总是想自己搭建一个简单的ssm框架的项目,有很多朋友可能会问为什么不使用springboot呢?当然,使用springboot会更加简单方便,而且搭建也很简单,配置也很简单,那我为什么不使用呢?好吧,我也不知道为什么…
开始搭建项目,首先创建一个maven项目:
创建完成如图:
然后我们把这个myProject作为一个父工程,一般可以叫做myProject-Parent,后面再改好了,然后我们新建模块,首先要在心理大概想出有几个模块,前台就叫做web,后台admin,service,dao还有common,还有domain,好吧,先就建这些.可以把父工程下的src目录删除如图:
新建所有的模块:
我们先整理一下各个模块之间的关系:
首先ssm项目,我们把web项目和admin项目打包成war包进行的部署,那么admin跟web是一样的我就只讲web好了,然后web里面肯定要依赖service,service里面依赖dao,然后common跟domain呢?那就简单点,common里面依赖domain,然后dao里面依赖common,那么就都可以使用了.如图:
然后写主pom里面的所需jar:
<properties>
<!--spring版本-->
<spring.version>4.0.2.RELEASE</spring.version>
<!--mybatis版本号-->
<mybatis.version>3.2.6</mybatis.version>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.7</maven.compiler.source>
<maven.compiler.target>1.7</maven.compiler.target>
<swagger-version>2.6.1</swagger-version>
<springmvc.swagger-version>1.0.2</springmvc.swagger-version>
<org.slf4j-version>1.7.25</org.slf4j-version>
<ch.qos.logback-version>1.2.3</ch.qos.logback-version>
</properties>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<scope>test</scope>
</dependency>
<!-- spring核心包-start -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-oxm</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aop</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- 导入java ee jar 包 -->
<dependency>
<groupId>javax</groupId>
<artifactId>javaee-api</artifactId>
<version>7.0</version>
</dependency>
<!-- JSTL标签类 -->
<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.1.41</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-databind -->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.9.5</version>
</dependency>
<!-- 映入JSON -->
<dependency>
<groupId>org.codehaus.jackson</groupId>
<artifactId>jackson-mapper-asl</artifactId>
<version>1.9.13</version>
</dependency>
<!-- 上传组件包 -->
<dependency>
<groupId>commons-fileupload</groupId>
<artifactId>commons-fileupload</artifactId>
<version>1.3.1</version>
</dependency>
<dependency>
<groupId>commons-io</groupId>
<artifactId>commons-io</artifactId>
<version>2.4</version>
</dependency>
<dependency>
<groupId>commons-codec</groupId>
<artifactId>commons-codec</artifactId>
<version>1.9</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>${org.slf4j-version}</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>jcl-over-slf4j</artifactId>
<version>${org.slf4j-version}</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>log4j-over-slf4j</artifactId>
<version>${org.slf4j-version}</version>
</dependency>
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-core</artifactId>
<version>${ch.qos.logback-version}</version>
</dependency>
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-classic</artifactId>
<version>${ch.qos.logback-version}</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.projectlombok/lombok -->
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.18.6</version>
<scope>provided</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.7</source>
<target>1.7</target>
<encoding>utf-8</encoding>
</configuration>
</plugin>
</plugins>
</build>
然后写web工程里面的jar
<dependencies>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-swagger-ui</artifactId>
<version>${swagger-version}</version>
</dependency>
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-swagger2</artifactId>
<version>${swagger-version}</version>
</dependency>
<dependency>
<groupId>com.mangofactory</groupId>
<artifactId>swagger-springmvc</artifactId>
<version>${springmvc.swagger-version}</version>
</dependency>
<dependency>
<groupId>com.txn</groupId>
<artifactId>myProject-service</artifactId>
<version>1.0-SNAPSHOT</version>
</dependency>
</dependencies>
<build>
<finalName>myProject-web</finalName>
<resources>
<resource>
<directory>src/main/java</directory>
<filtering>false</filtering>
</resource>
<resource>
<directory>src/main/resources</directory>
<filtering>true</filtering>
</resource>
<resource>
<directory>../pen-config/src/main/resources</directory>
<filtering>true</filtering>
</resource>
</resources>
</build>
注意打包war.
