demand: TMS系统 - 运输管理 - 通过多线程分批处理,优化漏组批次订单一次性查询/导出10万+数据的效率
committer: heyu
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030c9fc475
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68f4b3fb4d
@ -79,26 +79,26 @@ public class EmisTmsSiteBatchMissServiceImpl extends EmisBaseService implements
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log.info("Selecting TMS site batch miss list with params: {}", emisTmsSiteBatchMiss);
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// 检查是否需要多线程优化
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// 通过检查请求参数中是否包含大分页标识
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// 通过PageHelper获取当前分页信息
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boolean useMultiThread = false;
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Integer pageSize = null;
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Integer pageNum = null;
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// 尝试从params中获取分页参数
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if (emisTmsSiteBatchMiss.getParams() != null) {
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Object pageSizeObj = emisTmsSiteBatchMiss.getParams().get("pageSize");
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Object pageNumObj = emisTmsSiteBatchMiss.getParams().get("pageNum");
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try {
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// 从PageHelper的ThreadLocal中获取分页信息
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com.github.pagehelper.Page<?> localPage = PageHelper.getLocalPage();
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if (localPage != null) {
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pageSize = localPage.getPageSize();
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pageNum = localPage.getPageNum();
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if (pageSizeObj instanceof Integer) {
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pageSize = (Integer) pageSizeObj;
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if (pageSize > 1000) {
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if (pageSize != null && pageSize > 1000) {
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useMultiThread = true;
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log.info("Detected large pageSize: {}, pageNum: {}, will use multi-thread optimization", pageSize,
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pageNum);
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}
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}
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if (pageNumObj instanceof Integer) {
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pageNum = (Integer) pageNumObj;
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}
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} catch (Exception e) {
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log.warn("Failed to get page info from PageHelper: {}", e.getMessage());
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}
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// 如果pageSize > 1000,使用多线程查询优化
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@ -192,8 +192,7 @@ public class EmisTmsSiteBatchMissServiceImpl extends EmisBaseService implements
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try {
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// 为每个线程分配查询任务
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for (int i = 0; i < threadCount; i++) {
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int start = i * RECORDS_PER_THREAD;
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int end = Math.min(start + RECORDS_PER_THREAD, pageSize);
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final int threadIndex = i;
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// 创建查询任务
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Callable<List<EmisTmsSiteBatchMiss>> task = () -> {
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@ -201,20 +200,15 @@ public class EmisTmsSiteBatchMissServiceImpl extends EmisBaseService implements
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// 创建查询参数的副本,避免线程间冲突
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EmisTmsSiteBatchMiss queryParam = createQueryParamCopy(emisTmsSiteBatchMiss);
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// 设置分页参数
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PageHelper.startPage(1, end - start);
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// 设置分页参数 - 每个线程查询1000条记录
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PageHelper.startPage(1, RECORDS_PER_THREAD);
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// 执行查询
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List<EmisTmsSiteBatchMiss> result = emisTmsSiteBatchMissMapper
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.selectEmisTmsSiteBatchMissList(queryParam);
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// 只返回当前线程负责的数据范围
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if (result.size() > start) {
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int actualEnd = Math.min(start + (end - start), result.size());
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return result.subList(start, actualEnd);
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}
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return new ArrayList<>();
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// 返回查询结果,不需要手动截取,因为PageHelper已经处理了分页
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return result != null ? result : new ArrayList<>();
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} catch (Exception e) {
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log.error("Error in thread query task", e);
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return new ArrayList<>();
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