- SpringMVC + Spring + MyBatis
- Maven多模块
什么是SSM框架?
SpringMVC:
- 客户端发送请求到DispacherServlet(分发器)
- 由DispacherServlet控制器查询HanderMapping,找到处理请求的Controller
- Controller调用业务逻辑处理后,返回ModelAndView
- DispacherSerclet查询视图解析器,找到ModelAndView指定的视图
- 视图负责将结果显示到客户端
Spring:
- Spring是一个轻量级的控制反转(IOC)和面向切面(AOP)的容器架构,IOC容器包含并管理应用对象的配置和生命周期,你可以配置你的每个bean如何被创建,也可以配置每个bean是只有一个实例,还是每次需要时都生成一个新的实例,以及它们是如何相互关联的
- IOC思想最核心的地方在于,资源不由使用资源的双方管理,而由不使用资源的第三方管理,这可以带来很多好处。第一,资源集中管理,实现资源的可配置和易管理。第二,降低了使用资源双方的依赖程度,也就是我们说的耦合度
- 容器提供了AOP技术,利用它很容易实现如权限拦截、运行期监控等功能
MyBatis:
- MyBatis是支持普通SQL查询,存储过程和高级映射的优秀持久层框架。MyBatis消除了几乎所有的JDBC代码和参数的手工设置以及结果集的检索。MyBatis使用简单的XML或注解用于配置和原始映射,将接口和Java的POJOs(Plan Old Java Objects,普通的Java对象)映射成数据库中的记录
- MyBatis的操作都是围绕一个sqlSessionFactory实例展开的。MyBatis通过配置文件关联到各实体类的Mapper文件,Mapper文件中配置了每个类对数据库所需进行的sql语句映射。在每次与数据库交互时,通过sqlSessionFactory拿到一个sqlSession,再执行sql命令
为什么使用Maven多模块?
- JavaEE项目开发中为了便于后期的维护,一般会进行分层开发,分层之后,各个层之间的职责会比较明确,后期维护起来也相对比较容易
.
└── ssm-parent
├── pom.xml #父POM [Spring、Servlet等依赖]
├── ssm-dao #数据库访问层
│ ├── pom.xml #描述工程资源的目录,编译打包 mapper.xml
│ └── src
│ └── main
│ └── java
│ └── com #具体代码
├── ssm-domain #域模型层
│ ├── pom.xml #常用工具类依赖
│ └── src
│ └── main
│ └── java
│ └── com #具体代码
├── ssm-service #业务逻辑层
│ ├── pom.xml #JDBC、MyBatis依赖
│ └── src
│ └── main
│ ├── java
│ │ └── com #具体代码
│ └── resources
│ └── applicationContext-service.xml #扫描注解配置
└── ssm-web #表现层
├── pom.xml #定义一些常量 [jdk version]
└── src
└── main
├── java
│ └── com
├── resources
│ ├── applicationContext-aop.xml #事务配置文件
│ ├── applicationContext.properties #配置文件
│ ├── applicationContext-thread.xml #线程池配置文件
│ ├── applicationContext-web.xml #HTTP相关配置文件
│ ├── applicationContext.xml #Spring配置文件
│ ├── dataSource.xml #连接池数据源配置文件
│ ├── log4j.properties #日志配置文件
│ └── mybatis-config.xml #Mybatis配置文件
└── webapp #Web静态资源文件
├── index.jsp
├── js
├── view
└── WEB-INF #Web应用程序配置文件
创建 ssm-parent,用来给各个子模块继承
使用 cmd
或者 Terminal
,进入命令行,输入以下命令:
mvn archetype:generate -DgroupId=com.ryan -DartifactId=ssm-parent -DarchetypeArtifactId=maven-archetype-quickstart -DinteractiveMode=false
命令执行完成之后可以看到在当前目录生成了ssm-parent目录,里面有一个src目录和一个 pom.xml文件,如下图所示:
.
