另一个 spring 拦截器
importjavax.servlet.http.HttpServletRequest;
importjavax.servlet.http.HttpServletResponse;
importorg.apache.log4j.Logger;
importorg.springframework.web.servlet.handler.HandlerInterceptorAdapter;
importcom.test.entity.Employee;
/**
*Spring拦截器
*
*@authorjhwen
*
*/
publicclassSessionInterceptorextendsHandlerInterceptorAdapter{
privatefinalLoggerlogger=Logger.getLogger(SessionInterceptor.class);
/**
*在业务处理器处理请求之前被调用
*/
publicbooleanpreHandle(HttpServletRequestrequest,HttpServletResponseresponse,
Objecthandler)throwsException{
//要排除拦截的请求
String[]ignoreRegexs=newString[]{"login.do","checkCode.do"};
//获取客户端请求URI
StringrequestURI=request.getRequestURI();
//获取客户端请求
if(null!=requestURI&&!"".equals(requestURI)){
//不同的工程,substring(intparamInt1,intparamInt2)的paramInt1不同
requestURI=requestURI.substring(8,requestURI.length());
}
for(inti=0;i<ignoreRegexs.length;i++){
StringignoreRegex=ignoreRegexs[i];
/**
*如果是login.do和checkCode.do,则不做拦截
*/
if(ignoreRegex.equals(requestURI)){
returntrue;
}
}
/**
*如果不是login.do(登录)和checkCode.do(检验验证码),则做拦截,
*并且,判断是否已经登录
*/
Employeeemp=(Employee)request.getSession().getAttribute("emp");
/**
*如果未登录,则不允许操作;
*如果已经登录,则允许做其他的操作.
*/
if(null==emp){
returnfalse;
}else{
returntrue;
}
}
}
Spring的核心配置文件applicationContext.xml:
<beanclass="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping">
<propertyname="interceptors">
<list>
<beanclass="com.test.common.core.interceptor.SessionInterceptor"/>
</list>
</property>
</bean>