Java JSON.toJSON方法代码示例

import com.alibaba.fastjson.JSON; //导入方法依赖的package包/类
public void test_annoation() throws Exception {
        Bob bob = new Bob("Bob", 30, true);
//        JSONObject obj = (JSONObject) JSON.toJSON(bob);
//        assertEquals(3, obj.size());
//        assertEquals(Boolean.TRUE, obj.get("sex"));
//        assertEquals("Bob", obj.get("name"));
//        assertEquals(new Integer(30), obj.get("age"));

        PersonInfo info = Bob.class.getAnnotation(PersonInfo.class);
        JSONObject obj = (JSONObject) JSON.toJSON(info);

        assertEquals(3, obj.size());
        assertEquals(Boolean.TRUE, obj.get("sex"));
        assertEquals("Bob", obj.get("name"));
        assertEquals(new Integer(30), obj.get("age"));
    }
 

import com.alibaba.fastjson.JSON; //导入方法依赖的package包/类
@RequestMapping("/view.html")
public String viewInput(String payOrderId, ModelMap model) {
    PayOrder item = null;
    if(StringUtils.isNotBlank(payOrderId)) {
        item = payOrderService.selectPayOrder(payOrderId);
    }
    if(item == null) {
        item = new PayOrder();
        model.put("item", item);
        return "pay_order/view";
    }
    JSONObject object = (JSONObject) JSON.toJSON(item);
    if(item.getPaySuccTime() != null) object.put("paySuccTime", DateUtil.date2Str(new Date(item.getPaySuccTime())));
    if(item.getLastNotifyTime() != null) object.put("lastNotifyTime", DateUtil.date2Str(new Date(item.getLastNotifyTime())));
    if(item.getExpireTime() != null) object.put("expireTime", DateUtil.date2Str(new Date(item.getExpireTime())));
    if(item.getAmount() != null) object.put("amount", AmountUtil.convertCent2Dollar(item.getAmount()+""));
    model.put("item", object);
    return "pay_order/view";
}
 

import com.alibaba.fastjson.JSON; //导入方法依赖的package包/类
@RequestMapping("/view.html")
public String viewInput(String orderId, ModelMap model) {
    MchNotify item = null;
    if(StringUtils.isNotBlank(orderId)) {
        item = mchNotifyService.selectMchNotify(orderId);
    }
    if(item == null) {
        item = new MchNotify();
        model.put("item", item);
        return "mch_notify/view";
    }
    JSONObject object = (JSONObject) JSON.toJSON(item);
    if(item.getCreateTime() != null) object.put("createTime", DateUtil.date2Str(item.getCreateTime()));
    if(item.getUpdateTime() != null) object.put("updateTime", DateUtil.date2Str(item.getUpdateTime()));
    if(item.getLastNotifyTime() != null) object.put("lastNotifyTime", DateUtil.date2Str(item.getLastNotifyTime()));
    model.put("item", object);
    return "mch_notify/view";
}
 

import com.alibaba.fastjson.JSON; //导入方法依赖的package包/类
@Override
public List<LastDPValue> lastdp(Collection<Timeline> timelines) throws HttpUnknowStatusException {
	Object timelinesJSON = JSON.toJSON(timelines);
	JSONObject obj = new JSONObject();
	obj.put("queries", timelinesJSON);
	String jsonString = obj.toJSONString();
	HttpResponse httpResponse = httpclient.post(HttpAPI.QUERY_LASTDP, jsonString);
	ResultResponse resultResponse = ResultResponse.simplify(httpResponse, this.httpCompress);
	HttpStatus httpStatus = resultResponse.getHttpStatus();
	switch (httpStatus) {
	case ServerSuccessNoContent:
		return null;
	case ServerSuccess:
		String content = resultResponse.getContent();
		List<LastDPValue> queryResultList = JSON.parseArray(content, LastDPValue.class);
		return queryResultList;
	case ServerNotSupport:
		throw new HttpServerNotSupportException(resultResponse);
	case ServerError:
		throw new HttpServerErrorException(resultResponse);
	default:
		throw new HttpUnknowStatusException(resultResponse);
	}
}
 

import com.alibaba.fastjson.JSON; //导入方法依赖的package包/类
@RequestMapping("/view.html")
public String viewInput(String refundOrderId, ModelMap model) {
    RefundOrder item = null;
    if(StringUtils.isNotBlank(refundOrderId)) {
        item = refundOrderService.selectRefundOrder(refundOrderId);
    }
    if(item == null) {
        item = new RefundOrder();
        model.put("item", item);
        return "refund_order/view";
    }
    JSONObject object = (JSONObject) JSON.toJSON(item);
    if(item.getRefundSuccTime() != null) object.put("refundSuccTime", DateUtil.date2Str(item.getRefundSuccTime()));
    if(item.getExpireTime() != null) object.put("expireTime", DateUtil.date2Str(item.getExpireTime()));
    if(item.getRefundAmount() != null) object.put("amount", AmountUtil.convertCent2Dollar(item.getRefundAmount()+""));
    model.put("item", object);
    return "refund_order/view";
}
 

import com.alibaba.fastjson.JSON; //导入方法依赖的package包/类
public static JSONObject encryptionByName(HttpSession session, Object data, Set<String> valueSet, boolean encryption) {
	JSONObject req = (JSONObject) JSON.toJSON(data);
	SerializerUtil serializer = new SerializerUtil(session, null, valueSet, encryption);
	if(null != valueSet) {
		return (JSONObject) req.parse(req.toJSONString(req, serializer.valuefilter));
	}
	return req;
}
 

import com.alibaba.fastjson.JSON; //导入方法依赖的package包/类
public void test_1() throws Exception {
    JSONObject user = new JSONObject();
    user.put("id", 3);
    user.put("name", "周访");

