| 提交 | 用户 | 时间 | ||
| 722af2 | 1 | package com.dl.demo.controller; |
| X | 2 | |
| 3 | import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper; | |
| 4 | import com.dl.common.core.controller.BaseController; | |
| 5 | import com.dl.common.core.domain.R; | |
| 6 | import com.dl.demo.domain.TestDemo; | |
| 7 | import com.dl.demo.mapper.TestDemoMapper; | |
| 8 | import lombok.RequiredArgsConstructor; | |
| 9 | import org.springframework.web.bind.annotation.DeleteMapping; | |
| 10 | import org.springframework.web.bind.annotation.PostMapping; | |
| 11 | import org.springframework.web.bind.annotation.RequestMapping; | |
| 12 | import org.springframework.web.bind.annotation.RestController; | |
| 13 | ||
| 14 | import java.util.ArrayList; | |
| 15 | import java.util.List; | |
| 16 | ||
| 17 | /** | |
| 18 | * 测试批量方法 | |
| 19 | * | |
| 20 | * @author Lion Li | |
| 21 | * @date 2021-05-30 | |
| 22 | */ | |
| 23 | @RequiredArgsConstructor | |
| 24 | @RestController | |
| 25 | @RequestMapping("/demo/batch") | |
| 26 | public class TestBatchController extends BaseController { | |
| 27 | ||
| 28 | /** | |
| 29 | * 为了便于测试 直接引入mapper | |
| 30 | */ | |
| 31 | private final TestDemoMapper testDemoMapper; | |
| 32 | ||
| 33 | /** | |
| 34 | * 新增批量方法 可完美替代 saveBatch 秒级插入上万数据 (对mysql负荷较大) | |
| 35 | * <p> | |
| 36 | * 3.5.0 版本 增加 rewriteBatchedStatements=true 批处理参数 使 MP 原生批处理可以达到同样的速度 | |
| 37 | */ | |
| 38 | @PostMapping("/add") | |
| 39 | // @DS("slave") | |
| 40 | public R<Void> add() { | |
| 41 | List<TestDemo> list = new ArrayList<>(); | |
| 42 | for (int i = 0; i < 1000; i++) { | |
| 43 | TestDemo testDemo = new TestDemo(); | |
| 44 | testDemo.setOrderNum(-1); | |
| 45 | testDemo.setTestKey("批量新增"); | |
| 46 | testDemo.setValue("测试新增"); | |
| 47 | list.add(testDemo); | |
| 48 | } | |
| 49 | return toAjax(testDemoMapper.insertBatch(list)); | |
| 50 | } | |
| 51 | ||
| 52 | /** | |
| 53 | * 新增或更新 可完美替代 saveOrUpdateBatch 高性能 | |
| 54 | * <p> | |
| 55 | * 3.5.0 版本 增加 rewriteBatchedStatements=true 批处理参数 使 MP 原生批处理可以达到同样的速度 | |
| 56 | */ | |
| 57 | @PostMapping("/addOrUpdate") | |
| 58 | // @DS("slave") | |
| 59 | public R<Void> addOrUpdate() { | |
| 60 | List<TestDemo> list = new ArrayList<>(); | |
| 61 | for (int i = 0; i < 1000; i++) { | |
| 62 | TestDemo testDemo = new TestDemo(); | |
| 63 | testDemo.setOrderNum(-1); | |
| 64 | testDemo.setTestKey("批量新增"); | |
| 65 | testDemo.setValue("测试新增"); | |
| 66 | list.add(testDemo); | |
| 67 | } | |
| 68 | testDemoMapper.insertBatch(list); | |
| 69 | for (int i = 0; i < list.size(); i++) { | |
| 70 | TestDemo testDemo = list.get(i); | |
| 71 | testDemo.setTestKey("批量新增或修改"); | |
| 72 | testDemo.setValue("批量新增或修改"); | |
| 73 | if (i % 2 == 0) { | |
| 74 | testDemo.setId(null); | |
| 75 | } | |
| 76 | } | |
| 77 | return toAjax(testDemoMapper.insertOrUpdateBatch(list)); | |
| 78 | } | |
| 79 | ||
| 80 | /** | |
| 81 | * 删除批量方法 | |
| 82 | */ | |
| 83 | @DeleteMapping() | |
| 84 | // @DS("slave") | |
| 85 | public R<Void> remove() { | |
| 86 | return toAjax(testDemoMapper.delete(new LambdaQueryWrapper<TestDemo>() | |
| 87 | .eq(TestDemo::getOrderNum, -1L))); | |
| 88 | } | |
| 89 | ||
| 90 | } | |
