问题描述:

在使用HttpClientUtil发送GET请求时,出现了Read timed out executing GET的错误。

解决办法:

  1. 增加请求超时时间

可通过设置setConnectTimeout和setSocketTimeout两个参数来增加请求超时时间,例如:

CloseableHttpClient httpClient = HttpClients.createDefault();
RequestConfig requestConfig = RequestConfig.custom()
        .setConnectTimeout(5000) // 设置连接超时时间
        .setSocketTimeout(5000) // 设置读取超时时间
        .build();
HttpGet httpGet = new HttpGet(url);
httpGet.setConfig(requestConfig);
CloseableHttpResponse response = httpClient.execute(httpGet);
  1. 禁用重试机制

HttpClient默认会进行重试,可以通过设置重试次数为0来禁用重试机制,例如:

CloseableHttpClient httpClient = HttpClients.custom()
        .setRetryHandler(new DefaultHttpRequestRetryHandler(0, false)) // 禁用重试机制
        .build();
HttpGet httpGet = new HttpGet(url);
CloseableHttpResponse response = httpClient.execute(httpGet);
  1. 增加连接池

可以通过增加连接池来提高请求的效率和稳定性,例如:

PoolingHttpClientConnectionManager connectionManager = new PoolingHttpClientConnectionManager();
connectionManager.setMaxTotal(100); // 设置最大连接数
connectionManager.setDefaultMaxPerRoute(20); // 设置每个路由的最大连接数
CloseableHttpClient httpClient = HttpClients.custom()
        .setConnectionManager(connectionManager) // 设置连接池
        .build();
HttpGet httpGet = new HttpGet(url);
CloseableHttpResponse response = httpClient.execute(httpGet);

总结:

以上是解决HttpClientUtil Read timed out executing GET错误的三种方法,可以根据自己的需求选择相应的解决方案。同时,建议在使用HttpClient发送请求时,根据具体情况设置合适的超时时间和连接池大小,以保证请求的稳定性和效率

java HttpClientUtil Read timed out executing GET解决办法

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