springboot 读取 resource文件

文件位置信息如图；
import java.io.IOException;

import java.io.InputStream;

import java.net.URLEncoder;

import java.nio.charset.StandardCharsets;

import java.util.ArrayList;

import java.util.HashMap;

import java.util.List;

import java.util.Map;

import java.util.regex.Matcher;

import java.util.regex.Pattern;

import javax.servlet.ServletOutputStream;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import org.apache.commons.io.IOUtils;

import org.apache.poi.hssf.usermodel.HSSFWorkbook;

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.springframework.beans.factory.annotation.Autowired;

import org.springframework.beans.factory.annotation.Value;

import org.springframework.core.io.Resource;

import org.springframework.core.io.ResourceLoader;

import org.springframework.util.LinkedMultiValueMap;

import org.springframework.util.MultiValueMap;

import org.springframework.web.bind.annotation.RequestMapping;

import org.springframework.web.bind.annotation.ResponseBody;

import org.springframework.web.bind.annotation.RestController;

import org.springframework.web.client.RestTemplate;

import org.springframework.web.multipart.MultipartFile;

import org.springframework.web.servlet.ModelAndView;

import com.gdtopway.common.utils.AjaxJson;

import com.szsj.entity.sample.SampleGrid;

import com.szsj.entity.sample.SampleInformatization;

import com.szsj.entity.sample.SampleMarkettechnilogy;

import com.szsj.entity.sample.SampleOthertechnology;

import com.szsj.entity.sample.SampleProductiontechnology;

import com.szsj.entity.sample.SampleScience;

import com.szsj.entity.sample.SampleSmallconstruction;

import com.szsj.entity.sample.SampleUtil;

import com.szsj.entity.semantic.TreeVO;

@RestController

@RequestMapping("/sample")

public class SampleController {

	@javax.annotation.Resource

	private ResourceLoader resourceLoader;

  /**

	 * 下载抽样模板文件

	 */

	@RequestMapping("downLoadExcel")

	public void downLoadExcel(HttpServletResponse response, HttpServletRequest request) {

		InputStream inputStream = null;

    	ServletOutputStream servletOutputStream = null;

    	try {

    		String filename = "抽样模板.xls";

	        String path = "cymb.xls";

	        Resource resource = resourceLoader.getResource("classpath:"+path);response.setContentType("application/vnd.ms-excel");

	        response.addHeader("Cache-Control", "no-cache, no-store, must-revalidate");

	        response.addHeader("charset", "utf-8");

	        response.addHeader("Pragma", "no-cache");

	        String encodeName = URLEncoder.encode(filename, StandardCharsets.UTF_8.toString());

	        response.setHeader("Content-Disposition", "attachment; filename=\"" + encodeName + "\"; filename*=utf-8''" + encodeName);

	        inputStream = resource.getInputStream();

	        servletOutputStream = response.getOutputStream();

	        IOUtils.copy(inputStream, servletOutputStream);

	        response.flushBuffer();

		} catch (Exception e) {

			e.printStackTrace();

		} finally {

			try {

				if (servletOutputStream != null) {

					servletOutputStream.close();

					servletOutputStream = null;

				}

				if (inputStream != null) {

					inputStream.close();

					inputStream = null;

				}

				// 召唤jvm的垃圾回收器

				System.gc();

			} catch (Exception e) {

				e.printStackTrace();

			}

		}

	}

}
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springboot 读取 resource文件

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