Java基于EasyExcel實現(xiàn)讀取Excel文件詳解
1.引入依賴
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>easyexcel</artifactId>
<version>2.2.11</version>
</dependency>2.讀取器代碼：
package com.visy.utils;
import com.alibaba.excel.EasyExcel;
import com.alibaba.excel.cache.MapCache;
import com.alibaba.excel.context.AnalysisContext;
import com.alibaba.excel.event.AnalysisEventListener;
import lombok.Builder;
import lombok.Data;
import lombok.extern.slf4j.Slf4j;
import org.springframework.web.multipart.MultipartFile;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import java.util.function.Consumer;
/**
* @author visy.wang
* @description: Excel讀取器
* @date 2023/8/18 11:03
*/
@Slf4j
public class ExcelReader {
public static void read(
String fileName,
Consumer<RowData> reader,
Consumer<Integer> terminator
){
NoModelDataListener listener = NoModelDataListener.create(reader, terminator);
EasyExcel.read(fileName, listener).readCache(new MapCache()).sheet().doRead();
}
public static void read(
String fileName,
Consumer<RowData> reader
){
read(fileName, reader, null);
}
public static void read(
MultipartFile file,
Consumer<RowData> reader,
Consumer<Integer> terminator
) throws IOException {
NoModelDataListener listener = NoModelDataListener.create(reader, terminator);
EasyExcel.read(file.getInputStream(), listener).readCache(new MapCache()).sheet().doRead();
}
public static void read(
MultipartFile file,
Consumer<RowData> reader
) throws IOException {
read(file, reader, null);
}
private static class NoModelDataListener extends AnalysisEventListener<Map<Integer, String>> {
private int totalRows = 0;//讀取總行數(shù)
private static final int BATCH_SIZE = 1000; //分批次，每一次讀取的行數(shù)
private final Map<Integer, String> headMap = new HashMap<>();
private final List<RowData> list = new ArrayList<>(BATCH_SIZE);
private final Consumer<RowData> reader;
private final Consumer<Integer> terminator;
public static NoModelDataListener create(
Consumer<RowData> reader,
Consumer<Integer> terminator
){
return new NoModelDataListener(reader, terminator);
}
private NoModelDataListener(
Consumer<RowData> reader,
Consumer<Integer> terminator
){
this.reader = reader;
this.terminator = terminator;
}
@Override
public void invoke(Map<Integer, String> data, AnalysisContext context) {
totalRows ++; //統(tǒng)計數(shù)據(jù)行數(shù)（排除表頭）
invoke(data, context.readRowHolder().getRowIndex());
}
@Override
public void invokeHeadMap(Map<Integer, String> head, AnalysisContext context) {
headMap.putAll(head);//記錄表頭
invoke(head, context.readRowHolder().getRowIndex());
}
@Override
public void doAfterAllAnalysed(AnalysisContext context) {
flush();
if(Objects.nonNull(terminator)){
terminator.accept(totalRows);
}
}
private void flush(){
if(!list.isEmpty()){
doRead();
}
}
private void invoke(Map<Integer, String> data, Integer rowIndex){
