图片转换成base64码进行显示

tuoheng-admin/src/main/java/com/tuoheng/admin/service/impl/ReportServiceImpl.java

 import javax.servlet.http.HttpServletResponse;
 import java.io.File;
 import java.io.FileInputStream;
+import java.io.InputStream;
 import java.io.OutputStream;
 import java.net.URLEncoder;
+import java.nio.charset.StandardCharsets;
 import java.text.SimpleDateFormat;
 import java.util.*;
 import java.util.List;
         //清空缓存
         response.reset();
         // 定义浏览器响应表头，并定义下载名
-        String urlFileName = URLEncoder.encode("汤山林场无人机巡检报告【"+ reportInfoVO.getReportNo() + "】.doc", "UTF-8");
+        //String urlFileName = URLEncoder.encode("汤山林场无人机巡检报告【"+ reportInfoVO.getReportNo() + "】.doc", "UTF-8");
+        String urlFileName =new String(("汤山林场无人机巡检报告【"+ reportInfoVO.getReportNo() + "】.doc").getBytes(), StandardCharsets.ISO_8859_1);
         response.setHeader("Content-Disposition", "attachment;filename=" + urlFileName);
         response.setCharacterEncoding("utf-8");
         //定义下载的类型
-        response.setContentType("application/msword;charset=gbk");
+        response.setContentType("application/msword;charset=utf-8");
         OutputStream out;
         File files = new File(filePath);
 
             log.info("读出的文件文件地址为：{}",filePath);
-            FileInputStream inputStream = new FileInputStream(files);
+            InputStream inputStream = this.getClass().getResourceAsStream(filePath);
+            //FileInputStream inputStream = //new FileInputStream(files);
             //3.通过response获取ServletOutputStream对象(out)
             out = response.getOutputStream();
             int b = 0;