增加乐器采购清单确认接口

mec-biz/src/main/java/com/ym/mec/biz/service/impl/ClassGroupServiceImpl.java

@@ -898,16 +898,8 @@ public class ClassGroupServiceImpl extends BaseServiceImpl<Integer, ClassGroup>
         }
         List<Subject> subjectList = subjectService.findBySubjectByIdList(subjectIdSet);
 
-        String subjectIds = "";
-        String subjectNames = "";
-        for (Subject subject : subjectList) {
-            subjectIds += subject.getId() + ",";
-            subjectNames += subject.getName() + "/";
-        }
-
-        subjectIds = subjectIds.substring(0, subjectIds.length() - 1);
-        subjectNames = subjectNames.substring(0, subjectNames.length() - 1);
-
+        String subjectIds = subjectList.stream().map(subject -> subject.getId().toString()).collect(Collectors.joining(","));
+        String subjectNames = subjectList.stream().map(subject -> subject.getName()).collect(Collectors.joining("/"));
 
         //1、新建班级
         ClassGroup classGroup = new ClassGroup();
@@ -1111,16 +1103,8 @@ public class ClassGroupServiceImpl extends BaseServiceImpl<Integer, ClassGroup>
         }
         List<Subject> subjectList = subjectService.findBySubjectByIdList(subjectIdSet);
 
-        String subjectIds = "";
-        String subjectNames = "";
-        for (Subject subject : subjectList) {
-            subjectIds += subject.getId() + ",";
-            subjectNames += subject.getName() + "/";
-        }
-
-        subjectIds = subjectIds.substring(0, subjectIds.length() - 1);
-        subjectNames = subjectNames.substring(0, subjectNames.length() - 1);
-
+        String subjectIds = subjectList.stream().map(subject -> subject.getId().toString()).collect(Collectors.joining(","));
+        String subjectNames = subjectList.stream().map(subject -> subject.getName()).collect(Collectors.joining("/"));
 
         //1、新建班级
         ClassGroup classGroup = new ClassGroup();
@@ -1319,16 +1303,8 @@ public class ClassGroupServiceImpl extends BaseServiceImpl<Integer, ClassGroup>
         }
         List<Subject> subjectList = subjectService.findBySubjectByIdList(subjectIdSet);
 
-        String subjectIds = "";
-        String subjectNames = "";
-        for (Subject subject : subjectList) {
-            subjectIds += subject.getId() + ",";
-            subjectNames += subject.getName() + "/";
-        }
-
-        subjectIds = subjectIds.substring(0, subjectIds.length() - 1);
-        subjectNames = subjectNames.substring(0, subjectNames.length() - 1);
-
+        String subjectIds = subjectList.stream().map(subject -> subject.getId().toString()).collect(Collectors.joining(","));
+        String subjectNames = subjectList.stream().map(subject -> subject.getName()).collect(Collectors.joining("/"));
 
         //1、新建班级
         ClassGroup classGroup = new ClassGroup();