2020-12-03

springboot项目整合easypoi实现导入导出功能

导入依赖

在导入依赖钱看是否项目中存在poi相关的版本。直接从pom文件中去除exclusion。

本次使用的是4.2.0 。maven依赖如下:

<dependency>			<groupId>cn.afterturn</groupId>			<artifactId>easypoi-spring-boot-starter</artifactId>			<version>4.2.0</version>		</dependency>		<dependency>			<groupId>org.hibernate.validator</groupId>			<artifactId>hibernate-validator</artifactId>			<version>6.1.6.Final</version>		</dependency>		<dependency>			<groupId>org.apache.poi</groupId>			<artifactId>poi</artifactId>			<version>4.1.0</version>		</dependency>		<dependency>			<groupId>cn.afterturn</groupId>			<artifactId>easypoi-base</artifactId>			<version>4.0.0</version>			<exclusions>				<exclusion>					<groupId>com.google.guava</groupId>					<artifactId>guava</artifactId>				</exclusion>			</exclusions>		</dependency>		<dependency>			<groupId>commons-io</groupId>			<artifactId>commons-io</artifactId>			<version>2.6</version>		</dependency>

貌似没用到easypoi-base 。先不管了

按照官方说明。创建实体

官方文档;

public class MaterialExport implements Serializable {// 物资名称	@Excel(name = "物资名称", width = 15)	private String name;	// 物资规格	@Excel(name = "物资规格")	private String specs;	// 物资类型	@Excel(name = "物资类型")	private String type;	// 单位	@Excel(name = "单位")	private String unit;	// 库存	@Excel(name = "库存")	private long num;		//单价	@Excel(name = "单价")	private BigDecimal unitprice;	// 厂家	@Excel(name = "厂家", width = 20)	private String manufactor;	// 库存位置	@Excel(name = "库存位置", width = 20)	private String address;	// 用途	@Excel(name = "用途", width = 20)	private String purpose;	@Excel(name = "入库时间",format = "yyyy年MM月dd日", width = 25)	@JsonFormat(shape = JsonFormat.Shape.STRING, pattern = "yyyy-MM-dd HH:mm:ss")	@DateTimeFormat(pattern = "yyyy-MM-dd HH:mm:ss")	private Date createTime;	// 备注	@Excel(name = "备注", width = 40)	private String remarks;	//getter setter方法省略。}

在导入时需要注意:实体中用到的属性为java基本属性或者是在"java.lang"、"java.math"、"java.sql"、"java.util"包中具体easypoi中逻辑代码为:

/**  * 是不是java基础类  *  * @param field  * @return  */ public static boolean isJavaClass(Field field) {  Class<?> fieldType = field.getType();  boolean isBaseClass = false;  if (fieldType.isArray()) {   isBaseClass = false;  } else if (fieldType.isPrimitive() || fieldType.getPackage() == null     || "java.lang".equals(fieldType.getPackage().getName())     || "java.math".equals(fieldType.getPackage().getName())     || "java.sql".equals(fieldType.getPackage().getName())     || "java.util".equals(fieldType.getPackage().getName())) {   isBaseClass = true;  }  return isBaseClass; }

导出功能

获取数据后直接调用Util方法
controller:

public Result export(HttpServletRequest request, HttpServletResponse response) {		System.out.println(sdf.format(new Date()));		//此处为从数据库获取list		 List<MaterialExport> materialExports = materialService.export();		response.setContentType("application/vnd.ms-excel");		OutputStream out = null;		try {			response.setHeader("Content-disposition",					"attachment;filename=" + URLEncoder.encode("物资导出" + sdf.format(new Date()) + ".xls","ISO-8859-1" ));			Workbook workbook = ExcelExportUtil.exportExcel(new ExportParams("物资库存信息", "物资"),					MaterialExport.class, materialExports);			out = response.getOutputStream();			workbook.write(out);		} catch (Exception e) {			System.out.println(e.getMessage());			System.out.println(e);		} finally {			try {				if (out != null)					out.close();			} catch (IOException e) {			}		}		return Response.success();	}

导入

从文件流中获取数据用easypoi解析数据:

	public Result inport(HttpServletRequest request,@RequestParam("file") MultipartFile fileItem) {	ImportParams importParams = new ImportParams();	 	 importParams.setHeadRows(2);	 // 获取模板	 ExcelImportResult<MaterialExport> data = null;	 try {	  data = ExcelImportUtil.importExcelMore(fileItem.getInputStream(), MaterialExport.class, importParams);	 } catch (Exception e) {	 	e.printStackTrace();	 }	 // 获取模板数据	 List<MaterialExport> successList = data.getList();	 int total = successList.size();	 // 循环数据	 System.out.println(total);	 for (MaterialExport excelDTO : successList) {	 	System.out.println(excelDTO.toString());	 }		return Response.success();	}

完毕。

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原文转载:http://www.shaoqun.com/a/494682.html

bsci 认证:https://www.ikjzd.com/w/2339

f2c:https://www.ikjzd.com/w/1242

萌店:https://www.ikjzd.com/w/1538


导入依赖在导入依赖钱看是否项目中存在poi相关的版本。直接从pom文件中去除exclusion。本次使用的是4.2.0。maven依赖如下:<dependency> <groupId>cn.afterturn</groupId> <artifactId>easypoi-spring-boot-starter</artifactId>
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