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easyexcel总结

2022-07-25 21:01:44 作者：互联网

简介

github地址：https://github.com/alibaba/easyexcel

使用文档：https://www.yuque.com/easyexcel/doc/easyexcel

支持的功能

读excel

写excel:

分多个sheet写入，指定单元格样式，格式化显示等

实战

引入依赖

● 2+ 版本支持 Java7和Java6

● 3+ 版本至少 Java8

<groupId>com.alibaba</groupId>

<artifactId>easyexcel</artifactId>

</dependency>

写Excel

实体类

@Data

public class DemoData {

@ExcelProperty("字符串标题")

private String string;

@ExcelProperty("日期标题")

private Date date;

@ExcelProperty("数字标题")

private Double doubleData;

/**

* 忽略这个字段

@ExcelIgnore

private String ignore;

}

@Data

public class IndexData {

@ExcelProperty(value = "字符串标题", index = 0)

private String string;

@ExcelProperty(value = "日期标题", index = 1)

private Date date;

/**

* 这里设置3 会导致第二列空的

@ExcelProperty(value = "数字标题", index = 3)

private Double doubleData;

}

@Data

public class ConverterData {

/**

* 我想所有的字符串起前面加上"自定义："三个字

@ExcelProperty(value = "字符串标题", converter = CustomStringStringConverter.class)

private String string;

/**

* 我想写到excel 用年月日的格式

@DateTimeFormat("yyyy年MM月dd日HH时mm分ss秒")

@ExcelProperty("日期标题")

private Date date;

/**

* 我想写到excel 用百分比表示

@NumberFormat("#.##%")

@ExcelProperty(value = "数字标题")

private Double doubleData;

}

@ContentRowHeight(10)

@HeadRowHeight(20)

@ColumnWidth(25)

public class WidthAndHeightData {

@ExcelProperty("字符串标题")

private String string;

@ExcelProperty("日期标题")

private Date date;

/**

* 宽度为50

@ColumnWidth(50)

@ExcelProperty("数字标题")

private Double doubleData;

}

// 头背景设置成红色 IndexedColors.RED.getIndex()

@HeadStyle(fillPatternType = FillPatternTypeEnum.SOLID_FOREGROUND, fillForegroundColor = 10)

// 头字体设置成20

@HeadFontStyle(fontHeightInPoints = 20)

// 内容的背景设置成绿色 IndexedColors.GREEN.getIndex()

@ContentStyle(fillPatternType = FillPatternTypeEnum.SOLID_FOREGROUND, fillForegroundColor = 17)

// 内容字体设置成20

@ContentFontStyle(fontHeightInPoints = 20)

public class DemoStyleData {

// 字符串的头背景设置成粉红 IndexedColors.PINK.getIndex()

@HeadStyle(fillPatternType = FillPatternTypeEnum.SOLID_FOREGROUND, fillForegroundColor = 14)

// 字符串的头字体设置成20

@HeadFontStyle(fontHeightInPoints = 30)

// 字符串的内容的背景设置成天蓝 IndexedColors.SKY_BLUE.getIndex()

@ContentStyle(fillPatternType = FillPatternTypeEnum.SOLID_FOREGROUND, fillForegroundColor = 40)

// 字符串的内容字体设置成20

@ContentFontStyle(fontHeightInPoints = 30)

@ExcelProperty("字符串标题")

private String string;

@ExcelProperty("日期标题")

private Date date;

@ExcelProperty("数字标题")

private Double doubleData;

}/**

* 样式的数据类

* @author Jiaju Zhuang

**/

@Data

// 头背景设置成红色 IndexedColors.RED.getIndex()

@HeadStyle(fillPatternType = FillPatternType.SOLID_FOREGROUND, fillForegroundColor = 10)

// 头字体设置成20

@HeadFontStyle(fontHeightInPoints = 20)

// 内容的背景设置成绿色 IndexedColors.GREEN.getIndex()

@ContentStyle(fillPatternType = FillPatternType.SOLID_FOREGROUND, fillForegroundColor = 17)

// 内容字体设置成20

@ContentFontStyle(fontHeightInPoints = 20)

public class DemoStyleData {

// 字符串的头背景设置成粉红 IndexedColors.PINK.getIndex()

@HeadStyle(fillPatternType = FillPatternType.SOLID_FOREGROUND, fillForegroundColor = 14)

// 字符串的头字体设置成20

@HeadFontStyle(fontHeightInPoints = 30)

// 字符串的内容的背景设置成天蓝 IndexedColors.SKY_BLUE.getIndex()

@ContentStyle(fillPatternType = FillPatternType.SOLID_FOREGROUND, fillForegroundColor = 40)

// 字符串的内容字体设置成20

@ContentFontStyle(fontHeightInPoints = 30)

@ExcelProperty("字符串标题")

private String string;

@ExcelProperty("日期标题")

private Date date;

@ExcelProperty("数字标题")

private Double doubleData;

}

示例：

@PostMapping(vale = "/export_year")

public void exportYear(HttpServletResponse response,

@Valid @RequestBody StatementExportAO ao){

List<StatementYearExcel> excelList = new ArrayList<>();

StatementYearExcel excel = new StatementYearExcel();

……填充数据

excelList.add(excel);

String file = "year_" + DateTimeUtils.now2String("yyyyMMddHHmmss") + ".xlsx";

String fileName = new String(file.getBytes(), StandardCharsets.ISO_8859_1);

response.setContentType("application/vnd.ms-excel;charset=utf-8");

response.setCharacterEncoding("utf-8");

response.setHeader("Content-Disposition", "attachment;filename=" + fileName);

try {

ServletOutputStream out = response.getOutputStream();

ExcelWriter excelWriter = EasyExcel.write(out).build();

WriteSheet sheet = EasyExcel.writerSheet(0, "年结算单")

.head(StatementYearExcel.class).build();

excelWriter.write(excelList, sheet);

excelWriter.finish();

} catch (Exception e) {

log.error("exportYear export error.", e);

}

标签：总结,20,String,easyexcel,ExcelProperty,private,标题,字符串
来源： https://www.cnblogs.com/xgss/p/16518817.html