解决tif图片有时读取不到的问题

pom.xml

@@ -232,12 +232,11 @@
             <artifactId>hibernate-validator</artifactId>
             <version>${hibernate-validator.version}</version>
         </dependency>
-        <!--<dependency>
+        <dependency>
             <groupId>com.twelvemonkeys.imageio</groupId>
             <artifactId>imageio-tiff</artifactId>
-            <version>3.4.1</version>
+            <version>3.6</version>
         </dependency>
--->
     </dependencies>
 
     <build>

src/main/java/com/emr/util/img2PdfUtil.java

@@ -11,11 +11,14 @@ import com.lowagie.text.pdf.*;
 import com.sun.media.jai.codec.ImageCodec;
 import com.sun.media.jai.codec.ImageEncoder;
 import com.sun.media.jai.codec.JPEGEncodeParam;
+import com.twelvemonkeys.imageio.plugins.tiff.TIFFImageReaderSpi;
+import com.twelvemonkeys.imageio.plugins.tiff.TIFFImageWriterSpi;
 import org.apache.commons.lang3.StringUtils;
 import org.springframework.web.context.request.RequestContextHolder;
 import org.springframework.web.context.request.ServletRequestAttributes;
 
 import javax.imageio.ImageIO;
+import javax.imageio.spi.IIORegistry;
 import javax.media.jai.JAI;
 import javax.media.jai.RenderedOp;
 import javax.servlet.http.HttpServletRequest;
@@ -152,8 +155,13 @@ public class img2PdfUtil {
         BufferedImage bufImg = null;
         Graphics2D g = null;
         try {
-            //srcImg = ImageIO.read(srcImgFile);//文件转化为图片
             srcImg = ImageIO.read(new FileInputStream(srcImgFile));
+            if(null == srcImg){
+                IIORegistry registry = IIORegistry.getDefaultInstance();
+                registry.registerServiceProvider(new com.twelvemonkeys.imageio.plugins.tiff.TIFFImageWriterSpi());
+                registry.registerServiceProvider(new com.twelvemonkeys.imageio.plugins.tiff.TIFFImageReaderSpi());
+                srcImg = ImageIO.read(new FileInputStream(srcImgFile));
+            }
             //System.out.println("读取图片"+(end-start)/1000.0+"s");
             int srcImgWidth = srcImg.getWidth(null);//获取图片的宽
             int srcImgHeight = srcImg.getHeight(null);//获取图片的高
@@ -194,7 +202,7 @@ public class img2PdfUtil {
         } catch (Exception e) {
             e.printStackTrace();
             e.getMessage();
-            return null;
+            return outPath;
         }finally {
             if(null != g){
                 g.dispose();// 释放资源*/