Question

我想使用 Apache HttpClient 发送 multipart / mixed 请求，并按如下所示请求正文，但我的代码未添加 Content-Type：multipart / related; boundary = penFL6sBQHJJUN3HA4ftqC 部分加入请求正文。

 --f0Ve5iPP2ySppIcDSR6Bak   
**Content-Type: multipart/related;boundary=penFL6sBQHJJUN3HA4ftqC**       
--penFL6sBQHJJUN3HA4ftqC

Content-Type: application/vnd.siemens.mindsphere.meta+json

{    
    "type": "item",   
    "version": "1.0",   
    "payload": {    
        "type": "standardTimeSeries",   
        "version": "1.0",    
        "details": {  
            "configurationId": "1551207800470"   
        }  
    }    
}


--penFL6sBQHJJUN3HA4ftqC   
Content-Type: application/json    

[    
    {    
        "timestamp": "2019-03-01T10:00:03.780Z",    
        "values": [    
            {    
                "dataPointId": "1551207763818",    
                "value": "10",    
                "qualityCode": "0"    
            }    
        ]    
    }   
]

--penFL6sBQHJJUN3HA4ftqC--    
--f0Ve5iPP2ySppIcDSR6Bak--    
/r/n

所以，我的代码如下，

        HttpEntity entity = MultipartEntityBuilder.create()
              .setMimeSubtype("mixed")
              .addPart(FormBodyPartBuilder.create()
                .setName("configuration")
                .setBody(new StringBody(part1, ContentType.create("application/vnd.siemens.mindsphere.meta+json")))
                .build())
              .addPart(FormBodyPartBuilder.create()
                .setName("datapoints")
                .setBody(new StringBody(part2, ContentType.APPLICATION_JSON))
                .build())
              .build();     

            HttpPost post = new HttpPost("https://endpointurl");
            post.addHeader("Authorization","Bearer AuthKey goes here");
            post.setEntity(entity);         
            HttpResponse response = httpClient.execute(post);

但是如上所述，这并未在请求正文中设置 Content-Type：multipart / related 。（请参阅请求主体的最上层Content-Type）如果我这样设置，

  HttpEntity entity2 = MultipartEntityBuilder.create()
              .setMimeSubtype("mixed")
              .setContentType(ContentType.create("multipart/related"))

...

它会删除请求标头中的 multipart / mixed ，并放入multipart / related。我的要求是，如上所示，要在正文中发送包含多部分/相关内容的多部分/混合请求。在Apache HttpClient中如何做？

如何使用Apache HttpClient在多部分/混合请求中设置多部分/相关的内容类型

0 个答案: