原文:https://blog.csdn.net/qq_32258777/article/details/89031479
文章目录
环境搭建
读取excel文件
小于1000行数据
默认读取
指定读取
大于1000行数据
默认读取
指定读取
导出excle
单个Sheet导出
无模型映射导出
模型映射导出
多个Sheet导出
工具类
测试类
环境搭建
easyexcel 依赖(必须)
springboot (不是必须)
lombok (不是必须)
<dependency> <groupId>com.alibaba</groupId> <artifactId>easyexcel</artifactId> <version>1.1.2-beat1</version> </dependency> <dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> <version>1.18.2</version> </dependency>
读取excel文件
小于1000行数据
默认读取
读取Sheet1的全部数据
String filePath = "/home/chenmingjian/Downloads/学生表.xlsx";
List<Object> objects = ExcelUtil.readLessThan1000Row(filePath);
指定读取
下面是学生表.xlsx中Sheet1,Sheet2的数据
获取Sheet1表头以下的信息
String filePath = "/home/chenmingjian/Downloads/学生表.xlsx"; //第一个1代表sheet1, 第二个1代表从第几行开始读取数据,行号最小值为0 Sheet sheet = new Sheet(1, 1); List<Object> objects = ExcelUtil.readLessThan1000Row(filePath,sheet);
获取Sheet2的所有信息
String filePath = "/home/chenmingjian/Downloads/学生表.xlsx"; Sheet sheet = new Sheet(2, 0); List<Object> objects = ExcelUtil.readLessThan1000Row(filePath,sheet);
大于1000行数据
默认读取
String filePath = "/home/chenmingjian/Downloads/学生表.xlsx";
List<Object> objects = ExcelUtil.readMoreThan1000Row(filePath);
指定读取
String filePath = "/home/chenmingjian/Downloads/学生表.xlsx"; Sheet sheet = new Sheet(1, 2); List<Object> objects = ExcelUtil.readMoreThan1000Row(filePath,sheet);
导出excle
单个Sheet导出
无模型映射导出
String filePath = "/home/chenmingjian/Downloads/测试.xlsx"; List<List<Object>> data = new ArrayList<>(); data.add(Arrays.asList("111","222","333")); data.add(Arrays.asList("111","222","333")); data.add(Arrays.asList("111","222","333")); List<String> head = Arrays.asList("表头1", "表头2", "表头3"); ExcelUtil.writeBySimple(filePath,data,head);
结果
模型映射导出
1、定义好模型对象
package com.springboot.utils.excel.test; import com.alibaba.excel.annotation.ExcelProperty; import com.alibaba.excel.metadata.BaseRowModel; import lombok.Data; import lombok.EqualsAndHashCode; /** * @description: * @author: chenmingjian * @date: 19-4-3 14:44 */ @EqualsAndHashCode(callSuper = true) @Data public class TableHeaderExcelProperty extends BaseRowModel { /** * value: 表头名称 * index: 列的号, 0表示第一列 */ @ExcelProperty(value = "姓名", index = 0) private String name; @ExcelProperty(value = "年龄",index = 1) private int age; @ExcelProperty(value = "学校",index = 2) private String school; }
2、调用方法
String filePath = "/home/chenmingjian/Downloads/测试.xlsx"; ArrayList<TableHeaderExcelProperty> data = new ArrayList<>(); for(int i = 0; i < 4; i++){ TableHeaderExcelProperty tableHeaderExcelProperty = new TableHeaderExcelProperty(); tableHeaderExcelProperty.setName("cmj" + i); tableHeaderExcelProperty.setAge(22 + i); tableHeaderExcelProperty.setSchool("清华大学" + i); data.add(tableHeaderExcelProperty); } ExcelUtil.writeWithTemplate(filePath,data);
多个Sheet导出
1、定义好模型对象
package com.springboot.utils.excel.test; import com.alibaba.excel.annotation.ExcelProperty; import com.alibaba.excel.metadata.BaseRowModel; import lombok.Data; import lombok.EqualsAndHashCode; /** * @description: * @author: chenmingjian * @date: 19-4-3 14:44 */ @EqualsAndHashCode(callSuper = true) @Data public class TableHeaderExcelProperty extends BaseRowModel { /** * value: 表头名称 * index: 列的号, 0表示第一列 */ @ExcelProperty(value = "姓名", index = 0) private String name; @ExcelProperty(value = "年龄",index = 1) private int age; @ExcelProperty(value = "学校",index = 2) private String school; }
2、调用方法
ArrayList<ExcelUtil.MultipleSheelPropety> list1 = new ArrayList<>(); for(int j = 1; j < 4; j++){ ArrayList<TableHeaderExcelProperty> list = new ArrayList<>(); for(int i = 0; i < 4; i++){ TableHeaderExcelProperty tableHeaderExcelProperty = new TableHeaderExcelProperty(); tableHeaderExcelProperty.setName("cmj" + i); tableHeaderExcelProperty.setAge(22 + i); tableHeaderExcelProperty.setSchool("清华大学" + i); list.add(tableHeaderExcelProperty); } Sheet sheet = new Sheet(j, 0); sheet.setSheetName("sheet" + j); ExcelUtil.MultipleSheelPropety multipleSheelPropety = new ExcelUtil.MultipleSheelPropety(); multipleSheelPropety.setData(list); multipleSheelPropety.setSheet(sheet); list1.add(multipleSheelPropety); } ExcelUtil.writeWithMultipleSheel("/home/chenmingjian/Downloads/aaa.xlsx",list1);
