactId
  version2.7.1/version
/dependency
dependency
  groupIdcom.fasterxml.jackson.core/groupId
  artifactIdjackson-annotations/artifactId
  version2.7.1/version
/dependency
dependency
  groupIdcom.fasterxml.jackson.core/groupId
  artifactIdjackson-databind/artifactId
  version2.7.1/version
/dependency
dependency
  groupIdnet.sf.json-lib/groupId
  artifactIdjson-lib/artifactId
  version2.4/version
  classifierjdk15/classifier
/dependency
!-- commons --
dependency
  groupIdcommons-lang/groupId
  artifactIdcommons-lang/artifactId
  version2.4/version
/dependency
dependency
  groupIdcommons-logging/groupId
  artifactIdcommons-logging/artifactId
  version1.1/version
/dependency
dependency
  groupIdcommons-pool/groupId
  artifactIdcommons-pool/artifactId
  version1.5.6/version
/dependency
dependency
  groupIdcommons-dbcp/groupId
  artifactIdcommons-dbcp/artifactId
  version1.4/version
/dependency
dependency
  groupIdcommons-beanutils/groupId
  artifactIdcommons-beanutils/artifactId
  version1.8.3/version
/dependency
dependency
  groupIdcommons-httpclient/groupId
  artifactIdcommons-httpclient/artifactId
  version3.1/version
/dependency
dependency
  groupIdcommons-collections/groupId
  artifactIdcommons-collections/artifactId
  version3.1/version
/dependency
dependency
  groupIdcommons-codec/groupId
  artifactIdcommons-codec/artifactId
  version1.9/version
/dependency
dependency
  groupIdjavax.annotation/groupId
  artifactIdjsr250-api/artifactId
  version1.0/version
/dependency

dependency
  groupIdnet.sf.ezmorph/groupId
  artifactIdezmorph/artifactId
  version1.0.6/version
/dependency
dependency
  groupIdjavax.activation/groupId
  artifactIdactivation/artifactId
  version1.1/version
/dependency
dependency
  groupIdtaglibs/groupId
  artifactIdstandard/artifactId
  version1.1.2/version
/dependency
!-- 日志文件管理包 --
!-- log start --
dependency
  groupIdlog4j/groupId
  artifactIdlog4j/artifactId
  version${log4j.version}/version
/dependency
dependency
  groupIdorg.slf4j/groupId
  artifactIdslf4j-api/artifactId
  version${slf4j.version}/version
/dependency
dependency
  groupIdorg.slf4j/groupId
  artifactIdslf4j-log4j12/artifactId
  version${slf4j.version}/version
/dependency
!--上传--
dependency
  groupIdcommons-fileupload/groupId
  artifactIdcommons-fileupload/artifactId
  version1.3.1/version
/dependency
dependency
  groupIdcommons-io/groupId
  artifactIdcommons-io/artifactId
  version2.4/version
/dependency
!-- log end --

/dependencies

build
finalNamehello/finalName
pluginManagement!– lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) –
plugins
plugin
artifactIdmaven-clean-plugin/artifactId
version3.1.0/version
/plugin
!– see http://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_war_packaging –
plugin
artifactIdmaven-resources-plugin/artifactId
version3.0.2/version
/plugin
plugin
artifactIdmaven-compiler-plugin/artifactId
version3.8.0/version
/plugin
plugin
artifactIdmaven-surefire-plugin/artifactId
version2.22.1/version
/plugin
plugin
artifactIdmaven-war-plugin/artifactId
version3.2.2/version
/plugin
plugin
artifactIdmaven-install-plugin/artifactId
version2.5.2/version
/plugin
plugin
artifactIdmaven-deploy-plugin/artifactId
version2.8.2/version
/plugin
/plugins
/pluginManagement
plugins
!– mybatis-generator –
plugin
groupIdorg.mybatis.generator/groupId
artifactIdmybatis-generator-maven-plugin/artifactId
version1.3.2/version
configuration
!– mybatis-generator的配置文件，根据情况调整位置 –
configurationFilesrc/main/resources/generatorConfig.xml/configurationFile
verbosetrue/verbose
overwritetrue/overwrite
/configuration
executions
execution
idGenerate MyBatis Artifacts/id
goals
goalgenerate/goal
/goals
/execution
/executions
dependencies
dependency
groupIdorg.mybatis.generator/groupId
artifactIdmybatis-generator-core/artifactId
version1.3.2/version
/dependency
/dependencies
/plugin
/plugins
/build
/project

