HttpClient connectionRequestTimeout、connectTimeout、socketTimeout

目录

1.比较

2.使用

3.参考

1.比较

HttpClient   connectionRequestTimeout、connectTimeout、socketTimeout 三个参数对比：

connectionRequestTimeout：等待从连接管理器、连接池获取连接的时间。HttpClient维护一个连接池来管理连接，类似于数据库连接池)，单位毫秒

connectTimeout：与远程主机、服务器建立连接的最长时间，单位毫秒

socketTimeout：当数据从服务器传输到客户端时，两个连续数据包之间的最大时间间隔，单位毫秒

 /**
     * Returns the timeout in milliseconds used when requesting a connection
     * from the connection manager.
     * <p>
     * A timeout value of zero is interpreted as an infinite timeout.
     * A negative value is interpreted as undefined (system default if applicable).
     * </p>
     * <p>
     * Default: {@code -1}
     * </p>
     */
    public int getConnectionRequestTimeout() {
        return connectionRequestTimeout;
    }

    /**
     * Determines the timeout in milliseconds until a connection is established.
     * <p>
     * A timeout value of zero is interpreted as an infinite timeout.
     * A negative value is interpreted as undefined (system default if applicable).
     * </p>
     * <p>
     * Default: {@code -1}
     * </p>
     */
    public int getConnectTimeout() {
        return connectTimeout;
    }

    /**
     * Defines the socket timeout ({@code SO_TIMEOUT}) in milliseconds,
     * which is the timeout for waiting for data or, put differently,
     * a maximum period inactivity between two consecutive data packets).
     * <p>
     * A timeout value of zero is interpreted as an infinite timeout.
     * A negative value is interpreted as undefined (system default if applicable).
     * </p>
     * <p>
     * Default: {@code -1}
     * </p>
     */
    public int getSocketTimeout() {
        return socketTimeout;
    }

2.使用

 HttpPost httpPost = new HttpPost("URL");

RequestConfig requestConfig =RequestConfig.custom()
.setConnectTimeout(connectTimeout)
.setConnectionRequestTimeout(connectionRequestTimeout)
.setSocketTimeout(socketTimeout).build();

httpPost.setConfig(config);

3.参考

源码：httpcomponents-client/RequestConfig.java at 4.5.x · apache/httpcomponents-client · GitHub

httpcomponents-website/QuickStart.java at master · apache/httpcomponents-website · GitHub

其他：

HttpClient 4.3.5 ConnectionRequestTimeOut vs ConnectTimeout for HttpConnectionParams.setConnectionTimeout in 4.0.1 - Stack Overflow

https://blog.csdn.net/du771278794/article/details/83008867

https://blog.csdn.net/russle/article/details/126064154

https://blog.csdn.net/ttyy1112/article/details/108711476
 

https://www.freesion.com/article/3275472895/