在 Jax-Rs 上使用注释 Post 发送和不发送文件

Question

我正在开发 Jax-Rs 服务，我必须创建一些有文件和无文件的东西。

 @POST
    @Path("makesomething")
    @Consumes(MediaType.MULTIPART_FORM_DATA)
    @Produces(MediaType.TEXT_PLAIN)
       public String makesomething(@FormDataParam("file") InputStream uploadedInputStream, @FormDataParam("file") FormDataContentDisposition fileDetail, @FormDataParam("variable") String variable, @Context HttpServletRequest request) throws IOException {
        //make something
        }

如果我不发送文件，我会收到一条错误消息，说必须发送文件。我怎样才能在不发送文件的情况下做到这一点？

Answer 1

André 是对的，像这样的东西应该可以正常工作（假设当您不上传文件时您只是发布表单数据）：

@POST
@Path("makesomething")
@Consumes(MediaType.MULTIPART_FORM_DATA)
@Produces(MediaType.TEXT_PLAIN)
public String makesomething(@FormDataParam("file") InputStream uploadedInputStream, @FormDataParam("file") FormDataContentDisposition fileDetail, @FormDataParam("variable") String variable, @Context HttpServletRequest request) throws IOException {
    makeSomethingImpl(uploadedInputStream, fileDetail, variable, request);
}

@POST
@Path("makesomething")
@Consumes(MediaType.APPLICATION_FORM_URLENCODED)
@Produces(MediaType.TEXT_PLAIN)
public String makesomething(@FormDataParam("variable") String variable, @Context HttpServletRequest request) throws IOException {
    makeSomethingImpl(null, null, variable, request);
}

private String makeSomethingImpl(final InputStream uploadedInputStream, final FormDataContentDisposition fileDetail, final String variable, final HttpServletRequest request) {
    // make something
}

在 Jax-Rs 上使用注释 Post 发送和不发送文件

Send and not send a file using annotation Post on Jax-Rs

java

jax-rs