└── ssm-parent
├── pom.xml
└── src
将src文件夹删除,然后修改pom.xml文件,将<packaging>jar</packaging>
修改为<packaging>pom</packaging>
,pom表示它是一个被继承的模块,修改后的内容如下:
<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/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.ryan</groupId>
<artifactId>ssm-parent</artifactId>
<packaging>pom</packaging>
<version>1.0-SNAPSHOT</version>
<name>ssm-parent</name>
<url>http://maven.apache.org</url>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
</dependencies>
</project>
注:
- archetype:maven工程的模板工具包
- mvn archetype:generate:创建项目(在maven 3.02以下的版本,使用archetype:create 命令创建)
- DgroupId:组织ID
- DartifactId:项目ID
- DarchetypeArtifactId:工程类型
- DinteractiveMode:是否已交互模式进行,如果是false的话就会采用默认设置建立项目
命令行进入创建好的ssm-parent目录,然后执行下列命令:
mvn archetype:generate -DgroupId=com.ryan -DartifactId=ssm-domain -DarchetypeArtifactId=maven-archetype-quickstart -DinteractiveMode=false
命令执行完成之后可以看到在ssm-parent目录中生成了ssm-domain,里面包含src目录和pom.xml文件。如下图所示:
ssm-domain
├── pom.xml
└── src
修改ssm-domain目录中的pom.xml文件,把<groupId>com.ryan</groupId>
和<version>1.0-SNAPSHOT</version>
去掉,加上<packaging>jar</packaging>
,因为groupId和version会继承ssm-parent中的groupId和version,packaging设置打包方式为jar,修改过后的pom.xml文件如下:
<?xml version="1.0"?>
<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>com.ryan</groupId>
<artifactId>ssm-parent</artifactId>
<version>1.0-SNAPSHOT</version>
</parent>
<artifactId>ssm-domain</artifactId>
<packaging>jar</packaging>
<name>ssm-domain</name>
<url>http://maven.apache.org</url>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
</dependencies>
</project>
命令行进入创建好的ssm-parent目录,然后执行下列命令:
mvn archetype:generate -DgroupId=com.ryan -DartifactId=ssm-dao -DarchetypeArtifactId=maven-archetype-quickstart -DinteractiveMode=false
修改ssm-dao目录中的pom.xml文件,把<groupId>com.ryan</groupId>
和<version>1.0-SNAPSHOT</version>
去掉,加上<packaging>jar</packaging>
,因为groupId和version会继承ssm-parent中的groupId和version,packaging设置打包方式为jar,同时添加对ssm-domain模块的依赖,修改后的内容如下:
<?xml version="1.0"?>
<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>com.ryan</groupId>
<artifactId>ssm-parent</artifactId>
<version>1.0-SNAPSHOT</version>
</parent>
<artifactId>ssm-dao</artifactId>
<packaging>jar</packaging>
<name>ssm-dao</name>
<url>http://maven.apache.org</url>
<dependencies>
<dependency>
<groupId>com.ryan</groupId>
<artifactId>ssm-domain</artifactId>
<version>${project.version}</version>
</dependency>
</dependencies>
</project>
命令行进入创建好的ssm-parent目录,然后执行下列命令:
mvn archetype:generate -DgroupId=com.ryan -DartifactId=ssm-service -DarchetypeArtifactId=maven-archetype-quickstart -DinteractiveMode=false
修改ssm-service目录中的pom.xml文件,把<groupId>com.ryan</groupId>
和<version>1.0-SNAPSHOT</version>
去掉,加上<packaging>jar</packaging>
,因为groupId和version会继承ssm-parent中的groupId和version,packaging设置打包方式为jar,同时添加对ssm-dao模块的依赖,ssm-service依赖ssm-dao和ssm-domain,但是我们只需添加ssm-dao的依赖即可,因为ssm-dao已经依赖了ssm-domain。修改后的内容如下:
<?xml version="1.0"?>
<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>com.ryan</groupId>
<artifactId>ssm-parent</artifactId>
<version>1.0-SNAPSHOT</version>
</parent>
<artifactId>ssm-service</artifactId>
<packaging>jar</packaging>
<name>ssm-service</name>
<url>http://maven.apache.org</url>
<dependencies>
<dependency>
<groupId>com.ryan</groupId>
<artifactId>ssm-dao</artifactId>
<version>${project.version}</version>
</dependency>
</dependencies>
</project>
命令行进入创建好的ssm-parent目录,然后执行下列命令:
mvn archetype:generate -DgroupId=com.ryan -DartifactId=ssm-web -DarchetypeArtifactId=maven-archetype-webapp -DinteractiveMode=false
命令执行完成之后可以看到在ssm-parent目录中生成了ssm-web,里面包含src目录和pom.xml文件。如下图所示:
ssm-web
├── pom.xml
└── src
└── main
├── resources
└── webapp
├── index.jsp
└── WEB-INF
└── web.xml
修改ssm-web目录中的pom.xml文件,把<groupId>com.ryan</groupId>
和<version>1.0-SNAPSHOT</version>
去掉,因为groupId和version会继承ssm-parent中的groupId和version,packaging设置打包方式为war,同时添加对ssm-service模块的依赖,修改后的内容如下:
<?xml version="1.0"?>
<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>com.ryan</groupId>
<artifactId>ssm-parent</artifactId>
<version>1.0-SNAPSHOT</version>
</parent>
<artifactId>ssm-web</artifactId>
<packaging>war</packaging>
<name>ssm-web Maven Webapp</name>
<url>http://maven.apache.org</url>
<dependencies>
<dependency>
<groupId>com.ryan</groupId>
<artifactId>ssm-service</artifactId>
<version>${project.version}</version>
</dependency>
</dependencies>
<build>
<finalName>ssm-web</finalName>
</build>
</project>
至此,Maven多模块项目已经搭建完成!
