学习记录

pom.xml

@@ -221,6 +221,25 @@
             <artifactId>commons-lang</artifactId>
             <version>2.6</version>
         </dependency>
+
+
+<!--        文件下载-->
+        <dependency>
+            <groupId>commons-fileupload</groupId>
+            <artifactId>commons-fileupload</artifactId>
+            <version>1.3.1</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.httpcomponents</groupId>
+            <artifactId>httpcore</artifactId>
+            <version>4.4.10</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.httpcomponents</groupId>
+            <artifactId>httpclient</artifactId>
+            <version>4.5.6</version>
+        </dependency>
+
     </dependencies>
 
 

src/main/java/com/teaching/backend/config/NonStaticResourceHttpRequestHandler.java

@@ -0,0 +1,23 @@
+package com.teaching.backend.config;
+
+import org.springframework.core.io.FileSystemResource;
+import org.springframework.core.io.Resource;
+import org.springframework.stereotype.Component;
+import org.springframework.web.servlet.resource.ResourceHttpRequestHandler;
+
+import javax.servlet.http.HttpServletRequest;
+
+/**
+ * @author longge93
+ */
+@Component
+public class NonStaticResourceHttpRequestHandler extends ResourceHttpRequestHandler {
+
+    public final static String ATTR_FILE = "NON-STATIC-FILE";
+
+    @Override
+    protected Resource getResource(HttpServletRequest request) {
+        String filePath =  (String) request.getAttribute(ATTR_FILE);
+        return new FileSystemResource(filePath);
+    }
+}

src/main/java/com/teaching/backend/controller/records/BaseSourceApiController.java

@@ -0,0 +1,46 @@
+package com.teaching.backend.controller.records;
+
+import com.teaching.backend.config.NonStaticResourceHttpRequestHandler;
+import org.mybatis.logging.Logger;
+import org.mybatis.logging.LoggerFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestMethod;
+import org.springframework.web.bind.annotation.RestController;
+
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import java.io.File;
+import java.nio.charset.StandardCharsets;
+
+@RestController
+@RequestMapping(value = "/api/baseResource")
+public class BaseSourceApiController {
+
+
+    @Autowired
+    private NonStaticResourceHttpRequestHandler nonStaticResourceHttpRequestHandler;
+
+
+    private final Logger logger = LoggerFactory.getLogger(this.getClass());
+
+    @RequestMapping(value = "/video", method = RequestMethod.GET)
+    public void video(
+            HttpServletRequest request,
+            HttpServletResponse response
+    ) {
+        try {
+            String path = "D:/Users/Desktop/image/剪映/7.18/7月20.mp4";
+            File file = new File(path);
+            if (file.exists()) {
+                request.setAttribute(NonStaticResourceHttpRequestHandler.ATTR_FILE, path);
+                nonStaticResourceHttpRequestHandler.handleRequest(request, response);
+            } else {
+                response.setStatus(HttpServletResponse.SC_NOT_FOUND);
+                response.setCharacterEncoding(StandardCharsets.UTF_8.toString());
+            }
+        } catch (Exception e) {
+
+        }
+    }
+}

src/main/java/com/teaching/backend/controller/records/Bf.java

@@ -0,0 +1,56 @@
+package com.teaching.backend.controller.records;
+
+
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RestController;
+
+import javax.servlet.http.HttpServletResponse;
+import java.io.FileInputStream;
+import java.io.OutputStream;
+
+@RestController
+@RequestMapping("/api/bf")
+public class Bf {
+    /**
+     * 根据本地图片全路径，响应给浏览器1个图片流
+     */
+    @RequestMapping("/showImage")
+    public void showImage(HttpServletResponse response, @RequestParam("fileName")String fileName) {
+        System.out.println(fileName);
+        show(response,fileName,"image");
+    }
+
+    /**
+     * 根据本地视频全路径，响应给浏览器1个视频
+     */
+    @RequestMapping("/showVideo")
+    public void showVideo(HttpServletResponse response, @RequestParam("fileName")String fileName) {
+        show(response,fileName,"video");
+    }
+
+    /**
+     * 响应文件
+     * @param response
+     * @param fileName  文件全路径
+     * @param type  响应流类型
+     */
+    public void  show(HttpServletResponse response, String fileName,String type){
+        try{
+            FileInputStream fis = new FileInputStream(fileName); // 以byte流的方式打开文件
+            int i=fis.available(); //得到文件大小
+            System.out.println(i);
+            byte data[]=new byte[i];
+            fis.read(data);  //读数据
+            response.setContentType(type+"/*"); //设置返回的文件类型
+            OutputStream toClient=response.getOutputStream(); //得到向客户端输出二进制数据的对象
+            toClient.write(data);  //输出数据
+            toClient.flush();
+            toClient.close();
+            fis.close();
+        }catch(Exception e){
+            e.printStackTrace();
+            System.out.println("文件不存在");
+        }
+    }
+}

