课程目标
使用SpringMVC+Mybatis+Spring+Maven进行分模块整合简单实现视频网站开发

一、项目演示

视频网站构建模式
分为:自建模式和第三方模式
自建模式:需要自己搭建服务器、解决CDN加速问题、提高SDK、防盗链等问题
第三方模式:使用第三方云视频接口、阿里云、保利云(8毛)、乐视云(4毛G)。
讲述一下蚂蚁课堂网站视频架构

二、使用技术

后端:SpringMVC、Spring、Mybatis
前端:jquery
itmayiedu-parent —父类工程
itmayiedu-commons —工具类
itmayiedu-entity —实体类
itmayiedu-dao —数据库访问层
itmayiedu-service —服务层
itmayiedu-web —web层

三、项目整合

3.1 itmayiedu-parent父工程添加依赖

<!-- 集中定义依赖版本号 --><properties><junit.version>4.12</junit.version><spring.version>4.1.3.RELEASE</spring.version><mybatis.version>3.2.8</mybatis.version><mybatis.spring.version>1.2.2</mybatis.spring.version><mybatis.paginator.version>1.2.15</mybatis.paginator.version><mysql.version>5.1.32</mysql.version><slf4j.version>1.6.4</slf4j.version><jackson.version>2.4.2</jackson.version><druid.version>1.0.9</druid.version><httpclient.version>4.3.5</httpclient.version><jstl.version>1.2</jstl.version><servlet-api.version>2.5</servlet-api.version><jsp-api.version>2.0</jsp-api.version><joda-time.version>2.5</joda-time.version><commons-lang3.version>3.3.2</commons-lang3.version><commons-io.version>1.3.2</commons-io.version><commons-net.version>3.3</commons-net.version><pagehelper.version>5.0.0</pagehelper.version><jsqlparser.version>0.9.1</jsqlparser.version><commons-fileupload.version>1.3.1</commons-fileupload.version><jedis.version>2.7.2</jedis.version><solrj.version>4.10.3</solrj.version></properties><dependencyManagement><dependencies><!-- 时间操作组件 --><dependency><groupId>joda-time</groupId><artifactId>joda-time</artifactId><version>${joda-time.version}</version></dependency><!-- Apache工具组件 --><dependency><groupId>org.apache.commons</groupId><artifactId>commons-lang3</artifactId><version>${commons-lang3.version}</version></dependency><dependency><groupId>org.apache.commons</groupId><artifactId>commons-io</artifactId><version>${commons-io.version}</version></dependency><dependency><groupId>commons-net</groupId><artifactId>commons-net</artifactId><version>${commons-net.version}</version></dependency><!-- Jackson Json处理工具包 --><dependency><groupId>com.fasterxml.jackson.core</groupId><artifactId>jackson-databind</artifactId><version>${jackson.version}</version></dependency><!-- httpclient --><dependency><groupId>org.apache.httpcomponents</groupId><artifactId>httpclient</artifactId><version>${httpclient.version}</version></dependency><!-- 单元测试 --><dependency><groupId>junit</groupId><artifactId>junit</artifactId><version>${junit.version}</version><scope>test</scope></dependency><!-- 日志处理 --><dependency><groupId>org.slf4j</groupId><artifactId>slf4j-log4j12</artifactId><version>${slf4j.version}</version></dependency><!-- Mybatis --><dependency><groupId>org.mybatis</groupId><artifactId>mybatis</artifactId><version>${mybatis.version}</version></dependency><dependency><groupId>org.mybatis</groupId><artifactId>mybatis-spring</artifactId><version>${mybatis.spring.version}</version></dependency><dependency><groupId>com.github.miemiedev</groupId><artifactId>mybatis-paginator</artifactId><version>${mybatis.paginator.version}</version></dependency><dependency><groupId>com.github.pagehelper</groupId><artifactId>pagehelper</artifactId><version>${pagehelper.version}</version></dependency><!-- MySql --><dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId><version>${mysql.version}</version></dependency><!-- 连接池 --><dependency><groupId>com.alibaba</groupId><artifactId>druid</artifactId><version>${druid.version}</version></dependency><!-- Spring --><dependency><groupId>org.springframework</groupId><artifactId>spring-context</artifactId><version>${spring.version}</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-beans</artifactId><version>${spring.version}</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-webmvc</artifactId><version>${spring.version}</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-jdbc</artifactId><version>${spring.version}</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-aspects</artifactId><version>${spring.version}</version></dependency><!-- JSP相关 --><dependency><groupId>jstl</groupId><artifactId>jstl</artifactId><version>${jstl.version}</version></dependency><dependency><groupId>javax.servlet</groupId><artifactId>servlet-api</artifactId><version>${servlet-api.version}</version><scope>provided</scope></dependency><dependency><groupId>javax.servlet</groupId><artifactId>jsp-api</artifactId><version>${jsp-api.version}</version><scope>provided</scope></dependency><!-- 文件上传组件 --><dependency><groupId>commons-fileupload</groupId><artifactId>commons-fileupload</artifactId><version>${commons-fileupload.version}</version></dependency><!-- Redis客户端 --><dependency><groupId>redis.clients</groupId><artifactId>jedis</artifactId><version>${jedis.version}</version></dependency></dependencies></dependencyManagement><build><finalName>${project.artifactId}</finalName><plugins><!-- 资源文件拷贝插件 --><plugin><groupId>org.apache.maven.plugins</groupId><artifactId>maven-resources-plugin</artifactId><version>2.7</version><configuration><encoding>UTF-8</encoding></configuration></plugin><!-- java编译插件 --><plugin><groupId>org.apache.maven.plugins</groupId><artifactId>maven-compiler-plugin</artifactId><version>3.2</version><configuration><source>1.8</source><target>1.8</target><encoding>UTF-8</encoding></configuration></plugin></plugins><pluginManagement><plugins><!-- 配置Tomcat插件 --><plugin><groupId>org.apache.tomcat.maven</groupId><artifactId>tomcat7-maven-plugin</artifactId><version>2.2</version></plugin></plugins></pluginManagement></build>

3.2 Spring整合SpringMVC

3.2.1 引入SpringMVC-Maven依赖

<dependencies><!-- JSP相关 --><dependency><groupId>jstl</groupId><artifactId>jstl</artifactId></dependency><dependency><groupId>javax.servlet</groupId><artifactId>servlet-api</artifactId><scope>provided</scope></dependency><dependency><groupId>javax.servlet</groupId><artifactId>jsp-api</artifactId><scope>provided</scope></dependency><!-- 文件上传组件 --><dependency><groupId>commons-fileupload</groupId><artifactId>commons-fileupload</artifactId></dependency><!-- springwebmvc --><dependency><groupId>org.springframework</groupId><artifactId>spring-webmvc</artifactId></dependency><dependency><groupId>com.itmayiedu</groupId><artifactId>itmayiedu-entity</artifactId><version>0.0.1-SNAPSHOT</version></dependency>
<dependency><groupId>com.fasterxml.jackson.core</groupId><artifactId>jackson-annotations</artifactId><version>2.5.0</version></dependency><dependency><groupId>com.fasterxml.jackson.core</groupId><artifactId>jackson-core</artifactId><version>2.5.0</version></dependency><dependency><groupId>com.fasterxml.jackson.core</groupId><artifactId>jackson-databind</artifactId></dependency><dependency><groupId>com.fasterxml.jackson.jr</groupId><artifactId>jackson-jr-all</artifactId><version>2.5.0</version></dependency></dependencies>

3.2.2 新增springmvc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.xsdhttp://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsdhttp://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd"><!-- springmvc 扫包范围 --><context:component-scan base-package="com.itmayiedu.controller" /><!-- 开启springmvc注解 --><mvc:annotation-driven /><!-- 视图跳转类型 --><beanclass="org.springframework.web.servlet.view.InternalResourceViewResolver"><property name="prefix" value="/WEB-INF/jsp/" /><property name="suffix" value=".jsp" /></bean>
</beans>

3.2.3 web.xml加载SpringMVC配置文件

<!-- 解决post乱码 --><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>forceEncoding</param-name> <param-value>true</param-value> </init-param> --></filter><filter-mapping><filter-name>CharacterEncodingFilter</filter-name><url-pattern>/*</url-pattern></filter-mapping><!-- springmvc的前端控制器 --><servlet><servlet-name>itmayiedu-web</servlet-name><servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class><!-- contextConfigLocation不是必须的， 如果不配置contextConfigLocation， springmvc的配置文件默认在：WEB-INF/servlet的name+"-servlet.xml" --><init-param><param-name>contextConfigLocation</param-name><param-value>classpath:spring/springmvc.xml</param-value></init-param><load-on-startup>1</load-on-startup></servlet><servlet-mapping><servlet-name>itmayiedu-web</servlet-name><url-pattern>/</url-pattern></servlet-mapping>

3.2.4 创建测试SpringMVC环境结果

@Controller
public class TestController {private static final String TEST="test";@RequestMapping("/test")public String test(){return TEST;}
}

3.2.5运行SpringMVC环境结果

Ok springMVC环境搭建成功

3.3Spring整合Mybatis

3.3.1 表结构说明

--视频类型表
CREATE TABLE `video_type` (`id` int(11) NOT NULL AUTO_INCREMENT COMMENT '主键(自增长)',`type_name` varchar(30) DEFAULT NULL COMMENT '视频类型',PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=5 DEFAULT CHARSET=utf8;
--视频详情表
CREATE TABLE `video_info` (`id` int(11) NOT NULL AUTO_INCREMENT COMMENT '主键(自增长)',`video_name` varchar(150) DEFAULT NULL COMMENT '视频名称',`video_url` varchar(100) DEFAULT NULL COMMENT '封面图片',`video_html` varchar(500) DEFAULT NULL COMMENT '视频html执行元素',`video_type_id` int DEFAULT NULL COMMENT '关联typeID',`video_del` INT DEFAULT 0 COMMENT '是否显示 0显示 1隐藏',PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=5 DEFAULT CHARSET=utf8;

3.3.2 itmayiedu-dao工程中新增依赖

 <!-- 依赖管理 --><dependencies><dependency><groupId>com.itmayiedu</groupId><artifactId>weixin-entity</artifactId><version>0.0.1-SNAPSHOT</version></dependency><!-- Mybatis --><dependency><groupId>org.mybatis</groupId><artifactId>mybatis</artifactId></dependency><dependency><groupId>org.mybatis</groupId><artifactId>mybatis-spring</artifactId></dependency><dependency><groupId>com.github.miemiedev</groupId><artifactId>mybatis-paginator</artifactId></dependency><dependency><groupId>com.github.pagehelper</groupId><artifactId>pagehelper</artifactId></dependency><!-- MySql --><dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId></dependency><!-- 连接池 --><dependency><groupId>com.alibaba</groupId><artifactId>druid</artifactId></dependency></dependencies><!-- 如果不添加此节点mybatis的mapper.xml文件都会被漏掉。 --><build><resources><resource><directory>src/main/java</directory><includes><include>**/*.properties</include><include>**/*.xml</include></includes><filtering>false</filtering></resource></resources></build>

3.3.2 itmayiedu-service工程中新增依赖

<dependencies><dependency><groupId>com.itmayiedu</groupId><artifactId>itmayiedu-dao</artifactId><version>0.0.1-SNAPSHOT</version></dependency><!-- Spring --><dependency><groupId>org.springframework</groupId><artifactId>spring-context</artifactId></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-beans</artifactId></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-jdbc</artifactId></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-aspects</artifactId></dependency><!-- 日志处理 --><dependency><groupId>org.slf4j</groupId><artifactId>slf4j-log4j12</artifactId></dependency></dependencies>

3.3.3新增db.properties

jdbc.driver=com.mysql.jdbc.Driver
jdbc.host=localhost
jdbc.database=test
jdbc.userName=root
jdbc.passWord=root
jdbc.initialSize=0
jdbc.maxActive=20
jdbc.maxIdle=20
jdbc.minIdle=1
jdbc.maxWait=1000

3.3.4新增applicationContext-service

<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.xsdhttp://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsdhttp://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.xsdhttp://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd"><!-- 开启注解 --><context:component-scan base-package="com.itmayiedu.service"></context:component-scan>
</beans>

3.3.5新增applicationContext-dao

<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.xsdhttp://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsdhttp://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.xsdhttp://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd"><!-- 数据库连接池 --><!-- 加载配置文件 --><context:property-placeholder location="classpath:properties/*.properties" /><!-- 数据库连接池 --><bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource"destroy-method="close"><property name="driverClassName" value="${jdbc.driver}" /><property name="url"value="jdbc:mysql://${jdbc.host}:3306/${jdbc.database}?useUnicode=true&amp;characterEncoding=utf-8&amp;zeroDateTimeBehavior=convertToNull" /><property name="username" value="${jdbc.userName}" /><property name="password" value="${jdbc.passWord}" /><!-- 初始化连接大小 --><property name="initialSize" value="${jdbc.initialSize}"></property><!-- 连接池最大数量 --><property name="maxActive" value="${jdbc.maxActive}"></property><!-- 连接池最大空闲 --><property name="maxIdle" value="${jdbc.maxIdle}"></property><!-- 连接池最小空闲 --><property name="minIdle" value="${jdbc.minIdle}"></property></bean><!-- spring和MyBatis完美整合，不需要mybatis的配置映射文件 -->  <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">  <property name="dataSource" ref="dataSource" />  <!-- 自动扫描mapping.xml文件 -->  <property name="mapperLocations" value="classpath:mappings/*.xml"></property>  </bean>  <!-- DAO接口所在包名，Spring会自动查找其下的类 -->  <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">  <property name="basePackage" value="com.itmayiedu.dao" />  <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property>  </bean>  <!-- (事务管理)transaction manager, use JtaTransactionManager for global tx -->  <bean id="transactionManager"  class="org.springframework.jdbc.datasource.DataSourceTransactionManager">  <property name="dataSource" ref="dataSource" />  </bean>
</beans>

3.3.6新增 applicationContext-trans

<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.xsdhttp://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsdhttp://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.xsdhttp://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd"><!-- 事务管理器 --><bean id="transactionManager"class="org.springframework.jdbc.datasource.DataSourceTransactionManager"><!-- 数据源 --><property name="dataSource" ref="dataSource" /></bean><!-- 通知 --><tx:advice id="txAdvice" transaction-manager="transactionManager"><tx:attributes><!-- 传播行为 --><tx:method name="save*" propagation="REQUIRED" /><tx:method name="insert*" propagation="REQUIRED" /><tx:method name="add*" propagation="REQUIRED" /><tx:method name="create*" propagation="REQUIRED" /><tx:method name="delete*" propagation="REQUIRED" /><tx:method name="update*" propagation="REQUIRED" /><tx:method name="find*" propagation="SUPPORTS" read-only="true" /><tx:method name="select*" propagation="SUPPORTS" read-only="true" /><tx:method name="get*" propagation="SUPPORTS" read-only="true" /></tx:attributes></tx:advice><!-- 切面 --><aop:config><aop:advisor advice-ref="txAdvice"pointcut="execution(* com.itmayiedu.service.*.*(..))" /></aop:config>
</beans>

