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Java-Apache-HttpClient

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1 Maven依赖

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<dependency>
    <groupId>org.apache.httpcomponents</groupId>
    <artifactId>httpclient</artifactId>
    <version>4.5.5</version>
</dependency>

2 重试机制

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private static final HttpClient HTTP_CLIENT = HttpClientBuilder.create()
        .setRetryHandler((IOException exception, int executionCount, HttpContext context) -> {
            if (executionCount > 3) {
                return false;
            }
            return exception instanceof NoHttpResponseException || exception instanceof ConnectTimeoutException;
        })
        .build();

3 超时设置

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HttpRequestBase request = new HttpGet();

RequestConfig config = RequestConfig.custom()
        .setConnectTimeout(3000).setConnectionRequestTimeout(1000)
        .setSocketTimeout(5000).build();

request.setConfig(config);

4 参考