小编Pet*_*ris的帖子

我正在解析一个巨大的 xml 文件，其中包含许多空元素，例如

<MemoryEnv></MemoryEnv>

序列化时

etree.tostring(root_element, pretty_print=True)

输出元素折叠为

<MemoryEnv/>

有什么办法可以防止这种情况吗？在etree.tostring()不提供这样的设施。

有没有办法干扰 lxml 的tostring()序列化程序？

顺便说一句，该html模块不起作用。它不是为 XML 设计的，也不会以原始形式创建空元素。

问题是，尽管空元素的折叠和未折叠形式是等效的，但解析此文件的程序无法处理折叠的空元素。

我试图了解以下弹性搜索设置的工作原理：

search.default_search_timeout

I tried to configure this value on a cluster but I couldn't actually limit down to a desired level the time a query takes. The timeout occurs and a query gets stopped but still lasts longer than expected. It seems that there is some relation of default_search_timeout value to the actual occurring timeout but it doesn't feel like a linear relation, or anyway I don't understand how it works. I got 2m lasting queries for a 15s default_search_timeout …

我正在尝试设置一个使用的 Web 应用程序

1. 弹簧 3.2.x
2. 春季安全 3.x
3. 气氛 2.x

我开始使用这个例子SpringMVC-Atmosphere-Example。

使用这个 web.xml 配置：

<?xml version="1.0" encoding="UTF-8"?>

<web-app version="3.0" id="WebApp_ID" metadata-complete="true" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd">

<display-name>Example Project</display-name>

<filter>
    <filter-name>springSecurityFilterChain</filter-name>
    <filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>
    <async-supported>true</async-supported>
</filter>

<filter-mapping>
    <filter-name>springSecurityFilterChain</filter-name>
    <url-pattern>/*</url-pattern>
</filter-mapping>

<servlet>
    <servlet-name>gui-dispatcher</servlet-name>
    <servlet-class>org.atmosphere.cpr.MeteorServlet</servlet-class>
    <async-supported>true</async-supported>

    <init-param>
        <param-name>org.atmosphere.servlet</param-name>
        <param-value>org.springframework.web.servlet.DispatcherServlet</param-value>
    </init-param>

    <init-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>/WEB-INF/spring-context.xml</param-value>
    </init-param>

    <init-param>
        <param-name>org.atmosphere.cpr.broadcasterClass</param-name>
        <param-value>org.atmosphere.cpr.DefaultBroadcaster</param-value>
    </init-param>

    <init-param>
        <param-name>org.atmosphere.cpr.broadcaster.shareableThreadPool</param-name>
        <param-value>true</param-value>
    </init-param>

    <init-param>
        <param-name>org.atmosphere.useNative</param-name>
        <param-value>true</param-value>
    </init-param>

    <init-param>
        <param-name>org.atmosphere.useWebSocket</param-name>
        <param-value>true</param-value>
    </init-param>

    <init-param>
        <param-name>org.atmosphere.useStream</param-name>
        <param-value>true</param-value>
    </init-param>

    <load-on-startup>1</load-on-startup>
</servlet>

<servlet-mapping>
    <servlet-name>gui-dispatcher</servlet-name>
    <url-pattern>/main/*</url-pattern>
</servlet-mapping>

<context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>
        /WEB-INF/security/spring-security.xml
        /WEB-INF/spring-context.xml …