配置applicationContext.xml，我的配置如下：

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?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:beans="http://www.springframework.org/schema/beans"       xmlns:mvc="http://www.springframework.org/schema/mvc"       xsi:schemaLocation="http://www.springframework.org/schema/beans         http://www.springframework.org/schema/beans/spring-beans-4.3.xsd         http://www.springframework.org/schema/context         http://www.springframework.org/schema/context/spring-context-4.3.xsd         http://www.springframework.org/schema/mvc         http://www.springframework.org/schema/mvc/spring-mvc-4.3.xsd"       !-- ①：对com.springmvc包中的所有类进行扫描，以完成Bean创建和自动依赖注入的功能 --    context:component-scan base-package="com.springmvc"/    mvc:annotation-driven /    !-- 静态资源访问 --    !--如果webapp下你新建了文件夹，想访问里面的静态资源，那么就要在这配置一下--    mvc:resources location="/images/" mapping="/images/**"/    mvc:resources location="/css/" mapping="/css/**"/    mvc:resources location="/js/" mapping="/js/**"/     !-- Configures the @Controller programming model    mvc:annotation-driven /--    !-- ②：启动Spring MVC的注解功能，完成请求和注解POJO的映射 --    bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter"        property name="messageConverters"            list                ref bean="mappingJacksonHttpMessageConverter"/            /list        /property    /bean     bean id="mappingJacksonHttpMessageConverter" class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter"        property name="supportedMediaTypes"            list                valueapplication/json;charset=UTF-8/value            /list        /property    /bean         !-- 配置视图解析器，把控制器的逻辑视频映射为真正的视图 --    !-- /WEB-INF/jsp/start.jsp --    bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"        property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/        property name="prefix" value="/WEB-INF/views/" /        property name="suffix" value=".jsp" /    /bean        !-- 配置dbcp数据库连接池 --     !-- context:property-placeholder location="classpath:db.properties"/ --    !--数据库配置 --    bean id = "propertyConfigurer" class = "org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"        property name="locations"            list                valueclasspath:jdbc.properties/value            /list        /property     /bean     !-- 数据库连接池 --    bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close"        property name="driverClassName" value="${jdbc.driver}"/        property name="url" value="${jdbc.url}"/        property name="username" value="${username}"/        property name="password" value="shiotc123"/        property name="initialSize" value="1"/        property name="maxActive" value="100"/        property name="maxIdle" value="5"/        property name="maxWait" value="80000"/    /bean     !-- 配置事务管理器 --    bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"        property name="dataSource" ref="dataSource" /    /bean     !-- 拦截器 --    mvc:interceptors        !-- 国际化操作拦截器 如果采用基于（请求/Session/Cookie）则必需配置 --        bean class="org.springframework.web.servlet.i18n.LocaleChangeInterceptor" /    /mvc:interceptors    !-- 定义无Controller的path-view直接映射 --    !-- mvc:view-controller path="/" view-name="redirect:/" / -- /beans


!-- ①：对com.springmvc包中的所有类进行扫描，以完成Bean创建和自动依赖注入的功能 --
context:component-scan base-package="com.springmvc"/
mvc:annotation-driven /
!-- 静态资源访问 --
!--如果webapp下你新建了文件夹，想访问里面的静态资源，那么就要在这配置一下--
mvc:resources location="/images/" mapping="/images/**"/
mvc:resources location="/css/" mapping="/css/**"/
mvc:resources location="/js/" mapping="/js/**"/

!-- Configures the @Controller programming model
mvc:annotation-driven /--
!-- ②：启动Spring MVC的注解功能，完成请求和注解POJO的映射 --
bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter"
    property name="messageConverters"
        list
            ref bean="mappingJacksonHttpMessageConverter"/
        /list
    /property
/bean

bean id="mappingJacksonHttpMessageConverter" class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter"
    property name="supportedMediaTypes"
        list
            valueapplication/json;charset=UTF-8/value
        /list
    /property
/bean





!-- 配置视图解析器，把控制器的逻辑视频映射为真正的视图 --
!-- /WEB-INF/jsp/start.jsp --
bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"
    property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/
    property name="prefix" value="/WEB-INF/views/" /
    property name="suffix" value=".jsp" /
/bean




!-- 配置dbcp数据库连接池 --

!-- context:property-placeholder location="classpath:db.properties"/ --
!--数据库配置 --
bean id = "propertyConfigurer" class = "org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"
    property name="locations"
        list
            valueclasspath:jdbc.properties/value
        /list
    /property

/bean

!-- 数据库连接池 --
bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close"
    property name="driverClassName" value="${jdbc.driver}"/
    property name="url" value="${jdbc.url}"/
    property name="username" value="${username}"/
    property name="password" value="shiotc123"/
    property name="initialSize" value="1"/
    property name="maxActive" value="100"/
    property name="maxIdle" value="5"/
    property name="maxWait" value="80000"/
/bean

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

!-- 拦截器 --
mvc:interceptors
    !-- 国际化操作拦截器 如果采用基于（请求/Session/Cookie）则必需配置 --
    bean class="org.springframework.web.servlet.i18n.LocaleChangeInterceptor" /
/mvc:interceptors
!-- 定义无Controller的path-view直接映射 --
!-- mvc:view-controller path="/" view-name="redirect:/" / --