工具类
package com.springboot.utils.excel; import com.alibaba.excel.EasyExcelFactory; import com.alibaba.excel.ExcelWriter; import com.alibaba.excel.context.AnalysisContext; import com.alibaba.excel.event.AnalysisEventListener; import com.alibaba.excel.metadata.BaseRowModel; import com.alibaba.excel.metadata.Sheet; import lombok.Data; import lombok.Getter; import lombok.Setter; import lombok.extern.slf4j.Slf4j; import org.springframework.util.CollectionUtils; import org.springframework.util.StringUtils; import java.io.*; import java.util.ArrayList; import java.util.Collections; import java.util.List; /** * @description: * @author: chenmingjian * @date: 19-3-18 16:16 */ @Slf4j public class ExcelUtil { private static Sheet initSheet; static { initSheet = new Sheet(1, 0); initSheet.setSheetName("sheet"); //设置自适应宽度 initSheet.setAutoWidth(Boolean.TRUE); } /** * 读取少于1000行数据 * @param filePath 文件绝对路径 * @return */ public static List<Object> readLessThan1000Row(String filePath){ return readLessThan1000RowBySheet(filePath,null); } /** * 读小于1000行数据, 带样式 * filePath 文件绝对路径 * initSheet : * sheetNo: sheet页码,默认为1 * headLineMun: 从第几行开始读取数据,默认为0, 表示从第一行开始读取 * clazz: 返回数据List<Object> 中Object的类名 */ public static List<Object> readLessThan1000RowBySheet(String filePath, Sheet sheet){ if(!StringUtils.hasText(filePath)){ return null; } sheet = sheet != null ? sheet : initSheet; InputStream fileStream = null; try { fileStream = new FileInputStream(filePath); return EasyExcelFactory.read(fileStream, sheet); } catch (FileNotFoundException e) { log.info("找不到文件或文件路径错误, 文件:{}", filePath); }finally { try { if(fileStream != null){ fileStream.close(); } } catch (IOException e) { log.info("excel文件读取失败, 失败原因:{}", e); } } return null; } /** * 读大于1000行数据 * @param filePath 文件觉得路径 * @return */ public static List<Object> readMoreThan1000Row(String filePath){ return readMoreThan1000RowBySheet(filePath,null); } /** * 读大于1000行数据, 带样式 * @param filePath 文件觉得路径 * @return */ public static List<Object> readMoreThan1000RowBySheet(String filePath, Sheet sheet){ if(!StringUtils.hasText(filePath)){ return null; } sheet = sheet != null ? sheet : initSheet; InputStream fileStream = null; try { fileStream = new FileInputStream(filePath); ExcelListener excelListener = new ExcelListener(); EasyExcelFactory.readBySax(fileStream, sheet, excelListener); return excelListener.getDatas(); } catch (FileNotFoundException e) { log.error("找不到文件或文件路径错误, 文件:{}", filePath); }finally { try { if(fileStream != null){ fileStream.close(); } } catch (IOException e) { log.error("excel文件读取失败, 失败原因:{}", e); } } return null; } /** * 生成excle * @param filePath 绝对路径, 如:/home/chenmingjian/Downloads/aaa.xlsx * @param data 数据源 * @param head 表头 */ public static void writeBySimple(String filePath, List<List<Object>> data, List<String> head){ writeSimpleBySheet(filePath,data,head,null); } /** * 生成excle * @param filePath 绝对路径, 如:/home/chenmingjian/Downloads/aaa.xlsx * @param data 数据源 * @param sheet excle页面样式 * @param head 表头 */ public static void writeSimpleBySheet(String filePath, List<List<Object>> data, List<String> head, Sheet sheet){ sheet = (sheet != null) ? sheet : initSheet; if(head != null){ List<List<String>> list = new ArrayList<>(); head.forEach(h -> list.add(Collections.singletonList(h))); sheet.setHead(list); } OutputStream outputStream = null; ExcelWriter writer = null; try { outputStream = new FileOutputStream(filePath); writer = EasyExcelFactory.getWriter(outputStream); writer.write1(data,sheet); } catch (FileNotFoundException e) { log.error("找不到文件或文件路径错误, 文件:{}", filePath); }finally { try { if(writer != null){ writer.finish(); } if(outputStream != null){ outputStream.close(); } } catch (IOException e) { log.error("excel文件导出失败, 失败原因:{}", e); } } } /** * 生成excle * @param filePath 绝对路径, 如:/home/chenmingjian/Downloads/aaa.xlsx * @param data 数据源 */ public static void writeWithTemplate(String filePath, List<? extends BaseRowModel> data){ writeWithTemplateAndSheet(filePath,data,null); } /** * 生成excle * @param filePath 绝对路径, 如:/home/chenmingjian/Downloads/aaa.xlsx * @param data 数据源 * @param sheet excle页面样式 */ public static void writeWithTemplateAndSheet(String filePath, List<? extends BaseRowModel> data, Sheet sheet){ if(CollectionUtils.isEmpty(data)){ return; } sheet = (sheet != null) ? sheet : initSheet; sheet.setClazz(data.get(0).getClass()); OutputStream outputStream = null; ExcelWriter writer = null; try { outputStream = new FileOutputStream(filePath); writer = EasyExcelFactory.getWriter(outputStream); writer.write(data,sheet); } catch (FileNotFoundException e) { log.error("找不到文件或文件路径错误, 文件:{}", filePath); }finally { try { if(writer != null){ writer.finish(); } if(outputStream != null){ outputStream.close(); } } catch (IOException e) { log.error("excel文件导出失败, 失败原因:{}", e); } } } /** * 生成多Sheet的excle * @param filePath 绝对路径, 如:/home/chenmingjian/Downloads/aaa.xlsx * @param multipleSheelPropetys */ public static void writeWithMultipleSheel(String filePath,List<MultipleSheelPropety> multipleSheelPropetys){ if(CollectionUtils.isEmpty(multipleSheelPropetys)){ return; } OutputStream outputStream = null; ExcelWriter writer = null; try { outputStream = new FileOutputStream(filePath); writer = EasyExcelFactory.getWriter(outputStream); for (MultipleSheelPropety multipleSheelPropety : multipleSheelPropetys) { Sheet sheet = multipleSheelPropety.getSheet() != null ? multipleSheelPropety.getSheet() : initSheet; if(!CollectionUtils.isEmpty(multipleSheelPropety.getData())){ sheet.setClazz(multipleSheelPropety.getData().get(0).getClass()); } writer.write(multipleSheelPropety.getData(), sheet); } } catch (FileNotFoundException e) { log.error("找不到文件或文件路径错误, 文件:{}", filePath); }finally { try { if(writer != null){ writer.finish(); } if(outputStream != null){ outputStream.close(); } } catch (IOException e) { log.error("excel文件导出失败, 失败原因:{}", e); } } } /*********************匿名内部类开始,可以提取出去******************************/ @Data public static class MultipleSheelPropety{ private List<? extends BaseRowModel> data; private Sheet sheet; } /** * 解析监听器, * 每解析一行会回调invoke()方法。 * 整个excel解析结束会执行doAfterAllAnalysed()方法 * * @author: chenmingjian * @date: 19-4-3 14:11 */ @Getter @Setter public static class ExcelListener extends AnalysisEventListener { private List<Object> datas = new ArrayList<>(); /** * 逐行解析 * object : 当前行的数据 */ @Override public void invoke(Object object, AnalysisContext context) { //当前行 // context.getCurrentRowNum() if (object != null) { datas.add(object); } } /** * 解析完所有数据后会调用该方法 */ @Override public void doAfterAllAnalysed(AnalysisContext context) { //解析结束销毁不用的资源 } } /************************匿名内部类结束,可以提取出去***************************/ }
测试类
package com.springboot.utils.excel; import com.alibaba.excel.annotation.ExcelProperty; import com.alibaba.excel.metadata.BaseRowModel; import com.alibaba.excel.metadata.Sheet; import lombok.Data; import lombok.EqualsAndHashCode; import org.junit.runner.RunWith; import org.springframework.boot.test.context.SpringBootTest; import org.springframework.test.context.junit4.SpringRunner; import java.util.ArrayList; import java.util.Arrays; import java.util.List; /** * @description: 测试类 * @author: chenmingjian * @date: 19-4-4 15:24 */ @SpringBootTest @RunWith(SpringRunner.class) public class Test { /** * 读取少于1000行的excle */ @org.junit.Test public void readLessThan1000Row(){ String filePath = "/home/chenmingjian/Downloads/测试.xlsx"; List<Object> objects = ExcelUtil.readLessThan1000Row(filePath); objects.forEach(System.out::println); } /** * 