src/main/java/com/teaching/backend/controller/records/KnowledgeLearningRecordController.java

@@ -1,5 +1,6 @@
 package com.teaching.backend.controller.records;
 
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
 import com.teaching.backend.common.BaseResponse;
 import com.teaching.backend.common.ResultUtils;
 import com.teaching.backend.filter.ValidateParams;
@@ -7,12 +8,10 @@ import com.teaching.backend.model.entity.records.CourseLearningRecord;
 import com.teaching.backend.model.entity.records.KnowledgeLearningRecord;
 import com.teaching.backend.service.impl.records.KnowledgeLearningRecordServiceImpl;
 import io.swagger.annotations.ApiOperation;
-import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.*;
-import org.springframework.web.bind.annotation.RequestBody;
-import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.annotation.RestController;
 
 import javax.annotation.Resource;
+import java.util.List;
 
 @RestController
 @RequestMapping("/api/knowledgelearning")
@@ -27,4 +26,30 @@ public class KnowledgeLearningRecordController {
         return knowledgeLearningRecordService.saveCoursesRecords(knowledgeLearningRecord);
     }
 
+    /**
+     * 获取当前登录用户的学习知识点记录
+     * @param pagenum
+     * @param pagesize
+     * @return
+     */
+    @ApiOperation("根据用户id查询学习记录")
+    @ValidateParams({"userId"})
+    @GetMapping("/page")
+    public BaseResponse<Page> getAll(@RequestParam(value = "pagenum", defaultValue = "1") int pagenum,
+                                     @RequestParam(value = "pagesize", defaultValue = "10") int pagesize,
+                                     @RequestParam String userId,
+                                     @RequestParam String courseId){
+        return knowledgeLearningRecordService.getPage(pagenum, pagesize, userId, courseId);
+    }
+
+    /**
+     * 根据ids删除
+     * @param ids
+     * @return
+     */
+    @ApiOperation("学习记录删除")
+    @DeleteMapping("/delete")
+    public BaseResponse<String> deleteRecords(@RequestParam List<Long> ids){
+        return knowledgeLearningRecordService.removeKnowledgeRecord(ids);
+    }
 }

src/main/java/com/teaching/backend/controller/records/ResourceLearningRecordController.java

@@ -1,18 +1,23 @@
 package com.teaching.backend.controller.records;
 
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
 import com.teaching.backend.common.BaseResponse;
 import com.teaching.backend.common.ResultUtils;
+import com.teaching.backend.filter.ValidateParams;
 import com.teaching.backend.model.entity.records.KnowledgeLearningRecord;
 import com.teaching.backend.model.entity.records.ResourceLearningRecord;
 import com.teaching.backend.service.impl.records.KnowledgeLearningRecordServiceImpl;
 import com.teaching.backend.service.impl.records.ResourceLearningRecordServiceImpl;
 import io.swagger.annotations.ApiOperation;
-import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.http.MediaType;
-import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.*;
-import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.multipart.MultipartFile;
-import org.springframework.web.bind.annotation.RestController;
 
 import javax.annotation.Resource;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import java.io.File;
+import java.util.List;
 