我们使用的是maven来管理的jar,所以只需要在pom.xml中加入相应的依赖,就能导入需要的jar包。这里把项目用到的jar贴在下面,可以自己调整版本号。因为是多模块项目,每个子模块下面都有pom.xml,这里只举例ssm-parent及ssm-service下的pom.xml,当然所有模块的依赖也可以都放在ssm-parent下的pom.xml(即父项目的pom.xml),可按照需要自行调整
ssm-parent pom.xml
<?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/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.ryan</groupId>
<artifactId>ssm-parent</artifactId>
<packaging>pom</packaging>
<version>1.0-SNAPSHOT</version>
<name>ssm-parent</name>
<url>http://maven.apache.org</url>
<dependencies>
<!-- spring webmvc -->
<!-- https://mvnrepository.com/artifact/org.springframework/spring-webmvc -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>4.3.10.RELEASE</version>
</dependency>
<!-- servlet api -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.5</version>
<scope>provided</scope>
</dependency>
<!-- jstl -->
<!-- https://mvnrepository.com/artifact/javax.servlet/jstl -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<!-- junit -->
<!-- https://mvnrepository.com/artifact/junit/junit -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<scope>test</scope>
</dependency>
<!-- log4j -->
<!-- https://mvnrepository.com/artifact/log4j/log4j -->
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.17</version>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-slf4j-impl</artifactId>
<version>2.6.2</version>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-jcl</artifactId>
<version>2.6.2</version>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-web</artifactId>
<version>2.6.2</version>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-core</artifactId>
<version>2.6.2</version>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-api</artifactId>
<version>2.6.2</version>
</dependency>
<!-- fileupload -->
<!-- https://mvnrepository.com/artifact/commons-fileupload/commons-fileupload -->
<dependency>
<groupId>commons-fileupload</groupId>
<artifactId>commons-fileupload</artifactId>
<version>1.3.1</version>
</dependency>
</dependencies>
<modules>
<module>ssm-domain</module>
<module>ssm-dao</module>
<module>ssm-service</module>
<module>ssm-web</module>
</modules>
<build>
<!-- jdk version -->
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.1</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
<encoding>UTF-8</encoding>
</configuration>
</plugin>
</plugins>
</build>
</project>
ssm-service pom.xml
<?xml version="1.0"?>
<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>com.ryan</groupId>
<artifactId>ssm-parent</artifactId>
<version>1.0-SNAPSHOT</version>
</parent>
<artifactId>ssm-service</artifactId>
<packaging>jar</packaging>
<name>ssm-service</name>
<url>http://maven.apache.org</url>
<dependencies>
<!-- spring jdbc -->
<!-- https://mvnrepository.com/artifact/org.springframework/spring-jdbc -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>4.3.10.RELEASE</version>
</dependency>
<!-- spring aspect -->
<!-- https://mvnrepository.com/artifact/org.springframework/spring-aspects -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aspects</artifactId>
<version>4.3.10.RELEASE</version>
</dependency>
<!-- mybatis -->
<!-- https://mvnrepository.com/artifact/org.mybatis/mybatis -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.2.6</version>
</dependency>
<!-- mybatis spring -->
<!-- https://mvnrepository.com/artifact/org.mybatis/mybatis-spring -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>1.2.2</version>
</dependency>
<!-- mysql -->
<!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.18</version>
</dependency>
<!-- druid -->
<!-- https://mvnrepository.com/artifact/com.alibaba/druid -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.0.29</version>
</dependency>
<dependency>
<groupId>com.ryan</groupId>
<artifactId>ssm-dao</artifactId>
<version>${project.version}</version>
</dependency>
</dependencies>
</project>
下面开始进行编写框架所需配置文件
参数配置文件
通常我们把数据库配置、redis等相关参数放到配置文件中,所以在ssm-web模块中的resources文件夹里新建applicationContext.properties文件,存放项目相关参数配置
applicationContext.properties
#db
#jdbc.driver=oracle.jdbc.driver.OracleDriver
jdbc.driver=com.mysql.jdbc.Driver