读取少于1000行的excle,可以指定sheet和从几行读起 */ @org.junit.Test public void readLessThan1000RowBySheet(){ String filePath = "/home/chenmingjian/Downloads/测试.xlsx"; Sheet sheet = new Sheet(1, 1); List<Object> objects = ExcelUtil.readLessThan1000RowBySheet(filePath,sheet); objects.forEach(System.out::println); } /** * 读取大于1000行的excle * 带sheet参数的方法可参照测试方法readLessThan1000RowBySheet() */ @org.junit.Test public void readMoreThan1000Row(){ String filePath = "/home/chenmingjian/Downloads/测试.xlsx"; List<Object> objects = ExcelUtil.readMoreThan1000Row(filePath); objects.forEach(System.out::println); } /** * 生成excle * 带sheet参数的方法可参照测试方法readLessThan1000RowBySheet() */ @org.junit.Test public void writeBySimple(){ String filePath = "/home/chenmingjian/Downloads/测试.xlsx"; List<List<Object>> data = new ArrayList<>(); data.add(Arrays.asList("111","222","333")); data.add(Arrays.asList("111","222","333")); data.add(Arrays.asList("111","222","333")); List<String> head = Arrays.asList("表头1", "表头2", "表头3"); ExcelUtil.writeBySimple(filePath,data,head); } /** * 生成excle, 带用模型 * 带sheet参数的方法可参照测试方法readLessThan1000RowBySheet() */ @org.junit.Test public void writeWithTemplate(){ String filePath = "/home/chenmingjian/Downloads/测试.xlsx"; ArrayList<TableHeaderExcelProperty> data = new ArrayList<>(); for(int i = 0; i < 4; i++){ TableHeaderExcelProperty tableHeaderExcelProperty = new TableHeaderExcelProperty(); tableHeaderExcelProperty.setName("cmj" + i); tableHeaderExcelProperty.setAge(22 + i); tableHeaderExcelProperty.setSchool("清华大学" + i); data.add(tableHeaderExcelProperty); } ExcelUtil.writeWithTemplate(filePath,data); } /** * 生成excle, 带用模型,带多个sheet */ @org.junit.Test public void writeWithMultipleSheel(){ ArrayList<ExcelUtil.MultipleSheelPropety> list1 = new ArrayList<>(); for(int j = 1; j < 4; j++){ ArrayList<TableHeaderExcelProperty> list = new ArrayList<>(); for(int i = 0; i < 4; i++){ TableHeaderExcelProperty tableHeaderExcelProperty = new TableHeaderExcelProperty(); tableHeaderExcelProperty.setName("cmj" + i); tableHeaderExcelProperty.setAge(22 + i); tableHeaderExcelProperty.setSchool("清华大学" + i); list.add(tableHeaderExcelProperty); } Sheet sheet = new Sheet(j, 0); sheet.setSheetName("sheet" + j); ExcelUtil.MultipleSheelPropety multipleSheelPropety = new ExcelUtil.MultipleSheelPropety(); multipleSheelPropety.setData(list); multipleSheelPropety.setSheet(sheet); list1.add(multipleSheelPropety); } ExcelUtil.writeWithMultipleSheel("/home/chenmingjian/Downloads/aaa.xlsx",list1); } /*******************匿名内部类,实际开发中该对象要提取出去**********************/ /** * @description: * @author: chenmingjian * @date: 19-4-3 14:44 */ @EqualsAndHashCode(callSuper = true) @Data public static class TableHeaderExcelProperty extends BaseRowModel { /** * value: 表头名称 * index: 列的号, 0表示第一列 */ @ExcelProperty(value = "姓名", index = 0) private String name; @ExcelProperty(value = "年龄",index = 1) private int age; @ExcelProperty(value = "学校",index = 2) private String school; } /*******************匿名内部类,实际开发中该对象要提取出去**********************/ }
喝水不忘挖井人,感谢阿里巴巴项目组提供了easyexcel工具类,github地址:https://github.com/alibaba/easyexcel
文章目录环境搭建读取excel文件小于1000行数据默认读取指定读取大于1000行数据默认读取指定读取导出excle单个Sheet导出无模型映射导出模型映射导出多个Sheet导出工具类测试类环境搭建easyexcel 依赖(必须)springboot (不是必须)lombok (不是必须) <dependency> <groupId>com.alibaba</groupId> <artifactId>easyexcel</artifactId> <version>1.1.2-beat1</version> </dependency> <dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> <version>1.18.2</version> </dependency>1234567891011读取excel文件小于1000行数据默认读取读取Sheet1的全部数据
String filePath = "/home/chenmingjian/Downloads/学生表.xlsx"; List<Object> objects = ExcelUtil.readLessThan1000Row(filePath);12指定读取下面是学生表.xlsx中Sheet1,Sheet2的数据
获取Sheet1表头以下的信息
String filePath = "/home/chenmingjian/Downloads/学生表.xlsx";//第一个1代表sheet1, 第二个1代表从第几行开始读取数据,行号最小值为0Sheet sheet = new Sheet(1, 1);List<Object> objects = ExcelUtil.readLessThan1000Row(filePath,sheet);1234获取Sheet2的所有信息
