Spring Boot 实现敏感词及特殊字符过滤处理

@ControllerAdvice(basePackages = "com.my") 

/**
 * @author Ryan
 * @date 2019/4/25 18:41
 */
@ControllerAdvice(basePackages = "com.ytkj")
public class EscapeSensitiveWordFilter implements RequestBodyAdvice {
    @Override
    public boolean supports(MethodParameter methodParameter, Type type, Class<? extends HttpMessageConverter<?>> aClass) {
        return true;
    }
    @Override
    public HttpInputMessage beforeBodyRead(HttpInputMessage inputMessage, MethodParameter parameter, Type targetType, Class<? extends HttpMessageConverter<?>> converterType) throws IOException {
        return inputMessage;
    }
    @Override
    public Object afterBodyRead(Object o, HttpInputMessage httpInputMessage, MethodParameter methodParameter, Type type, Class<? extends HttpMessageConverter<?>> aClass) {
        if(o != null){
            SensitiveWordUtils.apply(o);
        }
        return o;
    }
    @Override
    public Object handleEmptyBody(Object o, HttpInputMessage httpInputMessage, MethodParameter methodParameter, Type type, Class<? extends HttpMessageConverter<?>> aClass) {
        return o;
    }
}

import java.lang.reflect.Field;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Map;
/**
 * @author Ryan
 * @date 2019/4/26 12:40
 */
public class SensitiveWordUtils {
    /**
     * @param result
     * @return
     */
    public static Object apply(Object result) {
        if (result == null) {
            return null;
        }
        objectParse(result);
        return result;
    }
    /**
     * @param obj
     */
    public static void objectParse(Object obj) {
        List<Field> allField = findAllField(obj);
        for (Field field : allField) {
            field.setAccessible(true);
            Class<?> typeClazz = field.getType();
            matchFieldType(obj, field, typeClazz);
        }
    }
    public static List<Field> findAllField(Object object){
        List<Field> result = new ArrayList<>();
        Class<?> clazz = object.getClass();
        while (true) {
            clazz = clazz.getSuperclass();
            if (clazz == Object.class) {
                break;
            }
            Field[] declaredFields = clazz.getDeclaredFields();
            result.addAll(Arrays.asList(declaredFields));
        }
        return result;
    }
    /**
     * @param obj
     * @param field
     * @param clazz
     */
    public static <T> void matchFieldType(Object obj, Field field, T clazz) {
        try {
            T param = (T) field.get(obj);
            if(param == null){
                return;
            }
            if (clazz == List.class) {
                List p = (List)param;
                for (Object o : p) {
                    objectParse(o);
                }
            } else if (clazz == String.class) {
                setValue(obj, field, "测试");
            } else if (clazz == Map.class) {
                Map map = (Map)param;
                for (Object o : map.keySet()) {
                    objectParse(o);
                }
            }
        } catch (IllegalAccessException e) {
            e.printStackTrace();
        }
    }
    /**
     *
     * @param object
     * @param field
     * @param param
     * @throws IllegalAccessException
     */
    public static void setValue(Object object, Field field, Object param) throws IllegalAccessException {
        if(!field.isAccessible()){
            throw new IllegalAccessException("modify the field fail.");
        }
        field.set(object, param);
    }
}

org.springframework.web.servlet.mvc.method.annotation.RequestResponseBodyAdviceChain#beforeBodyWrite 

@ControllerAdvice
@Slf4j
public class ShanDongShengYuHandler implements ResponseBodyAdvice { 
    @Autowired
    private ObjectMapper objectMapper; 
    @Override
    public boolean supports(MethodParameter returnType, Class converterType) {
        return true;
    }
 
    @Override
    public Object beforeBodyWrite(Object body, MethodParameter returnType, MediaType selectedContentType, Class selectedConverterType, ServerHttpRequest request, ServerHttpResponse response) {
        ResponseData d = new ResponseData();
        sensitiveHidden(body);
        d.setData(body);
        return d;
    } 
 
    /**
     * 只支持自定义类型数据的敏感词过滤，考虑递归性能
     */
    private void sensitiveHidden(Object body) {
        if(body==null || StringUtils.isBlank(body.getClass().getName()) || !body.getClass().getName().contains("山东")){
            return;
        }
        Field[] declaredFields = body.getClass().getDeclaredFields();
        for (Field declaredField : declaredFields) {
            SensitiveWorldHidden annotation = declaredField.getAnnotation(SensitiveWorldHidden.class);
            log.warn("【注解类型】{}",annotation);
            try {
                declaredField.setAccessible(true);
                Object o = declaredField.get(body);
                if(annotation != null) {
                    String content = objectMapper.writeValueAsString(o);
                    content = content.replace("垃圾", "**");
                    Object replaced = objectMapper.readValue(content, o.getClass());
                    declaredField.set(body, replaced);
                }else {
                    sensitiveHidden(o);
                }
            } catch (IllegalAccessException e) {
                e.printStackTrace();
            } catch (JsonProcessingException e) {
                e.printStackTrace();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
}