从Commons HttpClient切换到HttpComponents后出现“格式不正确的请求”错误

时间:2014-12-03 14:15:40

标签: java migration apache-httpclient-4.x apache-commons-httpclient

我有一些代码,向API发送multipart/form-data请求。使用Apache的commons-httpclient 3.1它可以工作,但是切换到httpclient 4.3.5,我遇到了API的问题。您可以在下面找到两个代码示例。由于它与Salesforce API有关,我还向SFSE发布了一个问题,因为我仍然不确定它是否是我或他们身边的问题。但是,我的问题是:我是否正确地将代码迁移到4.3.5?如果是,httpclient的行为是否与执行multipart/form-data请求有关?

代码示例如下:

commons-httpclient 3.1

String json = "{ \"body\":{ \"messageSegments\":[ { \"type\":\"Text\", \"text\":\"Here is another receipt.\" } ] }, \"capabilities\":{ \"content\":{ \"title\":\"receipt2\"} } }";

PostMethod filePost = new PostMethod("https://eu3.salesforce.com/services/data/v32.0/chatter/feed-elements/<some_feed_element_id>/capabilities/comments/items");
filePost.addRequestHeader("Authorization", token());

StringPart jsonPart = new StringPart("json", json);
jsonPart.setContentType(ContentType.APPLICATION_JSON.getMimeType());

FilePart filePart = new FilePart("feedElementFileUpload", file);
filePart.setContentType(ContentType.APPLICATION_OCTET_STREAM.getMimeType());

Part[] parts = { jsonPart, filePart };
filePost.setRequestEntity(new MultipartRequestEntity(parts, filePost.getParams()));
int response = httpclient.executeMethod(filePost);

有线/上下文日志:http://pastebin.com/RCg20Ygn

httpclient 4.3.5

String json = "{ \"body\":{ \"messageSegments\":[ { \"type\":\"Text\", \"text\":\"Here is another receipt.\" } ] }, \"capabilities\":{ \"content\":{ \"title\":\"receipt2\"} } }";

String attachmentName = "package.xml";
CloseableHttpClient client = HttpClientBuilder
    .create()
    .setDefaultHeaders(Lists.newArrayList())
    .build();
HttpPost post = new HttpPost(
   "https://eu3.salesforce.com/services/data/v32.0/chatter/feed-elements/<feed_element_id>/capabilities/comments/items"
);
post.addHeader(HttpHeaders.AUTHORIZATION, token());
post.addHeader(HttpHeaders.CONTENT_TYPE, ContentType.MULTIPART_FORM_DATA.getMimeType());

post.setEntity(
    MultipartEntityBuilder.create()
        .setStrictMode()
        .addPart(
            "json",
            new StringBody(
                json,
                ContentType.APPLICATION_JSON
            )
        )
        .addPart(
            "feedElementFileUpload",
            new FileBody(
                new File(attachmentName),
                ContentType.APPLICATION_OCTET_STREAM,
                attachmentName
            )
        )
        .build()
);
CloseableHttpResponse response = client.execute(post);

有线/上下文日志:http://pastebin.com/EHXd1y50

更新1:

我已经为MultipartEntityBuilderSTRICTBROWSER_COMPATIBLERFC6532)尝试了所有三种可用模式,但它仍然无效。< / p>

1 个答案:

答案 0 :(得分:1)

在使用MultipartEntityBuilder构建请求实体时尝试使用'浏览器兼容'模式而不是'strict'

更新1:

"Content-Type: multipart/form-data[\r][\n]"

这显然是错误的(缺少边界属性),可能是请求被拒绝的原因。

请删除此行,然后重试

post.addHeader(HttpHeaders.CONTENT_TYPE, ContentType.MULTIPART_FORM_DATA.getMimeType());