這里使用 Maven 項目管理工具構(gòu)建項目

初始化項目 打開 Intellij IDEA，點擊 Create New Project 選擇 Maven 構(gòu)建項目 選擇 JDK 版本

選擇 maven-archetype-webapp 模板（Java Web 項目）

填寫項目在 Maven 倉庫中的坐標(biāo)（在 Maven 倉庫中根據(jù)這個坐標(biāo)才能找到該項目）

選擇 Maven 路徑 選擇 Maven 配置文件路徑 選擇 Maven 本地倉庫路徑

填寫項目名 選擇工作目錄

創(chuàng)建目錄

在 src > main 目錄下分別新建 java 源碼目錄 和 resource 配置文件目錄

java 目錄下創(chuàng)建基本的源碼目錄結(jié)構(gòu)

webapp 目錄下創(chuàng)建 static 目錄，用于存放靜態(tài)資源文件（css, js, img 等）

webapp > WEB-INF 目錄下創(chuàng)建 views 目錄，用于存放視圖頁面（jsp, html 等）

pom.xml

完整的 pom.xml 配置如下

<?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.antoniopeng</groupId> <artifactId>ssm-example</artifactId> <version>1.0-SNAPSHOT</version> <packaging>war</packaging> <name>hello-ssm Maven Webapp</name> <!-- FIXME change it to the project’s website --> <url>https://antoniopeng.com</url> <properties> <!-- 環(huán)境配置 --> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> <java.version>1.8</java.version> <!-- 統(tǒng)一的依賴管理 --> <alibaba-druid.version>1.1.6</alibaba-druid.version> <apache-httpclient.version>4.5.5</apache-httpclient.version> <commons-email.version>1.5</commons-email.version> <commons-fileupload.version>1.3.2</commons-fileupload.version> <commons-lang3.version>3.5</commons-lang3.version> <hibernate-validator.version>5.3.4.Final</hibernate-validator.version> <jackson.version>2.9.5</jackson.version> <jstl.version>1.2</jstl.version> <junit.version>4.12</junit.version> <kaptcha.version>2.3</kaptcha.version> <log4j.version>1.2.17</log4j.version> <lombok.version>1.16.18</lombok.version> <mybaits-spring.version>1.3.1</mybaits-spring.version> <mybatis.version>3.2.8</mybatis.version> <mysql.version>5.1.46</mysql.version> <servlet-api.version>3.1.0</servlet-api.version> <slf4j.version>1.7.25</slf4j.version> <spring.version>4.3.17.RELEASE</spring.version> </properties> <dependencies> <!-- Test Begin --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-test</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>${junit.version}</version> </dependency> <!-- Test Begin --> <!-- Spring Begin --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-aspects</artifactId> <version>${spring.version}</version> </dependency> <!-- Spring End --> <!-- Servlet Begin --> <dependency> <groupId>javax.servlet</groupId> <artifactId>javax.servlet-api</artifactId> <version>${servlet-api.version}</version> <scope>provided</scope> </dependency> <dependency> <groupId>javax.servlet</groupId> <artifactId>jstl</artifactId> <version>${jstl.version}</version> </dependency> <!-- Servlet End --> <!-- Log Begin --> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-api</artifactId> <version>${slf4j.version}</version> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-log4j12</artifactId> <version>${slf4j.version}</version> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>jcl-over-slf4j</artifactId> <version>${slf4j.version}</version> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>jul-to-slf4j</artifactId> <version>${slf4j.version}</version> </dependency> <dependency> <groupId>log4j</groupId> <artifactId>log4j</artifactId> <version>${log4j.version}</version> </dependency> <!-- Log End --> <!-- Commons Begin --> <dependency> <groupId>org.apache.commons</groupId> <artifactId>commons-lang3</artifactId> <version>${commons-lang3.version}</version> </dependency> <dependency> <groupId>commons-fileupload</groupId> <artifactId>commons-fileupload</artifactId> <version>${commons-fileupload.version}</version> </dependency> <dependency> <groupId>org.apache.commons</groupId> <artifactId>commons-email</artifactId> <version>${commons-email.version}</version> </dependency> <!-- Commons End --> <!-- Database Begin --> <dependency> <groupId>com.alibaba</groupId> <artifactId>druid</artifactId> <version>${alibaba-druid.version}</version> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>${mysql.version}</version> </dependency> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis</artifactId> <version>${mybatis.version}</version> </dependency> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis-spring</artifactId> <version>${mybaits-spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jdbc</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-validator</artifactId> <version>${hibernate-validator.version}</version> </dependency> <!-- Database End --> <!-- Json Begin --> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-core</artifactId> <version>${jackson.version}</version> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-databind</artifactId> <version>${jackson.version}</version> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-annotations</artifactId> <version>${jackson.version}</version> </dependency> <!-- Json End --> <!-- Apache Http Begin --> <dependency> <groupId>org.apache.httpcomponents</groupId> <artifactId>httpclient</artifactId> <version>${apache-httpclient.version}</version> </dependency> <dependency> <groupId>org.apache.httpcomponents</groupId> <artifactId>fluent-hc</artifactId> <version>${apache-httpclient.version}</version> </dependency> <dependency> <groupId>org.apache.httpcomponents</groupId> <artifactId>httpmime</artifactId> <version>${apache-httpclient.version}</version> </dependency> <!-- Apache Http End --> <dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> <version>${lombok.version}</version> </dependency> </dependencies> <build> <pluginManagement> <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-install-plugin</artifactId> <version>2.5.2</version> </plugin> </plugins> </pluginManagement> <plugins> <!-- Compiler 插件, 設(shè)定 JDK 版本 --> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <version>3.7.0</version> <configuration> <source>${java.version}</source> <target>${java.version}</target> <encoding>${project.build.sourceEncoding}</encoding> <showWarnings>true</showWarnings> </configuration> </plugin> </plugins> <!-- 資源文件配置 --> <resources> <resource> <directory>src/main/java</directory> <excludes> <exclude>**/*.java</exclude> </excludes> </resource> <resource> <directory>src/main/resources</directory> </resource> </resources> </build></project>全局配置文件