String filePath = "/home/chenmingjian/Downloads/学生表.xlsx"; Sheet sheet = new Sheet(2, 0); List<Object> objects = ExcelUtil.readLessThan1000Row(filePath,sheet);123大于1000行数据默认读取String filePath = "/home/chenmingjian/Downloads/学生表.xlsx";List<Object> objects = ExcelUtil.readMoreThan1000Row(filePath);12指定读取String filePath = "/home/chenmingjian/Downloads/学生表.xlsx";Sheet sheet = new Sheet(1, 2);List<Object> objects = ExcelUtil.readMoreThan1000Row(filePath,sheet);123导出excle单个Sheet导出无模型映射导出String filePath = "/home/chenmingjian/Downloads/测试.xlsx";List<List<Object>> data = new ArrayList<>();data.add(Arrays.asList("111","222","333"));data.add(Arrays.asList("111","222","333"));data.add(Arrays.asList("111","222","333"));List<String> head = Arrays.asList("表头1", "表头2", "表头3");ExcelUtil.writeBySimple(filePath,data,head);1234567结果
模型映射导出1、定义好模型对象
package com.springboot.utils.excel.test;
import com.alibaba.excel.annotation.ExcelProperty;import com.alibaba.excel.metadata.BaseRowModel;import lombok.Data;import lombok.EqualsAndHashCode;
/** * @description: * @author: chenmingjian * @date: 19-4-3 14:44 */@EqualsAndHashCode(callSuper = true)@Datapublic class TableHeaderExcelProperty extends BaseRowModel {
/** * value: 表头名称 * index: 列的号, 0表示第一列 */ @ExcelProperty(value = "姓名", index = 0) private String name;
@ExcelProperty(value = "年龄",index = 1) private int age;
@ExcelProperty(value = "学校",index = 2) private String school;}
1234567891011121314151617181920212223242526272829302、调用方法
String filePath = "/home/chenmingjian/Downloads/测试.xlsx";ArrayList<TableHeaderExcelProperty> data = new ArrayList<>(); for(int i = 0; i < 4; i++){ TableHeaderExcelProperty tableHeaderExcelProperty = new TableHeaderExcelProperty(); tableHeaderExcelProperty.setName("cmj" + i); tableHeaderExcelProperty.setAge(22 + i); tableHeaderExcelProperty.setSchool("清华大学" + i); data.add(tableHeaderExcelProperty); }
ExcelUtil.writeWithTemplate(filePath,data);1234567891011多个Sheet导出1、定义好模型对象
package com.springboot.utils.excel.test;
import com.alibaba.excel.annotation.ExcelProperty;import com.alibaba.excel.metadata.BaseRowModel;import lombok.Data;import lombok.EqualsAndHashCode;
/** * @description: * @author: chenmingjian * @date: 19-4-3 14:44 */@EqualsAndHashCode(callSuper = true)@Datapublic class TableHeaderExcelProperty extends BaseRowModel {
/** * value: 表头名称 * index: 列的号, 0表示第一列 */ @ExcelProperty(value = "姓名", index = 0) private String name;
@ExcelProperty(value = "年龄",index = 1) private int age;
@ExcelProperty(value = "学校",index = 2) private String school;}
1234567891011121314151617181920212223242526272829302、调用方法
ArrayList<ExcelUtil.MultipleSheelPropety> list1 = new ArrayList<>(); for(int j = 1; j < 4; j++){ ArrayList<TableHeaderExcelProperty> list = new ArrayList<>(); for(int i = 0; i < 4; i++){ TableHeaderExcelProperty tableHeaderExcelProperty = new TableHeaderExcelProperty(); tableHeaderExcelProperty.setName("cmj" + i); tableHeaderExcelProperty.setAge(22 + i); tableHeaderExcelProperty.setSchool("清华大学" + i); list.add(tableHeaderExcelProperty); }
Sheet sheet = new Sheet(j, 0); sheet.setSheetName("sheet" + j);
ExcelUtil.MultipleSheelPropety multipleSheelPropety = new ExcelUtil.MultipleSheelPropety(); multipleSheelPropety.setData(list); multipleSheelPropety.setSheet(sheet);
list1.add(multipleSheelPropety);
}
ExcelUtil.writeWithMultipleSheel("/home/chenmingjian/Downloads/aaa.xlsx",list1);1234567891011121314151617181920212223工具类package com.springboot.utils.excel;
import com.alibaba.excel.EasyExcelFactory;import com.alibaba.excel.ExcelWriter;import com.alibaba.excel.context.AnalysisContext;import com.alibaba.excel.event.AnalysisEventListener;import com.alibaba.excel.metadata.BaseRowModel;import com.alibaba.excel.metadata.Sheet;import lombok.Data;import lombok.Getter;import lombok.Setter;import lombok.extern.slf4j.Slf4j;import org.springframework.util.CollectionUtils;import org.springframework.util.StringUtils;