    JSONObject json = (JSONObject) JSON.toJSON(user);

    Assert.assertEquals(new Long(3), json.getLong("id"));
    Assert.assertEquals("周访", json.getString("name"));
}
 

import com.alibaba.fastjson.JSON; //导入方法依赖的package包/类
public void test_2() throws Exception {
    HashMap user = new HashMap();
    user.put("id", 3);
    user.put("name", "周访");

    JSONObject json = (JSONObject) JSON.toJSON(user);

    Assert.assertEquals(new Long(3), json.getLong("id"));
    Assert.assertEquals("周访", json.getString("name"));
}
 

import com.alibaba.fastjson.JSON; //导入方法依赖的package包/类
public void test_3() throws Exception {
    List users = new ArrayList();
    HashMap user = new HashMap();
    user.put("id", 3);
    user.put("name", "周访");
    users.add(user);

    JSONArray array = (JSONArray) JSON.toJSON(users);
    JSONObject json = array.getJSONObject(0);

    Assert.assertEquals(new Long(3), json.getLong("id"));
    Assert.assertEquals("周访", json.getString("name"));
}
 

import com.alibaba.fastjson.JSON; //导入方法依赖的package包/类
public void test_error() throws Exception {
    C c = new C();

    JSONException error = null;
    try {
        JSON.toJSON(c);
    } catch (JSONException e) {
        error = e;
    }
    Assert.assertNotNull(error);
}
 

import com.alibaba.fastjson.JSON; //导入方法依赖的package包/类
public void test_ex() throws Exception {
    RuntimeException ex = new RuntimeException();
    JSONObject object = (JSONObject) JSON.toJSON(ex);
    JSONArray array = object.getJSONArray("stackTrace");
    array.getJSONObject(0).put("lineNumber", null);
    
    JSON.parseObject(object.toJSONString(), Exception.class);
}
 

import com.alibaba.fastjson.JSON; //导入方法依赖的package包/类
public void test_page() throws Exception {
    List<Post> postList = new ArrayList<Post>();
    {
        postList.add(new Post(1001));
    }
    
    Page<Post> page = new PageImpl(postList);
    
    JSONObject obj = (JSONObject) JSON.toJSON(page);
    Assert.assertNotNull(obj);
    Assert.assertEquals(1, obj.getJSONArray("content").size());
}
 

import com.alibaba.fastjson.JSON; //导入方法依赖的package包/类
public void test_checkObject() {
    Art origin = makeOrigin();
    JSONObject articleObj = (JSONObject) JSON.toJSON(origin);

    JSONObject dataObj = new JSONObject();
    dataObj.put("art", articleObj);

    Art other = dataObj.getObject("art", Art.class);// return null;
    assertSame(origin, other); // test failed
}
 

import com.alibaba.fastjson.JSON; //导入方法依赖的package包/类
public void test_for_issue() throws Exception {
    Model model = new Model();
    model.date = new Date(1483413683714L);

    JSONObject obj = (JSONObject) JSON.toJSON(model);
    assertEquals("{\"date\":\"2017-01-03 11:21:23\"}", obj.toJSONString());
}
 

import com.alibaba.fastjson.JSON; //导入方法依赖的package包/类
public void test_for_issue() throws Exception {
    Date now = new Date();

    GregorianCalendar gregorianCalendar = (GregorianCalendar) GregorianCalendar.getInstance();
    gregorianCalendar.setTime(now);

    XMLGregorianCalendar calendar = DatatypeFactory.newInstance().newXMLGregorianCalendar(gregorianCalendar);

    String jsonString = JSON.toJSONString(calendar);
    // success
    calendar = JSON.parseObject(jsonString, XMLGregorianCalendar.class);

    Object toJSON1 = JSON.toJSON(calendar); // debug看到是 Long 类型
    // 所以这里会报错：
    // error: java.lang.ClassCastException: java.lang.Long cannot be cast to com.alibaba.fastjson.JSONObject
    //JSONObject jsonObject = (JSONObject) JSON.toJSON(calendar);
    // 所以 这里肯定会报错， 因为 jsonObject 不是JSONObject类型
    //calendar = jsonObject.toJavaObject(XMLGregorianCalendar.class);

    List<XMLGregorianCalendar> calendarList = new ArrayList<XMLGregorianCalendar>();
    calendarList.add(calendar);
    calendarList.add(calendar);
    calendarList.add(calendar);

    Object toJSON2 = JSON.toJSON(calendarList); // debug 看到是 JSONArray 类型

    // success： 通过 JSONArray.parseArray 方法可以正确转换
    JSONArray jsonArray = (JSONArray) JSON.toJSON(calendarList);
    jsonString = jsonArray.toJSONString();
    List<XMLGregorianCalendar> calendarList1 = JSONArray.parseArray(jsonString, XMLGregorianCalendar.class);

    // 通过 jsonArray.toJavaList 无法转换
    // error: com.alibaba.fastjson.JSONException: can not cast to : javax.xml.datatype.XMLGregorianCalendar
    List<XMLGregorianCalendar> calendarList2 = jsonArray.toJavaList(XMLGregorianCalendar.class);
    assertNotNull(calendarList2);
    assertEquals(3, calendarList2.size());
}