Question

我想创建一个API，生成与Google Earth / Maps API兼容的KML文件以供下载。

目前我面临406不可接受的错误。

代码如下：

@RequestMapping(
        value = "/kml",
        method = RequestMethod.GET)
public @ResponseBody HttpEntity<InputStream> kml() throws IOException
{
    InputStream is = geocodingManager.generateKml(geocodingProviderId);

    HttpHeaders headers = new HttpHeaders();

    headers.add("content-disposition", "attachment; filename=Samo.kml");
    headers.add("content-type", "application/vnd.google-earth.kml+xml");

    return new HttpEntity<InputStream>(is, headers);

}

如果我使用浏览器或RESTClient插件调用API（http://localhost/context/path-to/kml）（即使明确设置了Accept: *.*或Accept: */*标头），我总是会收到错误406 Not Acceptable。< / p>

我首先尝试将produces属性设置为注释，然后决定将其作为尝试删除，但这并没有解决。

如何将KML下载到我的浏览器？

Answer 1

其中一种方式

@RequestMapping(value = "/kml")
public void kml(HttpServletRequest request,HttpServletResponse response) throws IOException
{
    InputStream is = request.getServletContext().getResourceAsStream("/WEB-INF/1.0_week_age.kml");;
    IOUtils.copy(is, response.getOutputStream());
}

或

@RequestMapping(value = "/kml")
public ResponseEntity<byte[]> kml(HttpServletRequest request) throws IOException
{   //get your input stream here 
    InputStream is = request.getServletContext().getResourceAsStream("/WEB-INF/1.0_week_age.kml");
    final HttpHeaders headers = new HttpHeaders();
    headers.setContentType(MediaType.APPLICATION_OCTET_STREAM);
    return new ResponseEntity<byte[]>(IOUtils.toByteArray(is), headers, HttpStatus.CREATED);
}

或者甚至可以使用默认的ByteArrayMessageConverter

@RequestMapping(value = "/kml")
public @ResponseBody byte[] kml(HttpServletRequest request,HttpServletResponse response) throws IOException
{
    InputStream is = request.getServletContext().getResourceAsStream("/WEB-INF/1.0_week_age.kml");
    return IOUtils.toByteArray(is);
}

如果正在访问某些休息服务然后返回kml，您也可以考虑使用RestTemplate

使用Spring MVC下载服务器生成的KML文件

1 个答案: