Question

一个人想从InputStream中放入数据，但是Jersey无法自动检测数据长度，也不能预设Content-Length标头。

Response destinationResponse = responseWebTarget
                    .request()
                    .header(HEADER_X_AUTH_TOKEN, cmd.getOptionValue("dat"))
                    .put(Entity.entity(inputStream, MediaType.APPLICATION_OCTET_STREAM))

结果是：

INFO: 2 * Sending client request on thread main
2 > PUT http://192.168.1.10:8080/v1/AUTH_system/08138784704e2/test
2 > Content-Type: application/octet-stream
2 > X-Auth-Token: AUTH_tka2d071e5ba3e46e58cbbc3bdcc57bc70

我知道数据长度，并尝试手动添加标头：

            Object contentLength = sourceResponse.getHeaders().get(HTTP.CONTENT_LEN).get(0);
            Response destinationResponse = responseWebTarget
                    .request()
                    .header(HTTP.CONTENT_LEN, contentLength)
                    .header(HEADER_X_AUTH_TOKEN, cmd.getOptionValue("dat"))
                    .put(Entity.entity(is, MediaType.APPLICATION_OCTET_STREAM))

现在请求看起来不错，但是Jersey抛出异常：

INFO: 2 * Sending client request on thread main
2 > PUT http://192.168.1.10:8080/v1/AUTH_system/08138784704e2/test
2 > Content-Length: 2760033628
2 > Content-Type: application/octet-stream
2 > X-Auth-Token: AUTH_tka2d071e5ba3e46e58cbbc3bdcc57bc70

Exception in thread "main" javax.ws.rs.ProcessingException: org.apache.http.client.ClientProtocolException
    at org.glassfish.jersey.apache.connector.ApacheConnector.apply(ApacheConnector.java:472)
    at org.glassfish.jersey.client.ClientRuntime.invoke(ClientRuntime.java:254)
    at org.glassfish.jersey.client.JerseyInvocation.lambda$invoke$0(JerseyInvocation.java:729)
    at org.glassfish.jersey.internal.Errors.process(Errors.java:292)
    at org.glassfish.jersey.internal.Errors.process(Errors.java:274)
    at org.glassfish.jersey.internal.Errors.process(Errors.java:205)
    at org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:390)
    at org.glassfish.jersey.client.JerseyInvocation.invoke(JerseyInvocation.java:728)
    at org.glassfish.jersey.client.JerseyInvocation$Builder.method(JerseyInvocation.java:421)
    at org.glassfish.jersey.client.JerseyInvocation$Builder.put(JerseyInvocation.java:310)
    at copier.Main.main(Main.java:118)
Caused by: org.apache.http.client.ClientProtocolException
    at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:186)
    at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:71)
    at org.glassfish.jersey.apache.connector.ApacheConnector.apply(ApacheConnector.java:426)
    ... 10 more
Caused by: org.apache.http.ProtocolException: Content-Length header already present
    at org.apache.http.protocol.RequestContent.process(RequestContent.java:96)
    at org.apache.http.protocol.ImmutableHttpProcessor.process(ImmutableHttpProcessor.java:132)
    at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:182)
    at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:88)
    at org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:110)
    at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:184)
    ... 12 more

如何正确执行？

Answer 1

我用Apache HC替换了Jersey，

int n;
    Scanner input = new Scanner(System.in);
    while (true) {
        # Using string as user can enter anything.
        String text = input.nextLine();
        # Trimming the input to remove white-space characters.
        if (text.trim().equals("0")){
            break;
        }
    }

它具有Long contentLength = Long.parseLong(sourceResponse.getHeaders(HTTP.CONTENT_LEN)[0].getValue()); HttpPut putRequest = new HttpPut(destinationUrl); putRequest.addHeader(HEADER_X_AUTH_TOKEN, cmd.getOptionValue("dat")); InputStreamEntity entity = new InputStreamEntity(is, contentLength, ContentType.APPLICATION_OCTET_STREAM); putRequest.setEntity(entity);包装器，可以指定长度。

PS ^另外，Chunked Transfer Encoding在Apache HC中可以正常工作，但是我无法在Jersey Client中将其打开。

泽西岛HTTP客户端：放置具有自定义内容长度的请求

1 个答案: