使用 try-with-resources 语句时下载流已关闭

如何解决使用 try-with-resources 语句时下载流已关闭

我有一个 SpringBoot 服务来下载 ZIP 文件。 如果我将 InputStream 放在 try 块中：

try (InputStream inputStream = new FileInputStream(zipPath.toFile())) {

    InputStreamResource inputStreamResource = new InputStreamResource(inputStream);

    return ResponseEntity.ok()
        .header("Content-disposition","attachment; filename=\"" + zipName + "\"")
        .contentType(MediaType.parseMediaType("application/zip"))
        .body(inputStreamResource);

  } catch (FileNotFoundException e) {
    throw new NotFoundException("Zip File: " + zipPath.toFile().getAbsolutePath() + " does not exists");
  }

，下载失败并出现以下错误

java.io.IOException: Stream Closed
at java.base/java.io.FileInputStream.readBytes(Native Method) ~[na:na]
at java.base/java.io.FileInputStream.read(FileInputStream.java:257) ~[na:na]
at org.springframework.util.StreamUtils.copy(StreamUtils.java:165) ~[spring-core-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.http.converter.ResourceHttpMessageConverter.writeContent(ResourceHttpMessageConverter.java:137) ~[spring-web-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.http.converter.ResourceHttpMessageConverter.writeInternal(ResourceHttpMessageConverter.java:129) ~[spring-web-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.http.converter.ResourceHttpMessageConverter.writeInternal(ResourceHttpMessageConverter.java:45) ~[spring-web-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.http.converter.AbstractHttpMessageConverter.write(AbstractHttpMessageConverter.java:227) ~[spring-web-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.AbstractMessageConverterMethodProcessor.writeWithMessageConverters(AbstractMessageConverterMethodProcessor.java:290) ~[spring-webmvc-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.httpentityMethodProcessor.handleReturnValue(httpentityMethodProcessor.java:219) ~[spring-webmvc-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.web.method.support.HandlerMethodReturnValueHandlerComposite.handleReturnValue(HandlerMethodReturnValueHandlerComposite.java:82) ~[spring-web-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.ServletinvocableHandlerMethod.invokeAndHandle(ServletinvocableHandlerMethod.java:123) ~[spring-webmvc-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:879) ~[spring-webmvc-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:793) ~[spring-webmvc-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[spring-webmvc-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.web.servlet.dispatcherServlet.dodispatch(dispatcherServlet.java:1040) ~[spring-webmvc-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.web.servlet.dispatcherServlet.doService(dispatcherServlet.java:943) ~[spring-webmvc-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) ~[spring-webmvc-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898) ~[spring-webmvc-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:634) ~[tomcat-embed-core-9.0.34.jar:9.0.34]
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) ~[spring-webmvc-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:741) ~[tomcat-embed-core-9.0.34.jar:9.0.34]

如果我删除了 try 块

  InputStreamResource inputStreamResource = new InputStreamResource(new FileInputStream(zipPath.toFile()));

  return ResponseEntity.ok()
      .header("Content-disposition","attachment; filename=\"" + zipName + "\"")
      .contentType(MediaType.parseMediaType("application/zip"))
      .body(inputStreamResource);

下载工作正常。 有没有人知道为什么会发生这种情况？

提前谢谢