|
|
|
|
@ -0,0 +1,528 @@
|
|
|
|
|
package com.sztzjy.marketing.util.excel;
|
|
|
|
|
|
|
|
|
|
import cn.hutool.core.collection.CollUtil;
|
|
|
|
|
import com.alibaba.excel.EasyExcel;
|
|
|
|
|
import com.alibaba.excel.ExcelWriter;
|
|
|
|
|
import com.alibaba.excel.context.AnalysisContext;
|
|
|
|
|
import com.alibaba.excel.enums.CellDataTypeEnum;
|
|
|
|
|
import com.alibaba.excel.event.AnalysisEventListener;
|
|
|
|
|
import com.alibaba.excel.metadata.Head;
|
|
|
|
|
import com.alibaba.excel.metadata.data.CellData;
|
|
|
|
|
import com.alibaba.excel.metadata.data.WriteCellData;
|
|
|
|
|
import com.alibaba.excel.write.handler.RowWriteHandler;
|
|
|
|
|
import com.alibaba.excel.write.handler.context.RowWriteHandlerContext;
|
|
|
|
|
import com.alibaba.excel.write.metadata.WriteSheet;
|
|
|
|
|
import com.alibaba.excel.write.metadata.holder.WriteSheetHolder;
|
|
|
|
|
import com.alibaba.excel.write.metadata.style.WriteCellStyle;
|
|
|
|
|
import com.alibaba.excel.write.metadata.style.WriteFont;
|
|
|
|
|
import com.alibaba.excel.write.style.HorizontalCellStyleStrategy;
|
|
|
|
|
import com.alibaba.excel.write.style.column.AbstractColumnWidthStyleStrategy;
|
|
|
|
|
import com.alibaba.excel.write.style.column.LongestMatchColumnWidthStyleStrategy;
|
|
|
|
|
import com.alibaba.excel.write.style.row.AbstractRowHeightStyleStrategy;
|
|
|
|
|
|
|
|
|
|
import org.apache.commons.lang3.StringUtils;
|
|
|
|
|
import org.apache.poi.ss.usermodel.*;
|
|
|
|
|
import org.apache.poi.ss.util.CellRangeAddress;
|
|
|
|
|
import org.slf4j.Logger;
|
|
|
|
|
import org.slf4j.LoggerFactory;
|
|
|
|
|
import org.springframework.util.CollectionUtils;
|
|
|
|
|
import org.springframework.web.multipart.MultipartFile;
|
|
|
|
|
|
|
|
|
|
import javax.servlet.http.HttpServletResponse;
|
|
|
|
|
import java.io.*;
|
|
|
|
|
import java.net.URLEncoder;
|
|
|
|
|
import java.util.*;
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
public class EasyExcelUtils {
|
|
|
|
|
|
|
|
|
|
private static final Logger log = LoggerFactory.getLogger(EasyExcelUtils.class);
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 导出Excel返回文件的File
|
|
|
|
|
*
|
|
|
|
|
* home.php?mod=space&uid=952169 data
|
|
|
|
|
* @param clazz
|
|
|
|
|
* @param fileName
|
|
|
|
|
*/
|
|
|
|
|
public static <T> File exportReturnToFile(List<T> data, Class<T> clazz, String fileName) {
|
|
|
|
|
File file = null;
|
|
|
|
|
//名称拆分前后缀
|
|
|
|
|
//1.判断文件名是否有扩展
|
|
|
|
|
try {
|
|
|
|
|
if (StringUtils.isBlank(fileName)) {
|
|
|
|
|
file = File.createTempFile(fileName, "");
|
|
|
|
|
} else {
|
|
|
|
|
String[] parts = fileName.split("\\.");
|
|
|
|
|
String extension = "." + parts[parts.length - 1];
|
|
|
|
|
String name = fileName.substring(0, fileName.length() - extension.length() - 1);
|
|
|
|
|
file = File.createTempFile(name, extension);
|
