package com.glxp.api.upload;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.http.HttpServletResponse;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.OutputStream;

@RestController
public class ImageController {
    @Value("${file_path}")
    private String filePath;


    @GetMapping(value = "/spms/donwload/pdf")
    public void downloadPdf(HttpServletResponse response,
                            @RequestParam String fileName) throws IOException {
        OutputStream os = null;
        try {
            FileInputStream input = new FileInputStream(new File(filePath + "/pdfprint/" + fileName));
            response.setDateHeader("Expires", 0);
            response.setHeader("Content-disposition", "inline; filename=" + "export.pdf");
            response.setContentType("application/pdf; charset=utf-8");
            OutputStream out = response.getOutputStream();
//            JasperExportManager.exportReportToPdfStream(input,out);
            byte[] b = new byte[2048];
            int len;
            while ((len = input.read(b)) != -1) {
                out.write(b, 0, len);
            }
            input.close();
        } catch (IOException e) {

        } finally {
            if (os != null) {
                os.flush();
                os.close();
            }
        }
    }

}