在新的浏览器选项卡中打开ResponseEntity PDF [英] Open ResponseEntity PDF in new browser tab

问题描述

我遇到了一个有用的PDF生成代码，用于在Spring MVC应用程序中向客户端显示该文件（返回生成PDF使用Spring MVC ）：

I came across a helpful PDF generation code to show the file to the client in a Spring MVC application ("Return generated PDF using Spring MVC"):

@RequestMapping(value = "/form/pdf", produces = "application/pdf")
public ResponseEntity<byte[]> showPdf(DomainModel domain, ModelMap model) {
    createPdf(domain, model);

    Path path = Paths.get(PATH_FILE);
    byte[] pdfContents = null;
    try {
        pdfContents = Files.readAllBytes(path);
    } catch (IOException e) {
        e.printStackTrace();
    }

    HttpHeaders headers = new HttpHeaders();
    headers.setContentType(MediaType.parseMediaType("application/pdf"));
    String filename = NAME_PDF;
    headers.setContentDispositionFormData(filename, filename);
    headers.setCacheControl("must-revalidate, post-check=0, pre-check=0");
    ResponseEntity<byte[]> response = new ResponseEntity<byte[]>(
            pdfContents, headers, HttpStatus.OK);
    return response;
}

我添加了声明该方法返回PDF文件（\"Spring 3.0 Java REST返回PDF文档）： produce =application / pdf 。

I added a declaration that the method returns a PDF file ("Spring 3.0 Java REST return PDF document"): produces = "application/pdf".

我的问题是，当执行上面的代码时，它会立即要求客户端保存PDF文件。我希望首先在浏览器中查看PDF文件，以便客户端决定是否保存。

My problem is that when the code above is executed, it immediately asks the client to save the PDF file. I want the PDF file to be viewed first in the browser so that the client can decide whether to save it or not.

我发现\"如何获取PDF内容（从Spring MVC控制器方法提供）以显示在新窗口中建议添加< Spring表单标签中的code> target =_ blank。我测试了它，正如预期的那样，它显示了一个新选项卡，但保存提示再次出现。

I found "How to get PDF content (served from a Spring MVC controller method) to appear in a new window" that suggests to add target="_blank" in the Spring form tag. I tested it and as expected, it showed a new tab but the save prompt appeared again.

另一个是我无法在我的浏览器中通过Java 的方法打开.pdf来添加 httpServletResponse.setHeader（Content-处置，内联）; 但我不使用 HttpServletRequest 来提供我的PDF文件。

Another is "I can't open a .pdf in my browser by Java"'s method to add httpServletResponse.setHeader("Content-Disposition", "inline"); but I don't use HttpServletRequest to serve my PDF file.

如果给出我的代码/情况，如何在新选项卡中打开PDF文件？

How can I open the PDF file in a new tab given my code/situation?

推荐答案

尝试

httpServletResponse.setHeader("Content-Disposition", "inline");

但是使用responseEntity如下。

But using the responseEntity as follows.

HttpHeaders headers = new HttpHeaders();
headers.add("content-disposition", "attachment; filename=" + fileName)
ResponseEntity<byte[]> response = new ResponseEntity<byte[]>(
            pdfContents, headers, HttpStatus.OK);

应该有效

不确定这个，但似乎你使用了不好的setContentDispositionFormData，尝试>

Not sure about this, but it seems you are using bad the setContentDispositionFormData, try>

headers.setContentDispositionFormData("attachment", fileName);

请告知我是否有效

更新

此行为取决于您尝试
服务的浏览器和文件。使用内联，浏览器将尝试在
浏览器中打开文件。

This behavior depends on the browser and the file you are trying to serve. With inline, the browser will try to open the file within the browser.

headers.setContentDispositionFormData("inline", fileName);

或

headers.add("content-disposition", "inline;filename=" + fileName)

阅读本文以了解内容内联和附件之间

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