resources 目錄下創(chuàng)建全局配置文件，供后續(xù)調(diào)用

# JDBCjdbc.driverClass=com.mysql.jdbc.Driverjdbc.connectionURL=jdbc:mysql://localhost:3306/ssm?useUnicode=true&characterEncoding=utf-8&useSSL=falsejdbc.username=rootjdbc.password=123456# JDBC Pooljdbc.pool.init=1jdbc.pool.minIdle=3jdbc.pool.maxActive=20# Web View Locationweb.view.prefix=/WEB-INF/views/web.view.suffix=.jsp# Upload Sizeweb.maxUploadSize=10485760Spring 核心配置

resources 目錄下創(chuàng)建 spring-context.xml

<?xml version='1.0' encoding='UTF-8'?><beans xmlns='http://www.springframework.org/schema/beans' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns:context='http://www.springframework.org/schema/context' xmlns:tx='http://www.springframework.org/schema/tx' xsi:schemaLocation='http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd'> <!-- 開啟 Spring 相關(guān)注解 --> <context:annotation-config /> <!-- 使用 Annotation 自動注冊 Bean, 并且只掃描 @Controller --> <context:component-scan base-package='com.antoniopeng.hello.ssm'> <context:exclude-filter type='annotation' expression='org.springframework.stereotype.Controller' /> </context:component-scan> <!-- 配置事務(wù)管理器 --> <bean class='org.springframework.jdbc.datasource.DataSourceTransactionManager'> <property name='dataSource' ref='dataSource'/> </bean> <!-- 開啟事務(wù)注解驅(qū)動 --> <tx:annotation-driven transaction-manager='transactionManager'/></beans>整合 Spring MVC

創(chuàng)建 spring-mvc.xml

<?xml version='1.0' encoding='UTF-8'?><beans xmlns='http://www.springframework.org/schema/beans' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns:context='http://www.springframework.org/schema/context' xmlns:mvc='http://www.springframework.org/schema/mvc' 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/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd'> <!-- 加載配置屬性文件 --> <context:property-placeholder ignore-unresolvable='true' location='classpath:ssm.properties'/> <!-- 使用 Annotation 自動注冊 Bean,只掃描 @Controller --> <context:component-scan base-package='com.antoniopeng.hello.ssm.controller' use-default-filters='false'> <context:include-filter type='annotation' expression='org.springframework.stereotype.Controller'/> </context:component-scan> <!-- 默認(rèn)的注解映射的支持 --> <mvc:annotation-driven /> <!-- 定義視圖文件解析 --> <bean class='org.springframework.web.servlet.view.InternalResourceViewResolver'> <property name='prefix' value='${web.view.prefix}'/> <property name='suffix' value='${web.view.suffix}'/> </bean> <!-- 靜態(tài)資源映射 --> <mvc:resources mapping='/static/**' location='/static/' cache-period='31536000'/> <!-- 攔截器配置 --> <mvc:interceptors> <!-- 攔截登錄 --> <mvc:interceptor> <mvc:mapping path='/**'/> <mvc:exclude-mapping path='/login' /> <mvc:exclude-mapping path='/static/**' /> <bean /> </mvc:interceptor> </mvc:interceptors> <!-- 上傳文件攔截，設(shè)置最大上傳文件大小 10M = 10*1024*1024(B) = 10485760 bytes --> <bean class='org.springframework.web.multipart.commons.CommonsMultipartResolver'> <property name='maxUploadSize' value='${web.maxUploadSize}'/> </bean></beans>MyBatis 配置

