init

server-db/src/main/java/cn/exploring/engine/server/db/service/StudentInfoService.java

+package cn.exploring.engine.server.db.service;
+
+import cn.exploring.engine.server.db.dao.StudentInfoMapper;
+import cn.exploring.engine.server.db.domain.StudentInfo;
+import cn.exploring.engine.server.db.domain.StudentInfoExample;
+import org.springframework.stereotype.Service;
+import org.springframework.util.StringUtils;
+
+import javax.annotation.Resource;
+import java.time.LocalDateTime;
+import java.util.List;
+
+@Service
+public class StudentInfoService {
+
+    @Resource
+    StudentInfoMapper studentInfoMapper;
+
+    /**
+     * 添加
+     * @param studentInfo
+     * @return
+     */
+    public Object addStudentInfo(StudentInfo studentInfo) {
+        LocalDateTime now = LocalDateTime.now();
+        studentInfo.setAddTime(now);
+        studentInfo.setUpdateTime(now);
+        studentInfoMapper.insertSelective(studentInfo);
+        return "添加成功";
+    }
+
+    /**
+     * 更新数据
+     * @param studentInfo
+     * @return
+     */
+    public Object updateStudentInfo(StudentInfo studentInfo) {
+        studentInfo.setUpdateTime(LocalDateTime.now());
+        studentInfoMapper.updateByPrimaryKey(studentInfo);
+        return "修改成功";
+    }
+
+    /**
+     * 批量删除数据
+     * @param idList
+     * @return
+     */
+    public Object batchDeleted(List<Integer> idList) {
+        List<StudentInfo> studentInfoList = selectStudentInfo(null, null, idList);
+        studentInfoList.forEach(x -> {
+            x.setDeleted(false);
+            updateStudentInfo(x);
+        });
+        return "batch deleted  OK";
+    }
+
+    /**
+     * 检索学生相关的信息
+     * @param studentName
+     * @param studentId
+     * @return
+     */
+    public List<StudentInfo> selectStudentInfo(String studentName, String studentId, List<Integer> idList) {
+        StudentInfoExample example = new StudentInfoExample();
+        StudentInfoExample.Criteria criteria = example.createCriteria();
+        criteria.andDeletedEqualTo(false);
+        if (!StringUtils.isEmpty(studentName)) {
+            criteria.andNameLike("%" + studentName + "%");
+        }
+        if (!StringUtils.isEmpty(studentId)) {
+            criteria.andStudentUniqueIdEqualTo(studentId);
+        }
+        if (idList != null && idList.size() > 0) {
+            criteria.andIdIn(idList);
+        }
+        return studentInfoMapper.selectByExample(example);
+    }
+
+
+
+}