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README.md

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 # import-demo
 
 数据导入demo
+
+启动后访问：http://localhost:8080/doc.html#/default/%E5%AF%BC%E5%85%A5/importDetailUsingPOST

pom.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+	<modelVersion>4.0.0</modelVersion>
+	<parent>
+		<groupId>org.springframework.boot</groupId>
+		<artifactId>spring-boot-starter-parent</artifactId>
+		<version>2.7.1</version>
+		<relativePath/> <!-- lookup parent from repository -->
+	</parent>
+	<groupId>com.fly</groupId>
+	<artifactId>import-demo</artifactId>
+	<version>0.0.1-SNAPSHOT</version>
+	<name>import-demo</name>
+	<description>Demo project for Spring Boot</description>
+	<properties>
+		<java.version>17</java.version>
+	</properties>
+	<dependencies>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-web</artifactId>
+		</dependency>
+
+		<dependency>
+			<groupId>org.projectlombok</groupId>
+			<artifactId>lombok</artifactId>
+			<optional>true</optional>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-test</artifactId>
+			<scope>test</scope>
+		</dependency>
+        <dependency>
+            <groupId>com.github.xiaoymin</groupId>
+            <artifactId>knife4j-spring-boot-starter</artifactId>
+            <version>3.0.3</version>
+        </dependency>
+        <dependency>
+            <groupId>cn.afterturn</groupId>
+            <artifactId>easypoi-spring-boot-starter</artifactId>
+            <version>4.2.0</version>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-validation</artifactId>
+        </dependency>
+
+    </dependencies>
+
+	<build>
+		<plugins>
+			<plugin>
+				<groupId>org.springframework.boot</groupId>
+				<artifactId>spring-boot-maven-plugin</artifactId>
+				<configuration>
+					<excludes>
+						<exclude>
+							<groupId>org.projectlombok</groupId>
+							<artifactId>lombok</artifactId>
+						</exclude>
+					</excludes>
+				</configuration>
+			</plugin>
+		</plugins>
+	</build>
+
+</project>

src/main/java/com/example/demo/ImportDemoApplication.java

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+package com.example.demo;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class ImportDemoApplication {
+
+	public static void main(String[] args) {
+		SpringApplication.run(ImportDemoApplication.class, args);
+	}
+
+}

src/main/java/com/example/demo/controller/ImportController.java

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+package com.example.demo.controller;
+
+import com.example.demo.dto.ExampleData;
+import com.example.demo.dto.R;
+import com.example.demo.service.DataService;
+import io.swagger.annotations.Api;
+import io.swagger.annotations.ApiOperation;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestPart;
+import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.multipart.MultipartFile;
+
+import java.util.List;
+
+/**
+ * @author guoxiang
+ * @see <a href="https://www.jianshu.com/u/aba665c4151f">简书TinyThing</a>
+ * @since 2022/7/21 13:33
+ */
+@RestController
+@RequestMapping("/importTest")
+@Api(tags = "导入")
+@RequiredArgsConstructor
+@Slf4j
+public class ImportController {
+
+    private final DataService dataService;
+
+    @PostMapping("/import")
+    @ApiOperation("导入")
+    R<List<ExampleData>> importDetail(@RequestPart MultipartFile file) {
+
+        log.info("- import data...");
+
+        R<List<ExampleData>> data = dataService.importData(file);
+
+        log.info("- import finish");
+        return data;
+    }
+
+}

src/main/java/com/example/demo/dto/ExampleData.java

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+package com.example.demo.dto;
+
+import cn.afterturn.easypoi.excel.annotation.Excel;
+import cn.afterturn.easypoi.handler.inter.IExcelDataModel;
+import cn.afterturn.easypoi.handler.inter.IExcelModel;
+import lombok.Data;
+
+import javax.validation.constraints.Max;
+import javax.validation.constraints.Min;
+import javax.validation.constraints.NotBlank;
+
+/**
+ * @author guoxiang
+ * @see <a href="https://www.jianshu.com/u/aba665c4151f">简书TinyThing</a>
+ * @since 2022/7/21 13:58
+ */
+@Data
+public class ExampleData implements IExcelModel, IExcelDataModel {
+    @NotBlank(message = "不能为空")
+    @Excel(name = "证件号码")
+    private String id;
+
+    @Excel(name = "名称")
+    @NotBlank(message = "名称不能为空")
+    private String name;
+
+    @Excel(name = "年龄")
+    @Max(value = 150, message = "年龄不能超过150")
+    @Min(value = 1, message = "年龄不能小于1")
+    private Integer age;
+
+    @Excel(name = "学校")
+    private String college;
+
+    @Excel(name = "职位")
+    private String position;
+
+    @Excel(name = "导入错误信息")
+    private String errorMsg;
+
+    private Integer rowNum;
+}

