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Java中带有文件卷曲模拟的http发送数据库

我想使用与以下示例相当的Java发送POST请求:

echo "param value" | curl --data-binary @-  -uuser:pass https://url

我尝试了ApacheHTTPSetEntity(FileEntity),400个错误请求

我尝试了ApacheHTTPSetEntity(MultiPartEntity),400个错误请求

// ----------------
// General part

String url = "https://url";
String content  = "param" + " " + "value";
File file = new File("test.txt");
try {
            FileUtils.writeStringToFile(file, content, StandardCharsets.UTF_8);
        } catch (IOException e) {
            e.printStackTrace();
        }

String encoding = Base64.getEncoder().encodeToString(("user:pass").getBytes());

DefaultHttpClient httpclient = new DefaultHttpClient();
HttpPost post = new HttpPost(url);
post.setHeader(HttpHeaders.AUTHORIZATION, "Basic " + encoding);

// -----------------
// 1. FileEntity try

FileEntity reqEntity = new FileEntity (file, ContentType.DEFAULT_BINARY);
post.setEntity(reqEntity);

HttpResponse response = httpclient.execute(post);


// ----------------
// 2. Multipart try

MultipartEntity mpEntity = new MultipartEntity();
ContentBody cbFile = new FileBody(file, org.apache.http.entity.ContentType.DEFAULT_BINARY);
mpEntity.addPart("userfile", cbFile);
post.setEntity(mpEntity);

HttpResponse response = httpclient.execute(post);

我本来希望得到200,但收到了400个错误的请求

最初的CURL工作正常


共 (1) 个答案

  1. # 1 楼答案

    边界参数问题不在Content-Type头中

    实际上,如果您使用的是multipart/内容类型之一,那么实际上需要在Content-Type头中指定边界参数,但是在这里,如果curl请求不尝试生成任何边界值,没有边界值,服务器(在HTTP request的情况下)将无法解析有效负载