1、新建Excel文件，準備好測試資料

在當前工程的resources目錄下，新建檔名為testdata的Excel文件

開啟Excel，將當前sheet重新命名為calculator，構造num1、num2、result三個引數資料

2、新建一個ExcelData類用來獲取Excel中的資料

ExcelData類需要引入jxl.jar包，jxl.jar是專門處理excel中資料的，程式碼如下:

package com.mcj.testng;
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import
 
 java.util.HashMap;
import jxl.Cell;
import jxl.Sheet;
import jxl.Workbook;
import jxl.read.biff.BiffException;

public class ExcelData {
    public Workbook workbook;
    public Sheet sheet;
    public Cell cell;
    int rows;
    int columns;
    public String fileName;
    public String caseName;
    public
 
 ArrayList<String> arrkey = new ArrayList<String>();
    String sourceFile;

    /**
     * @param fileName   excel檔名
     * @param caseName   sheet名
     */
    public ExcelData(String fileName, String caseName) {
        super();
        this.fileName = fileName;
        this.caseName = caseName;
    }

    /**
     * 獲得excel表中的資料
     */
 

    public Object[][] getExcelData() throws BiffException, IOException {

        workbook = Workbook.getWorkbook(new File(getPath()));
        sheet = workbook.getSheet(caseName);
        rows = sheet.getRows();
        columns = sheet.getColumns();
        // 為了返回值是Object[][],定義一個多行單列的二維陣列
        HashMap<String, String>[][] arrmap = new HashMap[rows - 1][1];
        // 對陣列中所有元素hashmap進行初始化
        if (rows > 1) {
            for (int i = 0; i < rows - 1; i++) {
                arrmap[i][0] = new HashMap<>();
            }
        } else {
            System.out.println("excel中沒有資料");
        }

        // 獲得首行的列名，作為hashmap的key值
        for (int c = 0; c < columns; c++) {
            String cellvalue = sheet.getCell(c, 0).getContents();
            arrkey.add(cellvalue);
        }
        // 遍歷所有的單元格的值新增到hashmap中
        for (int r = 1; r < rows; r++) {
            for (int c = 0; c < columns; c++) {
                String cellvalue = sheet.getCell(c, r).getContents();
                arrmap[r - 1][0].put(arrkey.get(c), cellvalue);
            }
        }
        return arrmap;
    }

    /**
     * 獲得excel檔案的路徑
     * @return
     * @throws IOException
     */
    public String getPath() throws IOException {
        File directory = new File(".");
        sourceFile = directory.getCanonicalPath() + "\\src\\resources\\"
                + fileName + ".xls";
        return sourceFile;
    }

}

3、建立TestNg測試類CalculatorExcel

package com.mcj.testng;
import java.io.IOException;
import java.util.HashMap;
import org.testng.Assert;
import org.testng.annotations.DataProvider;
import org.testng.annotations.Test;
import jxl.read.biff.BiffException;

public class CalculatorExcel {

    Calculator cal=new Calculator();

    @DataProvider(name="num")
    public Object[][] Numbers() throws BiffException, IOException{
        ExcelData e=new ExcelData("testdata", "calculator");
        return e.getExcelData();
    }
    @Test(dataProvider="num")
    public void testAdd(HashMap<String, String> data){
        System.out.println(data.toString());
        float num1=Float.parseFloat(data.get("num1"));
        float num2=Float.parseFloat(data.get("num2"));
        float expectedResult=Float.parseFloat(data.get("result"));  
        Float actual=cal.add(num1, num2);
        Assert.assertEquals(actual, expectedResult);
    }
}

4、執行結果

{result=10.4, num2=3.9, num1=6.5}
{result=7, num2=2, num1=5}
{result=15, num2=8, num1=7}
{result=8.8, num2=3.3, num1=5.5}
{result=-2, num2=3, num1=-5}
{result=2.6, num2=-2, num1=4.6}
{result=27, num2=23, num1=4}
{result=37, num2=12, num1=25}
PASSED: testAdd({result=10.4, num2=3.9, num1=6.5})
PASSED: testAdd({result=7, num2=2, num1=5})
PASSED: testAdd({result=15, num2=8, num1=7})
PASSED: testAdd({result=8.8, num2=3.3, num1=5.5})
PASSED: testAdd({result=-2, num2=3, num1=-5})
PASSED: testAdd({result=2.6, num2=-2, num1=4.6})
PASSED: testAdd({result=27, num2=23, num1=4})
PASSED: testAdd({result=37, num2=12, num1=25})

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Default test
Tests run: 8, Failures: 0, Skips: 0