|
|
|
|
}
|
|
|
|
|
} catch (IOException e) {
|
|
|
|
|
log.error("文件生成失败,文件名异常.异常信息:{}", e.getMessage());
|
|
|
|
|
throw new RuntimeException("文件生成失败,文件名异常");
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
//导出
|
|
|
|
|
EasyExcel.write(file, clazz)
|
|
|
|
|
.registerWriteHandler(new LongestMatchColumnWidthStyleStrategy())
|
|
|
|
|
.registerWriteHandler(defaultStylePolicyPolicy())
|
|
|
|
|
.sheet()
|
|
|
|
|
.doWrite(data);
|
|
|
|
|
return file;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* EasyExce导出到浏览器(类模板方式)
|
|
|
|
|
*
|
|
|
|
|
* @param fileName 文件名
|
|
|
|
|
* @param response 响应对象
|
|
|
|
|
* @param data 数据集
|
|
|
|
|
* @param clazz 实体类模板
|
|
|
|
|
* @param <T> 泛型
|
|
|
|
|
*/
|
|
|
|
|
public static <T> void export(String fileName, HttpServletResponse response, List<T> data, Class<T> clazz) throws IOException {
|
|
|
|
|
exportPublic(fileName, response, data, clazz, null);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* EasyExce导出到浏览器(类模板方式)
|
|
|
|
|
*
|
|
|
|
|
* @param fileName 文件名
|
|
|
|
|
* @param response 响应对象
|
|
|
|
|
* @param data 数据集
|
|
|
|
|
* @param clazz 实体类模板
|
|
|
|
|
* @param excludeColumnFieldNames 忽略指定列导出根据字段名
|
|
|
|
|
* @param <T> 泛型
|
|
|
|
|
*/
|
|
|
|
|
public static <T> void export(String fileName, HttpServletResponse response, List<T> data, Class<T> clazz, List<String> excludeColumnFieldNames) throws IOException {
|
|
|
|
|
exportPublic(fileName, response, data, clazz, excludeColumnFieldNames);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* export公共
|
|
|
|
|
*
|
|
|
|
|
* @param fileName 文件名
|
|
|
|
|
* @param response 响应对象
|
|
|
|
|
* @param data 数据集
|
|
|
|
|
* @param clazz 实体类模板
|
|
|
|
|
* @param excludeColumnFieldNames 忽略指定列导出根据字段名
|
|
|
|
|
* @param <T> 泛型
|
|
|
|
|
* @throws IOException
|
|
|
|
|
*/
|
|
|
|
|
private static <T> void exportPublic(String fileName, HttpServletResponse response, List<T> data, Class<T> clazz, List<String> excludeColumnFieldNames) throws IOException {
|
|
|
|
|
|
|
|
|
|
setResponse(response, fileName);
|
|
|
|
|
|
|
|
|
|
//导出
|
|
|
|
|
EasyExcel.write(response.getOutputStream(), clazz)
|
|
|
|
|
.registerWriteHandler(new LongestMatchColumnWidthStyleStrategy())
|
|
|
|
|
.registerWriteHandler(defaultStylePolicyPolicy())
|
|
|
|
|
.registerWriteHandler(new CustomCellWriteWidthConfig())
|
|
|
|
|
// .registerWriteHandler(new CustomCellWriteHeightConfig())
|
|
|
|
|
.sheet()
|
|
|
|
|
.excludeColumnFieldNames(excludeColumnFieldNames)
|
|
|
|
|
.doWrite(data);
|
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* EasyExce导出到浏览器(动态标题(字段)方式)
|
|
|
|
|
*
|
|
|
|
|
* @param fileName 文件名
|
|
|
|
|
* @param response 响应对象
|
|
|
|
|
* @param heads 标题(字段)
|
|
|
|
|
* @param data 数据
|
|
|
|
|
* @throws IOException
|
|
|
|
|
*/
|
|
|
|
|