import java.io.*;import java.util.ArrayList;import java.util.Collections;import java.util.List;
/** * @description: * @author: chenmingjian * @date: 19-3-18 16:16 */@Slf4jpublic class ExcelUtil {
private static Sheet initSheet;
static { initSheet = new Sheet(1, 0); initSheet.setSheetName("sheet"); //设置自适应宽度 initSheet.setAutoWidth(Boolean.TRUE); }
/** * 读取少于1000行数据 * @param filePath 文件绝对路径 * @return */ public static List<Object> readLessThan1000Row(String filePath){ return readLessThan1000RowBySheet(filePath,null); }
/** * 读小于1000行数据, 带样式 * filePath 文件绝对路径 * initSheet : * sheetNo: sheet页码,默认为1 * headLineMun: 从第几行开始读取数据,默认为0, 表示从第一行开始读取 * clazz: 返回数据List<Object> 中Object的类名 */ public static List<Object> readLessThan1000RowBySheet(String filePath, Sheet sheet){ if(!StringUtils.hasText(filePath)){ return null; }
sheet = sheet != null ? sheet : initSheet;
InputStream fileStream = null; try { fileStream = new FileInputStream(filePath); return EasyExcelFactory.read(fileStream, sheet); } catch (FileNotFoundException e) { log.info("找不到文件或文件路径错误, 文件:{}", filePath); }finally { try { if(fileStream != null){ fileStream.close(); } } catch (IOException e) { log.info("excel文件读取失败, 失败原因:{}", e); } } return null; }
/** * 读大于1000行数据 * @param filePath 文件觉得路径 * @return */ public static List<Object> readMoreThan1000Row(String filePath){ return readMoreThan1000RowBySheet(filePath,null); }
/** * 读大于1000行数据, 带样式 * @param filePath 文件觉得路径 * @return */ public static List<Object> readMoreThan1000RowBySheet(String filePath, Sheet sheet){ if(!StringUtils.hasText(filePath)){ return null; }
sheet = sheet != null ? sheet : initSheet;
InputStream fileStream = null; try { fileStream = new FileInputStream(filePath); ExcelListener excelListener = new ExcelListener(); EasyExcelFactory.readBySax(fileStream, sheet, excelListener); return excelListener.getDatas(); } catch (FileNotFoundException e) { log.error("找不到文件或文件路径错误, 文件:{}", filePath); }finally { try { if(fileStream != null){ fileStream.close(); } } catch (IOException e) { log.error("excel文件读取失败, 失败原因:{}", e); } } return null; }
/** * 生成excle * @param filePath 绝对路径, 如:/home/chenmingjian/Downloads/aaa.xlsx * @param data 数据源 * @param head 表头 */ public static void writeBySimple(String filePath, List<List<Object>> data, List<String> head){ writeSimpleBySheet(filePath,data,head,null); }
/** * 生成excle * @param filePath 绝对路径, 如:/home/chenmingjian/Downloads/aaa.xlsx * @param data 数据源 * @param sheet excle页面样式 * @param head 表头 */ public static void writeSimpleBySheet(String filePath, List<List<Object>> data, List<String> head, Sheet sheet){ sheet = (sheet != null) ? sheet : initSheet;
if(head != null){ List<List<String>> list = new ArrayList<>(); head.forEach(h -> list.add(Collections.singletonList(h))); sheet.setHead(list); }
OutputStream outputStream = null; ExcelWriter writer = null; try { outputStream = new FileOutputStream(filePath); writer = EasyExcelFactory.getWriter(outputStream); writer.write1(data,sheet); } catch (FileNotFoundException e) { log.error("找不到文件或文件路径错误, 文件:{}", filePath); }finally { try { if(writer != null){ writer.finish(); }
if(outputStream != null){ outputStream.close(); }
} catch (IOException e) { log.error("excel文件导出失败, 失败原因:{}", e); } }
}
/** * 生成excle * @param filePath 绝对路径, 如:/home/chenmingjian/Downloads/aaa.xlsx * @param data 数据源 */ public static void writeWithTemplate(String filePath, List<? extends BaseRowModel> data){ writeWithTemplateAndSheet(filePath,data,null); }
/** * 生成excle * @param filePath 绝对路径, 如:/home/chenmingjian/Downloads/aaa.xlsx * @param data 数据源 * @param sheet excle页面样式 */ public static void writeWithTemplateAndSheet(String filePath, List<? extends BaseRowModel> data, Sheet sheet){ if(CollectionUtils.isEmpty(data)){ return; }
sheet = (sheet != null) ? sheet : initSheet; sheet.setClazz(data.get(0).getClass());