list.add(RowData.builder().rowIndex(rowIndex).data(format(data)).build());
if(list.size() >= BATCH_SIZE){
doRead();
list.clear();
}
}
private void doRead(){
list.forEach(reader);
}
private Map<String,String> format(Map<Integer, String> row){
Map<String,String> result = new HashMap<>();
if(headMap.isEmpty()){
row.forEach((colIndex, value) -> {
result.put("Column"+colIndex, value);
});
return result;
}
headMap.forEach((colIndex, title) -> {
String value = row.get(colIndex);
result.put(title.trim(), value);
});
return result;
}
}
@Data
@Builder
public static class RowData {
private Integer rowIndex;
private Map<String, String> data;
/**
* 翻譯
* @param dict 字典<excel標(biāo)題，自定義字段名>
* @return 翻譯后的data
*/
public Map<String,String> translate(Map<String,String> dict){
if(dict==null || dict.isEmpty()){
return data;
}
String newKey;
for (String key : data.keySet().toArray(new String[0])) {
if((newKey = dict.get(key)) != null){
data.put(newKey, data.remove(key));
}
}
return data;
}
}
}
3.測試
package com.visy.utils;
import com.alibaba.fastjson.JSON;
import lombok.extern.slf4j.Slf4j;
import java.util.HashMap;
import java.util.Map;
/**
* @author visy.wang
* @date 2024/9/29 18:11
*/
@Slf4j
public class ExcelReaderTest {
public static void main(String[] args) {
String fileName = "D:\\test\\訂單.xls";
Map<String, String> dict = new HashMap<>();
dict.put("項目編碼", "projectNo");
dict.put("訂單編號", "orderNo");
ExcelReader.read(fileName, rowData -> {
int rowNo = rowData.getRowIndex();
if(rowNo == 0){
log.info("第{}行,表頭：{}", rowNo+1, JSON.toJSONString(rowData.translate(dict)));
}else{
log.info("第{}行，數(shù)據(jù)：{}", rowNo+1, JSON.toJSONString(rowData.translate(dict)));
}
}, total -> {
log.info("所有數(shù)據(jù)已讀取完畢?。。?);
log.info("一共讀取了{(lán)}行數(shù)據(jù)", total);
});
}
}
4.輸出
18:16:48,806 INFO ExcelReaderTest:23 - 第1行,表頭：{"序號":"序號","orderNo":"訂單編號","projectNo":"項目編碼","本次打款總金額":"本次打款總金額","結(jié)算單號":"結(jié)算單號"}
18:16:48,808 INFO ExcelReaderTest:25 - 第2行，數(shù)據(jù)：{"序號":"1","orderNo":"ZC1839511598451183623","projectNo":"KPZCJ1337083789442","本次打款總金額":"8.00元","結(jié)算單號":"GSD1839485349116825600"}
18:16:48,809 INFO ExcelReaderTest:25 - 第3行，數(shù)據(jù)：{"序號":"2","orderNo":"ZC1839511598451183623","projectNo":"KPZCJ1337083789442","本次打款總金額":"8.00元","結(jié)算單號":"GSD1839485422676529152"}
18:16:48,809 INFO ExcelReaderTest:25 - 第4行，數(shù)據(jù)：{"序號":"3","orderNo":"ZC1839504517895606281","projectNo":"XDFW1409599599521","本次打款總金額":"660.00元","結(jié)算單號":"GSD1839504154316558336"}
18:16:48,809 INFO ExcelReaderTest:25 - 第5行，數(shù)據(jù)：{"序號":"4","orderNo":"ZC1839504517895606281","projectNo":"XDFW1409599599521","本次打款總金額":"660.00元","結(jié)算單號":"GSD1839504199178833920"}
18:16:48,810 INFO ExcelReaderTest:25 - 第6行，數(shù)據(jù)：{"序號":"5","orderNo":"ZC1839504517895606281","projectNo":"XDFW1409599599521","本次打款總金額":"660.00元","結(jié)算單號":"GSD1839504234847195136"}
