java.lang.IllegalStateException：连接池关闭异常 [英] java.lang.IllegalStateException: Connection pool shut down exception

问题描述

我已将代码版本从http更改为https，并且我将 HttpClient client = HttpClientFactory.getHttpsClient（）用于执行目的。当我第一次尝试运行我的代码时，它运行良好并且下一次抛出异常

I have changed my code version from http to https and I am using HttpClient client = HttpClientFactory.getHttpsClient() for execution purposes. When I am trying to run my code for the first time it is running fine and next time is throwing the exception

java.lang.IllegalStateException ：连接池关闭异常

java.lang.IllegalStateException: Connection pool shut down exception

我正在使用4.5HC。

I am using 4.5HC.

推荐答案

如果正在池化连接，请不要在请求后关闭客户端。

Do not close your client after a request if you are pooling the connections.

也就是说，您可能正在做这样的事情：

That is, you are probably doing something like this:

PoolingHttpClientConnectionManager pool = new PoolingHttpClientConnectionManager();
...
CloseableHttpClient httpclient = HttpClients.custom()
     .setConnectionManager(pool)
     .build();

try { // try-with-resources
    HttpGet httpget = new HttpGet(url.toURI());
    try (CloseableHttpResponse response = httpclient.execute(httpget);
             InputStream fis = response.getEntity().getContent();
            ReadableByteChannel channel = Channels.newChannel(fis)) {
             // ... get data ...
     } finally {
         httpclient.close(); <====== !!
     }
} catch (IOException | URISyntaxException e) {
    // exception handling ...
}

httpclient.close（）导致您的下一个池连接失败。

That httpclient.close() is causing your next pooled connection to fail.

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