OutputStream outputStream = null; ExcelWriter writer = null; try { outputStream = new FileOutputStream(filePath); writer = EasyExcelFactory.getWriter(outputStream); writer.write(data,sheet); } catch (FileNotFoundException e) { log.error("找不到文件或文件路径错误, 文件:{}", filePath); }finally { try { if(writer != null){ writer.finish(); }
if(outputStream != null){ outputStream.close(); } } catch (IOException e) { log.error("excel文件导出失败, 失败原因:{}", e); } }
}
/** * 生成多Sheet的excle * @param filePath 绝对路径, 如:/home/chenmingjian/Downloads/aaa.xlsx * @param multipleSheelPropetys */ public static void writeWithMultipleSheel(String filePath,List<MultipleSheelPropety> multipleSheelPropetys){ if(CollectionUtils.isEmpty(multipleSheelPropetys)){ return; }
OutputStream outputStream = null; ExcelWriter writer = null; try { outputStream = new FileOutputStream(filePath); writer = EasyExcelFactory.getWriter(outputStream); for (MultipleSheelPropety multipleSheelPropety : multipleSheelPropetys) { Sheet sheet = multipleSheelPropety.getSheet() != null ? multipleSheelPropety.getSheet() : initSheet; if(!CollectionUtils.isEmpty(multipleSheelPropety.getData())){ sheet.setClazz(multipleSheelPropety.getData().get(0).getClass()); } writer.write(multipleSheelPropety.getData(), sheet); }
} catch (FileNotFoundException e) { log.error("找不到文件或文件路径错误, 文件:{}", filePath); }finally { try { if(writer != null){ writer.finish(); }
if(outputStream != null){ outputStream.close(); } } catch (IOException e) { log.error("excel文件导出失败, 失败原因:{}", e); } }
}
/*********************匿名内部类开始,可以提取出去******************************/
@Data public static class MultipleSheelPropety{
private List<? extends BaseRowModel> data;
private Sheet sheet; }
/** * 解析监听器, * 每解析一行会回调invoke()方法。 * 整个excel解析结束会执行doAfterAllAnalysed()方法 * * @author: chenmingjian * @date: 19-4-3 14:11 */ @Getter @Setter public static class ExcelListener extends AnalysisEventListener {
private List<Object> datas = new ArrayList<>();
/** * 逐行解析 * object : 当前行的数据 */ @Override public void invoke(Object object, AnalysisContext context) { //当前行 // context.getCurrentRowNum() if (object != null) { datas.add(object); } }
/** * 解析完所有数据后会调用该方法 */ @Override public void doAfterAllAnalysed(AnalysisContext context) { //解析结束销毁不用的资源 }
}
/************************匿名内部类结束,可以提取出去***************************/
}
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312测试类package com.springboot.utils.excel;
import com.alibaba.excel.annotation.ExcelProperty;import com.alibaba.excel.metadata.BaseRowModel;import com.alibaba.excel.metadata.Sheet;import lombok.Data;import lombok.EqualsAndHashCode;import org.junit.runner.RunWith;import org.springframework.boot.test.context.SpringBootTest;import org.springframework.test.context.junit4.SpringRunner;
import java.util.ArrayList;import java.util.Arrays;import java.util.List;
/** * @description: 测试类 * @author: chenmingjian * @date: 19-4-4 15:24 */@SpringBootTest@RunWith(SpringRunner.class)public class Test {
/** * 读取少于1000行的excle */ @org.junit.Test public void readLessThan1000Row(){ String filePath = "/home/chenmingjian/Downloads/测试.xlsx"; List<Object> objects = ExcelUtil.readLessThan1000Row(filePath); objects.forEach(System.out::println); }
/** * 读取少于1000行的excle,可以指定sheet和从几行读起 */ @org.junit.Test public void readLessThan1000RowBySheet(){ String filePath = "/home/chenmingjian/Downloads/测试.xlsx"; Sheet sheet = new Sheet(1, 1); List<Object> objects = ExcelUtil.readLessThan1000RowBySheet(filePath,sheet); objects.forEach(System.out::println); }
/** * 读取大于1000行的excle * 带sheet参数的方法可参照测试方法readLessThan1000RowBySheet() */ @org.junit.Test public void readMoreThan1000Row(){ String filePath = "/home/chenmingjian/Downloads/测试.xlsx"; List<Object> objects = ExcelUtil.readMoreThan1000Row(filePath); objects.forEach(System.out::println); }
