Java 在新选项卡中显示pdf不适用于jquery和spring mvc

我想在生成pdf后在新选项卡中显示它，我使用jQuery1.12.3和SpringMVC4

当我点击我的链接时，我生成了pdf，我的ajax方法显示成功，但我的pdf没有显示在新选项卡中，我忘记了什么

我浏览了以下帖子：

我试图删除ResponseBody注释，但得到了相同的结果

这是我的密码：

HTML:

<a id="3676274" class="bulletinLink" target="_blank" href="#">Bulletin du 2015-04-30</a>

$(".bulletinLink").click(function(e){
    e.preventDefault();
    var id = $(this).attr('id');

    var oAjax;
    var sUrl = sUrlBase + '/generatePdf/'+id;

    oAjax = $.ajax({
            url: sUrl,
            type: 'GET',
            cache: false,
            data : '',
            async : false
    });

    oAjax.done(function(transport) {
        alert("success");
    });
    oAjax.fail(function(transport) {
        alert("fail");
    });
});

@RequestMapping(value = "/generatePdf/{id}", method = RequestMethod.GET)
@ResponseBody
public final ResponseEntity<byte[]> generateWithResponseBody(@PathVariable("id") final int idBulletin
            ,final HttpServletRequest httpRequete, final HttpServletResponse httpReponse) throws ApplicationException
{
...
HttpHeaders headers = new HttpHeaders();
headers.setContentType( MediaType.parseMediaType( "application/pdf" ) );
String filename = "spring_tutorial.pdf";
headers.setContentDispositionFormData( filename, filename );
headers.setCacheControl("must-revalidate, post-check=0, pre-check=0");
ResponseEntity<byte[]> response = new ResponseEntity<byte[]>(out.toByteArray(), headers, HttpStatus.OK);
return response;
}

Java:

<a id="3676274" class="bulletinLink" target="_blank" href="#">Bulletin du 2015-04-30</a>

$(".bulletinLink").click(function(e){
    e.preventDefault();
    var id = $(this).attr('id');

    var oAjax;
    var sUrl = sUrlBase + '/generatePdf/'+id;

    oAjax = $.ajax({
            url: sUrl,
            type: 'GET',
            cache: false,
            data : '',
            async : false
    });

    oAjax.done(function(transport) {
        alert("success");
    });
    oAjax.fail(function(transport) {
        alert("fail");
    });
});

@RequestMapping(value = "/generatePdf/{id}", method = RequestMethod.GET)
@ResponseBody
public final ResponseEntity<byte[]> generateWithResponseBody(@PathVariable("id") final int idBulletin
            ,final HttpServletRequest httpRequete, final HttpServletResponse httpReponse) throws ApplicationException
{
...
HttpHeaders headers = new HttpHeaders();
headers.setContentType( MediaType.parseMediaType( "application/pdf" ) );
String filename = "spring_tutorial.pdf";
headers.setContentDispositionFormData( filename, filename );
headers.setCacheControl("must-revalidate, post-check=0, pre-check=0");
ResponseEntity<byte[]> response = new ResponseEntity<byte[]>(out.toByteArray(), headers, HttpStatus.OK);
return response;
}

@RequestMapping（value=“/generatePdf/{id}”，method=RequestMethod.GET）
@应答器
公共最终响应Entity generateWithResponseBody（@PathVariable（“id”）final int idBulletin
，最终HttpServletRequest HttpRequeste，最终HttpServletResponse HttpReporte）引发应用程序异常
{
...
HttpHeaders=新的HttpHeaders（）；
headers.setContentType（MediaType.parseMediaType（“application/pdf”）；
字符串filename=“spring\u tutorial.pdf”；
headers.setContentDispositionFormData（文件名、文件名）；
headers.setCacheControl（“必须重新验证，后检查=0，前检查=0”）；
ResponseEntity response=新的ResponseEntity（out.toByteArray（），headers，HttpStatus.OK）；
返回响应；
}

问题是您需要将文件添加到HttpServletResponse，并且不需要在方法中返回任何值，因此使用void，将文件添加到响应中，浏览器将正确处理它

@RequestMapping(value = "/generatePdf/{id}", method = RequestMethod.GET)
@ResponseBody
public final void generateWithResponseBody(@PathVariable("id") final int idBulletin
            ,final HttpServletRequest httpRequete, final HttpServletResponse reponse) throws ApplicationException
{
    //Here retrieve your PDF file
    if(file != null) {
        String mimeType = URLConnection.guessContentTypeFromName(file.getName());
        if (mimeType == null) {
            logger.debug("mimetype is not detectable, will take default");
            mimeType = "application/pdf";
        }
        logger.debug("mimetype : {}", mimeType);
        response.setContentType(mimeType);
        response.setHeader("Content-Disposition", String.format("attachment; filename=\"%s\"", file.getName()));
        response.setContentLength((int) file.length());
        InputStream inputStream = new BufferedInputStream(new FileInputStream(file));
        FileCopyUtils.copy(inputStream, response.getOutputStream());
    }
}

---

我在没有Ajax的情况下更改了jquery函数，如下所示：

window.open(sUrl);

此外，为了在选项卡中显示我的pdf文件并且不下载，我在控制器中删除了以下说明：

headers.setContentDispositionFormData( filename, filename );