service里面比较简单,依赖dao就好了:
然后dao里面需要连接数据库,连接池,我这里使用的简单的apache的org.apache.commons.dbcp.BasicDataSource连接池,大家可以引入durid,或者c3p0等其他连接池:
<dependencies>
<!-- mybatis核心包 -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>${mybatis.version}</version>
</dependency>
<!-- mybatis/spring包 -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>1.2.2</version>
</dependency>
<!-- 导入Mysql数据库链接jar包 -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.36</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- 导入dbcp的jar包,用来在applicationContext.xml中配置数据库 -->
<dependency>
<groupId>commons-dbcp</groupId>
<artifactId>commons-dbcp</artifactId>
<version>1.2.2</version>
</dependency>
<dependency>
<groupId>com.txn</groupId>
<artifactId>myProject-common</artifactId>
<version>1.0-SNAPSHOT</version>
</dependency>
</dependencies>
然后编译,发现报错很明显,web项目需要web.xml文件:
然后web.xml里面配置springmvc监听,spring容器ContextLoaderListener,过滤器等等,
<?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-name>Archetype Created Web Application</display-name>
<!-- 编码过滤器 -->
<filter>
<filter-name>encodingFilter</filter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
<async-supported>true</async-supported>
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>encodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<!-- Spring监听器 -->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:/config/beans.xml</param-value>
</context-param>
<!-- 防止Spring内存溢出监听器 -->
<listener>
<listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class>
</listener>
<!-- Spring MVC servlet -->
<servlet>
<servlet-name>SpringMVC</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring-mvc.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
<async-supported>true</async-supported>
</servlet>
<servlet-mapping>
<servlet-name>SpringMVC</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>/index.jsp</welcome-file>
</welcome-file-list>
</web-app>
然后springmvc的配置文件:
<?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:p="http://www.springframework.org/schema/p"
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-3.1.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.1.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd">
<!-- 自动扫描该包,使SpringMVC认为包下用了@controller注解的类是控制器 -->
<context:component-scan base-package="com.txn.controller"/>
<!-- 扩充了注解驱动,可以将请求参数绑定到控制器参数 -->
<mvc:annotation-driven/>
<!-- 静态资源处理 css js imgs 报红不影响 -->
<mvc:resources location="/resources/static/**" mapping="/resources"/>
<mvc:resources mapping="swagger-ui.html" location="classpath:/META-INF/resources/" />
<mvc:resources mapping="/webjars/**" location="classpath:/META-INF/resources/webjars/" />
<!-- <mvc:interceptors>
<mvc:interceptor>
<mvc:mapping path="/**" />
<!– 需排除拦截的地址 –>
<mvc:exclude-mapping path="/swagger-ui.html"/>
<mvc:exclude-mapping path="/webjars/**"/>
<mvc:exclude-mapping path="/v2/**"/>
<mvc:exclude-mapping path="/swagger-resources/**"/>
<bean class="cn.gov.zjport.pen.restapi.intercepter.AuthIntercepter" />
</mvc:interceptor>
</mvc:interceptors>-->
<!--避免IE执行AJAX时,返回JSON出现下载文件 -->
<bean id="mappingJacksonHttpMessageConverter"
class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">
<property name="supportedMediaTypes">
<list>
<value>text/html;charset=UTF-8</value>
</list>
</property>
</bean>
<!-- 启动SpringMVC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"/> <!-- JSON转换器 -->
</list>
</property>
</bean>
<!-- 配置文件上传,如果没有使用文件上传可以不用配置,当然如果不配,那么配置文件中也不必引入上传组件包 -->
<bean id="multipartResolver"
class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
<!-- 默认编码 -->
<property name="defaultEncoding" value="utf-8" />
<!-- 文件大小最大值 -->
<property name="maxUploadSize" value="10485760000" />
<!-- 内存中的最大值 -->
<property name="maxInMemorySize" value="40960" />
<!-- 启用是为了推迟文件解析,以便捕获文件大小异常 -->
<property name="resolveLazily" value="true"/>
</bean>
<!-- 配置ViewResolver 。可用多个ViewResolver 。使用order属性排序。 InternalResourceViewResolver 放在最后-->
<bean class="org.springframework.web.servlet.view.ContentNegotiatingViewResolver">
<property name="order" value="1"></property>
<property name="mediaTypes">
<map>
<!-- 告诉视图解析器,返回的类型为json格式 -->
<entry key="json" value="application/json" />
<entry key="xml" value="application/xml" />
<entry key="htm" value="text/htm" />
</map>
</property>
<property name="defaultViews">
<list>
<!-- ModelAndView里的数据变成JSON -->
<bean class="org.springframework.web.servlet.view.json.MappingJackson2JsonView" />
</list>
</property>
<property name="ignoreAcceptHeader" value="true"></property>
</bean>
<!-- 定义跳转的文件的前后缀 ,视图模式配置-->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<!-- 这里的配置我的理解是自动给后面action的方法return的字符串加上前缀和后缀,变成一个 可用的url地址 -->
<property name="prefix" value="/WEB-INF/jsp/" />
<property name="suffix" value=".jsp" />
</bean>
</beans>
然后mybati的配置文件:都比较简单,然后写一个简单的测试,一个简单的ssm分模块的项目就建好了,我上传到github上面了,数据库自己随便写个就好了,这些很简单,细节可以参考源码:https://github.com/stackXu/myProject
如果大家对以上有问题,可以留言,我会第一时间帮助大家解决的,一起进步哦!!!