拆分中图片内容处理

2022-06-07 17:54:37 +08:00
parent 429ae2ec06
commit 73c9754540
5 changed files with 116 additions and 13 deletions
@@ -0,0 +1,35 @@
+package com.jero.modules.oss;
+
+import javax.servlet.http.HttpServletRequest;
+import lombok.extern.slf4j.Slf4j;
+
+import java.net.URLEncoder;
+@Slf4j
+public class SplitFileUtils {
+
+    /**
+     *
+     * @Title: encodeFileName
+     * @Description: 导出文件转换文件名称编码
+     * @param @param fileNames
+     * @param @param request
+     * @param @return    设定文件
+     * @return String    返回类型
+     * @throws
+     */
+    public static String encodeFileName(String fileNames , HttpServletRequest request) {
+        try {
+            String agent = request.getHeader("User-Agent");
+            if (agent.contains("Firefox")) {
+                fileNames = new String(fileNames.getBytes("UTF-8"), "ISO8859-1"); // firefox浏览器
+            } else {
+                fileNames = URLEncoder.encode(fileNames, "utf-8");
+                //谷歌中空格变为+问题
+                fileNames = fileNames.replaceAll("\\+","%20");
+            }
+        } catch (Exception e) {
+            log.error(e.getMessage(),e);
+        }
+        return fileNames ;
+    }
+}
@@ -0,0 +1,67 @@
+package com.jero.modules.oss.controller;
+
+import com.jero.common.exception.JeroBootException;
+import com.jero.modules.oss.SplitFileUtils;
+import com.jero.modules.oss.service.IOSSFileService;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.ResponseBody;
+import sun.misc.BASE64Decoder;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.io.OutputStream;
+import java.util.Base64;
+
+@Slf4j
+@Controller
+@RequestMapping("/sys/split/file")
+public class SplitFileController {
+
+	@Autowired
+	private IOSSFileService ossFileService;
+
+	@ResponseBody
+	@GetMapping("/getImage")
+	public void queryPageList(@RequestParam("fileUrl") String fileUrl, HttpServletResponse response, HttpServletRequest request) {
+
+		//base64解码
+		BASE64Decoder base64Decoder = new BASE64Decoder();
+		try {
+			byte[] bytes = base64Decoder.decodeBuffer(fileUrl);
+			fileUrl = new String(bytes, "utf-8");
+		} catch (IOException e) {
+			throw new JeroBootException("文件不存在");
+		}
+		int splitIndex = fileUrl.lastIndexOf(File.separator);
+		String fileName = fileUrl.substring(splitIndex);
+		response.setHeader("Content-Disposition",
+				"attachment; filename=\""+fileName+"\"");
+		response.setHeader("Content-Disposition",
+				"attachment; filename=\""+ SplitFileUtils.encodeFileName(fileName, request)  +"\"");
+		response.setContentType("application/force-download");
+		try(OutputStream os = response.getOutputStream();
+			FileInputStream fis = new FileInputStream(fileUrl);) {
+
+			int len = 0;
+			while ((len = fis.read()) != -1) {
+				os.write(len);
+			}
+			os.flush();
+		} catch (FileNotFoundException e) {
+			throw new JeroBootException("文件不存在");
+		} catch (IOException e) {
+			throw new JeroBootException("文件不存在");
+		}
+	}
+
+
+}