Easyexcel read excel simple demo

Maven

<dependency>
    <groupId>com.alibaba</groupId>
    <artifactId>easyexcel</artifactId>
    <version>2.2.10</version>
</dependency>
<dependency>
    <groupId>org.projectlombok</groupId>
    <artifactId>lombok</artifactId>
    <version>1.18.20</version>
</dependency>
<dependency>
    <groupId>com.alibaba</groupId>
    <artifactId>fastjson</artifactId>
    <version>1.2.76</version>
</dependency>

Excel

DemoData

package com.demo.test.easyExcel;

import com.alibaba.excel.annotation.ExcelProperty;
import com.alibaba.excel.annotation.format.DateTimeFormat;
import com.alibaba.excel.annotation.format.NumberFormat;

/** *  Data entity class  * * @author zhao.hualuo * Create at 2021/5/31 */
@lombok.Data
public class DemoData {
    

    @ExcelProperty(" String title ")
    private String string;

    @ExcelProperty(" Date title ")
    @DateTimeFormat("yyyy year MM month dd Japan ")
    private String dateStr;

    @ExcelProperty(" Digital title ")
    @NumberFormat("#.##%")
    private String doubleData;
}

DemoDataListener

package com.demo.test.easyExcel;

import com.alibaba.excel.context.AnalysisContext;
import com.alibaba.excel.event.AnalysisEventListener;
import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/** *  Monitor  * DemoDataListener  Can not be spring management , Every time you read excel Both new, And then it uses spring You can construct methods to pass in  * * @author zhao.hualuo * Create at 2021/5/31 */
public class DemoDataListener extends AnalysisEventListener {
    

    private static final Logger LOGGER = LoggerFactory.getLogger(DemoDataListener.class);

    int index = 0;

    /** *  Every data parsing will call  */
    @Override
    public void invoke(Object object, AnalysisContext context) {
    
        DemoData demoData = JSONObject.parseObject(JSON.toJSONString(object), DemoData.class);
        // Do business logic processing 
        index ++;
        LOGGER.info(" Parse to a piece of data {}:{}", index, demoData.toString());
    }

    /** *  After all data analysis is completed   Will call this one  */
    @Override
    public void doAfterAllAnalysed(AnalysisContext analysisContext) {
    
        // Finishing work 
        LOGGER.info(" All data analysis completed ！" + index);
    }

}

DemoMain

package com.demo.test.easyExcel;

import com.alibaba.excel.EasyExcel;

/** *  Execute the main function  * * @author zhao.hualuo * Create at 2021/5/31 */
public class DemoMain {
    

    public static void main(String[] args) {
    
        String fileName = "D:\\Documents\\person\\zhao.hualuo\\ desktop \\demo.xlsx";
        EasyExcel.read(fileName, DemoData.class,new DemoDataListener()).sheet().doRead();
    }
}

Execution results

15:33:32.070 [main] INFO com.demo.test.easyExcel.DemoDataListener - Parse to a piece of data 1:DemoData(string=aaa, dateStr=2020 year 01 month 01 Japan , doubleData=100%)
15:33:32.072 [main] INFO com.demo.test.easyExcel.DemoDataListener - Parse to a piece of data 2:DemoData(string=bbb, dateStr=2020 year 01 month 02 Japan , doubleData=200%)
15:33:32.073 [main] INFO com.demo.test.easyExcel.DemoDataListener - Parse to a piece of data 3:DemoData(string=ccc, dateStr=2020 year 01 month 03 Japan , doubleData=300%)
15:33:32.075 [main] INFO com.demo.test.easyExcel.DemoDataListener - Parse to a piece of data 4:DemoData(string=ddd, dateStr=2020 year 01 month 04 Japan , doubleData=400%)
15:33:32.077 [main] INFO com.demo.test.easyExcel.DemoDataListener - Parse to a piece of data 5:DemoData(string=eee, dateStr=2020 year 01 month 05 Japan , doubleData=500%)
15:33:32.078 [main] INFO com.demo.test.easyExcel.DemoDataListener - Parse to a piece of data 6:DemoData(string=fff, dateStr=2020 year 01 month 06 Japan , doubleData=600%)
15:33:32.081 [main] INFO com.demo.test.easyExcel.DemoDataListener - Parse to a piece of data 7:DemoData(string=ggg, dateStr=2020 year 01 month 07 Japan , doubleData=700%)
15:33:32.083 [main] INFO com.demo.test.easyExcel.DemoDataListener - Parse to a piece of data 8:DemoData(string=hhh, dateStr=2020 year 01 month 08 Japan , doubleData=800%)
15:33:32.083 [main] INFO com.demo.test.easyExcel.DemoDataListener - Parse to a piece of data 9:DemoData(string=iii, dateStr=2020 year 01 month 09 Japan , doubleData=900%)
15:33:32.084 [main] INFO com.demo.test.easyExcel.DemoDataListener - Parse to a piece of data 10:DemoData(string=jjj, dateStr=2020 year 01 month 10 Japan , doubleData=1000%)
15:33:32.085 [main] INFO com.demo.test.easyExcel.DemoDataListener - All data analysis completed ！10