fastjson和jackson的简单对比

中午吃完饭无聊，做了个fastjson和jackson的简单对比。fastjson是阿里做的国有开源Java工具包，jackson是spring mvc内置的json转换工具，孰强孰弱呢？结果吓我一跳！后面三张图，分别是1000条数据、5000条和1W条！

注：年轻时写着玩儿的，代码逻辑混乱，有严重bug。大家图个乐好了。

标签：  fastjson  Jackson

代码片段(6)[全屏查看所有代码]

1. [代码]主测试程序     

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public class JsonParseTest {        public static void main(String[] args) throws JsonProcessingException {          Monitoring.begin();          List<Corp> list = Lists.newArrayList();          for ( int i = 0 ; i < 1000 ; i++) {              list.add(fullObject(Corp. class ));          }          Monitoring.end( "生成数据" );            Monitoring.begin();          jackson(list);          Monitoring.end( "Jackson" );            Monitoring.begin();          fastjson(list);          Monitoring.end( "fastjson" );        }        public static void fastjson(List<Corp> list) {          for (Corp corp : list) {              String string = JSON.toJSONString(corp);          }      }        public static void jackson(List<Corp> list) throws JsonProcessingException {          for (Corp corp : list) {              String string = new ObjectMapper().writeValueAsString(corp);          }      }        /**       * 填充一个对象（一般用于测试）       */      public static <T> T fullObject(Class<T> cl) {          T t = null ;          try {              t = cl.newInstance();              Method methods[] = cl.getMethods();              for (Method method : methods) {                  // 如果是set方法,进行随机数据的填充                  if (method.getName().indexOf( "set" ) == 0 ) {                      Class param = method.getParameterTypes()[ 0 ];                      if (param.equals(String. class )) {                          method.invoke(t, randomCodes( 5 ));                      } else if (param.equals(Short. class )) {                          method.invoke(t, ( short ) new Random().nextInt( 5 ));                      } else if (param.equals(Float. class )) {                          method.invoke(t, new Random().nextFloat());                      } else if (param.equals(Double. class )) {                          method.invoke(t, new Random().nextDouble());                      } else if (param.equals(Integer. class )) {                          method.invoke(t, new Random().nextInt( 10 ));                      } else if (param.equals(Long. class )) {                          method.invoke(t, new Random().nextLong());                      } else if (param.equals(Date. class )) {                          method.invoke(t, new Date());                      } else if (param.equals(Timestamp. class )) {                          method.invoke(t, new Timestamp(System.currentTimeMillis()));                      } else if (param.equals(java.sql.Date. class )) {                          method.invoke(t, new java.sql.Date(System.currentTimeMillis()));                      }                  }              }          } catch (InstantiationException e) {              e.printStackTrace();          } catch (IllegalAccessException e) {              e.printStackTrace();          } catch (IllegalArgumentException e) {              e.printStackTrace();          } catch (InvocationTargetException e) {              e.printStackTrace();          }          return t;      } }

2. [代码]Corp类     

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public class Corp {      private Long uid;      private Integer corpGrade;      private Integer cityId;      private String name;      private String EName;      private String description;      private String zipCode;      private String tel;      private String fax;      private String EMail;      private Integer isEmailOpen;      private Integer EMailChecked;      private Timestamp regDateOnGov;      private String backroll;      private String address;      private String webStoreUrl;      private Integer isNew;      private Integer credit;      private Integer activeDegrees;      private Integer hits;      private Integer isHitsRecord;      private Timestamp regTimeOnZfa;      private Integer corpType;      private Integer corpMajorcategoryId;      private Integer businessRoleId;      private String keyword;      private Integer developState;      private String isAlert;      private Integer advMemState;      private Integer advStockState;      private Integer allianceState;      private Timestamp lastUpdateTime;      private Integer corpMajorcategoryId1;      private String keyword1;      private Long certificatePic;      private Integer isUpdateCharter;      private Integer currcount;      private Integer curronsale;      private Integer curronhot;      private Integer currniccount;      private Integer currniconsale;      private Integer currniconhot;      private String buyProducts;      private Integer isOpenShop;      private Integer state;      private String mainProduct;      private String advBrandIds;      private String feature;      private Integer category;      private Integer contactFlag;      private String fastPassage;            //省略getter、setter方法 }

3. [代码]小的监控管理类     

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public class Monitoring {      private static ThreadLocal<Long> begin = new ThreadLocal<Long>();        public static void begin() {          begin.set(System.currentTimeMillis());      }        public static void end(String name) {          double time = (System.currentTimeMillis() - begin.get()) / 1000.0 ;          System.out.println(name + "所用时间（秒）：" + time);      } }

4. [图片] 1000.png    

5. [图片] 5000.png    

6. [图片] 10000.png