#jdbc.url=jdbc:oracle:thin:@172.18.100.223:1521:duvet
jdbc.url=jdbc:mysql://116.62.22.2:3306/student?useUnicode=true&characterEncoding=utf8
jdbc.username=student
jdbc.password=Password@123456
pool.maxPoolSize=10
pool.removeAbandonedTimeout=180000
pool.maxWait=10000
pool.timeBetweenEvictionRunsMillis=60000
pool.minEvictableIdleTimeMillis=300000
pool.validationQuery=select 1
注:
- 配置中的数据库信息为测试库,只有select权限
连接池数据源配置文件
在ssm-web模块中的resources文件夹里新建dataSource.xml文件,配置连接池数据源
- 数据库连接信息
- 配置数据库连接池
- 声明式事务
- 配置SqlSessionFactory对象
- 扫描dao层接口,动态实现dao接口
dataSource.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:tx="http://www.springframework.org/schema/tx"
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-4.0.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-4.0.xsd">
<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource" init-method="init" destroy-method="close">
<property name="url" value="${jdbc.url}" />
<property name="driverClassName" value="${jdbc.driver}" />
<property name="maxActive" value="${pool.maxPoolSize}" />
<property name="username" value="${jdbc.username}" />
<property name="password" value="${jdbc.password}" />
<!-- 超过时间限制是否回收 -->
<property name="removeAbandoned" value="true" />
<!-- 超时时间;单位为秒。180秒=3分钟 -->
<property name="removeAbandonedTimeout" value="${pool.removeAbandonedTimeout}" />
<!-- 配置获取连接等待超时的时间 -->
<property name="maxWait" value="${pool.maxWait}" />
<!-- 配置间隔多久才进行一次检测,检测需要关闭的空闲连接,单位是毫秒 -->
<property name="timeBetweenEvictionRunsMillis" value="${pool.timeBetweenEvictionRunsMillis}" />
<!-- 配置一个连接在池中最小生存的时间,单位是毫秒 -->
<property name="minEvictableIdleTimeMillis" value="${pool.minEvictableIdleTimeMillis}" />
<property name="validationQuery" value="${pool.validationQuery} " />
<property name="testWhileIdle" value="true" />
<property name="testOnBorrow" value="false" />
<property name="testOnReturn" value="false" />
</bean>
<!-- 事务 控制 begin -->
<bean name="transactionManager"
class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"></property>
</bean>
<tx:annotation-driven transaction-manager="transactionManager" proxy-target-class="true" order="10"/>
<!-- 事务 控制 end -->
<!-- 自动扫描mapping文件 start -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="configLocation" value="classpath:mybatis-config.xml" />
<property name="mapperLocations">
<list>
<!-- 表示在com/ryan/mapper包或以下所有目录中,以-Mapper.xml结尾所有文件 -->
<value>classpath*:com/ryan/mapper/**/*Mapper.xml</value>
</list>
</property>
<!--<property name="typeAliasesSuperType" value="com.ryan.framework.entity.BaseEntity" />-->
<property name="configurationProperties">
<props>
<!--<prop key="dialect">oracle</prop>-->
<prop key="dialect">mysql</prop>
</props>
</property>
<property name="plugins">
<list>
<!--<bean class="com.ryan.framework.mybatis.SqlInterceptor" />-->
</list>
</property>
</bean>
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.ryan.dao" />
<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory" />
</bean>
<!-- 自动扫描mapping文件 end -->
</beans>
MyBatis配置文件
项目使用MyBatis持久层框架,所以需要配置MyBatis核心文件,在ssm-web模块中recources文件夹里新建mybatis-config.xml文件
- 指定日志格式
- 是否开启自动驼峰命名规则
- 延迟加载
- 按需加载对象
- 分页插件
mybatis-config.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE configuration
PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
<settings>
<!-- 指定 MyBatis 所用日志的具体实现 -->
<setting name="logImpl" value="LOG4J" />
<!-- 是否开启自动驼峰命名规则 -->
<setting name="mapUnderscoreToCamelCase" value="true" />
<!-- 延迟加载的全局开关 -->
<setting name="lazyLoadingEnabled" value="true"/>
<!-- 按需加载对象 -->
<setting name="aggressiveLazyLoading" value="false"/>
</settings>
<!-- 配置分页插件 -->
<plugins>
<plugin interceptor="com.github.pagehelper.PageHelper">
<!-- 设置数据库类型 Oracle,Mysql,MariaDB,SQLite,Hsqldb,PostgreSQL六种数据库-->
<property name="dialect" value="mysql"/>
<!--<property name="dialect" value="oracle"/>-->
</plugin>
</plugins>
</configuration>
业务集成配置
处理业务相关,在ssm-service模块的recources文件夹里新建applicationContext-service.xml文件
- 扫描注解
applicationContext-service.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:aop="http://www.springframework.org/schema/aop"
