Topic - struts 2.3 升级到 2.5.30后过滤器超时问题解决

struts 2.3 升级到 2.5.30后过滤器超时报错：
Connection timed out: connect - [unknown location]
    com.opensymphony.xwork2.util.DomHelper.parse(DomHelper.java:120)
    com.opensymphony.xwork2.validator.DefaultValidatorFileParser.parseActionValidatorConfigs(DefaultValidatorFileParser.java:84)
    com.opensymphony.xwork2.validator.AnnotationActionValidatorManager.loadFile(AnnotationActionValidatorManager.java:380)
    com.opensymphony.xwork2.validator.AnnotationActionValidatorManager.buildClassValidatorConfigs(AnnotationActionValidatorManager.java:269)
    com.opensymphony.xwork2.validator.AnnotationActionValidatorManager.buildValidatorConfigs(AnnotationActionValidatorManager.java:361)
    com.opensymphony.xwork2.validator.AnnotationActionValidatorManager.getValidators(AnnotationActionValidatorManager.java:97)
    com.opensymphony.xwork2.validator.AnnotationActionValidatorManager.validate(AnnotationActionValidatorManager.java:136)
    com.opensymphony.xwork2.validator.AnnotationActionValidatorManager.validate(AnnotationActionValidatorManager.java:128)
    com.opensymphony.xwork2.validator.AnnotationActionValidatorManager.validate(AnnotationActionValidatorManager.java:123)

- 问题原因：validation.xml文件头需要修改
```xml
	<!DOCTYPE validators PUBLIC "-//OpenSymphony Group//XWork Validator 1.0.2//EN" 
		"http://www.opensymphony.com/xwork/xwork-validator-1.0.2.dtd">
```
变更为：
```xml
	<!DOCTYPE validators PUBLIC "-//Apache Struts//XWork Validator 1.0.2//EN"
     "http://struts.apache.org/dtds/xwork-validator-1.0.2.dtd"> 
```

#		=
	南柯	2023
	cxlove	1970
	vainner	1763
4	1000310428赵成帅	1718
5	XiaoWen	1710
6	1000380213洪伟焕	1701
7	weiben	1684
8	Jungle.Wei	1678
9	1100310131曾翔宇	1664
10	hongwh	1653

2023

1970

1763

1718

1710

1701

weiben

1684

Jungle.Wei

1678

1100310131曾翔宇

1664

hongwh

1653