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src/main/java/com/teaching/backend/service/impl/courses/CoursesServiceImpl.java

@@ -37,6 +37,7 @@ import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collections;
 import java.util.List;
+import java.util.stream.Collectors;
 
 /**
  * <p>
@@ -172,13 +173,58 @@ public class CoursesServiceImpl extends ServiceImpl<CoursesMapper, Courses> impl
     }
 
     @Override
-    public int countHours(String id) {
+    public List<CoursesVO> getPagePageSize(int page, int pageSize) {
-        return 0;
+        int startIndex = (page-1) * pageSize;
+        List<Courses> list = coursesMapper.getItemsByPage(startIndex, pageSize);
+//        List<Courses> list = coursesMapper.selectList(null);
+        List<CoursesVO> coursesVo = BeanUtil.copyToList(list, CoursesVO.class);
+        coursesVo = coursesVo.stream().map((item) -> {
+
+            item.setTotalHours(countHours(item.getId()));
+            item.setTotalchapter(100);
+            item.setTotalKnow(100);
+//            if (StringUtils.isBlank(item.getName()) ||
+//                    StringUtils.isBlank(item.getDescription()) ){
+//                throw new BusinessException(ErrorCode.OPERATION_ERROR,"数据格式有问题，请修改");
+//            }
+            return item;
+        }).collect(Collectors.toList());
+        return coursesVo;
+
     }
 
     @Override
-    public List<CoursesVO> getPagePageSize(int page, int pageSize) {
+    public int countHours(String id) {
-        return null;
+        Courses courses = coursesMapper.selectById(id);
+
+        Integer classhours = 0;
+        Integer theoryhours = 0;
+        Integer practicehours = 0;
+        Integer experimenthours = 0;
+        Integer otherhours = 0;
+        if (courses.getClasshours() != null) {
+            classhours = courses.getClasshours();
+        }
+
+        if (courses.getTheoryhours() != null) {
+            theoryhours = courses.getTheoryhours();
+        }
+
+        if (courses.getPracticehours() != null) {
+            practicehours = courses.getPracticehours();
+        }
+
+        if (courses.getExperimenthours() != null) {
+            experimenthours = courses.getExperimenthours();
+        }
+
+        if (courses.getOtherhours() != null) {
+            otherhours = courses.getOtherhours();
+        }
+        int total = classhours + theoryhours + practicehours + experimenthours + otherhours;
+
+        return total;
+
     }
 
     /**

src/main/resources/application.yml

@@ -10,7 +10,7 @@ spring:
     driver-class-name: com.mysql.cj.jdbc.Driver
     url: jdbc:mysql://localhost:3306/teaching_db
     username: root
-    password: root
+    password: 1234567788
 mybatis:
   configuration:
     map-underscore-to-camel-case: true