-->--显示引用默认的拦截器-->
---->
--引用自定义的拦截器栈-->
ViewCode
LoginAction.java
packageinterceptor;
importjava.util.Map;
importcom.opensymphony.xwork2.ActionContext;
importcom.opensymphony.xwork2.ActionSupport;
/**
*@ClassName:
LoginAction
*@Description:
用户登录
*@author:
amosli
*@email:
amosli@
*@dateJan17,201412:
11:
35AM
*/
publicclassLoginActionextendsActionSupport{
privatestaticfinallongserialVersionUID=3514444221760688282L;
privateStringusername;
publicvoidsetUsername（Stringusername）{
this.username=username;
}
publicStringloginMethod（）{
//取得HTPPSession
Mapsession=ActionContext.getContext（）.getSession（）;
session.put（"username",username）;
returnSUCCESS;
}
}
ViewCode
LoginInterceptor.java
packageinterceptor;
importjava.util.Map;
importaction.UploadAction;
importcom.opensymphony.xwork2.ActionContext;
importcom.opensymphony.xwork2.ActionInvocation;
importcom.opensymphony.xwork2.interceptor.Interceptor;
/**
*@ClassName:
LoginInterceptor
*@Description:
登录拦截器
*@author:
amosli
*@email:
amosli@
*@dateJan17,201411:
42:
54PM
*/
publicclassLoginInterceptorimplementsInterceptor{
privatestaticfinallongserialVersionUID=8314579656513662711L;
publicLoginInterceptor（）{
System.out.println（"LoginInterceptor（）:
"+this.hashCode（））;
}
publicvoiddestroy（）{
System.out.println（"destroy（）"）;
}
publicvoidinit（）{
System.out.println（"init（）"）;
}
publicStringintercept（ActionInvocationinvocation）throwsException{
System.out.println（"LoginInterceptor"）;
////获取此拦截器将要拦截的action
//Objectaction=invocation.getAction（）;
//System.out.println（"action:
"+action）;//action:
action.UploadAction@6522cf92
////获取action的返回值
//StringresultValue=invocation.invoke（）;
//System.out.println（"resultValue:
"+resultValue）;//resultValue:
success
//如果拦截器将要拦截的action为UploadAction，那么判断用户是否已经登录
if（invocation.getAction（）instanceofUploadAction）{
Mapsession=ActionContext.getContext（）.getSession（）;
if（session.get（"username"）!
=null）{//判断用户是否已经登录
//如果返回值为"success"那么将会匹配到配置文件中为result属性为"success"的内容。
//如果返回值为invocation.invoke（）,那么将会执行uploadaction方法
returninvocation.invoke（）;
}else{
return"toLoginJsp";
}
}
returnnull;
}
}
ViewCode
UploadAction.java
packageaction;
importjava.io.File;
importjava.io.FileInputStream;
importjava.io.FileOutputStream;
importjava.io.InputStream;
importjava.io.OutputStream;
importcom.opensymphony.xwork2.ActionSupport;
/**
*@ClassName:
UploadAction
*@Description:
文件上传
*@author:
amosli
*@email:
amosli@
*@dateJan14,20141:
50:
28AM
*/
publicclassUploadActionextendsActionSupport{
privatestaticfinallongserialVersionUID=-8920466592471253212L;
privateStringusername;//用户名
privateString[]uploadContentType;//上传文件的类型,（Fileupload拦截器传入的参数）
privateFile[]upload;//上传的文件,（Fileupload拦截器传入的参数）
privateString[]uploadFileName;//上传文件的真实文件名，（Fileupload拦截器传入的参数）
privateStringuploadPath;
publicvoidsetUploadPath（StringuploadPath）{
this.uploadPath=uploadPath;
}
publicvoidsetUsername（Stringusername）{
this.username=username;
}
publicString[]getUploadContentType（）{
returnuploadContentType;
}
publicvoidsetUploadContentType（String[]uploadContentType）{
this.uploadContentType=uploadContentType;
}
publicFile[]getUpload（）{
returnupload;
}
publicvoidsetUpload（File[]upload）{
this.upload=upload;
}
publicString[]getUploadFileName（）{
returnuploadFileName;
}
publicvoidsetUploadFileName（String[]uploadFileName）{
this.uploadFileName=uploadFileName;
}
publicStringgetUsername（）{
returnusername;
}
publicStringuploadMethod（）throwsException{
//ServletContextcontext=ServletAction
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