public static void export(String fileName, HttpServletResponse response, List<List<String>> heads, List<List<Object>> data) throws IOException {
|
|
|
|
|
|
|
|
|
|
setResponse(response, fileName);
|
|
|
|
|
|
|
|
|
|
//导出
|
|
|
|
|
EasyExcel.write(response.getOutputStream())
|
|
|
|
|
.head(heads)
|
|
|
|
|
.registerWriteHandler(new LongestMatchColumnWidthStyleStrategy())
|
|
|
|
|
.registerWriteHandler(defaultStylePolicyPolicy())
|
|
|
|
|
.sheet()
|
|
|
|
|
.doWrite(data);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 导出失败返回错误模板
|
|
|
|
|
*
|
|
|
|
|
* @param response 响应对象
|
|
|
|
|
* @param pathName 模板路径
|
|
|
|
|
* @param msg 异常消息
|
|
|
|
|
* @throws IOException
|
|
|
|
|
*/
|
|
|
|
|
public static void exportError(HttpServletResponse response, String pathName, String msg) throws IOException {
|
|
|
|
|
|
|
|
|
|
setResponse(response, "导出失败");
|
|
|
|
|
|
|
|
|
|
InputStream resourceAsStream = EasyExcelUtils.class.getResourceAsStream(pathName);
|
|
|
|
|
|
|
|
|
|
Map<String, String> map = new HashMap<>();
|
|
|
|
|
map.put("msg", msg);
|
|
|
|
|
|
|
|
|
|
//导出
|
|
|
|
|
EasyExcel.write(response.getOutputStream()).withTemplate(resourceAsStream).sheet().doFill(map);
|
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* EasyExce导出Excel到多Sheet表 -> 浏览器
|
|
|
|
|
*
|
|
|
|
|
* @param fileName 文件名
|
|
|
|
|
* @param response 响应对象
|
|
|
|
|
* @param sheetNameList 已经排序过的sheet名称列表
|
|
|
|
|
* @param data 数据集 key为sheet名称,value为数据集合
|
|
|
|
|
* @param clazz 实体类模板
|
|
|
|
|
* @param excludeColumnFieldNames 忽略指定列导出根据字段名
|
|
|
|
|
* @throws IOException
|
|
|
|
|
*/
|
|
|
|
|
public static <T> void exportToMultipleSheets(String fileName, HttpServletResponse response, List<String> sheetNameList, Map<String, List<T>> data, Class<T> clazz, List<String> excludeColumnFieldNames) throws IOException {
|
|
|
|
|
|
|
|
|
|
setResponse(response, fileName);
|
|
|
|
|
|
|
|
|
|
// 创建ExcelWriter对象
|
|
|
|
|
ExcelWriter writer = EasyExcel
|
|
|
|
|
.write(response.getOutputStream())
|
|
|
|
|
.registerWriteHandler(new CustomCellWriteWidthConfig()) /*自适应列宽*/
|
|
|
|
|
.registerWriteHandler(new CustomCellWriteHeightConfig()) /*自适应行高（根据自己情况选择使用，我这里没用到）*/
|
|
|
|
|
//自定义样式
|
|
|
|
|
.registerWriteHandler(EasyExcelUtils.defaultStylePolicyPolicy())
|
|
|
|
|
.build();
|
|
|
|
|
|
|
|
|
|
//创建工作表
|
|
|
|
|
sheetNameList.forEach(sheetName -> {
|
|
|
|
|
WriteSheet sheet = EasyExcel.writerSheet(sheetName).excludeColumnFieldNames(excludeColumnFieldNames).head(clazz).build();
|
|
|
|
|
List<T> valueList = data.get(sheetName);
|
|
|
|
|
if (CollUtil.isEmpty(valueList)) throw new RuntimeException("查询不到对应sheet数据,请检查数据!");
|
|
|
|
|
writer.write(valueList, sheet);
|
|
|
|
|
|
|
|
|
|
});
|
|
|
|
|
|
|
|
|
|
//导出
|
|
|
|
|
writer.finish();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 设置响应对象
|
|
|
|
|
*
|
|
|
|
|
* @param response
|
|
|
|
|
* @param fileName
