Tomcat 8:按给定顺序启动 WebApp [英] Tomcat 8: Starting WebApps in a given order

问题描述

在 Java 8 中使用 Tomcat 8.0.15

Using Tomcat 8.0.15 with Java 8

我需要先加载某个 WebApp，所以我将以下内容放入我的 server.xml 中:

I need a certain WebApp to load first so I put the following in my server.xml:

<Host name="localhost" appBase="webapps" unpackWARs="true" autoDeploy="true" className="com.my.class.MyCustomHost">
    <Context docBase="app_to_load" path="/app_to_load"/>
</Host>

MyCustomHost 如下所示:

MyCustomHost looks like below:

public class MyCustomHost extends StandardHost {
    public MyCustomHost () {
        super();
        this.children = new LinkedHashMap();
    } }

此设置在 Tomcat 7.0.42(使用 Java 7)中有效，但在 Tomcat 8.0.15(使用 Java 8)中，我收到以下错误:

This setup worked in Tomcat 7.0.42 (with Java 7) but in Tomcat 8.0.15 (with Java 8), I get the following error:

2015 年 4 月 16 日下午 3:36:53 org.apache.tomcat.util.digester.DigesterstartElement 严重:开始事件引发错误java.lang.IllegalAccessError 在com.my.class.MyCustomHost.(MyCustomHost.java:18)

Apr 16, 2015 3:36:53 PM org.apache.tomcat.util.digester.Digester startElement SEVERE: Begin event threw error java.lang.IllegalAccessError at com.my.class.MyCustomHost.(MyCustomHost.java:18)

我尝试使用的解决方案来自此处.任何输入都会有所帮助！谢谢！

The solution I am trying to use was derived from here. Any input would help! Thanks!

推荐答案

children 是 Tomcat 8 中的 final 字段(请参阅此源代码 diff)，因此更改它是非法的.幸运的是，您可以使用这个技巧将其设置为LinkedHashMap，或者使用引用的hack(有一些小改动)使 children 成为非最终的.

children is a final field in Tomcat 8 (see this source code diff), so changing it is illegal. Fortunately, you can use this trick to set it to a LinkedHashMap, or use the referred hack (with some small changes) to make children non-final.

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