diff --git a/cloud-common-plugin/src/main/java/com/cm/common/plugin/service/file/impl/FileServiceImpl.java b/cloud-common-plugin/src/main/java/com/cm/common/plugin/service/file/impl/FileServiceImpl.java
index 32d33ce..3f3ac3c 100644
--- a/cloud-common-plugin/src/main/java/com/cm/common/plugin/service/file/impl/FileServiceImpl.java
+++ b/cloud-common-plugin/src/main/java/com/cm/common/plugin/service/file/impl/FileServiceImpl.java
@@ -15,7 +15,6 @@ import com.cm.common.plugin.service.file.IFileService;
 import com.cm.common.pojo.ListPage;
 import com.cm.common.pojo.dtos.FileDTO;
 import com.cm.common.pojo.pos.FilePO;
-import com.cm.common.result.SuccessResult;
 import com.cm.common.result.SuccessResultData;
 import com.cm.common.result.SuccessResultList;
 import com.cm.common.utils.DateUtil;
@@ -30,10 +29,11 @@ import net.coobird.thumbnailator.Thumbnails;
 import org.apache.catalina.connector.ClientAbortException;
 import org.apache.commons.fileupload.disk.DiskFileItem;
 import org.apache.commons.lang3.StringUtils;
+import org.joda.time.DateTime;
+import org.joda.time.DateTimeZone;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.security.core.parameters.P;
 import org.springframework.stereotype.Service;
 import org.springframework.web.multipart.MultipartFile;
 import org.springframework.web.multipart.commons.CommonsMultipartFile;
@@ -343,6 +343,20 @@ public class FileServiceImpl extends AbstractService implements IFileService {
                 response.setHeader("Content-Disposition", "attachment;fileName=" + URLEncoder.encode(filePO.getFileName(), "UTF-8"));
             } else {
                 response.setHeader("Content-Disposition", "inline;fileName=" + URLEncoder.encode(filePO.getFileName(), "UTF-8"));
+                // 如果是图片资源，开启缓存
+                if (isImageFile(filePO.getFileType())) {
+                    // 如果存在校验修改时间且未做修改，返回304，使用本地资源
+                    String ifModifiedSince = request.getHeader("If-Modified-Since");
+                    if (StringUtils.isNotBlank(ifModifiedSince) && StringUtils.equalsIgnoreCase(ifModifiedSince, filePO.getGmtModified())) {
+                        response.setStatus(HttpServletResponse.SC_NOT_MODIFIED);
+                        return;
+                    }
+                    // 缓存有效时间为7天
+                    response.setHeader("Expires", DateTime.now().plusDays(7).toDateTime(DateTimeZone.forID("GMT")).toString());
+                    // 60秒之内不发送新请求
+                    response.setHeader("max-age", "60");
+                    response.setHeader("Last-Modified", filePO.getGmtModified());
+                }
             }
             String rangeString = null;
             if (canRange && request != null) {