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@ -47,7 +47,7 @@ public class ExperimentalClassService { |
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return resp; |
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} |
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//实验班级删除学生
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//实验班级删除学生
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public HashMap<String, Object> experimentClassDeleteStudent(List<Student> student){ |
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HashMap<String, Object> resp = new HashMap<String, Object>(); |
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try { |
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@ -156,62 +156,6 @@ public class ExperimentalClassService { |
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return resp; |
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} |
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//新增学生
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public HashMap<String, Object> addStudent(ExperimentalClassVo vo){ |
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HashMap<String, Object> resp = new HashMap<String,Object>(); |
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ExperimentalClass experimentalClass=vo.getExperimentalClass(); |
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List<Student> studeList=vo.getStudentList(); |
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//存储班级原有的学生
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List<Integer> oldstudeId=new ArrayList<Integer>(); |
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//新增的学生
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List<Integer> newstudeId=new ArrayList<Integer>(); |
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try { |
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Integer experimentalClassId=experimentalClass.getExperimentalClassId(); |
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List<Student> students=experimentalClassMapper.querystudent(experimentalClassId); |
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//取出学生id
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for (Student student : students) { |
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oldstudeId.add(student.getStudentId()); |
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} |
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//得到要添加的学生和要删除的学生
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for (int i = 0; i < studeList.size(); i++) { |
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Integer id=studeList.get(i).getStudentId(); |
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if(oldstudeId.contains(id)) {//新增的学生如果在数据库中,则删除oldstudeId中的学生
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studeList.remove(i); |
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oldstudeId.remove(id); |
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i--; |
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}else {//新增的学生没有在数据库中,存储起来,在关系表中绑定
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newstudeId.add(id); |
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} |
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} |
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//在实验班级绑定新学生
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if(!newstudeId.isEmpty()&&newstudeId.size()>0) { |
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for (int i=0;i<newstudeId.size();i++) { |
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Student student=new Student(); |
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student.setStudentId(newstudeId.get(i)); |
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student.setIntExperimentalClassId(experimentalClassId); |
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experimentalClassMapper.experimentClassAddStudent(student); |
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} |
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} |
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//删除学生
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if(!oldstudeId.isEmpty()&&newstudeId.size()>0) { |
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for (int i=0;i<oldstudeId.size();i++) { |
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Student student=new Student(); |
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student.setStudentId(oldstudeId.get(i)); |
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student.setIntExperimentalClassId(experimentalClassId); |
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experimentalClassMapper.experimentClassDeleteStudent(student); |
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} |
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} |
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resp.put("retcode", 200); |
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} catch (RuntimeException e) { |
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logger.error(e.getMessage()); |
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resp.put("retcode", 500); |
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resp.put("retvalue", "Inquiry Failed"); |
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return resp; |
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} |
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return resp; |
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} |
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//新增学生显示数据
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public HashMap<String, Object> queryexperimentalClass(Integer experimentalClassId){ |
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