import javax.servlet.http.HttpServletRequest;

/**

 * 获取url请求前缀

 * @explain http://localhost:8080/test

 * @param request request对象

 * @return

 */

public static String getRequestPrefix (HttpServletRequest request) {

    // 网络协议

    String networkProtocol = request.getScheme();

    // 网络ip

    String ip = request.getServerName();

    // 端口号

    int port = request.getServerPort();

    // 项目发布名称

    String webApp = request.getContextPath();

    String urlPrefix = networkProtocol + "://" + ip + ":" + port + webApp;

    return urlPrefix;

}

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