获取图片将时间有效期参数过滤掉

zhanghua

2023-04-19 c68a46c7b29a7f5a21a76ea5e230cd140c2694d8

 ycl-platform/src/main/java/com/ycl/controller/platformApi/AlarmController.java

@@ -14,6 +14,7 @@
import org.springframework.validation.annotation.Validated;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
@@ -21,6 +22,8 @@
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.Base64;
import java.util.Dictionary;
import java.util.Hashtable;

/**
 * @author admin
@@ -30,6 +33,8 @@
@RequestMapping("/API")
public class AlarmController {
    private IVideoAlarmReportService videoAlarmReportService;

    private static Dictionary<String, Integer> sessionDic = new Hashtable<>();

    @Autowired
    private VideoUtil videoUtil;
@@ -66,30 +71,42 @@
    @GetMapping(value = "/img", produces = {MediaType.IMAGE_JPEG_VALUE, MediaType.IMAGE_PNG_VALUE})
//    @GetMapping(value = "/img")
    @ResponseBody
    public byte[] getImages(HttpServletResponse response, @RequestParam String fileUrl, @RequestParam String OSSAccessKeyId, @RequestParam String Signature) {
    public byte[] getImages(HttpServletRequest request, HttpServletResponse response,
                            @RequestParam String fileUrl, @RequestParam(required = false) String OSSAccessKeyId,
                            @RequestParam(required = false) String Signature) {
        String sessionId = request.getSession().getId();
        sessionDic.put(sessionId, 0);
        return getBytes(fileUrl, OSSAccessKeyId, Signature, sessionId);

    }

    private byte[] getBytes(String fileUrl, String OSSAccessKeyId, String Signature, String sessionId) {
        int index = sessionDic.get(sessionId);
        try {
            if (sessionDic.get(sessionId) < 10) {
                sessionDic.remove(sessionId);
                fileUrl = fileUrl.replace("Expires","v");
                System.out.println("getImages获取图片地址：" + fileUrl + "&OSSAccessKeyId=" + OSSAccessKeyId + "&Signature=" + Signature);
                URL url = new URL(fileUrl + "&OSSAccessKeyId=" + OSSAccessKeyId + "&Signature=" + Signature);
                HttpURLConnection conn = (HttpURLConnection) url.openConnection();
                conn.setRequestMethod("GET");
                conn.setConnectTimeout(10 * 1000);
                conn.setRequestProperty("User-Agent", "Mozilla/4.0 (compatible; MSIE 5.0; Windows NT; DigExt)");

            System.out.println("getImages获取图片地址：" + fileUrl + "&OSSAccessKeyId=" + OSSAccessKeyId + "&Signature=" + Signature);
            URL url = new URL(fileUrl + "&OSSAccessKeyId=" + OSSAccessKeyId + "&Signature=" + Signature);
            HttpURLConnection conn = (HttpURLConnection) url.openConnection();
            conn.setRequestMethod("GET");
            conn.setConnectTimeout(10 * 1000);
            conn.setRequestProperty("User-Agent", "Mozilla/4.0 (compatible; MSIE 5.0; Windows NT; DigExt)");
                InputStream inputStream = conn.getInputStream();// 通过输入流获取图片数据

            InputStream inputStream = conn.getInputStream();// 通过输入流获取图片数据
                byte[] data = readInputStream(inputStream);
                System.out.println("getImages获取图片成功");


            byte[] data = readInputStream(inputStream);
            System.out.println("getImages获取图片成功");


            System.out.println("getImages -图片64");
            System.out.println(Base64.getEncoder().encodeToString(data));
            return data;

                return data;
            }
        } catch (Exception e) {
            System.out.println("getImages获取图片失败：" + e.getMessage());
            // e.printStackTrace();
            index++;
            sessionDic.put(sessionId, index);
            System.out.println(index + "-getImages获取图片失败：" + e.getMessage());
            e.printStackTrace();
            getBytes(fileUrl, OSSAccessKeyId, Signature, sessionId);

        }
        return null;
    }