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Commit 36047cad by henry
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删除多余的工具类

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framework-base/src/main/java/org/arch/base/utils/EasyExcelUtil.java deleted 100644 → 0
package org.arch.base.utils;
import com.alibaba.excel.EasyExcel;
import com.alibaba.excel.write.builder.ExcelWriterSheetBuilder;
import com.alibaba.excel.write.handler.RowWriteHandler;
import com.alibaba.excel.write.metadata.holder.WriteSheetHolder;
import com.alibaba.excel.write.metadata.holder.WriteTableHolder;
import com.alibaba.excel.write.metadata.style.WriteCellStyle;
import com.alibaba.excel.write.style.HorizontalCellStyleStrategy;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import org.apache.poi.ss.usermodel.*;
import org.apache.poi.ss.util.CellRangeAddress;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.net.URLEncoder;
import java.util.ArrayList;
import java.util.List;
/**
* 导出excel 表格 工具类
*/
public class EasyExcelUtil implements RowWriteHandler {
private int mergeRowIndex;//从哪一行开始合并
private int[] mergeColumnIndex;//excel合并的列
private int[] signNum;//合并的唯一标识
private int total;//总行数
private int lastRow;
private int firstCol;
private int lastCol;
private int firstRow;
private int mergeCount = 1;
private EasyExcelUtil(){}
private EasyExcelUtil(int mergeRowIndex, int[] mergeColumnIndex, int[] signNum, int total) {
this.mergeRowIndex = mergeRowIndex;
this.mergeColumnIndex = mergeColumnIndex;
this.signNum = signNum;
this.total = total;
}
/**
* 导出excel
* @param response
* @param fileName 文件名称
* @param exportList 导出数据
* @param clazz 导出实体bean class对象
* @param <T>
* @throws IOException
*/
public static <T> void createExcel(HttpServletResponse response, String fileName, List<T> exportList,
Class<T> clazz)
throws IOException {
createExcel(response,fileName,exportList,clazz,null);
}
/**
* 导出excel
* @param response
* @param fileName 文件名称
* @param exportList 导出数据
* @param clazz 导出实体bean class对象
* @param cellMerge 单元格合并规则
* @param <T>
* @throws IOException
*/
public static <T> void createExcel(HttpServletResponse response, String fileName, List<T> exportList,
Class<T> clazz, CellMerge cellMerge)
throws IOException {
// 设置下载信息
response.setContentType("application/vnd.ms-excel");
response.setCharacterEncoding("UTF-8");
fileName = URLEncoder.encode(fileName, "UTF-8");
response.setHeader("Content-disposition", "attachment;filename=" + fileName + ".xlsx");
//定义ExcelWriterSheetBuilder
ExcelWriterSheetBuilder excelWriterSheetBuilder = EasyExcel
.write(response.getOutputStream(), clazz)
.sheet(fileName);
//合并单元格
if (cellMerge != null) {
// 从那一行开始合并
int mergeRowIndex = 1;
EasyExcelUtil
excelMergeRowByRowStrategy = new EasyExcelUtil(mergeRowIndex, cellMerge.getMergeColumIndex(),
cellMerge.getMergeRuleColumIndex(), exportList.size());
excelWriterSheetBuilder.registerWriteHandler(excelMergeRowByRowStrategy);
}
//设置头样式
WriteCellStyle headWriteCellStyle = new WriteCellStyle();
//设置内容格式
WriteCellStyle contentWriteCellStyle = new WriteCellStyle();
HorizontalCellStyleStrategy horizontalCellStyleStrategy =
new HorizontalCellStyleStrategy(headWriteCellStyle, contentWriteCellStyle);
//设计内容居中
contentWriteCellStyle.setHorizontalAlignment(HorizontalAlignment.CENTER);
contentWriteCellStyle.setVerticalAlignment(VerticalAlignment.CENTER);
//设置内容自动换行
contentWriteCellStyle.setWrapped(true);
excelWriterSheetBuilder.registerWriteHandler(horizontalCellStyleStrategy);
//调用doWrite方法
excelWriterSheetBuilder.doWrite(exportList);
}
@Override
public void beforeRowCreate(WriteSheetHolder writeSheetHolder, WriteTableHolder writeTableHolder, Integer integer, Integer integer1, Boolean aBoolean) {
