tif解析更加智能化支持被修改的图片格式

tif解析支持伪格式的(比如jpg 修改后缀) Signed-off-by: 高雄 <admin@cxcp.com>
1 year ago · 355a69b4fc
1 changed files with 26 additions and 20 deletions
--- a/server/src/main/resources/web/tiff.ftl
+++ b/server/src/main/resources/web/tiff.ftl
@ -28,6 +28,21 @@
 </#if>
 <div id="tiff"></div>
 <script>
+    String.prototype.startsWithh = function(str) {
+        var reg = new RegExp("^" + str);
+        return reg.test(this);
+    }
+
+    String.prototype.endsWithh = function(str) {
+        var reg = new RegExp(str + "$");
+        return reg.test(this);
+    }
+    var url = '${finalUrl}';
+    var baseUrl = '${baseUrl}'.endsWithh('/') ? '${baseUrl}' : '${baseUrl}' + '/';
+    if (!url.startsWithh(baseUrl)) {
+        url = baseUrl + 'getCorsFile?urlPath=' + encodeURIComponent(Base64.encode(url));
+    }
+    var myp = document.getElementById('tiff');
    let pages;
    let p;
    let resp;
@ -42,6 +57,14 @@
     try{
    imageData = ctx.createImageData(canvas.width, canvas.height);
 } catch(e){
+  if (e.message.indexOf("CanvasRenderingContext2D")) 
+{ 
+       var imgObjj = new Image();
+             imgObjj.src = url;
+             myp.appendChild(imgObjj);
+             console.log("错误:" + e);
+    return;
+ }
    console.log("错误:" + e);
 var html = "";
 html += "<head>";
@ -86,9 +109,9 @@ html += "    <p>有任何疑问，请加入kk开源社区知识星球咨询：<a
 html += "</div>";
 html += "</body>";
 html += "</html>";
-document.write(html);
-document.close();
-return;
+   document.write(html);
+	document.close();
+    return;
 }
        for (let i = 0; i < rgba.length; i++) {
            imageData.data[i] = rgba[i];
@ -99,7 +122,6 @@ return;
        if (++p < pages.length) {
            imgObj.onload = loadOne;
        }
-        var myp = document.getElementById('tiff');
        myp.appendChild(imgObj);
    }

@ -109,22 +131,6 @@ return;
        p = 0;
        loadOne();
    }
-
-    String.prototype.startsWithh = function(str) {
-        var reg = new RegExp("^" + str);
-        return reg.test(this);
-    }
-
-    String.prototype.endsWithh = function(str) {
-        var reg = new RegExp(str + "$");
-        return reg.test(this);
-    }
-
-    var url = '${finalUrl}';
-    var baseUrl = '${baseUrl}'.endsWithh('/') ? '${baseUrl}' : '${baseUrl}' + '/';
-    if (!url.startsWithh(baseUrl)) {
-        url = baseUrl + 'getCorsFile?urlPath=' + encodeURIComponent(Base64.encode(url));
-    }
    const xhr = new XMLHttpRequest();
    xhr.open('GET', url);
    xhr.responseType = 'arraybuffer';