Java 用Webflux实现POST_Java_Spring_Spring Boot_Spring Webflux

Java 用Webflux实现POST

java spring spring-boot

Java 用Webflux实现POST,java,spring,spring-boot,spring-webflux,Java,Spring,Spring Boot,Spring Webflux,我有一个html表单，当我在web浏览器中打开它时，它工作正常： <html> <head> <meta HTTP-EQUIV="Content-Type" content="text/html; charset=UTF-8" /> <meta HTTP-EQUIV="Cache-Control" CONTENT="no cache" /> <meta HTTP-EQUIV="Pragma" CONT

我有一个html表单，当我在web浏览器中打开它时，它工作正常：

<html>
   <head>
      <meta HTTP-EQUIV="Content-Type" content="text/html; charset=UTF-8" />
      <meta HTTP-EQUIV="Cache-Control" CONTENT="no cache" />
      <meta HTTP-EQUIV="Pragma" CONTENT="no cache" />
      <meta HTTP-EQUIV="Expires" CONTENT="0" />
   </head>
   <body OnLoad="AutoSubmitForm();">
      <form name="downloadForm" action="https://c3-test.wirecard.com/acssim/app/bank" method="POST">
         <input type="hidden" name="PaReq" value="eJxtU9tuozAQ......." />
         <input type="hidden" name="TermUrl" value="https://www.test.com" />
         <input type="hidden" name="MD" value="optionalValue" />
         <SCRIPT LANGUAGE="Javascript">
             function AutoSubmitForm() { document.downloadForm.submit();} 
         </SCRIPT>
         <input type="submit" name="continue" value="Continue" />
      </form>
   </body>
</html>

但我得到了错误：

org.springframework.web.reactive.function.client.WebClientResponseException$BadRequest:400错误请求

实现这一点的正确方法是什么？

您可以试试这一种

public static <T> T executeApiForFormData(String url, Map<String, String> payload, Map<String, String> headers, Class<T> clazz) {
        WebClient client;
        WebClient.Builder builder = WebClient.builder().baseUrl(url);

        MultiValueMap<String, String> formData = new HttpHeaders();
        formData.setAll(payload);

        if (!ObjectUtils.isEmpty(headers)) {
            MultiValueMap<String, String> map = new HttpHeaders();
            map.setAll(headers);
            builder.defaultHeaders((existingHeaders) -> existingHeaders.addAll(map));
        }


        client = builder.build();

        return client
                .method(HttpMethod.POST)
                .body(BodyInserters.fromFormData(formData))
                .retrieve()
                .bodyToMono(clazz)
                .block();
    }

public static T executeAppiforFormData（字符串url、映射负载、映射头、类clazz）{
网络客户端；
WebClient.Builder=WebClient.Builder（）.baseUrl（url）；
多值映射formData=新的HttpHeaders（）；
formData.setAll（有效载荷）；
如果（！ObjectUtils.isEmpty（头））{
多值映射=新的HttpHeaders（）；
map.setAll（标题）；
builder.defaultHeaders（（existingHeaders）->existingHeaders.addAll（map））；
}
client=builder.build（）；
返回客户端
.方法（HttpMethod.POST）
.body（BodyInserters.fromFormData（formData））
.retrieve（）
.bodyToMono（clazz）
.block（）；
}

通过使用formdata发送formdata，而不是将formdata作为标头发送。。。。

public static <T> T executeApiForFormData(String url, Map<String, String> payload, Map<String, String> headers, Class<T> clazz) {
        WebClient client;
        WebClient.Builder builder = WebClient.builder().baseUrl(url);

        MultiValueMap<String, String> formData = new HttpHeaders();
        formData.setAll(payload);

        if (!ObjectUtils.isEmpty(headers)) {
            MultiValueMap<String, String> map = new HttpHeaders();
            map.setAll(headers);
            builder.defaultHeaders((existingHeaders) -> existingHeaders.addAll(map));
        }


        client = builder.build();

        return client
                .method(HttpMethod.POST)
                .body(BodyInserters.fromFormData(formData))
                .retrieve()
                .bodyToMono(clazz)
                .block();
    }