XML跟Json的一些对比

xml、json序列化反序列化时间对比

 

结果：单位（毫秒）

xml:30810

fastjson:859

gson:1482

 

源代码：

private void compTime() {Person p = new Person();p.setAge(23);p.setName("李志鹏");p.setBirthday(new Date());long count = 100000;System.out.println("-----------------------compTime-----------------------");long startMili;long endMili;startMili = System.currentTimeMillis();for (int i = 0; i < count; i++) {Writer writer = new StringWriter();JAXB.marshal(p, writer);String xml = writer.toString();Reader reader = new StringReader(xml);Person retP = JAXB.unmarshal(reader, p.getClass());}endMili = System.currentTimeMillis();System.out.println("xml:" + (endMili - startMili));startMili = System.currentTimeMillis();for (int i = 0; i < count; i++) {String json = JSON.toJSONString(p);Person retP = JSON.parseObject(json, new TypeReference<Person>() {});}endMili = System.currentTimeMillis();System.out.println("fastjson:" + (endMili - startMili));startMili = System.currentTimeMillis();Gson gson = new GsonBuilder().setDateFormat("yyyy-MM-dd HH:mm:ss").create();for (int i = 0; i < count; i++) {String json = gson.toJson(p);Person retP = gson.fromJson(json,new TypeToken<Person>() {}.getType());}endMili = System.currentTimeMillis();System.out.println("gson:" + (endMili - startMili));}

 

序列化同一对象形成的数据大小对比：

结果：单位：字节

json:368
xml:568

源代码：

private void compSize() {Map<String, Object> map = TestPrepareData.getStudentAndTeacher();String json = JSON.toJSONString(map);String xml = XmlJson.json2xml(json);System.out.println("json:" + json);System.out.println("xml:" + xml);System.out.println("json:" + json.length());System.out.println("xml:" + xml.length());}