18:16:48,810 INFO ExcelReaderTest:25 - 第7行，數(shù)據(jù)：{"序號":"6","orderNo":"ZC1821415146298589186","projectNo":"DY11432043204258","本次打款總金額":"10.30元","結(jié)算單號":"GSD1821414066009456640"}
18:16:48,810 INFO ExcelReaderTest:25 - 第8行，數(shù)據(jù)：{"序號":"7","orderNo":"ZC1808791262713888770","projectNo":"KPZCJ14131713172905","本次打款總金額":"2.40元","結(jié)算單號":"GSD1808752241082122240"}
18:16:48,811 INFO ExcelReaderTest:25 - 第9行，數(shù)據(jù)：{"序號":"8","orderNo":"ZC1803003717728751618","projectNo":"KPZCJ17264326435074","本次打款總金額":"4.22元","結(jié)算單號":"GSD1803002522666684416"}
18:16:48,811 INFO ExcelReaderTest:25 - 第10行，數(shù)據(jù)：{"序號":"9","orderNo":"ZC1802909083988021250","projectNo":"KPZCJ10285028505852","本次打款總金額":"140.18元","結(jié)算單號":"GSD1802908824310272000"}
18:16:48,811 INFO ExcelReaderTest:25 - 第11行，數(shù)據(jù)：{"序號":"10","orderNo":"ZC1752938634642669569","projectNo":"DY16231023106597","本次打款總金額":"326.94元","結(jié)算單號":"GSD1752938314889904128"}
18:16:48,811 INFO ExcelReaderTest:25 - 第12行，數(shù)據(jù)：{"序號":"11","orderNo":"ZC1751809098261639169","projectNo":"DY11211521153170","本次打款總金額":"165.11元","結(jié)算單號":"GSD1751806326732709888"}
18:16:48,811 INFO ExcelReaderTest:25 - 第13行，數(shù)據(jù)：{"序號":"12","orderNo":"ZC1751803125170135042","projectNo":"DY11211521153170","本次打款總金額":"990.66元","結(jié)算單號":"GSD1751802752413949952"}
18:16:48,811 INFO ExcelReaderTest:25 - 第14行，數(shù)據(jù)：{"序號":"13","orderNo":"ZC1749719747436433410","projectNo":"DY16524552459874","本次打款總金額":"79.66元","結(jié)算單號":"GSD1749719630004310016"}
18:16:48,811 INFO ExcelReaderTest:25 - 第15行，數(shù)據(jù)：{"序號":"14","orderNo":"ZC1748169486398042114","projectNo":"DY1004364367372","本次打款總金額":"199.13元","結(jié)算單號":"GSD1748167443449032704"}
18:16:48,812 INFO ExcelReaderTest:25 - 第16行，數(shù)據(jù)：{"序號":"15","orderNo":"ZC1747882440458670080","projectNo":"DY11121112110728","本次打款總金額":"36.32元","結(jié)算單號":"GSD1747882279347064832"}
18:16:48,813 INFO ExcelReaderTest:25 - 第17行，數(shù)據(jù)：{"序號":"16","orderNo":"ZC1747874805231616001","projectNo":"DY11121112110728","本次打款總金額":"36.32元","結(jié)算單號":"GSD1747874605553385472"}
18:16:48,813 INFO ExcelReaderTest:25 - 第18行，數(shù)據(jù)：{"序號":"17","orderNo":"ZC1734088151878545408","projectNo":"DY11104310438950","本次打款總金額":"22.00元","結(jié)算單號":"GSD1734087575031721984"}
18:16:48,813 INFO ExcelReaderTest:25 - 第19行，數(shù)據(jù)：{"序號":"18","orderNo":"ZC1734049237461590018","projectNo":"DY11104310438950","本次打款總金額":"22.00元","結(jié)算單號":"GSD1734049137159004160"}
18:16:48,813 INFO ExcelReaderTest:25 - 第20行，數(shù)據(jù)：{"序號":"19","orderNo":"ZC16999558515156526","projectNo":"KPZCJ16141014108222","本次打款總金額":"7.07元","結(jié)算單號":"GSD16996681699402290"}
18:16:48,813 INFO ExcelReaderTest:25 - 第21行，數(shù)據(jù)：{"序號":"20","orderNo":"ZC16999548202909446","projectNo":"KPZCJ16141014108222","本次打款總金額":"2.02元","結(jié)算單號":"GSD16996686241470609"}
