如何搭建一個空的SSM框架
這裏說的SSM是指 Spring SpringMVC MyBatis
這裏寫這篇文章的目的是 馬上又要開始 一年的畢設季了
開始配置
首先建立以下目錄 目錄結構 可以自行修改，但一定要同時更改所有配置文件中的路徑
web.xml
<?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>xss</display-name>
<welcome-file-list>
<welcome-file>index.html</welcome-file> <!-- 初始頁面 -->
</welcome-file-list>
<!-- 加載srping容器 -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:applicationContext.xml</param-value>
</context-param>
<listener>
<!-- ContextLoaderListener監聽器的作用就是啓動Web容器時，自動裝配ApplicationContext 的配置信息。
因爲它實現了ServletContextListener這個接口，在web.xml配置這個監聽器，啓動容器時， 就會默認執行它實現的方法 -->
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!-- 配置Spring字符編碼過濾器 -->
<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>
<!-- 設置熱部署 -->
<init-param>
<param-name>development</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>encodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<!-- 前端控制器 -->
<servlet>
<servlet-name>springmvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<!-- 指定springmvc的核心文件 -->
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:springmvc.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<!-- 映射 -->
<servlet-mapping>
<servlet-name>springmvc</servlet-name>
<url-pattern>/*</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name >default </servlet-name >
<url-pattern >*.js</url-pattern>
</servlet-mapping >
<servlet-mapping >
<servlet-name >default </servlet-name >
<url-pattern >*.css</url-pattern>
</servlet-mapping >
</web-app>
applicationContext.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:p="http://www.springframework.org/schema/p"
xmlns:aop="http://www.springframework.org/schema/aop" 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.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util.xsd">
<!-- 配置 @Service註解掃描 -->
<context:component-scan base-package="com.*.service"></context:component-scan>
<!-- 加載其他配置文件 -->
<import resource="classpath:applicationContext-mybatis.xml" />
<!-- 導入屬性配置文件 -->
<bean
class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<!-- 允許JVM參數覆蓋 -->
<property name="systemPropertiesModeName" value="SYSTEM_PROPERTIES_MODE_OVERRIDE" />
<!-- 忽略沒有找到的資源文件 -->
<property name="ignoreResourceNotFound" value="true" />
<property name="locations">
<list>
<value>classpath*:db.properties</value>
</list>
</property>
</bean>
<!-- ==================druid連接池 配置================== -->
<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource"
init-method="init" destroy-method="close">
<!-- 基本屬性 url、user、password -->
<property name="url" value="${jdbc.url}" />
<property name="username" value="${jdbc.username}" />
<property name="password" value="${jdbc.password}" />
<!-- 配置初始化大小、最小、最大 -->
<property name="initialSize" value="${ds.initialSize}" />
<property name="minIdle" value="${ds.minIdle}" />
<property name="maxActive" value="${ds.maxActive}" />
<!-- 配置獲取連接等待超時的時間 -->
<property name="maxWait" value="${ds.maxWait}" />
<!-- 配置間隔多久才進行一次檢測，檢測需要關閉的空閒連接，單位是毫秒 -->
<property name="timeBetweenEvictionRunsMillis" value="${ds.timeBetweenEvictionRunsMillis}" />
<!-- 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="${ds.minEvictableIdleTimeMillis}" />
<!-- 打開PSCache，並且指定每個連接上PSCache的大小 -->
<property name="poolPreparedStatements" value="true" />
<property name="maxPoolPreparedStatementPerConnectionSize"
value="20" />
<!-- JDBC Proxy Driver -->
<property name="proxyFilters">
<list>
<ref bean="stat-filter" />
</list>
</property>