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-4.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-4.0.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-4.0.xsd">
<aop:config />
<!-- enable @AspectJ support with XML based configuration -->
<aop:aspectj-autoproxy />
<context:annotation-config />
<!-- 启动包扫描功能,以便注册带有@Controller、@Service、@repository、@Component等注解的类成为spring的bean -->
<context:component-scan base-package="com.ryan" />
</beans>
Web应用程序配置文件
- 开启SpringMVC注解模式
- 视图解析器
rest-servlet.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:mvc="http://www.springframework.org/schema/mvc"
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"
>
<mvc:annotation-driven/>
<bean id="contentNegotiationManager" class="org.springframework.web.accept.ContentNegotiationManagerFactoryBean">
<property name="mediaTypes">
<map>
<entry key="xml" value="application/xml"/>
<entry key="html" value="text/html"/>
</map>
</property>
</bean>
<bean class="org.springframework.web.servlet.view.ContentNegotiatingViewResolver">
<property name="contentNegotiationManager" ref="contentNegotiationManager"/>
<property name="viewResolvers">
<list>
<bean class="org.springframework.web.servlet.view.BeanNameViewResolver"/>
<bean id="viewResolver" class="org.springframework.web.servlet.view.UrlBasedViewResolver">
<property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/>
<property name="prefix" value="/view/"/>
<property name="suffix" value=".jsp"/>
</bean>
</list>
</property>
</bean>
</beans>
web.xml
- 字符编码过滤器
- 配置Spring需要加载的配置文件
- 配置DispatcherServlet分发器
<?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">
<!--filter -->
<filter>
<filter-name>characterEncodingFilter</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>forceRequestEncoding</param-name>
<param-value>true</param-value>
</init-param>
<init-param>
<param-name>forceResponseEncoding</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>characterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<filter>
<filter-name>contextfilter</filter-name>
<filter-class>com.ryan.filter.WebContextFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>contextfilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<!--mode1 start-->
<!-- spring -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:applicationContext.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!-- spring mvc -->
<servlet>
<servlet-name>rest</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>rest</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<!--mode1 end-->
<!--mode2 start-->
<!--<servlet>
<servlet-name>dispatcherServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:applicationContext.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>dispatcherServlet</servlet-name>
<url-pattern>/*</url-pattern>
</servlet-mapping>-->
<!--mode2 end-->
<display-name>ssm-parent</display-name>
</web-app>
其他配置
项目中还配置了日志、事务、线程池及Spring跳转配置,可根据实际情况斟酌增删配置
这里贴上demo的数据库,并为student表初始化一些数据
student.sql
SET NAMES utf8mb4;
SET FOREIGN_KEY_CHECKS = 0;
-- ----------------------------
-- Table structure for t_student_info
-- ----------------------------
DROP TABLE IF EXISTS `t_student_info`;
CREATE TABLE `t_student_info` (
`stu_id` int(11) NOT NULL AUTO_INCREMENT COMMENT '编号',
`stu_number` int(11) NULL DEFAULT NULL COMMENT '学号',
`stu_name` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL COMMENT '姓名',
`stu_gender` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL COMMENT '性别',
`stu_age` int(3) NULL DEFAULT NULL COMMENT '年龄',
PRIMARY KEY (`stu_id`) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 10004 CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Dynamic;
-- ----------------------------
-- Records of t_student_info
-- ----------------------------
INSERT INTO `t_student_info` VALUES (10001, 95001, '张三', '男', 20);
INSERT INTO `t_student_info` VALUES (10002, 95002, '李四', '男', 21);
INSERT INTO `t_student_info` VALUES (10003, 95003, '王五', '女', 22);
SET FOREIGN_KEY_CHECKS = 1;
看到这里,其实我们的ssm框架与maven多模块的整合配置已经完成了,demo里也已经实现了简单的增删改查,只不过缺少页面而已,后台处理的数据返回到页面上是一串json,不过这些已经足够展示了,需要的同学可以去下载,感觉还不错就给个star吧!