創(chuàng)建 mybatis-config.xml

<?xml version='1.0' encoding='UTF-8'?><!DOCTYPE configuration PUBLIC '-//mybatis.org//DTD Config 3.0//EN' 'http://mybatis.org/dtd/mybatis-3-config.dtd'><configuration> <!-- 全局參數(shù) --> <settings> <!-- 打印 SQL 語句 --> <setting name='logImpl' value='STDOUT_LOGGING' /> <!-- 使全局的映射器啟用或禁用緩存。 --> <setting name='cacheEnabled' value='false'/> <!-- 全局啟用或禁用延遲加載。當(dāng)禁用時，所有關(guān)聯(lián)對象都會即時加載。 --> <setting name='lazyLoadingEnabled' value='true'/> <!-- 當(dāng)啟用時，有延遲加載屬性的對象在被調(diào)用時將會完全加載任意屬性。否則，每種屬性將會按需要加載。 --> <setting name='aggressiveLazyLoading' value='true'/> <!-- 是否允許單條 SQL 返回多個數(shù)據(jù)集 (取決于驅(qū)動的兼容性) default:true --> <setting name='multipleResultSetsEnabled' value='true'/> <!-- 是否可以使用列的別名 (取決于驅(qū)動的兼容性) default:true --> <setting name='useColumnLabel' value='true'/> <!-- 允許 JDBC 生成主鍵。需要驅(qū)動器支持。如果設(shè)為了 true，這個設(shè)置將強(qiáng)制使用被生成的主鍵，有一些驅(qū)動器不兼容不過仍然可以執(zhí)行。 default:false --> <setting name='useGeneratedKeys' value='false'/> <!-- 指定 MyBatis 如何自動映射 數(shù)據(jù)基表的列 NONE：不映射 PARTIAL：部分 FULL:全部 --> <setting name='autoMappingBehavior' value='PARTIAL'/> <!-- 這是默認(rèn)的執(zhí)行類型 （SIMPLE: 簡單； REUSE: 執(zhí)行器可能重復(fù)使用prepared statements語句；BATCH: 執(zhí)行器可以重復(fù)執(zhí)行語句和批量更新） --> <setting name='defaultExecutorType' value='SIMPLE'/> <!-- 使用駝峰命名法轉(zhuǎn)換字段。 --> <setting name='mapUnderscoreToCamelCase' value='true'/> <!-- 設(shè)置本地緩存范圍 session:就會有數(shù)據(jù)的共享 statement:語句范圍 (這樣就不會有數(shù)據(jù)的共享 ) defalut:session --> <setting name='localCacheScope' value='SESSION'/> <!-- 設(shè)置 JDBC 類型為空時,某些驅(qū)動程序 要指定值, default:OTHER，插入空值時不需要指定類型 --> <setting name='jdbcTypeForNull' value='NULL'/> </settings></configuration>整合 Druid

resources 目錄下創(chuàng)建 spring-context-druid.xml

<?xml version='1.0' encoding='UTF-8'?><beans xmlns='http://www.springframework.org/schema/beans' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns:context='http://www.springframework.org/schema/context' 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'> <!-- 加載配置屬性文件 --> <context:property-placeholder ignore-unresolvable='true' location='classpath:ssm.properties'/> <!-- 數(shù)據(jù)源配置, 使用 Druid 數(shù)據(jù)庫連接池 --> <bean init-method='init' destroy-method='close'> <!-- 數(shù)據(jù)源驅(qū)動類可不寫，Druid默認(rèn)會自動根據(jù)URL識別DriverClass --> <property name='driverClassName' value='${jdbc.driverClass}'/> <!-- 基本屬性 url、user、password --> <property name='url' value='${jdbc.connectionURL}'/> <property name='username' value='${jdbc.username}'/> <property name='password' value='${jdbc.password}'/> <!-- 配置初始化大小、最小、最大 --> <property name='initialSize' value='${jdbc.pool.init}'/> <property name='minIdle' value='${jdbc.pool.minIdle}'/> <property name='maxActive' value='${jdbc.pool.maxActive}'/> <!-- 配置獲取連接等待超時的時間 --> <property name='maxWait' value='60000'/> <!-- 配置間隔多久才進(jìn)行一次檢測，檢測需要關(guān)閉的空閑連接，單位是毫秒 --> <property name='timeBetweenEvictionRunsMillis' value='60000'/> <!-- 配置一個連接在池中最小生存的時間，單位是毫秒 --> <property name='minEvictableIdleTimeMillis' value='300000'/> <!-- 配置監(jiān)控統(tǒng)計攔截的filters --> <property name='filters' value='stat'/> </bean></beans>整合 MyBatis