18:16:48,813 INFO ExcelReaderTest:25 - 第22行，數(shù)據(jù)：{"序號":"21","orderNo":"ZC16994333820644684","projectNo":"DY16445644569459","本次打款總金額":"6.00元","結(jié)算單號":"GSD16994333480323046"}
18:16:48,813 INFO ExcelReaderTest:25 - 第23行，數(shù)據(jù)：{"序號":"22","orderNo":"ZC16994329855599490","projectNo":"DY16361336133168","本次打款總金額":"12.00元","結(jié)算單號":"GSD16994328986634071"}
18:16:48,813 INFO ExcelReaderTest:25 - 第24行，數(shù)據(jù)：{"序號":"23","orderNo":"ZC16994311498202085","projectNo":"DY15303630362489","本次打款總金額":"6.00元","結(jié)算單號":"GSD16994289014792143"}
18:16:48,814 INFO ExcelReaderTest:25 - 第25行，數(shù)據(jù)：{"序號":"24","orderNo":"ZC16994307629649811","projectNo":"DY15261026100064","本次打款總金額":"12.00元","結(jié)算單號":"GSD16994302164484906"}
18:16:48,814 INFO ExcelReaderTest:25 - 第26行，數(shù)據(jù)：{"序號":"25","orderNo":"ZC16927707974275190","projectNo":"DY110400409587","本次打款總金額":"79.66元","結(jié)算單號":"GSD16927707572422541"}
18:16:48,815 INFO ExcelReaderTest:25 - 第27行，數(shù)據(jù)：{"序號":"26","orderNo":"ZC16925872256331116","projectNo":"DY110400409587","本次打款總金額":"79.66元","結(jié)算單號":"GSD16925872037735498"}
18:16:48,815 INFO ExcelReaderTest:25 - 第28行，數(shù)據(jù)：{"序號":"27","orderNo":"ZC16925846964571442","projectNo":"DY110400409587","本次打款總金額":"39.83元","結(jié)算單號":"GSD16925844343207431"}
18:16:48,815 INFO ExcelReaderTest:25 - 第29行，數(shù)據(jù)：{"序號":"28","orderNo":"ZC16925846510308639","projectNo":"DY110400409587","本次打款總金額":"39.83元","結(jié)算單號":"GSD16925844596560052"}
18:16:48,815 INFO ExcelReaderTest:25 - 第30行，數(shù)據(jù)：{"序號":"29","orderNo":"ZC16919940906941897","projectNo":"XDFW14144314434895","本次打款總金額":"10500.00元","結(jié)算單號":"GSD16787892369452546"}
18:16:48,815 INFO ExcelReaderTest:25 - 第31行，數(shù)據(jù)：{"序號":"30","orderNo":"ZC16905399739424309","projectNo":"DY17584958493645","本次打款總金額":"9.00元","結(jié)算單號":"GSD16905399441575256"}
18:16:48,816 INFO ExcelReaderTest:25 - 第32行，數(shù)據(jù)：{"序號":"31","orderNo":"ZC16905396284758057","projectNo":"DY10152215222400","本次打款總金額":"3.06元","結(jié)算單號":"GSD16738389 649603486"}
18:16:48,816 INFO ExcelReaderTest:25 - 第33行，數(shù)據(jù)：{"序號":"32","orderNo":"ZC16899050424420841","projectNo":"DY1406526528402","本次打款總金額":"1864.80元","結(jié)算單號":"GSD16786909746185396"}
18:16:48,816 INFO ExcelReaderTest:25 - 第34行，數(shù)據(jù)：{"序號":"33","orderNo":"ZC16892358221182248","projectNo":"DY1728032832239","本次打款總金額":"866.55元","結(jié)算單號":"GSD16892357362093868"}
18:16:48,816 INFO ExcelReaderTest:25 - 第35行，數(shù)據(jù)：{"序號":"34","orderNo":"ZC16892354367835727","projectNo":"KPZCJ14564156418064","本次打款總金額":"3999.98元","結(jié)算單號":"GSD16892353931173843"}
18:16:48,816 INFO ExcelReaderTest:25 - 第36行，數(shù)據(jù)：{"序號":"35","orderNo":"ZC16890449150466564","projectNo":"KPZCJ17354735471383","本次打款總金額":"29.91元","結(jié)算單號":"GSD16890448923257346"}