/beans

配置jdbc.properties

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jdbc.driver=com.mysql.jdbc.Driver#test为我本地的数据库名jdbc.url=jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=utf-8&serverTimezone=UTCusername=root#下面输入自己数据库的密码password=*****#定义初始连接数initialSize=0#定义最大连接数maxActive=20#定义最大空闲maxIdle=20#定义最小空闲minIdle=1#定义最长等待时间maxWait=60000

jdbc.driver=com.mysql.jdbc.Driver
#test为我本地的数据库名
jdbc.url=jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=utf-8&serverTimezone=UTC
username=root
#下面输入自己数据库的密码
password=*****
#定义初始连接数
initialSize=0
#定义最大连接数
maxActive=20
#定义最大空闲
maxIdle=20
#定义最小空闲
minIdle=1
#定义最长等待时间
maxWait=60000

配置log4j.properties

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### set log levels ###log4j.rootLogger = INFO,D ###输出到控制台###log4j.logger.toConsole=debug,stdoutlog4j.appender.stdout = org.apache.log4j.ConsoleAppenderlog4j.appender.stdout.Target = System.outlog4j.appender.stdout.layout = org.apache.log4j.PatternLayout  log4j.appender.stdout.layout.ConversionPattern =%d{yyyy-MM-dd HH\:mm\:ss} [%5p] - %c -%F(%L) -%m%n ### 输出到日志文件 #####  其中File 可以采用绝对路径 亦可以采用相对路径 catalina.home 是tomcat目录  如果没有logs文件夹 将会报错  ####  更加倾向于将日志文件放在  tomcat的日志目录下${catalina.home}/logs/salesmanb2bError.log ####  绝对路径如：e:/salesmanb2bError.log ##log4j.logger.daily=INFO,Dlog4j.appender.D = org.apache.log4j.DailyRollingFileAppenderlog4j.appender.D.File = ${catalina.home}/logs/helloworld/helloworld.loglog4j.appender.D.Append = truelog4j.appender.D.Threshold = INFOlog4j.appender.D.layout = org.apache.log4j.PatternLayoutlog4j.appender.D.layout.ConversionPattern =%d{yyyy-MM-dd HH\:mm\:ss} [%5p] - %c -%F(%L) -%m%n  ##log4j.logger.org.apache.ibatis=debug,stdout##log4j.logger.java.sql=debug,stdout

set log levels

log4j.rootLogger = INFO,D

###输出到控制台###
log4j.logger.toConsole=debug,stdout
log4j.appender.stdout = org.apache.log4j.ConsoleAppender
log4j.appender.stdout.Target = System.out
log4j.appender.stdout.layout = org.apache.log4j.PatternLayout

log4j.appender.stdout.layout.ConversionPattern =%d{yyyy-MM-dd HH:mm:ss} [%5p] - %c -%F(%L) -%m%n

输出到日志文件

其中File 可以采用绝对路径亦可以采用相对路径 catalina.home 是tomcat目录如果没有logs文件夹将会报错

更加倾向于将日志文件放在 tomcat的日志目录下${catalina.home}/logs/salesmanb2bError.log

绝对路径如：e:/salesmanb2bError.log

log4j.logger.daily=INFO,D
log4j.appender.D = org.apache.log4j.DailyRollingFileAppender
log4j.appender.D.File = ${catalina.home}/logs/helloworld/helloworld.log
log4j.appender.D.Append = true
log4j.appender.D.Threshold = INFO
log4j.appender.D.layout = org.apache.log4j.PatternLayout
log4j.appender.D.layout.ConversionPattern =%d{yyyy-MM-dd HH:mm:ss} [%5p] - %c -%F(%L) -%m%n

##log4j.logger.org.apache.ibatis=debug,stdout
##log4j.logger.java.sql=debug,stdout

