在宁静的Web服务中下载文件 [英] file downloading in restful web services
本文介绍了在宁静的Web服务中下载文件的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我的要求是,我应该向客户发送一个10MB的zip文件,并提供宁静的服务。我在论坛中发现发送 StreamingOutput
对象的代码是更好的方法,但是如何创建 StreamingOutput
对象在以下代码中:
My requirement is, I should send a 10MB zip file to the client with a restful service. I found the code in forums that sending a StreamingOutput
object is the better way, but how can I create a StreamingOutput
object in the following code:
@Path("PDF-file.pdf/")
@GET
@Produces({"application/pdf"})
public StreamingOutput getPDF() throws Exception {
return new StreamingOutput() {
public void write(OutputStream output) throws IOException, WebApplicationException
{
try {
//------
} catch (Exception e) {
throw new WebApplicationException(e);
}
}
};
}
推荐答案
它更好的方式和简单文件下载的方式。
Its the better way and easy way for file dowload.
private static final String FILE_PATH = "d:\\Test2.zip";
@GET
@Path("/get")
@Produces(MediaType.APPLICATION_OCTET_STREAM)
public Response getFile() {
File file = new File(FILE_PATH);
ResponseBuilder response = Response.ok((Object) file);
response.header("Content-Disposition", "attachment; filename=newfile.zip");
return response.build();
}
根据您的要求提供代码:
For your code as you asked:
@GET
@Path("/helloWorldZip")
@Produces(MediaType.APPLICATION_OCTET_STREAM)
public StreamingOutput helloWorldZip() throws Exception {
return new StreamingOutput(){
@Override
public void write(OutputStream arg0) throws IOException, WebApplicationException {
// TODO Auto-generated method stub
BufferedOutputStream bus = new BufferedOutputStream(arg0);
try {
//ByteArrayInputStream reader = (ByteArrayInputStream) Thread.currentThread().getContextClassLoader().getResourceAsStream();
//byte[] input = new byte[2048];
java.net.URL uri = Thread.currentThread().getContextClassLoader().getResource("");
File file = new File("D:\\Test1.zip");
FileInputStream fizip = new FileInputStream(file);
byte[] buffer2 = IOUtils.toByteArray(fizip);
bus.write(buffer2);
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
};
}
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