SpringBoot+thymeleaf怎么实现读取视频列表并播放视频功能

效果

Springboot播放视频

实现过程

后端程序示例

1. Controller层示例

返回数据库数据时，使用了pagehelp当中的PageInfo，为了后期扩展分页功能，正常写法返回值类型应为实体类Video.

package com.dvms.controller;
/*
 *文件名: VideoController
 *创建者: CJW
 *创建时间:2022/4/14 16:40
 *描述: TODO
 */
import com.dvms.entity.Video;
import com.dvms.service.ParamoduleService;
import com.github.pagehelper.PageInfo;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
@Controller
public class VideoController {
    @Autowired
    private ParamoduleService paramoduleService;
    //查出记录
    @RequestMapping("/angle/findvideoRecord")
    public String findvideorecords(Model model){
        System.out.println(paramoduleService.findvideorecord());
        PageInfo<Video> videoRecord = new PageInfo<>(paramoduleService.findvideorecord());
        model.addAttribute("videorecord", videoRecord);
        return "angle/videorecord";
    }
    // 查出视频地址
    @RequestMapping("/angle/findvideo")
    public String findvideo(String id, String filenamev, Model model){
        System.out.println(id);
        String videopath = paramoduleService.findvideo(id);
        System.out.println(videopath);
        model.addAttribute("videourl",videopath);
        model.addAttribute("videoname",filenamev);
        
        return "angle/videoshow";
}

2. Service层

package com.dvms.service;

import com.dvms.entity.Record;
import com.dvms.entity.Video;

import java.util.List;
import java.util.Map;

/*
 *文件名: ParamoduleService
 *创建者: CJW
 *创建时间:2022/1/15 10:54
 *描述: TODO
 */
public interface ParamoduleService {

    String findvideo(String id);

    List<Video> findvideorecord();

}

3. ServiceImpl层

package com.dvms.service.Impl;

import com.dvms.dao.ParamoduleDao;
import com.dvms.entity.Record;
import com.dvms.entity.Video;
import com.dvms.service.ParamoduleService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;
import java.util.Map;

/*
 *文件名: ParamoduleServiceImpl
 *创建者: CJW
 *创建时间:2022/1/15 10:55
 *描述: TODO
 */
@Service
public class ParamoduleServiceImpl implements ParamoduleService {

    @Autowired
    private ParamoduleDao paramoduleDao;

    //查出视频文件地址
    @Override
    public String findvideo(String id){
        return paramoduleDao.findvideo(id);
    }
    //查出视频记录
    @Override
    public List<Video> findvideorecord(){
        return paramoduleDao.findvideorecord();
    }
}

4. dao(mapper)层

package com.dvms.dao;

import com.dvms.entity.Record;
import com.dvms.entity.Video;
import org.springframework.stereotype.Repository;

import java.util.List;
import java.util.Map;

/*
 *文件名: ParamoduleDao
 *创建者: CJW
 *创建时间:2022/1/15 10:52
 *描述: TODO
 */

@Repository
public interface ParamoduleDao {

     String findvideo(String id);

     List<Video> findvideorecord();
}

4. entity(pojo)层

package com.dvms.entity;

/*
 *文件名: Video
 *创建者: CJW
 *创建时间:2022/4/14 16:17
 *描述: TODO
 */

import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import lombok.ToString;
import lombok.experimental.Accessors;

@Data
@ToString
@AllArgsConstructor
@NoArgsConstructor
@Accessors(chain = true) //链式调用

public class Video {

    private String id;
    private String filename;
    private String filepath;

}

5. daoMapper.xml

<?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.dvms.dao.ParamoduleDao">

    <!--查询存在视频-->
    <select id="findvideo" resultType="String">
        select filepath from video where id=#{id}
    </select>

    <!--查询存在视频记录-->
    <select id="findvideorecord" resultType="Video">
        select id,filename,filepath from video
    </select>

</mapper>

6. video数据库表结构

前端程序示例

前端需引入thymeleaf、bootstrap等

1. videorecord.html

		<div class="main col-md-9 ml-sm-auto col-lg-10 pt-3 px-4">
			<!-- MAIN CONTENT -->
			<div class="main-content">
				<div class="container-fluid">
					<h4 class="page-title">视频管理</h4>
					<div class="row">
						<div class="col-md-15">
							<!-- BASIC TABLE -->
							<div class="panel">
								<div class="panel-heading">
									<div><h4 class="panel-title" >视频记录</h4></div>
									<!--<hr >-->
								</div>
								<div class="panel-body">
									<table class="table table-bordered table-sm table-hover">
										<tr class="table_header" >
											<td hidden>
												ID
											</td>
											<td class="text-center">
												视频文件名
											</td>
											<td class="text-center">
												操作
											</td>
										</tr>
										<tr th:class="${rowstate.odd}?&#39;row1&#39;:&#39;row2&#39;" th:each="video,rowstate:${videorecord.list}">
											<td hidden>
												<span th:text="${video.id}"></span>
											</td>

											<td class="text-center">
												<span th:text="${video.filename}"></span>
											</td>
											<td class="text-center">
												<a type="button" class="btn btn-info btn-xs" th:href="@{/angle/findvideo(id=${video.id},filenamev=${video.filename})}" rel="external nofollow" >播放</a> 
												<a type="button" class="btn btn-info btn-xs" th:href="@{/angle/findvideo(id=${video.id})}" rel="external nofollow" >下载</a> 

											</td>
										</tr>
									</table>
									<div class="modal-footer no-margin-top">
										
									</div>
								</div>
							</div>
							<!-- END CONDENSED TABLE -->
						</div>
					</div>
				</div>
			</div>
			<!-- END MAIN CONTENT -->
		</div>

2. videoshow.html

		<div class="main col-md-9 ml-sm-auto col-lg-10 pt-3 px-4">
			<!-- MAIN CONTENT -->
			<div class="main-content">
				<div class="container-fluid">
					<h4 class="page-title">播放视频示例</h4>
							<div class="panel">
									<div class="panel-body">
									<div class="dropdown" >
                                        <a ><span>当前播放视频：</span><span  th:text="${videoname}"></span></a>

									</div>

									</div>
								</div>

					<div class="col-md-15">
							<!-- BASIC TABLE -->
							<div class="panel">
								<div class="panel-heading">
								<div class="panel-body">
									<table class="table  table-sm table-hover">
										<tr  >

											<td>
												XXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
                                            </td>
											<td >
												<!--<img th:src="${imageurl}">-->
												<video align="center"width="800" height="550" controls>
													<source th:src="${videourl}" type="video/mp4">
													您的浏览器不支持 HTML5 video 标签。
												</video>
											</td>
											<td>
												XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
                                            </td>
										</tr>
									</table>
									<div class="modal-footer no-margin-top">
									</div>
                                    <div>
                                    </div>
                                </div>
							</div>
						</div>
					</div>
				</div>
			</div>
			<!-- END MAIN CONTENT -->
		</div>

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