《尚庭公寓》 P161-根据id更新租约状态 org.springframework.core.convert.ConversionFailedException

报错信息

org.springframework.web.method.annotation.MethodArgumentTypeMismatchException: 
Failed to convert value of type 'java.lang.String' to required type 'com.atguigu.lease.model.enums.LeaseStatus'; 

Caused by: org.springframework.core.convert.ConversionFailedException: 
Failed to convert from type [java.lang.String] to type [@org.springframework.web.bind.annotation.RequestParam com.atguigu.lease.model.enums.LeaseStatus] for value '1'

原因
Spring Context未注册转换器：确保你的StringToBaseEnumConverterFactory被Spring正确扫描并注册到上下文中。
解决方法
在web-app模块的config定义StringToBaseEnumConverterFactory，再注册到WebMvcConfigurer。

//（1）定义StringToBaseEnumConverterFactory 
@Component
public class StringToBaseEnumConverterFactory implements ConverterFactory<String, BaseEnum> {
    @Override
    public <T extends BaseEnum> Converter<String, T> getConverter(Class<T> targetType) {
        return new Converter<String, T>() {
            @Override
            public T convert(String code) {
                T[] enumConstants = targetType.getEnumConstants();//拿到目标类型的全部枚举实例
                for (T enumConstant : enumConstants) {
                    if (enumConstant.getCode().equals(Integer.valueOf(code))) {
                        return enumConstant;
                    }
                }
                throw new IllegalArgumentException("非法的枚举值:" + code);
            }
        };
    }
}

//(2)注册转换器
@Configuration
public class WebMvcConfiguration implements WebMvcConfigurer { 
    @Autowired
    private StringToBaseEnumConverterFactory stringToBaseEnumConverterFactory;
    @Override
    public void addFormatters(FormatterRegistry registry) {
        registry.addConverterFactory(this.stringToBaseEnumConverterFactory);
    }
}