18:16:48,816 INFO ExcelReaderTest:25 - 第37行，數(shù)據(jù)：{"序號":"36","orderNo":"ZC16872536243521878","projectNo":"DY1058035839472","本次打款總金額":"2.00元","結(jié)算單號":"GSD16872535451495391"}
18:16:48,817 INFO ExcelReaderTest:25 - 第38行，數(shù)據(jù)：{"序號":"37","orderNo":"ZC16868187396317669","projectNo":"SZBF11313331330765","本次打款總金額":"1.02元","結(jié)算單號":"GSD16868183981406607"}
18:16:48,817 INFO ExcelReaderTest:25 - 第39行，數(shù)據(jù)：{"序號":"38","orderNo":"ZC16855920288559728","projectNo":"XDFW10492049206753","本次打款總金額":"3.00元","結(jié)算單號":"GSD16632261371210492"}
18:16:48,817 INFO ExcelReaderTest:25 - 第40行，數(shù)據(jù)：{"序號":"39","orderNo":"ZC16850945519224107","projectNo":"KPZCJ1006476478025","本次打款總金額":"4.00元","結(jié)算單號":"GSD16850943918013630"}
18:16:48,817 INFO ExcelReaderTest:25 - 第41行，數(shù)據(jù)：{"序號":"40","orderNo":"ZC16850834105212888","projectNo":"KPZCJ09285228529226","本次打款總金額":"30.00元","結(jié)算單號":"GSD16850832789336942"}
18:16:48,817 INFO ExcelReaderTest:25 - 第42行，數(shù)據(jù)：{"序號":"41","orderNo":"ZC16842058367487716","projectNo":"DY17591159110698","本次打款總金額":"75.60元","結(jié)算單號":"GSD16842057388913427"}
18:16:48,817 INFO ExcelReaderTest:25 - 第43行，數(shù)據(jù)：{"序號":"42","orderNo":"ZC16800783925056545","projectNo":"KPZCJ11104710473286","本次打款總金額":"20.00元","結(jié)算單號":"GSD16800783250594232"}
18:16:48,818 INFO ExcelReaderTest:25 - 第44行，數(shù)據(jù)：{"序號":"43","orderNo":"ZC16795435813626761","projectNo":"KPZCJ1406516514663","本次打款總金額":"10.00元","結(jié)算單號":"GSD16723051679897456"}
18:16:48,818 INFO ExcelReaderTest:25 - 第45行，數(shù)據(jù)：{"序號":"44","orderNo":"ZC16790400403067732","projectNo":"DY10102010200793","本次打款總金額":"1050.00元","結(jié)算單號":"GSD16790398836718985"}
18:16:48,819 INFO ExcelReaderTest:25 - 第46行，數(shù)據(jù)：{"序號":"45","orderNo":"ZC16788812382862096","projectNo":"KPZCJ16341034103659","本次打款總金額":"3500.00元","結(jié)算單號":"GSD16787998193851173"}
18:16:48,819 INFO ExcelReaderTest:25 - 第47行，數(shù)據(jù)：{"序號":"46","orderNo":"ZC16788812382862096","projectNo":"KPZCJ16341034103659","本次打款總金額":"3500.00元","結(jié)算單號":"GSD16788809089372484"}
18:16:48,819 INFO ExcelReaderTest:25 - 第48行，數(shù)據(jù)：{"序號":"47","orderNo":"ZC16788812382862096","projectNo":"KPZCJ16341034103659","本次打款總金額":"3500.00元","結(jié)算單號":"GSD16788809206582070"}
18:16:48,819 INFO ExcelReaderTest:25 - 第49行，數(shù)據(jù)：{"序號":"48","orderNo":"ZC16788743433892843","projectNo":"SZWJ1608298295724","本次打款總金額":"17.85元","結(jié)算單號":"GSD16788743263213068"}
18:16:48,819 INFO ExcelReaderTest:25 - 第50行，數(shù)據(jù)：{"序號":"49","orderNo":"ZC16788740588721943","projectNo":"KPZCJ16341034103659","本次打款總金額":"500.00元","結(jié)算單號":"GSD16787998193851173"}
18:16:48,819 INFO ExcelReaderTest:25 - 第51行，數(shù)據(jù)：{"序號":"50","orderNo":"ZC16788739134573304","projectNo":"KPZCJ16341034103659","本次打款總金額":"500.00元","結(jié)算單號":"GSD16788738549722418"}
