java - 改进 GoogleAppEngine Spring Web 应用程序启动时间

Question

我有一个在 GAE 中运行的 Java Web 应用程序。我使用 Spring 进行 servlet 调度。我使用它以便我可以使用注释来定义我的 servlet 中的调用，以便它完成所有参数解析和结果转换。 GAE 中 Web 应用程序的加载时间约为 10 秒，我想知道是否有办法缩短它。谢谢。

这是我的 web.xml

<?xml version="1.0" encoding="utf-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" version="2.5">


<servlet>
    <servlet-name>mvc-dispatcher</servlet-name>
    <servlet-class>
                org.springframework.web.servlet.DispatcherServlet
            </servlet-class>
    <load-on-startup>1</load-on-startup>
</servlet>
<servlet>
    <servlet-name>publisher-servlet</servlet-name>
    <servlet-class>
                com.example.webapp.PublisherServlet
            </servlet-class>
</servlet>

<servlet-mapping>
    <servlet-name>mvc-dispatcher</servlet-name>
    <url-pattern>/</url-pattern>
</servlet-mapping>
<servlet-mapping>
    <servlet-name>publisher-servlet</servlet-name>
    <url-pattern>/publisher</url-pattern>
</servlet-mapping>

<context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>/WEB-INF/mvc-dispatcher-servlet.xml</param-value>
</context-param>

<context-param>
    <param-name>contextClass</param-name>
    <param-value>com.example.webapp.CustomXmlWebApplicationContext</param-value>
</context-param>

和我的 mvc-dispatcher-servlet.xml

<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:util="http://www.springframework.org/schema/util" xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="
    http://www.springframework.org/schema/beans     
    http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
    http://www.springframework.org/schema/mvc
    http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd">

<mvc:annotation-driven />

<bean class="com.y2apps.quoteformessenger.webapp.ClientController">
</bean>

这是启动服务器的第一次调用的服务器日志

I 2015-10-13 14:19:54.937  200 119.69 KB 10.98 s I 14:19:59.222 I 14:20:05.916 /getallcategorylists?typeId=2
             84.229.82.245 - - [13/Oct/2015:04:19:54 -0700] "GET /getallcategorylists?typeId=2 HTTP/1.1" 200 122562 - "okhttp/2.2.0" "iron-core-93812.appspot.com" ms=10978 cpu_ms=13017 cpm_usd=0.01369737 instance=00c61b117c057f572d9967e34ef8e65bb7cbfdcd app_engine_release=1.9.27 trace_id=-
I 14:19:59.222 javax.servlet.ServletContext log: Initializing Spring FrameworkServlet 'mvc-dispatcher'
I 14:20:05.916 This request caused a new process to be started for your application, and thus caused your application code to be loaded for the first time. This request may thus take longer and use more CPU than a typical request for your application.

Answer 1

我尝试了所有方法，但无法缩短 10 秒的启动时间。我认为这对我来说太重要了，所以我从我的服务器中删除了 spring，并将启动时间从 10 秒减少到 4-5 秒。