 @RestController
 @RequestMapping("/api/resourcelearningrecords")
@@ -26,4 +31,49 @@ public class ResourceLearningRecordController {
     public BaseResponse<String> saveResourceRecords(@RequestBody ResourceLearningRecord resourceLearningRecord) {
         return resourceLearningRecordService.saveCoursesRecords(resourceLearningRecord);
     }
+
+    /**
+     * 获取当前登录用户的学习资源记录
+     * @param pagenum
+     * @param pagesize
+     * @return
+     */
+    @ApiOperation("根据用户id查询学习记录")
+    @ValidateParams({"userId"})
+    @GetMapping("/page")
+    public BaseResponse<Page> getAll(@RequestParam(value = "pagenum", defaultValue = "1") int pagenum,
+                                     @RequestParam(value = "pagesize", defaultValue = "10") int pagesize,
+                                     @RequestParam String userId,
+                                     @RequestParam String courseId,
+                                     @RequestParam String knowledgeId){
+        return resourceLearningRecordService.getPage(pagenum, pagesize, userId, knowledgeId,courseId);
+
+    }
+    /**
+     * 根据ids删除
+     * @param ids
+     * @return
+     */
+    @ApiOperation("学习记录删除")
+    @DeleteMapping("/delete")
+    public BaseResponse<String> deleteRecords(@RequestParam List<Long> ids){
+        return resourceLearningRecordService.removeResourceRecord(ids);
+    }
+
+    @ApiOperation("上传图片")
+    @PostMapping(value = "/upload", consumes = MediaType.MULTIPART_FORM_DATA_VALUE)
+    public BaseResponse<String> upload(@RequestPart("filedata") MultipartFile filedata){
+        //调用ser
+
+        //源文件
+//        File sourseFile = (File) file;
+        return ResultUtils.success("hello");
+    };
+
+    @GetMapping("/bf")
+    public BaseResponse<String> bf(@RequestParam String path, File file,HttpServletRequest request, HttpServletResponse response){
+        File sourseFile = new File(path);
+        return ResultUtils.success(path);
+    };
+
 }

src/main/java/com/teaching/backend/model/dto/upload/UploadFileParamsDto.java

@@ -0,0 +1,32 @@
+package com.teaching.backend.model.dto.upload;
+
+import lombok.Data;
+
+@Data
+public class UploadFileParamsDto {
+    /**
+     * 文件名称
+     */
+    private String filename;
+
+    /**
+     * 文件类型(文档，音频，视频)
+     */
+    private String fileType;
+    /**
+     * 文件大小
+     */
+    private Long fileSize;
+    /**
+     * 标签
+     */
+    private String tags;
+    /**
+     * 上传人
+     */
+    private String username;
+    /**
+     * 备注
+     */
+    private String remark;
+}

src/main/java/com/teaching/backend/model/entity/records/KnowledgeLearningRecord.java

@@ -37,8 +37,8 @@ public class KnowledgeLearningRecord implements Serializable {
     @TableField("knowledge_id")
     private String knowledgeId;
 
-    @ApiModelProperty(value = "知识点id")
+    @ApiModelProperty(value = "知识点名称")
-    @TableField("knowledge_id")
+    @TableField("knowledge_name")
     private String knowledgeName;
 
     @ApiModelProperty(value = "课程id")

src/main/java/com/teaching/backend/model/entity/records/ResourceLearningRecord.java

@@ -37,6 +37,10 @@ public class ResourceLearningRecord implements Serializable {
     @TableField("resource_id")
     private String resourceId;
 
+    @ApiModelProperty(value = "资源名称")
+    @TableField("resource_name")
+    private String resourceName;
+
     @ApiModelProperty(value = "知识点id")
     @TableField("knowledge_id")
     private String knowledgeId;

src/main/java/com/teaching/backend/model/vo/records/CourseLearningRecordsVo.java

@@ -17,6 +17,10 @@ public class CourseLearningRecordsVo {
      * 课程学习id
      */
     private String id;
+    /**
+     * 课程id
+     */
+    private String courseId;
     /**
      * 课程名称
      */

src/main/java/com/teaching/backend/model/vo/records/KnowledgeLearningRecordVo.java