resources 目錄下創(chuàng)建 spring-context-mybatis.xml

<?xml version='1.0' encoding='UTF-8'?><beans xmlns='http://www.springframework.org/schema/beans' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xsi:schemaLocation='http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd'> <!-- 配置 SqlSession --> <bean class='org.mybatis.spring.SqlSessionFactoryBean'> <property name='dataSource' ref='dataSource'/> <!-- 用于配置對應(yīng)實體類所在的包，多個 package 之間可以用 ’,’ 號分割 --> <property name='typeAliasesPackage' value='com.antoniopeng.hello.ssm.entity'/> <!-- 用于配置對象關(guān)系映射配置文件所在目錄 --> <property name='mapperLocations' value='classpath*:/mapper/**/*.xml'/> <property name='configLocation' value='classpath:/mybatis-config.xml'></property> </bean> <!-- 掃描 Mapper --> <bean class='org.mybatis.spring.mapper.MapperScannerConfigurer'> <property name='basePackage' value='com.antoniopeng.hello.ssm.dao' /> </bean></beans>日志配置

創(chuàng)建 log4j.properties 日志配置文件

log4j.rootLogger=error, stdoutlog4j.appender.stdout=org.apache.log4j.ConsoleAppender log4j.appender.stdout.layout=org.apache.log4j.PatternLayout log4j.appender.stdout.layout.ConversionPattern=[service] %d - %c -%-4r [%t] %-5p %c %x - %m%n log4j.logger.com.ibatis = debug log4j.logger.com.ibatis.common.jdbc.SimpleDataSource = debug log4j.logger.com.ibatis.common.jdbc.ScriptRunner = debug log4j.logger.com.ibatis.sqlmap.engine.impl.SqlMapClientDelegate = debug log4j.logger.java.sql.Connection = debug log4j.logger.java.sql.Statement = debug log4j.logger.java.sql.PreparedStatement = debuglog4j.logger.java.sql.ResultSet =debug log4j.logger.com.pro.mapper =debug

web.xml

完整的 web.xml 配置如下：

<?xml version='1.0' encoding='UTF-8'?><web-app xmlns='http://xmlns.jcp.org/xml/ns/javaee' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xsi:schemaLocation='http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd' version='3.1'> <welcome-file-list> <welcome-file>/login</welcome-file> </welcome-file-list> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring-context*.xml</param-value> </context-param> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <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> <init-param> <param-name>forceEncoding</param-name> <param-value>true</param-value> </init-param> </filter> <filter-mapping> <filter-name>encodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <servlet> <servlet-name>springServlet</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring-mvc.xml</param-value> </init-param> </servlet> <servlet-mapping> <servlet-name>springServlet</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping></web-app>創(chuàng)建訪問視圖

在 webapp > WEB-INF > views 目錄下新建 index.jsp

<%@ page contentType='text/html;charset=UTF-8' language='java' %><html><head> <title>Index</title></head><body> <h1> Hello SSM </h1></body></html>

在 controller 目錄下創(chuàng)建 IndexController 類

package com.antoniopeng.hello.ssm.controller;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.RequestMapping;@Controllerpublic class IndexController { @RequestMapping(value = '/') public String index() { return 'index'; }}部署到 Tomcat 服務(wù)器

點擊 Intellij IDEA 右上方 Add Configuration..

添加 Tomcat 本地服務(wù)器配置

配置下載好的 Tomcat 服務(wù)器

Tomcat8 官網(wǎng)下載地址

設(shè)置訪問端口號，默認(rèn) 8080

將項目添加到 Tomcat 服務(wù)器

最后運行項目，訪問 http://localhost:8080/ 即可。

源碼地址：https://github.com/antoniopeng/ssm-example.git

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