【SpringBoot重写配置的方法】

• 不用@EnableWebMvc注解,使用 @Configuration + WebMvcConfigurer 自定义规则
• • 方法一：实现WebMvcConfigurer接口
  • 方法二：容器中放一个WebMvcConfigurer
• 重写addFormatters配置函数

自定义一个配置类实现接口WebMvcConfigurer
jdk8有接口的默认实现，我们只需要重写我们想重写的方法即可。

@Configuration(proxyBeanMethods = false)
public class MyConfig implements WebMvcConfigurer{
    //@Bean
    @Override
    public void configurePathMatch(PathMatchConfigurer configurer) {
        //UrlPathHelper
        UrlPathHelper urlPathHelper = new UrlPathHelper();
        //不移除分号后面的内容，矩阵变量功能才能生效
        urlPathHelper.setRemoveSemicolonContent(false);
        configurer.setUrlPathHelper(urlPathHelper);
    }
}

@Configuration(proxyBeanMethods = false)
public class MyConfig{
    @Bean
    public WebMvcConfigurer webMvcConfigurer(){
        return new WebMvcConfigurer() {
            @Override
            public void configurePathMatch(PathMatchConfigurer configurer) {
                UrlPathHelper urlPathHelper = new UrlPathHelper();
                urlPathHelper.setRemoveSemicolonContent(false);
                configurer.setUrlPathHelper(urlPathHelper);
            }
        };
    }
}

    @Override
    public void addFormatters(FormatterRegistry registry) {
        registry.addConverter(new Converter() {
            @Override
            public Pet convert(String source) {
                if(StringUtils.hasText(source)){
                    Pet pet = new Pet();
                    String[] split = source.split(",");
                    pet.setName(split[0]);
                    pet.setAge(split[1]);
                    return pet;
                }
                return null;
            }
        });
    }