SpringBoot中集成Shiro的时候， 配置setUnauthorizedUrl("/403")了，但是不起作用，只会在控制台打印UnauthorizedException异常信息：
原因：
Shiro源码中是这样做的：
private void applyUnauthorizedUrlIfNecessary(Filter filter) {
String unauthorizedUrl = this.getUnauthorizedUrl();
if(StringUtils.hasText(unauthorizedUrl) && filter instanceof AuthorizationFilter) {
AuthorizationFilter authzFilter = (AuthorizationFilter)filter;
String existingUnauthorizedUrl = authzFilter.getUnauthorizedUrl();
if(existingUnauthorizedUrl == null) {
authzFilter.setUnauthorizedUrl(unauthorizedUrl);
}
}
}
只有perms，roles，ssl，rest，port才是属于AuthorizationFilter，而anon，authcBasic，authc，user是AuthenticationFilter，所以unauthorizedUrl设置后不起作用，只会在控制台打印异常信息。
接下来，我们需要做一些配置，自己来处理UnauthorizedException异常：
1.第一种方式
@Configuration
public class ExceptionConf {
@Bean
public SimpleMappingExceptionResolver resolver() {
SimpleMappingExceptionResolver resolver = new SimpleMappingExceptionResolver();
Properties properties = new Properties();
properties.setProperty("org.apache.shiro.authz.UnauthorizedException", "/403");
resolver.setExceptionMappings(properties);
return resolver;
}
}
当然，还有其他的方法可以自己处理。
比如：
2.用spring mvc的统一异常处理类HandlerExceptionResolver
定义一个类继承HandlerExceptionResolver，然后判断UnauthorizedException异常即可。
public class MyExceptionResolver implements HandlerExceptionResolver {
@Override
public ModelAndView resolveException(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o, Exception e) {
if (e instanceof UnauthorizedException) {
ModelAndView mv = new ModelAndView("/403");
return mv;
}
return null;
}
}
然后，在启动类中注册该bean
@SpringBootApplication
public class DemoApplication {
public static void main(String[] args) {
SpringApplication.run(DemoApplication.class, args);
}
// 注册统一异常处理bean
@Bean
public MyExceptionResolver myExceptionResolver() {
return new MyExceptionResolver();
}
}
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