SpringJava:拦截器sendRedirect循环
我实现了一个拦截器,它执行某些检查并发送重定向到某个页面。目前我正在测试它,没有任何条件,只要在调用preHandle时发送重定向即可。这是我的实现:SpringJava:拦截器sendRedirect循环,java,spring,spring-mvc,Java,Spring,Spring Mvc,我实现了一个拦截器,它执行某些检查并发送重定向到某个页面。目前我正在测试它,没有任何条件,只要在调用preHandle时发送重定向即可。这是我的实现: class HttpInterceptorMgr implements HandlerInterceptor { public boolean preHandle(HttpServleRequest aRequest, HttpServletResponse aResponse, Object aHandler) { try {
class HttpInterceptorMgr implements HandlerInterceptor {
public boolean preHandle(HttpServleRequest aRequest, HttpServletResponse aResponse, Object aHandler) {
try {
sendRedirect("/somepage");
return false;
}
catch(Exceptio n e) {
// Do something else
}
}
}
web.xml
<servlet-mapping>
<servlet-name>myproject</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
....
<filter>
<filter-name>springSecurityFilterChain</filter-name>
<filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>
</filter>
<filter-mapping>
<filter-name>springSecurityFilterChain</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
...
myproject-web-servlet.xml
<mvc:annotation-driven />
<mvc:resources mapping="/resources/**" location="/resources/" />
<mvc:resources mapping="/js/**" location="/js/" />
<mvc:resources mapping="/css/**" location="/css/" />
<mvc:resources mapping="/images/**" location="/images/" />
<mvc:interceptors>
<bean class="org.mycompany.HttpInterceptorMgr" />
</mvc:interceptors>
applicationContextSecurityBeans.xml
<security:http auto-config="true" use-expression="true" access-denied-page="/user/denied">
<security:form-login
login-page="/login"
authentication-failure-url="login?error=true"
default-target-url="/homepage" />
<security:logout invalidate-session="true"
logout-success-url="/login"
logout-url="/j_sring_security_logout" />
</security:http>
我面临的问题是,我的页面在循环中被重定向。在firefox浏览器上,它说页面没有正确重定向。我跟踪catalina.out,它显示它多次输入prehandle,其request.getRequestUrl为/somepage。但是我无法成功到达该页面。发生的情况是,您的拦截器没有条件,即使重定向请求到/somepage,它也会再次发送重定向,这将在循环中通过 您可以检查请求是否指向/somepage,如果是,则不应再次重定向
class HttpInterceptorMgr implements HandlerInterceptor {
public boolean preHandle(HttpServleRequest aRequest, HttpServletResponse aResponse, Object aHandler) {
try {
if(!aRequest.getRequestURL().toString().endswith("/somepage")) {
sendRedirect("/somepage");
return false;
}
}
catch(Exceptio n e) {
// Do something else
}
return true;
}
}
嗨,shazin,谢谢你的快速回复。好的,我试过你的方法,现在我得到了一个空白的白页。