java使用easyexcel读取excel内容-编程知识

java使用easyexcel读取excel内容

java 代码读取excel内容。

使用阿里巴巴easyexcel读取excel内容。

##excel内容

##依赖

<dependency><groupId>com.alibaba</groupId><artifactId>easyexcel</artifactId><version>3.1.5</version></dependency>

##实体类TableExcelInfo

package com.yym.entity;import com.alibaba.excel.annotation.ExcelProperty;import java.io.Serializable;public class TableExcelInfo implements Serializable {@ExcelProperty("表名称")private String c_A;@ExcelProperty("用途")private String c_B;@ExcelProperty("数量")private int c_C;@ExcelProperty("框架&业务共用")private String c_D;@ExcelProperty("是否再用")private String c_E;public String getC_A() {return c_A;}public void setC_A(String c_A) {this.c_A = c_A;}public String getC_B() {return c_B;}public void setC_B(String c_B) {this.c_B = c_B;}public int getC_C() {return c_C;}public void setC_C(int c_C) {this.c_C = c_C;}public String getC_D() {return c_D;}public void setC_D(String c_D) {this.c_D = c_D;}public String getC_E() {return c_E;}public void setC_E(String c_E) {this.c_E = c_E;}
}

##读取excel工具类ReadExcelUtils

package com.yym.utils;import com.alibaba.excel.EasyExcel;
import com.alibaba.excel.context.AnalysisContext;
import com.alibaba.excel.read.listener.ReadListener;
import com.alibaba.excel.util.ListUtils;
import com.alibaba.fastjson.JSONObject;
import com.yym.entity.TableExcelInfo;import java.util.ArrayList;
import java.util.List;public class ReadExcelUtils {/*** 单次缓存的数据量*/public static final int BATCH_COUNT = 100000;/***临时存储*/public static List<TableExcelInfo> cachedDataList = ListUtils.newArrayListWithExpectedSize(BATCH_COUNT);public static List<String> tablesName = new ArrayList<>();public static void readExcel(String fileName, String sheetName) {EasyExcel.read(fileName, TableExcelInfo.class, new ReadListener<TableExcelInfo>() {@Overridepublic void invoke(TableExcelInfo data, AnalysisContext context) {cachedDataList.add(data);}@Overridepublic void doAfterAllAnalysed(AnalysisContext context) {for(int i=0;i<cachedDataList.size();i++) {System.out.println(JSONObject.toJSONString(cachedDataList.get(i)));if("是".equals(cachedDataList.get(i).getC_E())) {tablesName.add(cachedDataList.get(i).getC_A());}}System.out.println(JSONObject.toJSONString(tablesName));}}).sheet(sheetName).doRead();}public static void main(String[] args) {readExcel("F:\\information_schema.xlsx", "Sheet1");}}

##调用工具类

ReadExcelUtils.readExcel("F:\\\\information_schema.xlsx", "Sheet3");

##结果