/** * 生成excle * 带sheet参数的方法可参照测试方法readLessThan1000RowBySheet() */ @org.junit.Test public void writeBySimple(){ String filePath = "/home/chenmingjian/Downloads/测试.xlsx"; List<List<Object>> data = new ArrayList<>(); data.add(Arrays.asList("111","222","333")); data.add(Arrays.asList("111","222","333")); data.add(Arrays.asList("111","222","333")); List<String> head = Arrays.asList("表头1", "表头2", "表头3"); ExcelUtil.writeBySimple(filePath,data,head); }
/** * 生成excle, 带用模型 * 带sheet参数的方法可参照测试方法readLessThan1000RowBySheet() */ @org.junit.Test public void writeWithTemplate(){ String filePath = "/home/chenmingjian/Downloads/测试.xlsx"; ArrayList<TableHeaderExcelProperty> data = new ArrayList<>(); for(int i = 0; i < 4; i++){ TableHeaderExcelProperty tableHeaderExcelProperty = new TableHeaderExcelProperty(); tableHeaderExcelProperty.setName("cmj" + i); tableHeaderExcelProperty.setAge(22 + i); tableHeaderExcelProperty.setSchool("清华大学" + i); data.add(tableHeaderExcelProperty); } ExcelUtil.writeWithTemplate(filePath,data); }
/** * 生成excle, 带用模型,带多个sheet */ @org.junit.Test public void writeWithMultipleSheel(){ ArrayList<ExcelUtil.MultipleSheelPropety> list1 = new ArrayList<>(); for(int j = 1; j < 4; j++){ ArrayList<TableHeaderExcelProperty> list = new ArrayList<>(); for(int i = 0; i < 4; i++){ TableHeaderExcelProperty tableHeaderExcelProperty = new TableHeaderExcelProperty(); tableHeaderExcelProperty.setName("cmj" + i); tableHeaderExcelProperty.setAge(22 + i); tableHeaderExcelProperty.setSchool("清华大学" + i); list.add(tableHeaderExcelProperty); }
Sheet sheet = new Sheet(j, 0); sheet.setSheetName("sheet" + j);
ExcelUtil.MultipleSheelPropety multipleSheelPropety = new ExcelUtil.MultipleSheelPropety(); multipleSheelPropety.setData(list); multipleSheelPropety.setSheet(sheet);
list1.add(multipleSheelPropety);
}
ExcelUtil.writeWithMultipleSheel("/home/chenmingjian/Downloads/aaa.xlsx",list1);
}
/*******************匿名内部类,实际开发中该对象要提取出去**********************/ /** * @description: * @author: chenmingjian * @date: 19-4-3 14:44 */ @EqualsAndHashCode(callSuper = true) @Data public static class TableHeaderExcelProperty extends BaseRowModel {
/** * value: 表头名称 * index: 列的号, 0表示第一列 */ @ExcelProperty(value = "姓名", index = 0) private String name;
@ExcelProperty(value = "年龄",index = 1) private int age;
@ExcelProperty(value = "学校",index = 2) private String school; }
/*******************匿名内部类,实际开发中该对象要提取出去**********************/
}
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155
点赞26
评论121
分享
收藏192
手机看
打赏文章举报收起全文
全村少女的梦·:Exception in thread "main" java.lang.NoSuchMethodError: org.apache.poi.ss.usermodel.Font.setBold(Z)V at com.alibaba.excel.util.StyleUtil.buildDefaultCellStyle(StyleUtil.java:22) at com.alibaba.excel.context.WriteContext.<init>(WriteContext.java:104) at com.alibaba.excel.write.ExcelBuilderImpl.<init>(ExcelBuilderImpl.java:40) at com.alibaba.excel.ExcelWriter.<init>(ExcelWriter.java:58) at com.alibaba.excel.EasyExcelFactory.getWriter(EasyExcelFactory.java:72) at com.ghh.util.ExcelUtil.writeWithTemplateAndSheet(ExcelUtil.java:53) at com.ghh.util.ExcelUtil.writeWithTemplate(ExcelUtil.java:32) at com.ghh.excel.CreateExcel.main(CreateExcel.java:28)这个错误有遇到过吗?博主8个月前查看回复(1)1
码农yssa1125001:easyExcel 不是对 poi 的封装吗,不是也需要poi的 依赖吗?1周前查看回复(2)
cocoboloer:工具类中writeWithMultipleSheel导入多个sheet会报错,Attempting to write a row[0] in the range [0,631] that is already written to disk,我自己更换了,Sheet过时问题。outputStream = new FileOutputStream(filePath);// writer = EasyExcelFactory.getWriter(outputStream); writer = EasyExcel.write(outputStream).build(); for (MultipleSheelPropety multipleSheelPropety : multipleSheelPropetys) { WriteSheet sheet = multipleSheelPropety.getSheet(); if(!CollectionUtils.isEmpty(multipleSheelPropety.getData())){ sheet.setClazz(multipleSheelPropety.getData().get(0).getClass()); } writer.write(multipleSheelPropety.getData(), sheet); }————————————————版权声明:本文为CSDN博主「冲奶粉的奶爸」的原创文章,遵循CC 4.0 BY-SA版权协议,转载请附上原文出处链接及本声明。原文链接:https://blog.csdn.net/qq_32258777/java/article/details/89031479