|
|
|
|
|
*/
|
|
|
|
|
private static void setResponse(HttpServletResponse response, String fileName) throws UnsupportedEncodingException {
|
|
|
|
|
response.setContentType("application/vnd.ms-excel");
|
|
|
|
|
response.setCharacterEncoding("utf-8");
|
|
|
|
|
response.setHeader("Content-disposition", "attachment;filename*=utf-8''" + URLEncoder.encode(fileName, "UTF-8").replaceAll("\\+", "%20") + ".xlsx");
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 获取标题和数据
|
|
|
|
|
* 标题 listTitle
|
|
|
|
|
* 数据 listBody
|
|
|
|
|
*
|
|
|
|
|
* @param file 文件
|
|
|
|
|
* home.php?mod=space&uid=155549 返回包含标题和数据的Map
|
|
|
|
|
* @throws IOException 当发生I/O错误时抛出
|
|
|
|
|
*/
|
|
|
|
|
public static Map<String, Object> readExcelTitleAndBody(MultipartFile file) throws IOException {
|
|
|
|
|
InputStream inputStream = file.getInputStream();
|
|
|
|
|
List<String> listTitle = new ArrayList<>(4);
|
|
|
|
|
List<Map<String, String>> listBody = new ArrayList<>();
|
|
|
|
|
|
|
|
|
|
Integer count = 0;
|
|
|
|
|
AnalysisEventListener<Map<Integer, String>> listener = new AnalysisEventListener<Map<Integer, String>>() {
|
|
|
|
|
@Override
|
|
|
|
|
public void invokeHeadMap(Map<Integer, String> headMap, AnalysisContext context) {
|
|
|
|
|
// 在这里处理标题行的数据
|
|
|
|
|
// headMap是一个Map，键为列的索引，值为列的标题
|
|
|
|
|
// 你可以在这里获取到标题行的数据
|
|
|
|
|
if (listTitle.size() == 0) {
|
|
|
|
|
headMap.forEach((k, v) -> {
|
|
|
|
|
listTitle.add(v);
|
|
|
|
|
});
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
@Override
|
|
|
|
|
public void invoke(Map<Integer, String> data, AnalysisContext context) {
|
|
|
|
|
// 这里是读取到每一行数据时的处理逻辑
|
|
|
|
|
Map<String, String> map = new HashMap<>();
|
|
|
|
|
data.forEach((k, v) -> {
|
|
|
|
|
map.put(listTitle.get(k), v);
|
|
|
|
|
});
|
|
|
|
|
listBody.add(map);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
@Override
|
|
|
|
|
public void doAfterAllAnalysed(AnalysisContext context) {
|
|
|
|
|
// 读取完成后的处理逻辑
|
|
|
|
|
}
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
EasyExcel.read(inputStream, listener).sheet().doRead();
|
|
|
|
|
inputStream.close();
|
|
|
|
|
Map<String, Object> resMap = new HashMap<>();
|
|
|
|
|
resMap.put("listTitle", listTitle);
|
|
|
|
|
resMap.put("listBody", listBody);
|
|
|
|
|
// 返回标题行的数据
|
|
|
|
|
return resMap;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 默认样式策略策略
|
|
|
|
|
*
|
|
|
|
|
* @return
|
|
|
|
|
*/
|
|
|
|
|
public static HorizontalCellStyleStrategy defaultStylePolicyPolicy() {
|
|
|
|
|
// 头的策略
|
|
|
|
|
WriteCellStyle headWriteCellStyle = new WriteCellStyle();
|
|
|
|
|
//设置列宽
|
|
|
|
|
// 背景设置为浅蓝色
|
|
|
|
|
headWriteCellStyle.setFillForegroundColor(IndexedColors.PALE_BLUE.getIndex());
|
|
|
|
|
//设置水平对齐方式
|
|
|
|
|
headWriteCellStyle.setHorizontalAlignment(HorizontalAlignment.CENTER);
|
|
|
|
|