配置web.xml

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?xml version="1.0" encoding="UTF-8"?web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" version="3.0"  display-namehelloworld/display-name  !-- 配置编码方式--  filter    filter-nameencodingFilter/filter-name    filter-classorg.springframework.web.filter.CharacterEncodingFilter/filter-class    init-param      param-nameencoding/param-name      param-valueUTF-8/param-value    /init-param    init-param      param-nameforceEncoding/param-name      param-valuetrue/param-value    /init-param  /filter  filter-mapping    filter-nameencodingFilter/filter-name    url-pattern/*/url-pattern  /filter-mapping    !-- 配置springmvc的前端控制器 指向spring-mvc.xml 程序在启动的时候就加载springmvc 可以接受所有请求 load-on-startup：表示启动容器时初始化该Servlet； --  servlet    servlet-namespringServlet/servlet-name    servlet-classorg.springframework.web.servlet.DispatcherServlet/servlet-class    !-- 可以自定义servlet.xml配置文件的位置和名称， 默认为WEB-INF目录下，名称为[servlet-name]-servlet.xml，如spring-servlet.xml --    init-param      param-namecontextConfigLocation/param-name      param-value classpath:spring/applicationContext.xml/param-value    /init-param    load-on-startup1/load-on-startup  /servlet  !-- 将前端URL请求和后台处理方法controller建立对应关系--  servlet-mapping    servlet-namespringServlet/servlet-name    url-pattern//url-pattern  /servlet-mapping   !-- Spring配置 --  listener    listener-class      org.springframework.web.context.ContextLoaderListener    /listener-class  /listener  !-- 取消对某一类文件的拦截--  servlet-mapping    servlet-namedefault/servlet-name    url-pattern*.md/url-pattern  /servlet-mapping   context-param    param-namecontextConfigLocation/param-name    param-value classpath:spring/applicationContext.xml/param-value  /context-param  !-- 欢迎页面--  welcome-file-list    welcome-file/WEB-INF/index.jsp/welcome-file  /welcome-file-list  !--404错误展示页面，可自行配置--  !--error-page--  !--error-code404/error-code--  !--location/WEB-INF/views/404.jsp/location--  !--/error-page--  !--设置session失效时间为30分钟 --  session-config    session-timeout600/session-timeout  /session-config/web-app

?xml version=”1.0” encoding=”UTF-8”?
web-app xmlns:xsi=”http://www.w3.org/2001/XMLSchema-instance" xmlns=”http://java.sun.com/xml/ns/javaee" xsi:schemaLocation=”http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" version=”3.0”
display-namehelloworld/display-name
!– 配置编码方式–
filter
filter-nameencodingFilter/filter-name
filter-classorg.springframework.web.filter.CharacterEncodingFilter/filter-class
init-param
param-nameencoding/param-name
param-valueUTF-8/param-value
/init-param
init-param
param-nameforceEncoding/param-name
param-valuetrue/param-value
/init-param
/filter
filter-mapping
filter-nameencodingFilter/filter-name
url-pattern/*/url-pattern
/filter-mapping

!– 配置springmvc的前端控制器指向spring-mvc.xml 程序在启动的时候就加载springmvc 可以接受所有请求 load-on-startup：表示启动容器时初始化该Servlet； –
servlet
servlet-namespringServlet/servlet-name
servlet-classorg.springframework.web.servlet.DispatcherServlet/servlet-class
!– 可以自定义servlet.xml配置文件的位置和名称，默认为WEB-INF目录下，名称为[servlet-name]-servlet.xml，如spring-servlet.xml –
init-param
param-namecontextConfigLocation/param-name
param-value classpath:spring/applicationContext.xml/param-value
/init-param
load-on-startup1/load-on-startup
/servlet
!– 将前端URL请求和后台处理方法controller建立对应关系–
servlet-mapping
servlet-namespringServlet/servlet-name
url-pattern//url-pattern
/servlet-mapping

!– Spring配置 –
listener
listener-class
org.springframework.web.context.ContextLoaderListener
/listener-class
/listener
!– 取消对某一类文件的拦截–
servlet-mapping
servlet-namedefault/servlet-name
url-pattern*.md/url-pattern
/servlet-mapping

context-param
param-namecontextConfigLocation/param-name
param-value classpath:spring/applicationContext.xml/param-value
/context-param
!– 欢迎页面–
welcome-file-list
welcome-file/WEB-INF/index.jsp/welcome-file
/welcome-file-list
!–404错误展示页面，可自行配置–
!–error-page–
!–error-code404/error-code–
!–location/WEB-INF/views/404.jsp/location–
!–/error-page–
!–设置session失效时间为30分钟 –
session-config
session-timeout600/session-timeout
/session-config
/web-app

最后配置Tomcat，配置好Tomcat代码就可以跑起来了。选择Add Configuration…》弹出配置窗口，如下图

点击上图红框中的+，选择Tomcat Server》Local，弹出窗口，如下图，

配置Application server，在上图中选择红框中的configure…,弹出窗口如下图，选择Tomcat的安装路径，配置好Tomcat。

配置Deployment，如下图，

上图中，点击+，选择Artifact…，弹窗如下图，

上图中选择红框中内容，点击OK，如下图：

点击上图OK，Tomcat配置完毕。

如上图，点击绿色三角形，运行程序。

运行结果如下：

程序正常启动，spring mvc已经搭建好，下一篇文章配置mybatis-geneator，这是一款mybatis自动代码生成工具。

原文始发于：https://www.cnblogs.com/greenteaone/p/11078108.html

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原文链接：blog.ouyangsihai.cn >> 使用IntelliJ IDEA 搭建SSM框架教程