@@ -0,0 +1,37 @@
+package com.teaching.backend.model.vo.records;
+
+import io.swagger.annotations.ApiModel;
+import lombok.Data;
+
+@Data
+@ApiModel(description = "知识点学习记录")
+public class KnowledgeLearningRecordVo {
+    /**
+     * 知识点学习id
+     */
+    private String id;
+    /**
+     * 课程id
+     */
+    private String coursesId;
+    /**
+     * 知识点id
+     */
+    private String knowledgeId;
+    /**
+     * 知识点名称
+     */
+    private String knowledgeName;
+    /**
+     * 用户id
+     */
+    private String userId;
+    /**
+     * 学习人数
+     */
+    private Integer number;
+    /**
+     * 学习时间
+     */
+    private String time;
+}

src/main/java/com/teaching/backend/model/vo/records/ResourceLearingRecordVo.java

@@ -0,0 +1,29 @@
+package com.teaching.backend.model.vo.records;
+
+import io.swagger.annotations.ApiModel;
+import lombok.Data;
+
+@Data
+@ApiModel(description = "资源学习记录")
+public class ResourceLearingRecordVo {
+    /**
+     * 资源学习id
+     */
+    private String id;
+    /**
+     * 资源名称
+     */
+    private String resourceName;
+    /**
+     * 用户id
+     */
+    private String userId;
+    /**
+     * 学习人数
+     */
+    private Integer number;
+    /**
+     * 学习时间
+     */
+    private String time;
+}

src/main/java/com/teaching/backend/service/impl/records/CourseLearningRecordServiceImpl.java

@@ -61,19 +61,21 @@ public class CourseLearningRecordServiceImpl extends ServiceImpl<CourseLearningR
         Long count = courseLearningNumberService.query()
                 .eq("course_id", courseId).count();
         //2.2判断自己是否学习过
-        Long count1 = query().eq("user_id", userId).count();
+        Long count1 = query().eq("user_id", userId).eq("course_id", courseId).count();
         if (count > 0){
             //自己没学过，人数加1
             if (count1 == 0){
                 courseLearningNumberService.update().setSql("number = number + 1").eq("course_id",courseId).update();
-//                System.out.println("用户："+userId+"第一次学这门课");
+                //System.out.println("用户："+userId+"第一次学这门课");
             }
+            //System.out.println("重复学习");
         }else {
             //该课程第一次被学，人数设置为1
             CourseLearningNumber courseLearningNumber = new CourseLearningNumber();
             courseLearningNumber.setNumber(1);
             courseLearningNumber.setCourseId(courseId);
             courseLearningNumberService.save(courseLearningNumber);
+            //System.out.println("该课程第一次被学习");
         }
         //设置人数
         String numberId = courseLearningNumberService.query().eq("course_id", courseId).one().getId();

src/main/java/com/teaching/backend/service/impl/records/KnowledgeLearningRecordServiceImpl.java

@@ -2,20 +2,30 @@ package com.teaching.backend.service.impl.records;
 
 
 
+import cn.hutool.core.bean.BeanUtil;
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
 import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
 import com.teaching.backend.common.BaseResponse;
 import com.teaching.backend.common.ResultUtils;
 import com.teaching.backend.mapper.records.KnowledgeLearningRecordMapper;
 import com.teaching.backend.model.entity.KnowGraph.KnowledgeLearningNumber;
 import com.teaching.backend.model.entity.courses.CourseLearningNumber;
+
 import com.teaching.backend.model.entity.records.KnowledgeLearningRecord;
+
+import com.teaching.backend.model.vo.records.KnowledgeLearningRecordVo;
 import com.teaching.backend.service.impl.courses.CourseLearningNumberServiceImpl;
 import com.teaching.backend.service.impl.knowledge.KnowledgeLearningNumberServiceImpl;
 import com.teaching.backend.service.records.IKnowledgeLearningRecordService;
 import org.springframework.stereotype.Service;
 
 import javax.annotation.Resource;
+import java.text.SimpleDateFormat;
 import java.time.LocalDateTime;
+import java.time.ZoneId;
+import java.util.ArrayList;
+import java.util.Date;
+import java.util.List;
 
