Java Code Examples for com.alibaba.fastjson.serializer.JSONSerializer#write()

/**
 * 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();
    }
}
 

public void write(JSONSerializer serializer, Object fieldName, Type fieldType, int features) throws IOException {
    SerializeWriter writer = serializer.out;

    if(jsonpFunction == null){
        serializer.write(value);
        return;
    }


    if ((features & BrowserSecureMask) != 0 || (writer.isEnabled(BrowserSecureMask))) {
        writer.write(SECURITY_PREFIX);
    }

    writer.write(jsonpFunction);
    writer.write('(');
    serializer.write(value);
    writer.write(')');
}
 

private static final byte[] toJSONBytes(Object object, String charsetName,
		SerializerFeature... features) {
	
	if(charsetName == null){
		charsetName = DEFAULT_ENCODING;
	}
	
	SerializeWriter out = new SerializeWriter(); 
	try {
		JSONSerializer serializer = new JSONSerializer(out);
		for (SerializerFeature feature : features) {
			serializer.config(feature, true);
		}

		serializer.write(object);

		return out.toBytes(charsetName);
	} finally {
		out.close();
	}
}
 

public void write(JSONSerializer serializer, Object fieldName, Type fieldType, int features) throws IOException {
    SerializeWriter writer = serializer.out;

    if ((features & SerializerFeature.BrowserSecure.mask) != 0
            || (writer.isEnabled(SerializerFeature.BrowserSecure.mask)))
    {
        writer.write(SECURITY_PREFIX);
    }

    writer.write(function);
    writer.write('(');
    for (int i = 0; i < parameters.size(); ++i) {
        if (i != 0) {
            writer.write(',');
        }
        serializer.write(parameters.get(i));
    }
    writer.write(')');
}
 

/**
 * 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();
    }
}
 

/**
 * 写值
 *
 * @param serializer 输出
 * @param field      字段
 * @param value      值
 * @param ignoreNull 是否忽略null值
 * @param separator  分隔符位置
 */
protected void write(final JSONSerializer serializer, final String field, final Object value,
                     final boolean ignoreNull, final int separator) {
    if (value != null || !ignoreNull) {
        SerializeWriter out = serializer.getWriter();
        if (separator == BEFORE) {
            out.write(',');
        }
        out.writeFieldName(field);
        serializer.write(value);
        if (separator == AFTER) {
            out.write(',');
        }
    }
}
 

protected void writeObject(ServletRequest request, ServletResponse response, Object result) throws IOException {
	String characterEncoding = ((HttpServletRequest) request).getCharacterEncoding();
	Charset charset = Strings.isNullOrEmpty(characterEncoding) ? DEFAULT_CHARSET : Charset.forName(characterEncoding);
	OutputStreamWriter out = new OutputStreamWriter(response.getOutputStream(), charset);
	SerializeWriter writer = new SerializeWriter(out);
	JSONSerializer serializer = new JSONSerializer(writer, SpringContext.getBean(SerializeConfig.class));
	serializer.config(SerializerFeature.DisableCircularReferenceDetect, true);
	serializer.write(result);
	writer.flush();
	out.close();
}
 

public void writeObject(Object obj) throws IOException {
    SerializeWriter out = new SerializeWriter();
    JSONSerializer serializer = new JSONSerializer(out);
    serializer.config(SerializerFeature.WriteEnumUsingToString, true);
    serializer.write(obj);
    out.writeTo(writer);
    out.close(); // for reuse SerializeWriter buf
    writer.println();
    writer.flush();
}
 

@Override
default void write(JSONSerializer jsonSerializer, Object o, Type type, int i) throws IOException {
    if (isWriteJSONObjectEnabled()) {
        jsonSerializer.write(getWriteJSONObject());
    } else {
        jsonSerializer.write(getValue());
    }
}
 

/**
 * @param serializer
 * @param object
 * @param fieldName
 * @param fieldType
 * @param features
 * @throws IOException
 * @author tanyaowu
 */
@Override
public void write(JSONSerializer serializer, Object object, Object fieldName, Type fieldType, int features) throws IOException {
	if (object == null) {
		serializer.out.writeNull();
		return;
	}

	Record record = (Record) object;

	Map<String, Object> map = record.getColumns();
	serializer.write(map);
}
 

@Override
public void write(JSONSerializer serializer, Object object, Object fieldName, Type fieldType, int features)
		throws IOException {
	SerializeWriter out = serializer.getWriter();
	if (object == null) {
		out.writeNull();
		return;
	}

