我正在将我的scala 2.11.6,playframework 2.3.8与open-ocr(tesseract)集成,它需要发送多部分/相关数据。
我正在尝试这样做,手动生成多部分请求
val postBody = s"""--separator--
|Content-Type: application/json;
|
| { "engine": "tesseract" }
|
|--separator--
| Content-Type: image/png;
|
| ${Base64.getEncoder().encodeToString(image)}
|--separator--
""".stripMargin
val parseResult = WS.
url("http://127.0.0.1:9292/ocr-file-upload").
withMethod("POST").
withHeaders(
"Content-Type" -> "multipart/related",
"boundary" -> "separator").
withBody(postBody).
execute()
但它不起作用。 Open-ocr无法读取请求标头。
我该怎么做?
答案 0 :(得分:0)
我使用的解决方案是使用ning Multipart响应生成器手动生成body。
旧版 1.8.0 :
{
"resname": "Sankalp",
"restadd": "Infocity",
"resttime": "South Indian",
"images": "25"
}
{
"resname": "South Cafe",
"restadd": "Infocity",
"resttime": "South Indian",
"images": "20"
}
{
"resname": "Uncle Sam",
"restadd": "Infocity",
"resttime": "Pizza",
"images": "15"
}
{
"resname": "Dangee Dums",
"restadd": "Infocity",
"resttime": "Dessert",
"images": "10"
}
{
"resname": "Fresh Roast",
"restadd": "Infocity",
"resttime": "Cafe",
"images": "5"
}
最新版本 1.9.31 :
import com.ning.http.client.FluentCaseInsensitiveStringsMap
import com.ning.http.client.multipart._
...
// Step 1. Generating tesseract json configuration
val json = new StringPart("config", """{ "engine": "tesseract" }""", "utf-8")
json.setContentType("application/json")
// Step 2. Generating file part
val filePart = new FilePart("file", new ByteArrayPartSource("image.png", image), "image/png", null)
// Step 3. Build up the Multiparts
val reqE = new MultipartRequestEntity(
Array(filePart, json),
new FluentCaseInsensitiveStringsMap().add("Content-Type", "multipart/related")
)
// Step 3.1. Streaming result to byte array
val bos = new ByteArrayOutputStream()
reqE.writeRequest(bos)
// Step 4. Performing WS request upload request
val parseResult = WS
.url("http://127.0.0.1:9292/ocr-file-upload")
.withHeaders("Content-Type" -> reqE.getContentType()).
post(bos.toByteArray());
// Step 5. Mapping result to parseResult
parseResult.map(_.body)