 /**
  * <p>
@@ -44,7 +54,10 @@ public class KnowledgeLearningRecordServiceImpl extends ServiceImpl<KnowledgeLea
                 .eq("course_id", courseId)
                 .eq("knowledge_id",knowledgeId).count();
         //2.2判断自己是否学习过
-        Long count1 = query().eq("user_id", userId).count();
+        Long count1 = query()
+                .eq("user_id", userId)
+                .eq("courses_id", courseId)
+                .eq("knowledge_id",knowledgeId).count();
         if (count > 0){
             //自己没学过，人数加1
             if (count1 == 0){
@@ -68,4 +81,38 @@ public class KnowledgeLearningRecordServiceImpl extends ServiceImpl<KnowledgeLea
         save(knowledgeLearningRecord);
         return ResultUtils.success("添加成功");
     }
+
+    @Override
+    public BaseResponse<Page> getPage(int pagenum, int pagesize, String userId, String courseId) {
+        //格式化时间
+        String strDateFormat = "yyyy-MM-dd HH:mm:ss";
+        SimpleDateFormat sdf = new SimpleDateFormat(strDateFormat);
+        //分页查询
+        Page<KnowledgeLearningRecord> page = query()
+                .orderByDesc("times")
+                .eq("user_id", userId)
+                .eq("courses_id",courseId).page(new Page<>(pagenum, pagesize));
+        Page<KnowledgeLearningRecordVo> page1 = new Page<>();
+        List<KnowledgeLearningRecord> records = page.getRecords();
+        BeanUtil.copyProperties(page, page1);
+        List<KnowledgeLearningRecordVo> recordsVos = new ArrayList<>();
+        //copy集合
+        records.forEach(knowledgeLearningRecord -> {
+            KnowledgeLearningRecordVo knowledgeLearningRecordVo = new KnowledgeLearningRecordVo();
+            BeanUtil.copyProperties(knowledgeLearningRecord,knowledgeLearningRecordVo);
+            Date date = Date.from(knowledgeLearningRecord.getTimes().atZone(ZoneId.systemDefault()).toInstant());
+            knowledgeLearningRecordVo.setTime(sdf.format(date));
+//            //填充学习人数
+            knowledgeLearningRecordVo.setNumber(knowledgeLearningNumberService.getById(knowledgeLearningRecord.getNumber()).getNumber());
+            recordsVos.add(knowledgeLearningRecordVo);
+        });
+        page1.setRecords(recordsVos);
+        return ResultUtils.success(page1);
+    }
+
+    @Override
+    public BaseResponse<String> removeKnowledgeRecord(List<Long> ids) {
+        removeByIds(ids);
+        return ResultUtils.success("删除成功！");
+    }
 }

src/main/java/com/teaching/backend/service/impl/records/ResourceLearningRecordServiceImpl.java

@@ -1,18 +1,28 @@
 package com.teaching.backend.service.impl.records;
 
 
+import cn.hutool.core.bean.BeanUtil;
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
 import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
 import com.teaching.backend.common.BaseResponse;
 import com.teaching.backend.common.ResultUtils;
 import com.teaching.backend.mapper.records.ResourceLearningRecordMapper;
+import com.teaching.backend.model.entity.records.KnowledgeLearningRecord;
 import com.teaching.backend.model.entity.records.ResourceLearningRecord;
 import com.teaching.backend.model.entity.resource.ResourceLearningNumber;
+import com.teaching.backend.model.vo.records.KnowledgeLearningRecordVo;
+import com.teaching.backend.model.vo.records.ResourceLearingRecordVo;
 import com.teaching.backend.service.impl.resource.ResourceLearningNumberServiceImpl;
 import com.teaching.backend.service.records.IResourceLearningRecordService;
 import org.springframework.stereotype.Service;
 
 import javax.annotation.Resource;
+import java.text.SimpleDateFormat;
 import java.time.LocalDateTime;
+import java.time.ZoneId;
+import java.util.ArrayList;
+import java.util.Date;
+import java.util.List;
 
 /**
  * <p>
@@ -44,7 +54,11 @@ public class ResourceLearningRecordServiceImpl extends ServiceImpl<ResourceLearn
                 .eq("knowledge_id",knowledgeId)
                 .eq("resource_id",resourceId).count();
         //2.2判断自己是否学习过
-        Long count1 = query().eq("user_id", userId).count();
+        Long count1 = query()
+                .eq("user_id", userId)
+                .eq("courses_id", courseId)
+                .eq("knowledge_id",knowledgeId)
+                .eq("resource_id",resourceId).count();
         if (count > 0){
             //自己没学过，人数加1
             if (count1 == 0){
@@ -73,4 +87,41 @@ public class ResourceLearningRecordServiceImpl extends ServiceImpl<ResourceLearn
         save(resourceLearningRecord);
         return ResultUtils.success("添加成功");
     }
+
+    @Override
+    public BaseResponse<Page> getPage(int pagenum, int pagesize, String userId, String knowledgeId, String courseId) {
+//格式化时间
+        String strDateFormat = "yyyy-MM-dd HH:mm:ss";
+        SimpleDateFormat sdf = new SimpleDateFormat(strDateFormat);
+        //分页查询
+        Page<ResourceLearningRecord> page = query()
+                .orderByDesc("times")
+                .eq("user_id", userId)
+                .eq("knowledge_id",knowledgeId)
+                .eq("courses_id",courseId).page(new Page<>(pagenum, pagesize));
+        Page<ResourceLearingRecordVo> page1 = new Page<>();
+        List<ResourceLearningRecord> records = page.getRecords();
+        BeanUtil.copyProperties(page, page1);
+        List<ResourceLearingRecordVo> recordsVos = new ArrayList<>();
+        //copy集合
+        records.forEach(resourceLearningRecord -> {
+            ResourceLearingRecordVo resourceLearingRecordVo = new ResourceLearingRecordVo();
+            BeanUtil.copyProperties(resourceLearningRecord,resourceLearingRecordVo);
+            Date date = Date.from(resourceLearningRecord.getTimes().atZone(ZoneId.systemDefault()).toInstant());
+            resourceLearingRecordVo.setTime(sdf.format(date));
+//            //填充学习人数
+            resourceLearingRecordVo.setNumber(resourceLearningNumberService.getById(resourceLearningRecord.getNumber()).getNumber());
+            recordsVos.add(resourceLearingRecordVo);
+        });
+        page1.setRecords(recordsVos);
+        return ResultUtils.success(page1);
+    }
+
+    @Override
+    public BaseResponse<String> removeResourceRecord(List<Long> ids) {
+        removeByIds(ids);
+        return ResultUtils.success("删除成功！");
+    }
+
+
 }

src/main/java/com/teaching/backend/service/records/IKnowledgeLearningRecordService.java

@@ -1,10 +1,13 @@
 package com.teaching.backend.service.records;
 
 
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
 import com.baomidou.mybatisplus.extension.service.IService;
 import com.teaching.backend.common.BaseResponse;
 import com.teaching.backend.model.entity.records.KnowledgeLearningRecord;
 
+import java.util.List;
+
 /**
  * <p>
  *  服务类
@@ -16,4 +19,9 @@ import com.teaching.backend.model.entity.records.KnowledgeLearningRecord;
 public interface IKnowledgeLearningRecordService extends IService<KnowledgeLearningRecord> {
 
     BaseResponse<String> saveCoursesRecords(KnowledgeLearningRecord knowledgeLearningRecord);
+
+    BaseResponse<Page> getPage(int pagenum, int pagesize, String userId, String courseId);
+
+    BaseResponse<String> removeKnowledgeRecord(List<Long> ids);
 }
+

src/main/java/com/teaching/backend/service/records/IResourceLearningRecordService.java

@@ -1,10 +1,13 @@
 package com.teaching.backend.service.records;
 
 
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
 import com.baomidou.mybatisplus.extension.service.IService;
 import com.teaching.backend.common.BaseResponse;
 import com.teaching.backend.model.entity.records.ResourceLearningRecord;
 
+import java.util.List;
+
 /**
  * <p>
  *  服务类
@@ -16,4 +19,8 @@ import com.teaching.backend.model.entity.records.ResourceLearningRecord;
 public interface IResourceLearningRecordService extends IService<ResourceLearningRecord> {
 
