com.alibaba.fastjson.serializer.SerializeWriter#toString ( )源码实例Demo

/**
 * 可以允许指定一些过滤字段进行生成json对象
 */
public static String marshalToString(Object obj, String... fliterFields) {
    final List<String> propertyFliters = Arrays.asList(fliterFields);
    SerializeWriter out = new SerializeWriter();
    try {
        JSONSerializer serializer = new JSONSerializer(out);
        serializer.getPropertyFilters().add(new PropertyFilter() {

            public boolean apply(Object source, String name, Object value) {
                return !propertyFliters.contains(name);
            }

        });
        serializer.write(obj);
        return out.toString();
    } finally {
        out.close();
    }
}
 

/**
 * 可以允许指定一些过滤字段进行生成json对象
 */
public static String marshalToString(Object obj, String... fliterFields) {
    final List<String> propertyFliters = Arrays.asList(fliterFields);
    SerializeWriter out = new SerializeWriter();
    try {
        JSONSerializer serializer = new JSONSerializer(out);
        serializer.getPropertyFilters().add(new PropertyFilter() {

            public boolean apply(Object source, String name, Object value) {
                return !propertyFliters.contains(name);
            }

        });
        serializer.write(obj);
        return out.toString();
    } finally {
        out.close();
    }
}
 

/**
 * 对象转json
 * <p>
 * 需要jsonFiled注解
 * </p>
 *
 * @param object a {@link java.lang.Object} object.
 * @return a {@link java.lang.String} object.
 */
public static String toJSONString(Object object) {
	SerializeWriter out = new SerializeWriter();
	try {
		Map<String, Field> fieldCacheMap = new HashMap<>();
		ParserConfig.parserAllFieldToCache(object.getClass(), fieldCacheMap);
		JSONSerializer serializer = new JSONSerializer(out);
		PropertyFilter filter = (Object source, String name, Object value) -> {
			Field field = ParserConfig.getFieldFromCache(name, fieldCacheMap);
			if (field != null) {
				JSONField fieldAnnotation = field.getAnnotation(JSONField.class);
				if (fieldAnnotation != null) {
					return true;
				}
				return false;
			}
			return true;
		};
		serializer.getPropertyFilters().add(filter);
		serializer.write(object);
		return out.toString();
	} finally {
		out.close();
	}
}
 

/**
 * 可以允许指定一些过滤字段进行生成json对象
 */
public static String marshalToString(Object obj, String... fliterFields) {
    final List<String> propertyFliters = Arrays.asList(fliterFields);
    SerializeWriter out = new SerializeWriter();
    try {
        JSONSerializer serializer = new JSONSerializer(out);
        serializer.getPropertyFilters().add(new PropertyFilter() {

            public boolean apply(Object source, String name, Object value) {
                return !propertyFliters.contains(name);
            }

        });
        serializer.write(obj);
        return out.toString();
    } finally {
        out.close();
    }
}
 

/**
 *  将一个包含Date类型数据的Object序列化成字符串
 * @param object
 * @param dateFormat
 * @param features
 * @return
 */
public static String toJSONStringWithDateFormat(Object object, String dateFormat, SerializerFeature... features) {
       SerializeWriter out = new SerializeWriter();
       try {
           SerializeConfig config = new SerializeConfig();
		JSONSerializer serializer = new JSONSerializer(out,config );
           if(dateFormat != null) {
           	serializer.setDateFormat(dateFormat);
           }
           for (com.alibaba.fastjson.serializer.SerializerFeature feature : features) {
               serializer.config(feature, true);
           }
           serializer.write(object);
           return out.toString();
       } finally {
           out.close();
       }
   }
 

/**
 * 可以允许指定一些过滤字段进行生成json对象
 */
public static String marshalToString(Object obj, String... fliterFields) {
    final List<String> propertyFliters = Arrays.asList(fliterFields);
    SerializeWriter out = new SerializeWriter();
    try {
        JSONSerializer serializer = new JSONSerializer(out);
        serializer.getPropertyFilters().add(new PropertyFilter() {

            public boolean apply(Object source, String name, Object value) {
                return !propertyFliters.contains(name);
            }

        });
        serializer.write(obj);
        return out.toString();
    } finally {
        out.close();
    }
}
 

/**
 * @see 将一个Object序列化成字符串
 * @param object
 * @param features
 * @return
 */
public static String toJSONString(Object object, SerializerFeature... features) {
       SerializeWriter out = new SerializeWriter();
       try {
           SerializeConfig config = new SerializeConfig();
		JSONSerializer serializer = new JSONSerializer(out,config );
           for (com.alibaba.fastjson.serializer.SerializerFeature feature : features) {
               serializer.config(feature, true);
           }
           serializer.write(object);
           return out.toString();
       } finally {
           out.close();
       }
   }
 

public String toJSONString(Object object, SerializeFilter filter, SerializerFeature[] features) {
    SerializeWriter out = new SerializeWriter();

    try {
        JSONSerializer serializer = new JSONSerializer(out, fastJsonConfig.serializeConfig);
        if (features != null) {
            for (SerializerFeature feature : features) {
                serializer.config(feature, true);
            }
        }

        if (filter != null) {
            if (filter instanceof PropertyPreFilter) {
                serializer.getPropertyPreFilters().add((PropertyPreFilter) filter);
            }

            if (filter instanceof NameFilter) {
                serializer.getNameFilters().add((NameFilter) filter);
            }

            if (filter instanceof ValueFilter) {
                serializer.getValueFilters().add((ValueFilter) filter);
            }

            if (filter instanceof PropertyFilter) {
                serializer.getPropertyFilters().add((PropertyFilter) filter);
            }

            if (filter instanceof BeforeFilter) {
                serializer.getBeforeFilters().add((BeforeFilter) filter);
            }

            if (filter instanceof AfterFilter) {
                serializer.getAfterFilters().add((AfterFilter) filter);
            }
        }

        serializer.write(object);

        return out.toString();
    } finally {
        out.close();
    }
}