[com.example.blog.SnapEngChatRequest]和内容类型[application/x-www-form-urlencoded]没有HttpMessageConverter [英] No HttpMessageConverter for [com.example.blog.SnapEngChatRequest] and content type [application/x-www-form-urlencoded]

问题描述

我想用表单URL编码的标头调用post API.这是我的代码

I wanted to call a post API with form URL encoded header. Here's my code

 var data = SnapEngChatRequest(
            widgetId = widgetId,
            visitorMessage = "Test"
    )

    val headers = HttpHeaders()

    headers.set("x-api-key", apiKey)
    headers.set("Content-Type", "application/x-www-form-urlencoded")

    val entity = HttpEntity(data, headers)

    val converter = FormHttpMessageConverter()
    converter.supportedMediaTypes = singletonList(MediaType.APPLICATION_FORM_URLENCODED)
    restTemplate.messageConverters.add(converter)

    val result = restTemplate.exchange(
            url,
            HttpMethod.POST,
            entity,
            String::class.java
    )

但是不幸的是，它无法正常工作，并且我遇到了错误

But unfortunately, it is not working and I'm getting below error

No HttpMessageConverter for [com.example.blog.SnapEngChatRequest] and content type [application/x-www-form-urlencoded]
org.springframework.web.client.RestClientException: No HttpMessageConverter for [com.example.blog.SnapEngChatRequest] and content type [application/x-www-form-urlencoded]

在这里，我正在提供httpMessageConverter，但是我不确定为什么它没有占用，或者我不确定在这里是否做错了什么.我已经尝试了所有可能的方法.任何帮助都会有所帮助，谢谢！

Here, I'm giving the httpMessageConverter but I'm not sure why it is not taking or I'm not sure if I'm doing something wrong here. I have tried everything possible. Any help will be helpful, Thanks!

推荐答案

来自

...读取和写入"application/x-www-form-urlencoded"媒体类型 作为MultiValueMap

... read and write the "application/x-www-form-urlencoded" media type as MultiValueMap

因此它无法从POJO中读取它.像这样发送您的数据:

So it can't read it from a POJO. Send your data like this:

val data = LinkedMultiValueMap(
  mapOf("widgetId" to listOf(widgetId), "visitorMessage" to listOf("Test"))
)

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