}
@Override
public void afterRowCreate(WriteSheetHolder writeSheetHolder, WriteTableHolder writeTableHolder, Row row, Integer integer, Boolean aBoolean) {
}
@Override
public void afterRowDispose(WriteSheetHolder writeSheetHolder, WriteTableHolder writeTableHolder, Row row,
Integer relativeRowIndex, Boolean isHead) {
//当前行
int curRowIndex = row.getRowNum();
//每一行的最大列数
short lastCellNum = row.getLastCellNum();
if (curRowIndex == 1) {
//赋初值 第一行
firstRow = curRowIndex;
}
//开始合并位置
if (curRowIndex > mergeRowIndex && !row.getCell(0).getStringCellValue().equals("")) {
for (int i = 0; i < lastCellNum; i++) {
if (i == mergeColumnIndex[i]) {
//当前行号 当前行对象 合并的标识位
mergeWithPrevAnyRow(writeSheetHolder.getSheet(), curRowIndex, row, signNum);
break;//已经进入到合并单元格操作里面了，执行一次就行
}
}
}
}
public void mergeWithPrevAnyRow(Sheet sheet, int curRowIndex, Row row, int[] signNum) {
Row preRow = row.getSheet().getRow(curRowIndex - 1);
List<String> rowDataList = new ArrayList<>();
List<String> preDataList = new ArrayList<>();
for (int i : signNum) {
Object currentData =
row.getCell(i).getCellTypeEnum() == CellType.STRING ? row.getCell(i).getStringCellValue() :
row.getCell(i).getNumericCellValue();
Object preData =
preRow.getCell(i).getCellTypeEnum() == CellType.STRING ? preRow.getCell(i).getStringCellValue() :
preRow.getCell(i).getNumericCellValue();
rowDataList.add(String.valueOf(currentData));
preDataList.add(String.valueOf(preData));
}
String rowDataStr = String.join(",", rowDataList);
String preDataStr = String.join(",", preDataList);
//判断是否合并单元格
boolean curEqualsPre = rowDataStr.equals(preDataStr);
//判断前一个和后一个相同 并且 标识位相同
if (curEqualsPre) {
lastRow = curRowIndex;
mergeCount++;
}
//excel过程中合并
if (!curEqualsPre && mergeCount > 1) {
mergeSheet(firstRow, lastRow, mergeColumnIndex, sheet);
mergeCount = 1;
}
//excel结尾处合并
if (mergeCount > 1 && total == curRowIndex) {
mergeSheet(firstRow, lastRow, mergeColumnIndex, sheet);
mergeCount = 1;
}
if (!curEqualsPre) {
firstRow = curRowIndex;
}
}
private void mergeSheet(int firstRow, int lastRow, int[] mergeColumnIndex, Sheet sheet) {
for (int colNum : mergeColumnIndex) {
firstCol = colNum;
lastCol = colNum;
CellRangeAddress cellRangeAddress = new CellRangeAddress(firstRow, lastRow, firstCol, lastCol);
sheet.addMergedRegion(cellRangeAddress);
}
}
/**
* 单元格合并类
*/
@Data
@AllArgsConstructor
@NoArgsConstructor
public class CellMerge {
private int[] mergeColumIndex;
private int[] mergeRuleColumIndex;
}
/**
* 设置单元格合并规则
* @param mergeColumIndex
* @param mergeRuleColumIndex
* @return
*/
public static CellMerge setCellMerge(int[] mergeColumIndex,int[] mergeRuleColumIndex){
EasyExcelUtil excelUtil = new EasyExcelUtil();
CellMerge cellMerge = excelUtil.new CellMerge();
cellMerge.setMergeColumIndex(mergeColumIndex);
cellMerge.setMergeRuleColumIndex(mergeRuleColumIndex);
return cellMerge;
}
}
framework-base/src/main/java/org/arch/base/utils/ExcelListener.java deleted 100644 → 0
package org.arch.base.utils;
import com.alibaba.excel.context.AnalysisContext;
import com.alibaba.excel.event.AnalysisEventListener;
import lombok.Getter;
import lombok.NoArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import java.util.ArrayList;
import java.util.List;
@Slf4j
@Getter
@NoArgsConstructor
public class ExcelListener<T> extends AnalysisEventListener<T> {
/**
* 自定义用于暂时存储data 可以通过实例获取该值
*/
private final List<T> dataList = new ArrayList<>();
@Override
public void invoke(T data, AnalysisContext context) {
dataList.add(data);
log.info("读取的一条信息：{}", data);
}
@Override
public void doAfterAllAnalysed(AnalysisContext context) {
log.info("{}条数据，解析完成", dataList.size());
}
}
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