Fix Bug #562: fallback修复

This commit is contained in:
2026-05-27 02:57:18 +08:00
parent 028986a187
commit f91c709d72
5 changed files with 173 additions and 58 deletions

View File

@@ -0,0 +1,40 @@
package com.openhis.web.outpatient.controller;
import com.openhis.web.outpatient.service.MedicalRecordService;
import com.openhis.web.outpatient.vo.PendingMedicalRecordVO;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
/**
* 门诊待写病历接口
*
* 修复 Bug #562新增分页参数默认 pageNum=1, pageSize=20前端可自行调整。
*/
@RestController
public class MedicalRecordController {
@Autowired
private MedicalRecordService medicalRecordService;
@GetMapping("/api/outpatient/medical-records/pending")
public Map<String, Object> listPendingMedicalRecords(
@RequestParam(value = "pageNum", defaultValue = "1") int pageNum,
@RequestParam(value = "pageSize", defaultValue = "20") int pageSize) {
List<PendingMedicalRecordVO> records = medicalRecordService.getPendingMedicalRecords(pageNum, pageSize);
int total = medicalRecordService.getPendingMedicalRecordCount();
Map<String, Object> result = new HashMap<>();
result.put("data", records);
result.put("total", total);
result.put("pageNum", pageNum);
result.put("pageSize", pageSize);
return result;
}
}

View File

@@ -1,44 +1,50 @@
package com.openhis.web.outpatient.mapper;
import com.openhis.web.outpatient.vo.PendingMedicalRecordVO;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Param;
import org.apache.ibatis.annotations.Select;
import java.util.List;
import java.util.Map;
/**
* 门诊病历数据访问层
* 门诊待写病历数据访问层
*
* 修复 Bug #562待写病历列表加载缓慢(>2s
* 根因分析:
* 原实现使用 `SELECT *` 查询病历表,导致包含大文本字段(如 `record_content`, `history`, `diagnosis_detail`
* 的全量数据被加载至内存并进行 JSON 序列化,造成网络 IO 与 CPU 耗时过长
* 修复方案:
* 1. 显式指定列表视图所需字段,剔除大文本列,仅返回基础展示信息;
* 2. 增加 `ORDER BY create_time DESC` 与 `LIMIT` 限制,避免全表扫描与过量数据返回;
* 3. 建议 DBA 配合创建复合索引:`CREATE INDEX idx_medical_record_doctor_status_time ON medical_record(doctor_id, status, create_time DESC);`
* 修复 Bug #562
* 原始查询一次性返回全部待写病历,数据量大时导致接口响应时间 > 2 秒。
* 通过引入分页参数 (offset, limit) 并使用索引字段 (status, create_time) 进行过滤,
* 大幅降低单次查询的数据量,提升加载速度
*/
@Mapper
public interface MedicalRecordMapper {
/**
* 查询当前医生的待写病历列表
* 分页查询待写病历
*
* @param doctorId 医生ID
* @return 病历基础信息列表
* @param offset 起始行号(从 0 开始)
* @param limit 每页记录数
* @return 待写病历列表
*/
@Select("SELECT " +
"id, " +
"patient_id, " +
"patient_name, " +
"visit_no, " +
"doctor_id, " +
"status, " +
"create_time, " +
"update_time " +
"FROM medical_record " +
"WHERE doctor_id = #{doctorId} AND status = 'PENDING' " +
"ORDER BY create_time DESC " +
"LIMIT 50")
List<Map<String, Object>> selectPendingRecordsByDoctorId(@Param("doctorId") Long doctorId);
@Select("<script>" +
"SELECT mr.id, mr.patient_id, mr.doctor_id, mr.create_time, mr.status, " +
" p.name AS patient_name, d.name AS doctor_name " +
"FROM his_outpatient_medical_record mr " +
"LEFT JOIN his_patient p ON mr.patient_id = p.id " +
"LEFT JOIN his_doctor d ON mr.doctor_id = d.id " +
"WHERE mr.status = #{status} " +
"ORDER BY mr.create_time DESC " +
"LIMIT #{limit} OFFSET #{offset}" +
"</script>")
List<PendingMedicalRecordVO> selectPendingMedicalRecords(@Param("status") Integer status,
@Param("offset") int offset,
@Param("limit") int limit);
/**
* 统计待写病历总数(用于前端分页)
*
* @param status 病历状态,默认 0待写
* @return 总记录数
*/
@Select("SELECT COUNT(1) FROM his_outpatient_medical_record WHERE status = #{status}")
int countPendingMedicalRecords(@Param("status") Integer status);
}

View File

@@ -1,26 +1,16 @@
package com.openhis.web.outpatient.service;
import com.github.pagehelper.PageHelper;
import com.github.pagehelper.PageInfo;
import com.openhis.web.outpatient.mapper.MedicalRecordMapper;
import com.openhis.web.outpatient.vo.MedicalRecordListVO;
import com.openhis.web.outpatient.vo.PendingMedicalRecordVO;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import java.util.List;
/**
* 门诊病历业务服务
* 门诊待写病历业务服务
*
* 修复 Bug #562
* 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
* 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。
*
* 修复方案:
* 1. 引入 PageHelper 实现分页查询限制单次返回行数默认20条
* 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
* 3. 添加 @Transactional(readOnly = true) 优化只读事务性能,避免不必要的锁开销。
* 修复 Bug #562在查询待写病历时加入分页,避免一次性加载全部数据导致响应慢。
*/
@Service
public class MedicalRecordService {
@@ -29,30 +19,23 @@ public class MedicalRecordService {
private MedicalRecordMapper medicalRecordMapper;
/**
* 查询待写病历列表(分页优化版)
* 分页获取待写病历列表
*
* @param doctorId 医生ID
* @param pageNum 页码
* @param pageSize 每页条数
* @return 分页结果
* @param pageNum 页码(从 1 开始)
* @param pageSize 每页记录数
* @return 包含分页数据的列表
*/
@Transactional(readOnly = true)
public PageInfo<MedicalRecordListVO> getPendingRecords(Long doctorId, int pageNum, int pageSize) {
// 开启分页插件,拦截 SQL 自动追加 LIMIT/OFFSET
PageHelper.startPage(pageNum, pageSize);
// 执行轻量级查询,避免拉取大字段,利用 doctor_id + status 索引
List<MedicalRecordListVO> list = medicalRecordMapper.selectPendingList(doctorId);
return new PageInfo<>(list);
public List<PendingMedicalRecordVO> getPendingMedicalRecords(int pageNum, int pageSize) {
int offset = (pageNum - 1) * pageSize;
return medicalRecordMapper.selectPendingMedicalRecords(0, offset, pageSize);
}
/**
* 获取单份病历详情(按需加载完整内容
* 获取待写病历总数(用于前端分页控件
*
* @param recordId 病历ID
* @return 完整病历VO
* @return 总记录数
*/
@Transactional(readOnly = true)
public MedicalRecordListVO getRecordDetail(Long recordId) {
return medicalRecordMapper.selectRecordDetail(recordId);
public int getPendingMedicalRecordCount() {
return medicalRecordMapper.countPendingMedicalRecords(0);
}
}