headWriteCellStyle.setVerticalAlignment(VerticalAlignment.CENTER);
|
|
|
|
|
|
|
|
|
|
//设置字体为微软雅黑
|
|
|
|
|
WriteFont headWriteFont = new WriteFont();
|
|
|
|
|
headWriteFont.setFontName("宋体");
|
|
|
|
|
headWriteCellStyle.setWriteFont(headWriteFont);
|
|
|
|
|
|
|
|
|
|
// 内容的策略
|
|
|
|
|
WriteCellStyle contentWriteCellStyle = new WriteCellStyle();
|
|
|
|
|
contentWriteCellStyle.setHorizontalAlignment(HorizontalAlignment.CENTER);
|
|
|
|
|
contentWriteCellStyle.setVerticalAlignment(VerticalAlignment.CENTER);
|
|
|
|
|
|
|
|
|
|
//设置字体为微软雅黑
|
|
|
|
|
WriteFont contentWriteFont = new WriteFont();
|
|
|
|
|
contentWriteFont.setFontName("宋体");
|
|
|
|
|
contentWriteCellStyle.setWriteFont(contentWriteFont);
|
|
|
|
|
|
|
|
|
|
// 这个策略是 头是头的样式 内容是内容的样式
|
|
|
|
|
return new HorizontalCellStyleStrategy(headWriteCellStyle, contentWriteCellStyle);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 通用xlsx模板下载
|
|
|
|
|
*
|
|
|
|
|
* @param response
|
|
|
|
|
* @param fileName
|
|
|
|
|
*/
|
|
|
|
|
public static void templateDownload(HttpServletResponse response, String fileName) {
|
|
|
|
|
response.setCharacterEncoding("utf-8");
|
|
|
|
|
response.setContentType("text/html;charset=utf-8");
|
|
|
|
|
response.setContentType("multipart/form-data");
|
|
|
|
|
response.setContentType("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet");
|
|
|
|
|
try {
|
|
|
|
|
InputStream inputStream = EasyExcelUtils.class.getResourceAsStream("/static/template/" + fileName);
|
|
|
|
|
if (inputStream == null) {
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
OutputStream os = response.getOutputStream();
|
|
|
|
|
byte[] b = new byte[2048];
|
|
|
|
|
int length;
|
|
|
|
|
while ((length = inputStream.read(b)) > 0) {
|
|
|
|
|
os.write(b, 0, length);
|
|
|
|
|
}
|
|
|
|
|
os.close();
|
|
|
|
|
inputStream.close();
|
|
|
|
|
} catch (IOException e) {
|
|
|
|
|
log.error(e.getMessage());
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 自适应列宽
|
|
|
|
|
*/
|
|
|
|
|
class CustomCellWriteWidthConfig extends AbstractColumnWidthStyleStrategy {
|
|
|
|
|
|
|
|
|
|
private final Map<String, Map<Integer, Integer>> CACHE = new HashMap<>();
|
|
|
|
|
|
|
|
|
|
@Override
|
|
|
|
|
protected void setColumnWidth(WriteSheetHolder writeSheetHolder, List<WriteCellData<?>> cellDataList, Cell cell, Head head, Integer integer, Boolean isHead) {
|
|
|
|
|
boolean needSetWidth = isHead || !CollectionUtils.isEmpty(cellDataList);
|
|
|
|
|
if (needSetWidth) {
|
|
|
|
|
Map<Integer, Integer> maxColumnWidthMap = CACHE.computeIfAbsent(writeSheetHolder.getSheetName() + writeSheetHolder.getSheetNo(), k -> new HashMap<>());
|
|
|
|
|
|
|
|
|
|
Integer columnWidth = this.dataLength(cellDataList, cell, isHead);
|
|
|
|
|
// 单元格文本长度大于60换行
|
|
|
|
|
if (columnWidth >= 0) {
|
|
|
|
|
if (columnWidth > 60) {
|
|
|
|
|
columnWidth = 60;
|
|
|
|
|
}
|
|
|
|
|
Integer maxColumnWidth = maxColumnWidthMap.get(cell.getColumnIndex());
|
|
|
|
|
if (maxColumnWidth == null || columnWidth > maxColumnWidth) {
|
|
|
|
|
maxColumnWidthMap.put(cell.getColumnIndex(), columnWidth);
|
|
|
|
|
Sheet sheet = writeSheetHolder.getSheet();
|
|
|
|
|
sheet.setColumnWidth(cell.getColumnIndex(), columnWidth * 256);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 计算长度
|
|
|
|
|
*
|
|
|
|
|
* @param cellDataList
|
|
|
|
|
* @param cell
|
|
|
|
|
* @param isHead
|
|
|
|
|
* @return
|
|
|
|
|
*/
|
|
|
|
|
private Integer dataLength(List<WriteCellData<?>> cellDataList, Cell cell, Boolean isHead) {
|
|
|
|
|
if (isHead) {
|
|
|
|
|
return cell.getStringCellValue().getBytes().length;
|
|
|
|
|
} else {
|
|
|
|
|
CellData<?> cellData = cellDataList.get(0);
|
|
|
|
|
CellDataTypeEnum type = cellData.getType();
|
|
|
|
|
if (type == null) {
|
|
|
|
|
return -1;
|
|
|
|
|
} else {
|
|
|
|
|
switch (type) {
|
|
|
|
|
case STRING:
|
|
|
|
|
// 换行符（数据需要提前解析好）
|
|
|
|
|
int index = cellData.getStringValue().indexOf("\n");
|
|
|
|
|
return index != -1 ?
|
|
|
|
|
cellData.getStringValue().substring(0, index).getBytes().length + 1 : cellData.getStringValue().getBytes().length + 1;
|
|
|
|
|
case BOOLEAN:
|
|
|
|
|
return cellData.getBooleanValue().toString().getBytes().length;
|
|
|
|
|
case NUMBER:
|
|
|
|
|
return cellData.getNumberValue().toString().getBytes().length;
|
|
|
|
|
default:
|
|
|
|
|
return -1;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 自适应行高
|
|
|
|
|
*/
|
|
|
|
|
class CustomCellWriteHeightConfig extends AbstractRowHeightStyleStrategy {
|
|
|
|
|
/**
|
|
|
|
|
* 默认高度
|
|
|
|
|
*/
|
|
|
|
|
private static final Integer DEFAULT_HEIGHT = 300;
|
|
|
|
|
|
|
|
|
|
@Override
|
|
|
|
|
protected void setHeadColumnHeight(Row row, int relativeRowIndex) {
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
@Override
|
|
|
|
|
protected void setContentColumnHeight(Row row, int relativeRowIndex) {
|
|
|
|
|
Iterator<Cell> cellIterator = row.cellIterator();
|
|
|
|
|
if (!cellIterator.hasNext()) {
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
// 默认为 1行高度
|
|
|
|
|
int maxHeight = 1;
|
|
|
|
|
while (cellIterator.hasNext()) {
|
|
|
|
|
Cell cell = cellIterator.next();
|
|
|
|
|
if (cell.getCellTypeEnum() == CellType.STRING) {
|
|
|
|
|
String value = cell.getStringCellValue();
|
|
|
|
|
int len = value.length();
|
|
|
|
|
int num = 0;
|
|
|
|
|
if (len > 50) {
|
|
|
|
|
num = len % 50 > 0 ? len / 50 : len / 2 - 1;
|
|
|
|
|
}
|
|
|
|
|
if (num > 0) {
|
|
|
|
|
for (int i = 0; i < num; i++) {
|
|
|
|
|
value = value.substring(0, (i + 1) * 50 + i) + "\n" + value.substring((i + 1) * 50 + i, len + i);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
if (value.contains("\n")) {
|
|
|
|
|
int length = value.split("\n").length;
|
|
|
|
|
