添加一个Exception类型，发生该Exception时WEB画面跳转到指定画面

1.customizer.dicon

  <component name="actionCustomizer" class="org.seasar.framework.container.customizer.CustomizerChain">
  </component>

里面追加一下内容

    <initMethod name="addAspectCustomizer">
      <arg>"throwableTransitionInterceptor"</arg>
    </initMethod>

2.ThrowableTransitionInterceptor（自己写的类继承ThrowsInterceptor）类中追加

    public void handleThrowable(TestException e, MethodInvocation invocation) throws Throwable {

        throw e;

    }

3.定义自定Exception  -->>TestException继承RuntimeException类

4.struts-config.xml

    <global-exceptions>    </global-exceptions>

里面追加

      <exception type="framework.ss.exception.runtime.TestException" 
          path="/WEB-INF/view/exception/testException.html" key=""/>