Fix Bug #562: AI修复
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package com.openhis.web.outpatient.service;
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import com.github.pagehelper.PageHelper;
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import com.github.pagehelper.PageInfo;
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import com.openhis.web.outpatient.mapper.MedicalRecordMapper;
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import com.openhis.web.outpatient.vo.MedicalRecordListVO;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.stereotype.Service;
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import org.springframework.transaction.annotation.Transactional;
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import java.util.List;
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/**
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* 门诊病历业务服务
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*
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* 修复 Bug #562:
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* 原 getPendingRecords 方法未使用分页,且关联查询了完整的病历正文(TEXT/CLOB字段),
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* 导致单次查询数据量过大、数据库响应超时,前端加载超过2秒。
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*
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* 修复方案:
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* 1. 引入 PageHelper 实现分页查询,限制单次返回行数(默认20条)。
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* 2. 切换至轻量级 Mapper 方法 selectPendingList,仅查询列表展示所需字段(排除病历正文)。
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* 3. 添加 @Transactional(readOnly = true) 优化只读事务性能,避免不必要的锁开销。
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*/
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@Service
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public class MedicalRecordService {
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@Autowired
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private MedicalRecordMapper medicalRecordMapper;
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/**
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* 查询待写病历列表(分页优化版)
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*
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* @param doctorId 医生ID
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* @param pageNum 页码
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* @param pageSize 每页条数
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* @return 分页结果
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*/
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@Transactional(readOnly = true)
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public PageInfo<MedicalRecordListVO> getPendingRecords(Long doctorId, int pageNum, int pageSize) {
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// 开启分页插件,拦截 SQL 自动追加 LIMIT/OFFSET
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PageHelper.startPage(pageNum, pageSize);
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// 执行轻量级查询,避免拉取大字段,利用 doctor_id + status 索引
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List<MedicalRecordListVO> list = medicalRecordMapper.selectPendingList(doctorId);
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return new PageInfo<>(list);
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}
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/**
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* 获取单份病历详情(按需加载完整内容)
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*
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* @param recordId 病历ID
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* @return 完整病历VO
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*/
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@Transactional(readOnly = true)
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public MedicalRecordListVO getRecordDetail(Long recordId) {
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return medicalRecordMapper.selectRecordDetail(recordId);
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}
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}
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