	Page<?> page = (Page<?>) object;

	out.write('{');

	out.writeFieldName(DEFAULT_CURRENT_FIELD);
	out.writeInt(page.getNumber());
	out.write(',');

	out.writeFieldName(DEFAULT_ROWCOUNT_FIELD);
	out.writeInt(page.getSize());
	out.write(',');

	out.writeFieldName(DEFAULT_TOTAL_FIELD);
	out.writeLong(page.getTotalElements());
	out.write(',');

	out.writeFieldName(DEFAULT_ROWS_FIELD);
	serializer.write(page.getContent());

	out.write('}');
}
 

@Override
public void writeObject(Object obj) throws IOException {
    SerializeWriter out = new SerializeWriter();
    JSONSerializer serializer = new JSONSerializer(out);
    serializer.config(SerializerFeature.WriteEnumUsingToString, true);
    serializer.write(obj);
    out.writeTo(writer);
    out.close(); // for reuse SerializeWriter buf
    writer.println();
    writer.flush();
}
 

@Override
protected void writeInternal(Object obj, Type type, HttpOutputMessage outputMessage)
		throws IOException, HttpMessageNotWritableException {
	Charset charset = getCharset(outputMessage.getHeaders());
	OutputStreamWriter out = new OutputStreamWriter(outputMessage.getBody(), charset);
	SerializeWriter writer = new SerializeWriter(out);
	JSONSerializer serializer = new JSONSerializer(writer, this.serializeConfig);
	serializer.config(SerializerFeature.DisableCircularReferenceDetect, true);

	RequestAttributes requestAttributes = RequestContextHolder.getRequestAttributes();
	if (requestAttributes instanceof ServletRequestAttributes) {
		Class<?> rootClass = filterClass(obj);
		if (rootClass != null) {
			String[] paths = ((ServletRequestAttributes) requestAttributes).getRequest()
					.getParameterValues("paths");
			if (paths != null && paths.length > 0) {
				rootClass = ClassUtils.getUserClass(rootClass);
				Map<Class<?>, PropertyPreFilter> propertyFilters = new HashMap<>();
				pathVisit(propertyFilters, Sets.newHashSet(paths), rootClass);

				for (Entry<Class<?>, PropertyPreFilter> entry : propertyFilters.entrySet()) {
					serializer.getPropertyPreFilters().add(entry.getValue());
				}
			} else {

				serializer.getPropertyFilters().add(DEFAULT_PROPERTY_FILTER);
			}
		} else {
			serializer.getPropertyFilters().add(DEFAULT_PROPERTY_FILTER);
		}
	}
	serializer.write(obj);
	writer.flush();
	out.close();
}
 

@Override
protected char[] applyJsonQuoting(String content) {
    SerializeWriter out = new SerializeWriter();
    try {
        JSONSerializer serializer = new JSONSerializer(out);
        serializer.write(content);
        return out.toCharArrayForSpringWebSocket();
    } finally {
        out.close();
    }
}
 

public void writeObject(Object obj) throws IOException {
    SerializeWriter out = new SerializeWriter();
    JSONSerializer serializer = new JSONSerializer(out);
    serializer.config(SerializerFeature.WriteEnumUsingToString, true);
    serializer.write(obj);
    out.writeTo(writer);
    writer.println();
    writer.flush();
}
 

@Override
public void write(JSONSerializer serializer, Object valueObject, Object fieldName, Type fieldType, int features) throws IOException {
    ObjectId value = (ObjectId) valueObject;
    String id = value.toString();
    serializer.write(id);
}
 

@Override
public void write(JSONSerializer serializer, Object object, Object fieldName, Type fieldType, int features)
		throws IOException {

	SerializeWriter out = serializer.getWriter();
	if (object == null) {
		out.writeNull();
		return;
	}

	Result result = (Result) object;

	out.write('{');

	Map<String, Object> extraProperties = result.getExtraProperties();
	for (Entry<String, Object> entry : extraProperties.entrySet()) {
		String key = entry.getKey();
		Object value = entry.getValue();

		out.writeFieldName(key);
		serializer.write(value);
		out.write(',');
	}

	out.writeFieldName(FIELD_SUCCESS);
	out.write(Objects.equal(result.getCode(), Code.success));
	out.write(',');

	out.writeFieldName(FIELD_CODE);
	out.writeString(result.getCode().name());
	out.write(',');

	out.writeFieldName(FIELD_MESSAGE);
	out.writeString(result.getMessage());
	out.write(',');

	out.writeFieldName(FIELD_DATA);
	serializer.write(result.getData());

	out.write('}');
}
 

@Override
public void write(JSONSerializer serializer, Object object, Object fieldName, Type fieldType, int features) throws IOException {
	Counter counter = (Counter) object;
	serializer.write(counter.getCount());
}
 

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();
    }
}