udi-wms-java/src/main/java/com/glxp/api/util/JasperUtils.java

package com.glxp.api.util;

import cn.hutool.json.JSONUtil;
import com.alibaba.fastjson.JSON;
import net.sf.jasperreports.engine.*;
import net.sf.jasperreports.engine.export.ooxml.JRDocxExporter;
import net.sf.jasperreports.engine.query.JsonQueryExecuterFactory;
import net.sf.jasperreports.engine.util.JRLoader;
import net.sf.jasperreports.export.SimpleExporterInput;
import net.sf.jasperreports.export.SimpleOutputStreamExporterOutput;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;

import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.*;
import java.nio.charset.StandardCharsets;
import java.util.HashMap;
import java.util.Locale;
import java.util.Map;

/**
 * Jasperreport工具类
 *
 * @author chenqf
 * @date 2021-11-10 22:23
 */
@Component
public class JasperUtils {
    private static Logger logger = LoggerFactory.getLogger(JasperUtils.class);

    public static final String PDF_TYPE = "pdf";
    public static final String WORD_TYPE = "word";
    public static final String EXCEL_TYPE = "excel";
    public static final String HTML_TYPE = "html";

    /*
     * data 传入报表数据
     * jasperResource 模板文件路径
     */
    public static void jasperReport(HttpServletRequest request, HttpServletResponse response, Map<String, Object> data, String jasperResource, String type) throws IOException, JRException {
        try {
            HashMap<String, Object> map = new HashMap<String, Object>();
            logger.error(JSON.toJSONString(data));
            InputStream is = new ByteArrayInputStream(JSONUtil.toJsonStr(data).getBytes(StandardCharsets.UTF_8));
            map.put("JSON_INPUT_STREAM", is); //填充报表数据
            map.put(JsonQueryExecuterFactory.JSON_LOCALE, Locale.ENGLISH);
            FileInputStream jasperStream = new FileInputStream(new File(jasperResource));
            JasperReport jasperReport = (JasperReport) JRLoader.loadObject(jasperStream);
            //报表填充
            JasperPrint jasperPrint = JasperFillManager.fillReport(jasperReport, map);
            String fileName = new String("export.pdf".getBytes("GBK"), "ISO8859_1");
            ServletOutputStream os = response.getOutputStream();
            response.setDateHeader("Expires", 0);
            response.setHeader("Content-disposition", "attachment; filename=" + fileName);
            if (type != null && WORD_TYPE.equals(type)) {
                response.setContentType("appliction/msword; charset=utf-8");
                JRDocxExporter exporter = new JRDocxExporter();
                exporter.setExporterInput(new SimpleExporterInput(jasperPrint));
                exporter.setExporterOutput(new SimpleOutputStreamExporterOutput(os));
                exporter.exportReport();
            } else {
                response.setContentType("application/pdf; charset=utf-8");
                JasperExportManager.exportReportToPdfStream(jasperPrint, os);
                os.flush();
                os.close();
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    public static void jasperReport(HttpServletRequest request, HttpServletResponse response, String data, String jasperResource, String type) throws IOException, JRException {
        try {
            HashMap<String, Object> map = new HashMap<String, Object>();
            logger.error(JSON.toJSONString(data));
            InputStream is = new ByteArrayInputStream(data.getBytes("UTF-8"));
            map.put("JSON_INPUT_STREAM", is); //填充报表数据
            map.put(JsonQueryExecuterFactory.JSON_LOCALE, Locale.ENGLISH);
            FileInputStream jasperStream = new FileInputStream(new File(jasperResource));
            JasperReport jasperReport = (JasperReport) JRLoader.loadObject(jasperStream);
            //报表填充
            JasperPrint jasperPrint = JasperFillManager.fillReport(jasperReport, map);
            String fileName = new String("export.pdf".getBytes("GBK"), "ISO8859_1");
            ServletOutputStream os = response.getOutputStream();
            response.setDateHeader("Expires", 0);
            response.setHeader("Content-disposition", "attachment; filename=" + fileName);
            if (type != null && WORD_TYPE.equals(type)) {
                response.setContentType("appliction/msword; charset=utf-8");
                JRDocxExporter exporter = new JRDocxExporter();
                exporter.setExporterInput(new SimpleExporterInput(jasperPrint));
                exporter.setExporterOutput(new SimpleOutputStreamExporterOutput(os));
                exporter.exportReport();
            } else {
                response.setContentType("application/pdf; charset=utf-8");
                JasperExportManager.exportReportToPdfStream(jasperPrint, os);
                os.flush();
                os.close();
            }
        } catch (Exception e) {

            e.printStackTrace();

        }
    }


    public static void jasperReportToFile(String filePath, Map<String, Object> data, String jasperResource) throws IOException, JRException {
        try {
            HashMap<String, Object> map = new HashMap<String, Object>();
            logger.error(JSON.toJSONString(data));
            InputStream is = new ByteArrayInputStream(JSONUtil.toJsonStr(data).getBytes(StandardCharsets.UTF_8));
            map.put("JSON_INPUT_STREAM", is); //填充报表数据
            map.put(JsonQueryExecuterFactory.JSON_LOCALE, Locale.ENGLISH);
//		    ClassPathResource resource = new ClassPathResource(jasperResource);
            FileInputStream jasperStream = new FileInputStream(new File(jasperResource));
//			InputStream jasperStream = resource.getInputStream();

            JasperReport jasperReport = (JasperReport) JRLoader.loadObject(jasperStream);
            //报表填充
            JasperPrint jasperPrint = JasperFillManager.fillReport(jasperReport, map);
            File createFile = new File(filePath);
            if (!createFile.exists()) {
                createFile.createNewFile();
            }
            JasperExportManager.exportReportToPdfFile(jasperPrint, filePath);

        } catch (Exception e) {

            e.printStackTrace();

        }
    }

}