我应该为MultipartEntity设置Content-Type标头吗? [英] Should I set the Content-Type header for a MultipartEntity?

问题描述

我有一小段代码，它在同一POST中提交XML实体以及二进制数据.我为此使用 httpclient 和 httpmime .

I've got a small piece of code which submits an XML entity along with binary data in the same POST. I'm using the httpclient and httpmime for this.

我不太确定是否应为此请求设置Content-Type标头.毕竟Content-Type既是application/xml又是application/octet-stream.

I'm not quite sure if I should set the Content-Type header for this request. After all, the Content-Type is both application/xml and application/octet-stream.

此的正确用法是什么?

    post = new HttpPost(uri);
    post.setHeader("Authorization", auth);

    // Should I set Content-Type at all?
    post.setHeader("Content-Type", mimeType + ";charset=UTF-8");

    MultipartEntityBuilder b = MultipartEntityBuilder.create();
    b.addTextBody("data", payload, ContentType.APPLICATION_XML);
    b.addBinaryBody("file", file);
    post.setEntity(b.build());

推荐答案

否，您不应该.您应该让HttpClient根据消息实体的属性自动生成Content-Type以及其他内容元数据标头.

No, you should not. You should let HttpClient generate Content-Type as well as other content metadata headers automatically based on properties of the message entity.

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