3.3.7使用generator生成数据ORM映射文件
3.3.8 实现查询所有视频类型

/*** * @classDesc: 功能描述:(测试TestController)* @author: 余胜军* @createTime: 2017年9月13日 下午9:01:42* @version: v1.0* @copyright:上海每特教育科技有限公司* @QQ:644064779*/
@Controller
public class TestController {private static final String TEST = "test";@Autowiredprivate VideoTypeService videoTypeService;@RequestMapping("/test")public String test() {return TEST;}@ResponseBody@RequestMapping("/getViideType")public List<VideoType> getViideType() {System.out.println("listVideoType start");List<VideoType> listVideoType = videoTypeService.showVideoType(null);System.out.println("listVideoType end");return listVideoType;}
}
@Service
public class VideoTypeServiceImpl implements VideoTypeService {@Autowiredprivate VideoTypeMapper videoTypeMapper;public List<VideoType> showVideoType(VideoType record) {return videoTypeMapper.selectList(record);}
}
public interface VideoTypeMapper {List<VideoType> selectList(VideoType record);
}
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.itmayiedu.dao.VideoTypeMapper"><resultMap id="BaseResultMap" type="com.itmayiedu.entity.VideoType"><id column="id" property="id" jdbcType="INTEGER" /><result column="type_name" property="typeName" jdbcType="VARCHAR" /></resultMap><sql id="Base_Column_List">id, type_name</sql><select id="selectByPrimaryKey" resultMap="BaseResultMap"parameterType="java.lang.Integer">select<include refid="Base_Column_List" />from video_typewhere id = #{id,jdbcType=INTEGER}</select><delete id="deleteByPrimaryKey" parameterType="java.lang.Integer">delete fromvideo_typewhere id = #{id,jdbcType=INTEGER}</delete><insert id="insert" parameterType="com.itmayiedu.entity.VideoType">insert into video_type (id,type_name)values (#{id,jdbcType=INTEGER},#{typeName,jdbcType=VARCHAR})</insert><insert id="insertSelective" parameterType="com.itmayiedu.entity.VideoType">insert into video_type<trim prefix="(" suffix=")" suffixOverrides=","><if test="id != null">id,</if><if test="typeName != null">type_name,</if></trim><trim prefix="values (" suffix=")" suffixOverrides=","><if test="id != null">#{id,jdbcType=INTEGER},</if><if test="typeName != null">#{typeName,jdbcType=VARCHAR},</if></trim></insert><update id="updateByPrimaryKeySelective" parameterType="com.itmayiedu.entity.VideoType">update video_type<set><if test="typeName != null">type_name = #{typeName,jdbcType=VARCHAR},</if></set>where id = #{id,jdbcType=INTEGER}</update><update id="updateByPrimaryKey" parameterType="com.itmayiedu.entity.VideoType">update video_typeset type_name = #{typeName,jdbcType=VARCHAR}where id =#{id,jdbcType=INTEGER}</update><select id="selectList" resultMap="BaseResultMap"parameterType="com.itmayiedu.entity.VideoType">select<include refid="Base_Column_List" />from video_typewhere1=1<if test="id != null">and #{id,jdbcType=INTEGER},</if><if test="typeName != null">and #{typeName,jdbcType=VARCHAR},</if></select></mapper>

3.3.9 web.xml配置加载spring

<!-- 加载spring容器 --><context-param><param-name>contextConfigLocation</param-name><param-value>classpath:spring/applicationContext-*.xml</param-value></context-param><listener><listener-class>org.springframework.web.context.ContextLoaderListener</listener-class></listener>

3.3.10 运行结果解决406
使用SpringMVC返回json格式,返回状态406,表示SpringMVC没有集成JSON转换器
解决办法:

<!-- 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Spring MVC的注解功能，完成请求和注解POJO的映射 --><beanclass="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter"><property name="messageConverters"><list><ref bean="mappingJacksonHttpMessageConverter" /><!-- json转换器 --></list></property></bean>

Ok SpringMVC+Mybatis+Spring+Maven环境整合成功!

