Apache HttpClient 4.5.13 java.net.SocketException：管道损坏写入失败

如何解决Apache HttpClient 4.5.13 java.net.SocketException：管道损坏写入失败

我有一个 Java 8 Http 客户端应用程序，该应用程序与服务器通信，该应用程序在某些情况下会拒绝请求（例如，无效或缺少 Authorization 标头，负载大于 1MB）。当请求被拒绝时，我会在使用 cURL 时看到预期的 HTTP 响应代码（例如 401 Unauthorized、403 Forbidden、413 Payload Too Large）。但是，在使用 Apache HttpClient 时，我得到了一个 java.net.SocketException: Broken pipe (Write failed)。我相信当客户端想要写入请求正文但服务器已经关闭连接而没有完全读取请求正文时会发生这种情况。

理想情况下，我想获得服务器的响应，以便我可以处理“真正的”错误（例如，通知用户他们的请求太大，或者让他们知道他们的会话不再有效）。如果没有来自服务器的响应，我将不得不假设这是一个网络错误并重试。有什么办法可以优雅地处理 java.net.SocketException: Broken pipe (Write failed) 异常并仍然读取服务器响应？

示例 cURL 请求

$> printf 'x%.0s' {1..1048577} | curl -i --data @- https://my.server.com/anything
HTTP/1.1 100 Continue

HTTP/1.1 413 Request Entity Too Large
Content-Type: application/json
X-Frame-Options: DENY
Content-Length: 92
Connection: Close

示例代码

import org.apache.http.HttpResponse;
import org.apache.http.client.entity.EntityBuilder;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;

public class Main {

    public final static void main(String[] args) throws Exception {
        CloseableHttpClient client = HttpClients.createDefault();
        try {
            HttpPost request = new HttpPost("https://my.server.com/anything");
            String largePayload = new String(new char[1024*1024+1]).replace('\0','x'); // >1MB
            request.setEntity(EntityBuilder.create().setText(largePayload).build());
            HttpResponse response = client.execute(request);
            System.out.println(response.getStatusLine());
        } finally {
            client.close();
        }
    }

}

完整堆栈跟踪

Exception in thread "main" java.net.SocketException: Broken pipe (Write failed)
    at java.net.SocketOutputStream.socketWrite0(Native Method)
    at java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:111)
    at java.net.SocketOutputStream.write(SocketOutputStream.java:155)
    at sun.security.ssl.OutputRecord.writeBuffer(OutputRecord.java:431)
    at sun.security.ssl.OutputRecord.write(OutputRecord.java:417)
    at sun.security.ssl.SSLSocketImpl.writeRecordInternal(SSLSocketImpl.java:886)
    at sun.security.ssl.SSLSocketImpl.writeRecord(SSLSocketImpl.java:857)
    at sun.security.ssl.AppOutputStream.write(AppOutputStream.java:123)
    at org.apache.http.impl.conn.LoggingOutputStream.write(LoggingOutputStream.java:74)
    at org.apache.http.impl.io.SessionOutputBufferImpl.streamWrite(SessionOutputBufferImpl.java:124)
    at org.apache.http.impl.io.SessionOutputBufferImpl.write(SessionOutputBufferImpl.java:160)
    at org.apache.http.impl.io.ContentLengthOutputStream.write(ContentLengthOutputStream.java:113)
    at org.apache.http.impl.io.ContentLengthOutputStream.write(ContentLengthOutputStream.java:120)
    at org.apache.http.entity.StringEntity.writeTo(StringEntity.java:167)
    at org.apache.http.impl.DefaultBHttpClientConnection.sendRequestEntity(DefaultBHttpClientConnection.java:156)
    at org.apache.http.impl.conn.CPoolProxy.sendRequestEntity(CPoolProxy.java:152)
    at org.apache.http.protocol.HttpRequestExecutor.doSendRequest(HttpRequestExecutor.java:238)
    at org.apache.http.protocol.HttpRequestExecutor.execute(HttpRequestExecutor.java:123)
    at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:272)
    at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:186)
    at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:89)
    at org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:110)
    at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:185)
    at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:83)
    at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:108)
    at Main.main(main.java:15)

解决方法

我遇到了类似的问题，我修复了它，包括对 httpClient 的以下配置

RequestConfig requestConfig = RequestConfig.custom()
            .setExpectContinueEnabled(true).build();
HttpClientBuilder clientBuilder = HttpClientBuilder.create()
            .setDefaultRequestConfig(requestConfig);
CloseableHttpClient httpClient = clientBuilder.build();

在下一个链接中，您可以找到执行此操作的说明http://httpcomponents.10934.n7.nabble.com/Broken-pipe-Write-failed-when-making-Unauthorized-request-td34235.html。