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<>一、需求
经理:小王,你来把这个Excel的数据导入到数据库中.maven包你自己选个熟悉的就行!
小王:好的,经理(内心可视化工具也可以导入,哈哈,但是咱是Java开发人员,要用程序实现)
<>二、依赖准备
<!-- 导入Excel,版本要兼容,不然报错的 --> <dependency> <groupId>org.apache.poi</groupId> <
artifactId>poi-ooxml</artifactId> <version>4.1.2</version> </dependency> <
dependency> <groupId>cn.hutool</groupId> <artifactId>hutool-all</artifactId> <
version>4.1.2</version> </dependency>
<>三、实体类准备
@Data public class Test implements Serializable { private String id; private
String name; private String state; private String createTime; }
<>四、Excel数据准备
<>五、Controller实现
@PostMapping("/importExcel") public Result importExcel(@RequestParam("file")
MultipartFile file){ try { ExcelReader excelReader = new ExcelReader(file.
getInputStream(), 0, true); //解决导入的Excel中的第一行类型和实体类不一样 excelReader.
addHeaderAlias("create_time","createTime");; //直接把Excel中的内容映射到实体类中 List<Test>
tests= excelReader.read(0, 0, Test.class); //把映射的Excel中的数据添加到数据库中 int i =
testService.insertTest(tests); //返回影响的记录数 return Result.success(i); } catch (
IOException e) { e.printStackTrace(); return Result.failed("插入失败"); } }
<>六、Service+Mybatis-plus具体实现
@Override public int insertTest(List<Test> tests) { int insert = 0; for (Test
test: tests){ insert += testMapper.insert(test); } return insert; }
<>七、结果展示
<>八、总结
实现了Excel的导入,并添加到数据表中,圆满完成经理交给的任务!!有什么问题留言,谢谢浏览学习!!!