3.4 Spring整合log4j

3.4.1创建log4j.properties
在resources/properties下创建log4j.properties文件

### set log levels ###
log4j.rootLogger =INFO,DEBUG, stdout , Rlog4j.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 = [%-5p] %d{yyyy-MM-dd HH:mm:ss,SSS} method:%l%n%m%nlog4j.appender.D = org.apache.log4j.DailyRollingFileAppender
log4j.appender.D.File = E://logs/log.log
log4j.appender.D.Append = true
log4j.appender.D.Threshold = DEBUG
log4j.appender.D.layout = org.apache.log4j.PatternLayout
log4j.appender.D.layout.ConversionPattern = %-d{yyyy-MM-dd HH:mm:ss}  [ %t:%r ] - [ %p ]  %m%nlog4j.appender.E = org.apache.log4j.DailyRollingFileAppender
log4j.appender.E.File =E://logs/error.log
log4j.appender.E.Append = true
log4j.appender.E.Threshold = ERROR
log4j.appender.E.layout = org.apache.log4j.PatternLayout
log4j.appender.E.layout.ConversionPattern = %-d{yyyy-MM-dd HH:mm:ss}  [ %t:%r ] - [ %p ]  %m%n

3.4.2web.xml加载 log4j.properties

<!--设置log4j的配置文件位置 --><context-param><param-name>log4jConfigLocation</param-name><param-value>/WEB-INF/classes/properties/log4j.properties</param-value></context-param><!--使用监听加载log4j的配置文件 --><listener><listener-class>org.springframework.web.util.Log4jConfigListener</listener-class></listener>

使用API
private static Logger log = Logger.getLogger(TestController.class);

四、后台管理

4.1 搭建编写视频查询页面

步骤:创建JSP页面,引入C标签

<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>

4.2 实现后台视频查询页面

4.2.1查询jsp页面

<%@ page language="java" contentType="text/html; charset=UTF-8"pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>后台管理系统</title>
</head>
<body><center><h1>蚂蚁视频后台管理系统</h1><a href="locaAddVideo">添加资源</a><table style="BORDER-COLLAPSE: collapse; text-align: center;"borderColor=#000000 height=40 cellPadding=1 width="70%"align="center" border=1><thead><tr><th>图片</th><th>视频名称</th><th>视频类型</th><th>预览视频</th></tr></thead><tbody><c:forEach items="${listVideoInfo}" var="p"><tr style="font-size: 18px"><td><img alt="" width="150px;" height="150px;"src="/static/imgs/${p.videoUrl}"></td><td>${p.videoName}</td><td>${p.typeName}</td><td><a href="videoDetails?id=${p.id}" style='text-decoration:none;'>预览视频</a></td></tr></c:forEach></tbody></table></center>
</body>
</html>

42.2编写XML SQL 语句

<select id="selectAll" parameterType="com.itmayiedu.entity.VideoInfo"resultType="com.itmayiedu.entity.VideoInfo">select a.id as id,a.video_name as videoName, a.video_html as videoHtml ,a.video_url as videoUrl, a.video_del as videoDel
, b.type_name as typeName
from video_info  as a  inner join video_type as b  on a.video_type_id=b.id;</select>

4.2.3 完成页面展示

4.3 后台添加资源管理

4.3.1 创建上传资源页面

<%@ page language="java" contentType="text/html; charset=UTF-8"pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>添加视频资源</title>
</head>
<body><center><h1>蚂蚁视频后台添加视频资源</h1><form action="addVideo" style="font-size: 14px;" method="post"ENCTYPE="multipart/form-data"><table><tr><td>视频名称:</td><td><input type="text" name=videoName></td></tr><tr><td>视频类型:</td><td><select name="videoTypeId" style="width: 170px;"><c:forEach items="${listVideoType}" var="p"><option value="${p.id}">${p.typeName}</option></c:forEach></select></td></tr><tr><td>优酷播放URL:</td><td><textarea rows="10" cols="30" name="videoHtml"></textarea></td></tr><tr><td>上传封面:</td><td><input type="file" name="file"></td></tr><tr> <td colspan="2"><input type="submit" value="提交"></td></tr></table></form></center>
</body>
</html>

4.3.2 springmvc.xml文件中新增上传文件配置

<!-- 支持上传文件 --><bean id="multipartResolver"class="org.springframework.web.multipart.commons.CommonsMultipartResolver" />

4.3.3 后端代码上传文件

@RequestMapping("/addVideo")public String addVideo(@RequestParam(value = "file", required = false) MultipartFile file, VideoInfo videoInfo,HttpServletRequest req, HttpServletResponse res) {try {// 获取当前上下文String path = req.getSession().getServletContext().getRealPath("/static/imgs");// 文件名称String newName = System.currentTimeMillis() + ".png";File targetFile = new File(path, newName);// 文件夹不存在,则创建文件夹if (!targetFile.exists()) {targetFile.mkdirs();}// 保存try {file.transferTo(targetFile);} catch (Exception e) {log.error(e);}videoInfo.setVideoUrl(newName);videoInfoService.addVideoInfo(videoInfo);req.setAttribute("result", "封面上传成功!");return "redirect:/videoManag";} catch (Exception e) {log.error(e);req.setAttribute("result", "上传失败!");return LOCAVIDEO;}}

4.4 视频详情页面

4.4.1视频详情页面

<%@ page language="java" contentType="text/html; charset=UTF-8"pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>${videoInfo.videoName}视频详情</title>
</head>
<body><center><h1>${videoInfo.videoName}</h1><iframe height=600 width=600 src='${videoInfo.videoHtml}'frameborder=0'allowfullscreen'></iframe></center></body>
</html>

4.4.2视频详情后台代码

@RequestMapping("/videoDetails")public String videoDetails(int id, HttpServletRequest request) {VideoInfo videoInfo = videoInfoService.getVideoInfo(id);request.setAttribute("videoInfo", videoInfo);return VIDEODETAILS;}

4.6静态资源访问404原因

     <mvc:annotation-driven /><mvc:resources mapping="/static/imgs/**" location="static/imgs/" /><mvc:resources mapping="/static/easyui/**" location="static/easyui/" /><mvc:resources mapping="/static/js/**" location="static/js/" /><mvc:resources mapping="/static/css/**" location="static/css/" />

4.7整合pagehelper分页查询

4.7.1 将pagehelper版本修改为3.6.4

4.7.2 新增mybatis-config.xml文件

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE configurationPUBLIC "-//mybatis.org//DTD Config 3.0//EN""http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration><!-- 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"/></plugin></plugins>
</configuration>

4.7.3 applicationContext-dao.xml加载mybatis-config.xml

 <!-- spring和MyBatis完美整合，不需要mybatis的配置映射文件 --><bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"><property name="dataSource" ref="dataSource" /><!-- 自动扫描mapping.xml文件 --><property name="mapperLocations" value="classpath:mappings/*.xml"></property><property name="configLocation" value="classpath:spring/mybatis-config.xml" /></bean>

4.7.4 Java代码使用

@RequestMapping("/indexVideo")public String indexVideo(HttpServletRequest request, int pageIndex) {Page page = PageHelper.startPage(pageIndex, 2);request.setAttribute("listVideo", videoInfoService.getVoideAll(null));request.setAttribute("pageSize", page.getPages());return INDEXVIDEO;}

4.7.5 前端代码

 <a style="font-size: 20px;" href="indexVideo?pageIndex=1">首页</a><c:forEach begin="1" end="${pageSize}" var="p"><a style="font-size: 20px;" href="indexVideo?pageIndex=${p}">${p}</a></c:forEach><a style="font-size: 20px;" href="indexVideo?pageIndex=${pageSize}">尾页</a>

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