18:16:48,820 INFO ExcelReaderTest:25 - 第52行，數(shù)據(jù)：{"序號":"51","orderNo":"ZC16788716782212770","projectNo":"DY1103153151761","本次打款總金額":"1.00元","結(jié)算單號":"GSD16788715186262758"}
18:16:48,820 INFO ExcelReaderTest:25 - 第53行，數(shù)據(jù)：{"序號":"52","orderNo":"ZC16788654801253827","projectNo":"KPZCJ16341034103659","本次打款總金額":"500.00元","結(jié)算單號":"GSD16787998193851173"}
18:16:48,820 INFO ExcelReaderTest:25 - 第54行，數(shù)據(jù)：{"序號":"53","orderNo":"ZC16787979223672877","projectNo":"XDFW18294329432132","本次打款總金額":"10000.00元","結(jié)算單號":"GSD16787978625297159"}
18:16:48,820 INFO ExcelReaderTest:25 - 第55行，數(shù)據(jù)：{"序號":"54","orderNo":"ZC16787886778675181","projectNo":"XDFW14144314434895","本次打款總金額":"10500.00元","結(jié)算單號":"GSD16787774522225825"}
18:16:48,820 INFO ExcelReaderTest:25 - 第56行，數(shù)據(jù)：{"序號":"55","orderNo":"ZC16787653644827069","projectNo":"SZWJ1504284280423","本次打款總金額":"500.00元","結(jié)算單號":"GSD16787653162134561"}
18:16:48,820 INFO ExcelReaderTest:25 - 第57行，數(shù)據(jù)：{"序號":"56","orderNo":"ZC16787612066579887","projectNo":"DY10282728275505","本次打款總金額":"1.00元","結(jié)算單號":"GSD16787611608613990"}
18:16:48,820 INFO ExcelReaderTest:25 - 第58行，數(shù)據(jù)：{"序號":"57","orderNo":"ZC16786771793559126","projectNo":"DY1537003703480","本次打款總金額":"330.22元","結(jié)算單號":"GSD16686513487010319"}
18:16:48,820 INFO ExcelReaderTest:25 - 第59行，數(shù)據(jù)：{"序號":"58","orderNo":"ZC16775798382046422","projectNo":"DY17221322139928","本次打款總金額":"1.03元","結(jié)算單號":"GSD16639253044471437"}
18:16:48,821 INFO ExcelReaderTest:25 - 第60行，數(shù)據(jù)：{"序號":"59","orderNo":"ZC16775798382040667","projectNo":"DY13435143514308","本次打款總金額":"8.24元","結(jié)算單號":"GSD16637505266694295"}
18:16:48,822 INFO ExcelReaderTest:25 - 第61行，數(shù)據(jù)：{"序號":"60","orderNo":"ZC16768736820910414","projectNo":"DY1734043445892","本次打款總金額":"12.00元","結(jié)算單號":"GSD16768736573639000"}
18:16:48,822 INFO ExcelReaderTest:25 - 第62行，數(shù)據(jù)：{"序號":"61","orderNo":"ZC16738489062053782","projectNo":"DY09541754174685","本次打款總金額":"4.22元","結(jié)算單號":"GSD16738487696523049"}
18:16:48,822 INFO ExcelReaderTest:25 - 第63行，數(shù)據(jù)：{"序號":"62","orderNo":"ZC16732451795398771","projectNo":"DY13575957594749","本次打款總金額":"2.04元","結(jié)算單號":"GSD16732450923115297"}
18:16:48,822 INFO ExcelReaderTest:25 - 第64行，數(shù)據(jù)：{"序號":"63","orderNo":"ZC16717828381432892","projectNo":"KPZCJ09531953193955","本次打款總金額":"100.99元","結(jié)算單號":"GSD16697992239288898"}
18:16:48,822 INFO ExcelReaderTest:29 - 所有數(shù)據(jù)已讀取完畢?。?！
18:16:48,822 INFO ExcelReaderTest:30 - 一共讀取了63行數(shù)據(jù)
到此這篇關(guān)于Java基于EasyExcel實現(xiàn)讀取Excel文件詳解的文章就介紹到這了,更多相關(guān)Java EasyExcel讀取Excel內(nèi)容請搜索腳本之家以前的文章或繼續(xù)瀏覽下面的相關(guān)文章希望大家以后多多支持腳本之家！
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