diff --git a/solon-cloud-file/aliyun-oss-solon-cloud-plugin/pom.xml b/solon-cloud-file/aliyun-oss-solon-cloud-plugin/pom.xml
index e09d539b22c6e2cb64290df21df3b4672ec172f1..d34e86c3c67e3e9d5f5eb1ac11c3ad2b351b3a5d 100644
--- a/solon-cloud-file/aliyun-oss-solon-cloud-plugin/pom.xml
+++ b/solon-cloud-file/aliyun-oss-solon-cloud-plugin/pom.xml
@@ -40,4 +40,4 @@
         </dependency>
     </dependencies>
 
-</project>
\ No newline at end of file
+</project>
diff --git a/solon-cloud-file/aliyun-oss-solon-cloud-plugin/src/main/java/org/noear/solon/cloud/extend/aliyun/oss/service/CloudFileServiceOssImpl.java b/solon-cloud-file/aliyun-oss-solon-cloud-plugin/src/main/java/org/noear/solon/cloud/extend/aliyun/oss/service/CloudFileServiceOssImpl.java
index 226ff6b2f6ab8826d5ffe98786f5ef292274e1fc..c073b5b0dcbd7b4ecd7306f15778e2164d36d7d1 100644
--- a/solon-cloud-file/aliyun-oss-solon-cloud-plugin/src/main/java/org/noear/solon/cloud/extend/aliyun/oss/service/CloudFileServiceOssImpl.java
+++ b/solon-cloud-file/aliyun-oss-solon-cloud-plugin/src/main/java/org/noear/solon/cloud/extend/aliyun/oss/service/CloudFileServiceOssImpl.java
@@ -26,6 +26,7 @@ import org.noear.solon.net.http.HttpUtils;
 
 import javax.crypto.Mac;
 import javax.crypto.spec.SecretKeySpec;
+import java.net.URLEncoder;
 import java.time.Duration;
 import java.util.*;
 
@@ -103,7 +104,25 @@ public class CloudFileServiceOssImpl implements CloudFileService {
 
     @Override
     public String getTempUrl(String bucket, String key, Duration duration) throws CloudFileException, UnsupportedOperationException {
-        throw new UnsupportedOperationException();
+        if (Utils.isEmpty(bucket)) {
+            bucket = bucketDef;
+        }
+
+        try {
+            long expires = System.currentTimeMillis() / 1000 + duration.getSeconds();
+
+            String objPath = "/" + bucket + "/" + key;
+            String url = buildUrl(bucket, key);
+
+            String signData = buildSignData("GET", Long.toString(expires), objPath, null);
+            String signature = hmacSha1(signData, secretKey);
+
+            String encodedSignature = URLEncoder.encode(signature, CHARSET_UTF8);
+
+            return url + "?Expires=" + expires + "&OSSAccessKeyId=" + accessKey + "&Signature=" + encodedSignature;
+        } catch (Exception ex) {
+            throw new CloudFileException(ex);
+        }
     }
 
     @Override
diff --git a/solon-cloud-file/aliyun-oss-solon-cloud-plugin/src/test/java/demo/DemoTest.java b/solon-cloud-file/aliyun-oss-solon-cloud-plugin/src/test/java/demo/DemoTest.java
index a6887081d851728fac8baaaaa673de0e4ca67f22..25414e0f668fb925a6d2127a95d21ecfa2d2be9f 100644
--- a/solon-cloud-file/aliyun-oss-solon-cloud-plugin/src/test/java/demo/DemoTest.java
+++ b/solon-cloud-file/aliyun-oss-solon-cloud-plugin/src/test/java/demo/DemoTest.java
@@ -16,16 +16,15 @@
 package demo;
 
 import org.junit.jupiter.api.Test;
-import org.junit.jupiter.api.extension.ExtendWith;
 import org.noear.solon.cloud.CloudClient;
 import org.noear.solon.cloud.model.Media;
 import org.noear.solon.core.handle.Result;
-import org.noear.solon.test.SolonJUnit5Extension;
 import org.noear.solon.test.SolonTest;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 import java.io.IOException;
+import java.time.Duration;
 
 /**
  * @author noear 2021/10/18 created
@@ -60,4 +59,11 @@ public class DemoTest {
 
         System.out.println("times: " + (System.currentTimeMillis() - start));
     }
+
+    @Test
+    public void testGetTempUrl() {
+        CloudClient.file().put(key, media);
+        String url = CloudClient.file().getTempUrl(key, Duration.ofMinutes(10));
+        System.out.println(url);
+    }
 }