</bean>
<!-- SQL合併配置, 慢SQL記錄 如祕鑰方式配置 -->
<!-- <property name="connectionProperties" value="druid.stat.mergeSql=true,druid.stat.slowSqlMillis=1000;config.decrypt=true;config.decrypt.key=${publicKey}"
/> -->
<bean id="stat-filter" class="com.alibaba.druid.filter.stat.StatFilter">
<property name="slowSqlMillis" value="1000" />
<property name="logSlowSql" value="true" />
<property name="mergeSql" value="true" />
</bean>
<!-- 事務聲明 -->
<bean id="txManager"
class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource" />
</bean>
<tx:annotation-driven proxy-target-class="false"
transaction-manager="txManager" />
</beans>
applicationContext-mybatis.xml
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p"
xmlns:aop="http://www.springframework.org/schema/aop" 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/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 http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd">
<!-- mapper配置 -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<!-- 指定數據庫連接池 -->
<property name="dataSource" ref="dataSource"></property>
<!-- 加載mybatis的全局配置文件 -->
<property name="configLocation" value="classpath:mybatis/mybatis-config.xml"></property>
<property name="typeAliasesPackage" value="com.xss.pojo"></property><!-- 數據庫實體類 -->
<property name="mapperLocations">
<list>
<value>classpath:mybatis/mapper/*.xml</value>
</list>
</property>
<!-- 分頁插件 -->
<property name="plugins">
<array>
<bean class="com.github.pagehelper.PageInterceptor">
<property name="properties">
<value>
helperDialect=mysql
offsetAsPageNum=true
<!-- 防止出現小於第一頁，大於最後一頁的異常情況出現。 -->
reasonable=true
</value>
</property>
</bean>
<bean class="com.github.abel533.mapperhelper.MapperInterceptor">
<property name="properties">
<value>
<!-- 主鍵自增回寫方法,默認值MYSQL -->
IDENTITY=MYSQL
mappers=com.github.abel533.mapper.Mapper
</value>
</property>
</bean>
</array>
</property>
</bean>
<!-- 配置mapper的bean，使用包掃描的方式 批量導入Mapper。這樣mybatis所有的配置都交給spring來管理 掃描後 引用時可以直接使用類名，注意首字母小寫 -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<!-- 指定掃描包的全路徑。如果有多個，用英文的逗號分開 -->
<property name="basePackage" value="com.*.mapper"></property>
</bean>
</beans>
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>
<!-- 配置mybatis的緩存，延遲加載等等一系列屬性 -->
<settings>
<!-- 全局映射器啓用緩存 -->
<setting name="cacheEnabled" value="true"/>
<!-- 查詢時，關閉關聯對象即時加載以提高性能 -->
<setting name="lazyLoadingEnabled" value="true"/>
<!-- 對於未知的SQL查詢，允許返回不同的結果集以達到通用的效果 -->
<setting name="multipleResultSetsEnabled" value="true"/>
<!-- 允許使用列標籤代替列名 -->
<setting name="useColumnLabel" value="true"/>
<!-- 不允許使用自定義的主鍵值(比如由程序生成的UUID 32位編碼作爲鍵值)，數據表的PK生成策略將被覆蓋 -->
<setting name="useGeneratedKeys" value="false"/>
<!-- 給予被嵌套的resultMap以字段-屬性的映射支持 FULL,PARTIAL -->
<setting name="autoMappingBehavior" value="PARTIAL"/>
<!-- Allows using RowBounds on nested statements -->
<setting name="safeRowBoundsEnabled" value="false"/>
<!-- Enables automatic mapping from classic database column names A_COLUMN to camel case classic Java property names aColumn. -->
<setting name="mapUnderscoreToCamelCase" value="true"/>
<!-- MyBatis uses local cache to prevent circular references and speed up repeated nested queries. By default (SESSION) all queries executed during a session are cached. If localCacheScope=STATEMENT
local session will be used just for statement execution, no data will be shared between two different calls to the same SqlSession. -->
<setting name="localCacheScope" value="SESSION"/>
