1.介绍

• @Configuration启动容器
• @Bean注册Bean
• 缺点：无法注入异常信息到页面

2.实现

@Configuration
public class GlobalException1 {
    @Bean
    public SimpleMappingExceptionResolver getSimpleMappingExceptionResolver(){
        SimpleMappingExceptionResolver mappings=new SimpleMappingExceptionResolver();
        Properties pro=new Properties();
        pro.put("java.lang.ArithmeticException", "ArithmeticExceptionPage");
        pro.put("java.lang.NullPointerException", "NullPointerExceptionPage");
        mappings.setExceptionMappings(pro);
        return mappings;
    }