Struts2默认拦截器解析.pdf

Struts2 默认拦截器解析

使用 struts2，拦截器大家经常使用， 当然默认情况我们除了自定义的拦截器外， 会使用 struts2

默认的拦截器， 那他究竟有哪些默认的拦截器？每个拦截器都是做什么的呢？我们来看下对

应的源码，打开对应源码下的 struts2-default.xml 文件

我们可以看到对应很多的拦截器信息，如下

拦截器信息：

<interceptors >

<interceptor name ="alias"

class ="com.opensymphony.xwork2.interceptor.AliasInterceptor" />

class ="org.apache.struts2.interceptor.StrutsConversionErrorIntercepto

r" />

<interceptor name ="cookie"

class ="org.apache.struts2.interceptor.CookieInterceptor" />

<interceptor name ="createSession"

class ="org.apache.struts2.interceptor.CreateSessionInterceptor" />

<interceptor name ="debugging"

class ="org.apache.struts2.interceptor.debugging.DebuggingInterceptor"

/>

<interceptor name ="externalRef"

<interceptor name ="exception"

<interceptor name ="fileUpload"

class ="org.apache.struts2.interceptor.FileUploadInterceptor" />

<interceptor name ="i18n"

class ="com.opensymphony.xwork2.interceptor.I18nInterceptor" />

<interceptor name ="logger"

class ="com.opensymphony.xwork2.interceptor.LoggingInterceptor" />

<interceptor name ="modelDriven"

class ="com.opensymphony.xwork2.interceptor.ModelDrivenInterceptor" />

<interceptor name ="scopedModelDriven"

class ="com.opensymphony.xwork2.interceptor.ScopedModelDrivenIntercept

class ="com.opensymphony.xwork2.interceptor.StaticParametersIntercepto

r" />

<interceptor name ="scope"

class ="org.apache.struts2.interceptor.ScopeInterceptor" />

<interceptor name ="servletConfig"

class ="org.apache.struts2.interceptor.ServletConfigInterceptor" />

<interceptor name ="sessionAutowiring"

class ="org.apache.struts2.spring.interceptor.SessionContextAutowiring

Interceptor" />

<interceptor name ="timer"

class ="com.opensymphony.xwork2.interceptor.TimerInterceptor" />

Interceptor" />

<interceptor name ="workflow"

class ="com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor

" />

<interceptor name ="store"

<interceptor name ="profiling"

/>

<interceptor name ="roles"

class ="org.apache.struts2.interceptor.RolesInterceptor" />

<!-- Deprecated name forms scheduled for removal in Struts 2.1.0. The

camelCase versions are preferred. See ww-1707 -->

<interceptor name ="external-ref"

class ="com.opensymphony.xwork2.interceptor.ExternalReferencesIntercep

<interceptor name ="scoped-model-driven"

class ="com.opensymphony.xwork2.interceptor.ScopedModelDrivenIntercept

or" />

<interceptor name ="servlet-config"

class ="org.apache.struts2.interceptor.ServletConfigInterceptor" />

<interceptor name ="token-session"

class ="org.apache.struts2.interceptor.TokenSessionStoreInterceptor" />

拦截器栈信息：

<!-- Basic stack -->

<interceptor-stack name ="basicStack" >

</ interceptor-stack >

<!-- Sample validation and workflow stack -->

<interceptor-stack name ="validationWorkflowStack" >

<interceptor-ref name ="basicStack" />

<interceptor-ref name ="validation" />

<interceptor-ref name ="workflow" />

</ interceptor-stack >

<!-- Sample file upload stack -->