我正在尝试使用 Tiles 和 REST 插件运行我的 Struts2 项目,但我无法让它工作。
我已经查看了两者的文档,我认为我做得对。这是我的文件:
web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app metadata-complete="true" version="2.5"
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_2_5.xsd">
<!-- listeners -->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<listener>
<listener-class>org.apache.struts2.tiles.StrutsTilesListener</listener-class>
</listener>
<!-- context params -->
<context-param>
<param-name>org.apache.tiles.impl.BasicTilesContainer.DEFINITIONS_CONFIG</param-name>
<param-value>/WEB-INF/tiles-tradesman.xml</param-value>
</context-param>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath*:spring-tradesman.xml</param-value>
</context-param>
<!-- filters -->
<filter>
<filter-name>struts2</filter-name>
<filter-class>org.apache.struts2.dispatcher.FilterDispatcher</filter-class>
</filter>
<!-- filter mappings -->
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
</web-app>
struts.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
"http://struts.apache.org/dtds/struts-2.0.dtd">
<struts>
<constant name="struts.devMode" value="true" />
<!-- RESTful plugin setup -->
<constant name="struts.mapper.class" value="rest" />
<constant name="struts.convention.action.suffix" value="Controller"/>
<constant name="struts.convention.action.mapAllMatches" value="true"/>
<constant name="struts.convention.default.parent.package" value="rest-default"/>
<constant name="struts.convention.package.locators" value="tp"/>
<package name="tradesman" namespace="/beta/tradesman" extends="default">
<result-types>
<result-type name="json" class="org.apache.struts2.json.JSONResult"/>
<result-type name="tiles" class="org.apache.struts2.views.tiles.TilesResult" />
</result-types>
<interceptors>
<interceptor name="json" class="org.apache.struts2.json.JSONInterceptor"/>
</interceptors>
</package>
</struts>
JobAlertsController.java
package uk.co.ratedpeople.tp;
import com.opensymphony.xwork2.ActionSupport;
import java.util.logging.Logger;
import org.apache.struts2.convention.annotation.Action;
import org.apache.struts2.convention.annotation.Result;
public class JobAlertsController extends ActionSupport {
private static final Logger LOGGER = Logger.getLogger(JobAlertsController.class.getName());
@Action(results={
@Result(name = SUCCESS, location = "tradesman.page.jobalerts", type = "tiles")
})
public String index() {
LOGGER.info("executing index action...");
LOGGER.info("leaving index action...");
return SUCCESS;
}
}
当我尝试运行该项目时,出现此错误:
SEVERE: Exception starting filter struts2
Unable to load configuration. - [unknown location]
at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:437)
at org.apache.struts2.dispatcher.FilterDispatcher.init(FilterDispatcher.java:195)
at org.apache.catalina.core.ApplicationFilterConfig.initFilter(ApplicationFilterConfig.java:273)
at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:254)
at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:372)
at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:98)
at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4542)
at org.apache.catalina.core.StandardContext$2.call(StandardContext.java:5220)
at org.apache.catalina.core.StandardContext$2.call(StandardContext.java:5215)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:619)
Caused by: Unable to load configuration. - [unknown location]
at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:69)
at org.apache.struts2.dispatcher.Dispatcher.init_PreloadConfiguration(Dispatcher.java:380)
at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:424)
... 13 more
Caused by: The Result type [tiles] which is defined in the Result annotation on the class [class uk.co.ratedpeople.tp.JobAlertsController] or determined by the file extension or is the default result type for the PackageConfig of the action, could not be found as a result-type defined for the Struts/XWork package [uk.co.ratedpeople.tp#rest-default#] - [unknown location]
at org.apache.struts2.convention.DefaultResultMapBuilder.createResultConfig(DefaultResultMapBuilder.java:427)
at org.apache.struts2.convention.DefaultResultMapBuilder.createFromAnnotations(DefaultResultMapBuilder.java:399)
at org.apache.struts2.convention.DefaultResultMapBuilder.build(DefaultResultMapBuilder.java:200)
at org.apache.struts2.convention.PackageBasedActionConfigBuilder.createActionConfig(PackageBasedActionConfigBuilder.java:864)
at org.apache.struts2.convention.PackageBasedActionConfigBuilder.buildConfiguration(PackageBasedActionConfigBuilder.java:650)
at org.apache.struts2.convention.PackageBasedActionConfigBuilder.buildActionConfigs(PackageBasedActionConfigBuilder.java:335)
at org.apache.struts2.convention.ClasspathPackageProvider.loadPackages(ClasspathPackageProvider.java:53)
at com.opensymphony.xwork2.config.impl.DefaultConfiguration.reloadContainer(DefaultConfiguration.java:215)
at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:66)
... 15 more
27-Jul-2011 17:07:07 org.apache.catalina.core.ApplicationContext log
INFO: Closing Spring root WebApplicationContext
我确信我在做一些非常愚蠢的事情,但我自己看不到。任何人?
最佳答案
首先,我建议将您的 struts 操作放在一个简单地称为 struts 的包中,在使用标准约定插件架构时,我遇到的配置问题要少得多。将您的操作移动到一个包中,例如:
uk.co.ratedpeople.struts
代替
uk.co.ratedpeople.tp;
开箱即用的配置越少,您通常情况就越好。
这也消除了对这个的需要:
<constant name="struts.convention.package.locators" value="tp"/>
其次,您的部分问题与您的 xml 配置有关:
<struts>
<constant name="struts.devMode" value="true" />
<!-- RESTful plugin setup -->
<constant name="struts.mapper.class" value="rest" />
<constant name="struts.convention.action.suffix" value="Controller"/>
<constant name="struts.convention.action.mapAllMatches" value="true"/>
<constant name="struts.convention.default.parent.package" value="rest-default"/>
<constant name="struts.convention.package.locators" value="tp"/>
<package name="tradesman" namespace="/beta/tradesman" extends="default">
<result-types>
<result-type name="json" class="org.apache.struts2.json.JSONResult"/>
<result-type name="tiles" class="org.apache.struts2.views.tiles.TilesResult" />
</result-types>
<interceptors>
<interceptor name="json" class="org.apache.struts2.json.JSONInterceptor"/>
</interceptors>
</package>
试试这样的事情(如果你按照之前的建议移动了你的 Action ):
<struts>
<constant name="struts.devMode" value="true" />
<!-- RESTful plugin setup -->
<constant name="struts.mapper.class" value="rest" />
<constant name="struts.convention.action.suffix" value="Controller"/>
<constant name="struts.convention.action.mapAllMatches" value="true"/>
<constant name="struts.convention.default.parent.package" value="tradesman"/>
<package name="tradesman" namespace="/beta/tradesman" extends="rest-default">
<result-types>
<result-type name="json" class="org.apache.struts2.json.JSONResult"/>
<result-type name="tiles" class="org.apache.struts2.views.tiles.TilesResult" />
</result-types>
</package>
</struts>
注意常量 name="struts.convention.default.parent.package"value="tradesman"它指的是它下面的包,它定义了你的结果类型并扩展了rest-default。这应该可以消除您的切片结果定义错误。
我也遇到了使用 web.xml 中的 struts 过滤器的问题,我将更改为:
<filter-class>org.apache.struts2.dispatcher.FilterDispatcher</filter-class>
到:
<filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
关于struts2 - Struts 2 Tile 和 REST 插件,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/6847667/