src/main/java/com/example/demo/dto/R.java

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+package com.example.demo.dto;
+
+import lombok.*;
+import lombok.experimental.Accessors;
+
+import java.io.Serial;
+import java.io.Serializable;
+
+/**
+ * 响应信息主体
+ *
+ * @param <T>
+ */
+@ToString
+@NoArgsConstructor
+@AllArgsConstructor
+@Accessors(chain = true)
+public class R<T> implements Serializable {
+
+	@Serial
+    private static final long serialVersionUID = 1L;
+
+	@Getter
+	@Setter
+	private int code;
+
+	@Getter
+	@Setter
+	private String msg;
+
+	@Getter
+	@Setter
+	private T data;
+
+	public static <T> R<T> ok() {
+		return restResult(null, 0, null);
+	}
+
+	public static <T> R<T> ok(T data) {
+		return restResult(data, 0, null);
+	}
+
+	public static <T> R<T> ok(T data, String msg) {
+		return restResult(data, 0, msg);
+	}
+
+	public static <T> R<T> failed() {
+		return restResult(null, 1, null);
+	}
+
+	public static <T> R<T> failed(String msg) {
+		return restResult(null, 1, msg);
+	}
+
+	public static <T> R<T> failed(T data,int code, String msg) {
+		return restResult(data, code, msg);
+	}
+
+	public static <T> R<T> failed(T data) {
+		return restResult(data, 1, null);
+	}
+
+	public static <T> R<T> failed(T data, String msg) {
+		return restResult(data, 1, msg);
+	}
+
+	private static <T> R<T> restResult(T data, int code, String msg) {
+		R<T> apiResult = new R<>();
+		apiResult.setCode(code);
+		apiResult.setData(data);
+		apiResult.setMsg(msg);
+		return apiResult;
+	}
+
+}

src/main/java/com/example/demo/service/DataService.java

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+package com.example.demo.service;
+
+import cn.afterturn.easypoi.excel.ExcelImportUtil;
+import cn.afterturn.easypoi.excel.entity.ImportParams;
+import cn.afterturn.easypoi.excel.entity.result.ExcelImportResult;
+import com.example.demo.dto.ExampleData;
+import com.example.demo.dto.R;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.stereotype.Service;
+import org.springframework.web.multipart.MultipartFile;
+
+import java.util.List;
+
+/**
+ * @author guoxiang
+ * @see <a href="https://www.jianshu.com/u/aba665c4151f">简书TinyThing</a>
+ * @since 2022/7/21 13:43
+ */
+@Service
+@Slf4j
+public class DataService {
+
+    /**
+     * 导入数据
+     * @param file excel文件
+     * @return  结果
+     */
+    public R<List<ExampleData>> importData(MultipartFile file) {
+        //导入的基本配置
+        ImportParams params = new ImportParams();
+        //代表导入这里是需要验证的（根据字段上的注解校验）
+        params.setNeedVerify(true);
+        params.setTitleRows(0);
+        //使用框架自身导入工具
+        ExcelImportResult<ExampleData> result;
+        try {
+            result = ExcelImportUtil.importExcelMore(file.getInputStream(), ExampleData.class, params);
+        } catch (Exception e) {
+            log.error("导入数据错误", e);
+            throw new IllegalArgumentException();
+        }
+
+        //如果存在校验失败的数据，则返回给用户
+        if (result.isVerifyFail()) {
+            //失败结果集
+            List<ExampleData> failList = result.getFailList();
+            return R.failed(failList);
+        }
+
+        //校验成功的数据
+        List<ExampleData> list = result.getList();
+        //将数据保存到数据库
+        saveToDataBase(list);
+
+        return R.ok();
+    }
+
+    /**
+     * 保存到数据库
+     *
+     * @param list 数据
+     */
+    private void saveToDataBase(List<ExampleData> list) {
+        list.forEach(data -> log.info("data = {}", data));
+    }
+}

src/main/resources/application.properties

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+spring.mvc.pathmatch.matching-strategy=ant_path_matcher

src/test/java/com/example/demo/ImportDemoApplicationTests.java

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+package com.example.demo;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.boot.test.context.SpringBootTest;
+
+@SpringBootTest
+class ImportDemoApplicationTests {
+
+	@Test
+	void contextLoads() {
+	}
+
+}