将文本文件从.Net http客户端上传到InputStream格式的Java REST API

Question

我有一个案例,我想从.Net http客户端上传文本文件到InputStream格式的Java REST API.当我使用Form-Data Body中的File从Postman访问Java REST时,该文件在Java REST服务中得到了很好的接收.当我尝试从.Net客户端做同样的事情时,我得到了一些例外,如下所示.

我的.Net HTTP客户端代码如下,

var client = new HttpClient();
client.BaseAddress = new Uri("http://localhost:8082/processes/view/createDocumentfromFile/851");
client.DefaultRequestHeaders.Accept.Add(new System.Net.Http.Headers.MediaTypeWithQualityHeaderValue("application/json"));
client.DefaultRequestHeaders.Add("procId", "100");
client.DefaultRequestHeaders.Add("DocName", "ProphetWorkflow");
var content = new MultipartFormDataContent();
content.Add(new ByteArrayContent(File.ReadAllBytes(@"C:\Users\charan.ghate\Desktop\Calculation.txt")));
HttpResponseMessage messge = client.PostAsync(client.BaseAddress, content).Result;
if (messge.IsSuccessStatusCode)
{
    string result = messge.Content.ReadAsStringAsync().Result;
    lblResponse.Text = result;
}

我的Java REST服务代码如下,

@POST
@Path("/createDocumentfromFile/{procId}")
@Consumes({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML, MediaType.TEXT_PLAIN })
@Produces({ MediaType.APPLICATION_JSON })
public Response createDocumentfromFile(@PathParam("procId") Long piOID, @HeaderParam("DocName") String modulename,
        @Context HttpServletRequest request, @Context HttpServletResponse response,
        @FormDataParam("file") InputStream uploadedInputStream) {
//
//Operation on the input stream
//
}

当我点击REST API时,我在.Net以及Java中都得到了例外,详见下文

.Net错误消息:

StatusCode: 500, ReasonPhrase: 'Internal Server Error', Version: 1.1, Content: System.Net.Http.StreamContent, Headers:
{
  Connection: close
  Date: Fri, 23 Dec 2016 15:08:03 GMT
  Server: Apache-Coyote/1.

Java异常:

    Dec 23, 2016 8:38:03 PM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet [cxf-jaxrs-servlet] in context with path [/ipp-portal] threw exception [Servlet execution threw an exception] with root cause
java.lang.NoSuchMethodError: javax.ws.rs.ClientErrorException.validate(Ljavax/ws/rs/core/Response;Ljavax/ws/rs/core/Response$Status$Family;)Ljavax/ws/rs/core/Response;
    at javax.ws.rs.ClientErrorException.<init>(ClientErrorException.java:88)
    at org.apache.cxf.jaxrs.utils.JAXRSUtils.findTargetMethod(JAXRSUtils.java:503)
    at org.apache.cxf.jaxrs.interceptor.JAXRSInInterceptor.processRequest(JAXRSInInterceptor.java:198)
    at org.apache.cxf.jaxrs.interceptor.JAXRSInInterceptor.handleMessage(JAXRSInInterceptor.java:90)
    at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:272)
    at org.apache.cxf.transport.ChainInitiationObserver.onMessage(ChainInitiationObserver.java:121)
    at org.apache.cxf.transport.http.AbstractHTTPDestination.invoke(AbstractHTTPDestination.java:239)
    at org.apache.cxf.transport.servlet.ServletController.invokeDestination(ServletController.java:248)
    at org.apache.cxf.transport.servlet.ServletController.invoke(ServletController.java:222)
    at org.apache.cxf.transport.servlet.ServletController.invoke(ServletController.java:153)
    at org.apache.cxf.transport.servlet.CXFNonSpringServlet.invoke(CXFNonSpringServlet.java:167)
    at org.apache.cxf.transport.servlet.AbstractHTTPServlet.handleRequest(AbstractHTTPServlet.java:286)
    at org.apache.cxf.transport.servlet.AbstractHTTPServlet.doPost(AbstractHTTPServlet.java:206)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:650)
    at org.apache.cxf.transport.servlet.AbstractHTTPServlet.service(AbstractHTTPServlet.java:262)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
    at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
    at org.eclipse.stardust.ui.web.html5.EnhancedJarResourceFilter.doFilter(EnhancedJarResourceFilter.java:140)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
    at com.icesoft.faces.webapp.http.servlet.TouchSessionFilter.doFilter(TouchSessionFilter.java:77)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:505)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:169)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
    at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:956)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:436)
    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1078)
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:625)
    at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:316)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    at java.lang.Thread.run(Thread.java:745)

能否请您建议将文件从.Net客户端传输到Java REST服务的最佳方法.

Answer 1

例外情况

java.lang.NoSuchMethodError: javax.ws.rs.ClientErrorException.validate(Ljavax/ws/rs/core/Response;Ljavax/ws/rs/core/Response$Status$Family;)Ljavax/ws/rs/core/Response ;

意味着它尝试在运行时从它找不到的Response validate(final Response response, Response.Status.Family expectedStatusFamily)类中获取类型的方法。ClientErrorException

当您使用一个版本的库构建应用程序并针对不兼容的不同版本运行它时，通常会发生这种情况。

知道此方法自 以来已添加JAX-RS 2.0，我相信您使用JAX-RS 2.0或更高版本编译了代码，并且您的类路径中有一个1.x在运行时使用的版本。检查运行时使用的类路径，并确保您仅拥有与JAX-RS编译时使用的版本相同的版本。