     BaseResponse<String> saveCoursesRecords(ResourceLearningRecord resourceLearningRecord);
+
+    BaseResponse<Page> getPage(int pagenum, int pagesize, String userId, String knowledgeId, String courseId);
+
+    BaseResponse<String> removeResourceRecord(List<Long> ids);
 }

src/test/java/com/teaching/MinioTest.java

@@ -0,0 +1,101 @@
+package com.teaching;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.util.DigestUtils;
+
+import java.io.*;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.Comparator;
+import java.util.List;
+
+public class MinioTest {
+    //分块测试
+    @Test
+    public void testChunk() throws IOException {
+        //源文件
+        File sourseFile = new File("D:/Users/Desktop/image/剪映/7.18/7月20.mp4");
+        //分块文件存储路径
+        String chunkFilePath = "D:/Users/Desktop/image/剪映/7.18/chunk/";
+        //分块文件大小
+        int chunkSize = 1024 * 1024 * 1;
+        //分块文件个数
+        int chunkNum = (int) Math.ceil(sourseFile.length() * 1.0 / chunkSize);
+        //使用流从源文件读数据，向分块文件中写数据
+        RandomAccessFile raf_r = new RandomAccessFile(sourseFile, "r");
+        //缓存区
+        byte[] bytes = new byte[1024];
+        for (int i = 0; i < chunkNum; i++) {
+            File chunkFile = new File(chunkFilePath + i);
+            //分块文件写入流
+            RandomAccessFile raf_rw = new RandomAccessFile(chunkFile, "rw");
+            int len = -1;
+            while((len=raf_r.read(bytes)) != -1){
+                raf_rw.write(bytes, 0, len);
+                if (chunkFile.length() >= chunkSize){
+                    break;
+                }
+            }
+            raf_rw.close();
+        }
+        raf_r.close();
+    }
+
+    //将分块进行合并
+    @Test
+    public void testMerge() throws IOException {
+        //块文件目录
+        File chunkFolder = new File("D:\\Users\\Desktop\\image\\剪映\\7.18\\chunk");
+        //源文件
+        File sourseFile = new File("D:/Users/Desktop/image/剪映/7.18/7月20.mp4");
+        //合并后的文件
+        File mergeFile = new File("D:/Users/Desktop/image/剪映/7.18/7月20_merge.mp4");
+
+        //取出所有分块文件
+        File[] files = chunkFolder.listFiles();
+        //将数组转成list
+        List<File> fileList = Arrays.asList(files);
+        //对分块文件排序
+        Collections.sort(fileList, new Comparator<File>() {
+            @Override
+            public int compare(File o1, File o2) {
+                return Integer.parseInt(o1.getName()) - Integer.parseInt(o2.getName()); //升序
+            }
+        });
+        //向合并文件写的流
+        RandomAccessFile raf_rw = new RandomAccessFile(mergeFile, "rw");
+        //缓存区
+        byte[] bytes = new byte[1024];
+        //遍历分块文件，向合并的文件写
+        for (File file : fileList) {
+            //读分块的流
+            RandomAccessFile raf_r = new RandomAccessFile(file, "r");
+            int len = -1;
+            while((len = raf_r.read(bytes)) != -1){
+                raf_rw.write(bytes, 0, len);
+            }
+            raf_r.close();
+        }
+        raf_rw.close();
+        //合并文件完成后对合并的文件校验
+        FileInputStream fileInputStream_merge = new FileInputStream(mergeFile);
+        FileInputStream fileInputStream_source = new FileInputStream(sourseFile);
+        String md5_merge = DigestUtils.md5DigestAsHex(fileInputStream_merge);
+        String md5_source = DigestUtils.md5DigestAsHex(fileInputStream_source);
+        if (md5_merge.equals(md5_source)){
+            System.out.println("文件合并成功！");
+        }
+    }
+
+    //将分块文件上传到minio
+    public void uploadChunk(){
+
+    }
+
+    //调用minio接口合并分块
+
+
+    //批量清理分块文件
+
+
+}