<!-- Specifies the JDBC type for null values when no specific JDBC type was provided for the parameter. Some drivers require specifying the column JDBC type but others work with generic values
like NULL, VARCHAR or OTHER. -->
<setting name="jdbcTypeForNull" value="OTHER"/>
<!-- Specifies which Object's methods trigger a lazy load -->
<setting name="lazyLoadTriggerMethods" value="equals,clone,hashCode,toString"/>
<!-- 設置關聯對象加載的形態，此處爲按需加載字段(加載字段由SQL指定)，不會加載關聯表的所有字段，以提高性能 -->
<setting name="aggressiveLazyLoading" value="false"/>
<setting name="logImpl" value="STDOUT_LOGGING"/>
</settings>
<typeAliases>
<!-- 注：model表對象配置，請按照model 包中的順序進行錄入,並做好註釋. -->
<!--設置別名-->
<package name="cn.xss.pojo"/>
</typeAliases>
<plugins>
<plugin interceptor="com.github.abel533.mapperhelper.MapperInterceptor">
<!--主鍵自增回寫方法,默認值MYSQL,詳細說明請看文檔 -->
<property name="IDENTITY" value="MYSQL" />
<!--通用Mapper接口，多個通用接口用逗號隔開 -->
<property name="mappers" value="com.github.abel533.mapper.Mapper" />
</plugin>
</plugins>
</configuration>
db.properties
jdbc.driver=com.mysql.jdbc.Driver
#\u672C\u5730\u6570\u636E\u5E93
jdbc.url=jdbc:mysql://127.0.0.1:3306/xss?allowMultiQueries=true&useUnicode=true&characterEncoding=utf-8
jdbc.username=root
jdbc.password=root
##DataSource Global Setting
#\u914D\u7F6E\u521D\u59CB\u5316\u5927\u5C0F\u3001\u6700\u5C0F\u3001\u6700\u5927
ds.initialSize=10
ds.minIdle=5
ds.maxActive=12
#\u914D\u7F6E\u83B7\u53D6\u8FDE\u63A5\u7B49\u5F85\u8D85\u65F6\u7684\u65F6\u95F4
ds.maxWait=60000
#\u914D\u7F6E\u95F4\u9694\u591A\u4E45\u624D\u8FDB\u884C\u4E00\u6B21\u68C0\u6D4B\uFF0C\u68C0\u6D4B\u9700\u8981\u5173\u95ED\u7684\u7A7A\u95F2\u8FDE\u63A5\uFF0C\u5355\u4F4D\u662F\u6BEB\u79D2
ds.timeBetweenEvictionRunsMillis=60000
# \u914D\u7F6E\u4E00\u4E2A\u8FDE\u63A5\u5728\u6C60\u4E2D\u6700\u5C0F\u751F\u5B58\u7684\u65F6\u95F4\uFF0C\u5355\u4F4D\u662F\u6BEB\u79D2
ds.minEvictableIdleTimeMillis=300000
springmvc.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd
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">
<!-- 配置@Controller註解 掃描加載 -->
<context:component-scan base-package="com.*.controller"></context:component-scan>
<!-- Enables the Spring MVC @Controller programming model -->
<mvc:annotation-driven />
<!-- Spring框架來處理靜態文件解決後臺No mapping found for HTTP request with URI 錯誤 -->
<mvc:default-servlet-handler />
<!-- 支持返回json(避免IE在ajax請求時，返回json出現下載 ) -->
<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>
<value>text/plain;charset=UTF-8</value>
<value>application/json;charset=UTF-8</value>
</list>
</property>
</bean>
<!-- FreeMarker視圖解析器 默認視圖 -->
<bean id="viewResolver" class="org.springframework.web.servlet.view.freemarker.FreeMarkerViewResolver">
<property name="viewClass" value="org.springframework.web.servlet.view.freemarker.FreeMarkerView"/>
<property name="contentType" value="text/html; charset=utf-8"/>
<property name="requestContextAttribute" value="rc"/>
<property name="cache" value="false"/>
<property name="viewNames" value="*.html" />
<property name="suffix" value=""/>
<property name="order" value="0"/>
</bean>
<bean class="org.springframework.web.servlet.view.freemarker.FreeMarkerConfigurer">
<property name="templateLoaderPath" value="/WEB-INF/page/"/>
<property name="defaultEncoding" value ="UTF-8"></property>
</bean>
<!-- 靜態資源配置 -->
<mvc:resources location="/static/" mapping="/static/**"></mvc:resources>
</beans>
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