spring XlsViewTests 源码

spring XlsViewTests 代码

文件路径：/spring-webmvc/src/test/java/org/springframework/web/servlet/view/document/XlsViewTests.java

/*
 * Copyright 2002-2019 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.springframework.web.servlet.view.document;

import java.io.ByteArrayInputStream;
import java.util.HashMap;
import java.util.Map;

import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.junit.jupiter.api.Test;

import org.springframework.web.servlet.View;
import org.springframework.web.testfixture.servlet.MockHttpServletRequest;
import org.springframework.web.testfixture.servlet.MockHttpServletResponse;

import static org.assertj.core.api.Assertions.assertThat;

/**
 * Tests for AbstractXlsView and its subclasses.
 *
 * @author Juergen Hoeller
 * @since 4.2
 */
public class XlsViewTests {

	private final MockHttpServletRequest request = new MockHttpServletRequest();

	private final MockHttpServletResponse response = new MockHttpServletResponse();


	@Test
	@SuppressWarnings("resource")
	public void testXls() throws Exception {
		View excelView = new AbstractXlsView() {
			@Override
			protected void buildExcelDocument(Map<String, Object> model, Workbook workbook,
					HttpServletRequest request, HttpServletResponse response) throws Exception {
				Sheet sheet = workbook.createSheet("Test Sheet");
				Row row = sheet.createRow(0);
				Cell cell = row.createCell(0);
				cell.setCellValue("Test Value");
			}
		};

		excelView.render(new HashMap<>(), request, response);

		Workbook wb = new HSSFWorkbook(new ByteArrayInputStream(response.getContentAsByteArray()));
		assertThat(wb.getSheetName(0)).isEqualTo("Test Sheet");
		Sheet sheet = wb.getSheet("Test Sheet");
		Row row = sheet.getRow(0);
		Cell cell = row.getCell(0);
		assertThat(cell.getStringCellValue()).isEqualTo("Test Value");
	}

	@Test
	@SuppressWarnings("resource")
	public void testXlsxView() throws Exception {
		View excelView = new AbstractXlsxView() {
			@Override
			protected void buildExcelDocument(Map<String, Object> model, Workbook workbook,
					HttpServletRequest request, HttpServletResponse response) throws Exception {
				Sheet sheet = workbook.createSheet("Test Sheet");
				Row row = sheet.createRow(0);
				Cell cell = row.createCell(0);
				cell.setCellValue("Test Value");
			}
		};

		excelView.render(new HashMap<>(), request, response);

		Workbook wb = new XSSFWorkbook(new ByteArrayInputStream(response.getContentAsByteArray()));
		assertThat(wb.getSheetName(0)).isEqualTo("Test Sheet");
		Sheet sheet = wb.getSheet("Test Sheet");
		Row row = sheet.getRow(0);
		Cell cell = row.getCell(0);
		assertThat(cell.getStringCellValue()).isEqualTo("Test Value");
	}

	@Test
	@SuppressWarnings("resource")
	public void testXlsxStreamingView() throws Exception {
		View excelView = new AbstractXlsxStreamingView() {
			@Override
			protected void buildExcelDocument(Map<String, Object> model, Workbook workbook,
					HttpServletRequest request, HttpServletResponse response) throws Exception {
				Sheet sheet = workbook.createSheet("Test Sheet");
				Row row = sheet.createRow(0);
				Cell cell = row.createCell(0);
				cell.setCellValue("Test Value");
			}
		};

		excelView.render(new HashMap<>(), request, response);

		Workbook wb = new XSSFWorkbook(new ByteArrayInputStream(response.getContentAsByteArray()));
		assertThat(wb.getSheetName(0)).isEqualTo("Test Sheet");
		Sheet sheet = wb.getSheet("Test Sheet");
		Row row = sheet.getRow(0);
		Cell cell = row.getCell(0);
		assertThat(cell.getStringCellValue()).isEqualTo("Test Value");
	}

}

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