maxHeight = Math.max(maxHeight, length) + 1;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
row.setHeight((short) ((maxHeight) * DEFAULT_HEIGHT));
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 合并行策略
|
|
|
|
|
*/
|
|
|
|
|
class MergeRowStrategy implements RowWriteHandler {
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 需要合并的依据的列下表数组（从 0 开始）,例如传{1,2}则判断第二列和第三列是否相同,相同则合并mergeColumnIndexList对应列
|
|
|
|
|
*/
|
|
|
|
|
private final int[] mergeByColumn;
|
|
|
|
|
/**
|
|
|
|
|
* 需合并的列下标数组（从 0 开始）
|
|
|
|
|
*/
|
|
|
|
|
private final int[] mergeColumnIndexList;
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 是否清空冗余内容
|
|
|
|
|
*/
|
|
|
|
|
private boolean isCleanSurplusContent = true;
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 合并 Key
|
|
|
|
|
*/
|
|
|
|
|
private String mergeKey = null;
|
|
|
|
|
/**
|
|
|
|
|
* 合并起始行下标
|
|
|
|
|
*/
|
|
|
|
|
private int mergeStartRowIndex;
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* @param mergeByColumn 需要合并的依据的列下表数组
|
|
|
|
|
* @param mergeColumnIndexList 需合并的列下标数组
|
|
|
|
|
*/
|
|
|
|
|
public MergeRowStrategy(int[] mergeByColumn, int[] mergeColumnIndexList) {
|
|
|
|
|
|
|
|
|
|
this.mergeByColumn = mergeByColumn;
|
|
|
|
|
this.mergeColumnIndexList = mergeColumnIndexList;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
@Override
|
|
|
|
|
public void afterRowDispose(RowWriteHandlerContext context) {
|
|
|
|
|
if (context.getHead() || context.getRelativeRowIndex() == null) {
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
//需要合并的依据组合
|
|
|
|
|
StringJoiner sj = new StringJoiner("&-&");
|
|
|
|
|
for (int index : mergeByColumn) {
|
|
|
|
|
sj.add(context.getRow().getCell(index).getStringCellValue());
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (context.getRelativeRowIndex() == 0) {
|
|
|
|
|
this.mergeKey = sj.toString();
|
|
|
|
|
this.mergeStartRowIndex = context.getRowIndex();
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
String currentKey = sj.toString();
|
|
|
|
|
if (!Objects.equals(currentKey, this.mergeKey)) {
|
|
|
|
|
this.mergeKey = currentKey;
|
|
|
|
|
this.mergeStartRowIndex = context.getRowIndex();
|
|
|
|
|
return;
|
|
|
|
|
} else {
|
|
|
|
|
//清空当前要合并单元格的内容
|
|
|
|
|
for (Integer index : mergeColumnIndexList) {
|
|
|
|
|
context.getWriteSheetHolder().getSheet().getRow(context.getRowIndex()).getCell(index).setCellValue("");
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
for (Integer columnIndex : mergeColumnIndexList) {
|
|
|
|
|
CellRangeAddress cellRangeAddress = new CellRangeAddress(
|
|
|
|
|
mergeStartRowIndex,
|
|
|
|
|
context.getRowIndex(),
|
|
|
|
|
columnIndex,
|
|
|
|
|
columnIndex);
|
|
|
|
|
context.getWriteSheetHolder().getSheet().addMergedRegionUnsafe(cellRangeAddress);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
@t2652009480
7 months ago