fastjson发布1.1.1版本

之前的一个版本是1.1.0，1.1.0采用asm和SortFastMatch算法提高性能，由于过于着急展示其优越的性能，没有进行严格测试就发布了。

1.1.1相对于1.1.0，这是一个比较稳定的版本了，行测试覆盖率重新提升到90%以上，build verify testcase 983个。

这个版本进一步完善了asm和SortFastMatch算法，进一步提升了性能，同时补充了大量的testcase，提升了稳定性，我向你推荐使用这个版本，使用这个版本你将会得到令人惊奇的性能。

1.1.1版本的asm来源自objectweb的asm项目，根据fastjson的需要做裁剪，确保引入asm的同时不引起包大小的过渡变大。

为了更好使用sort field martch优化算法提升parser的性能，fastjson序列化的时候，缺省把SerializerFeature.SortField特性打开了。反序列化的时候也缺省把SortFeidFastMatch的选项打开了。这样，如果你用fastjson序列化的文本，输出的结果是按照fieldName排序输出的，parser时也能利用这个顺序进行优化读取。这种情况下，parser能够获得非常好的性能。

我使用github.com/eishay/jvm-serializers/提供的程序做测试，性能数据如下：
|  | 序列化时间 | 反序列化时间 | 大小 | 压缩后大小 |
|java序列化| 8546 | 43199 | 889 | 541|
|hessian| 6643 | 10043 | 501 | 313 |
|protobuf|3008 | 1694 | 239 | 149 |
| thrift | 3182 | 1951 | 349 | 197 |
| avro | 3575 | 2095 | 221 | 133 |
| jackson | 3245 | 2986 | 503 | 271 |
| fastjson | 2292 | 1499 | 468 | 251 |

的是跑的脚本是：
{code}
./run -chart -include=`cat serializers.txt | tr "\\n" ","`  data/media.1.cks
{code}

从上面的数据来看，fastjson的性能已经超越protobuf、thrift、avro这些二进制协议了。一个文本协议的性能超越二进制协议是很难的，我很高兴向你宣布我做到了！！

鉴于fastjson优越的性能表现，我建议做如下事情；
1、替换其他所有的json库，java世界里没有其他的json库能够和fastjson可相比了。
2、使用fastjson的序列化和反序列化替换java serialize，java serialize不单性能慢，而且体制大。
3、使用fastjson替换hessian，json协议不必hessian体积大，而且fastjson性能优越，数倍于hessian
4、把fastjson用于memached缓存对象数据。

h3. How to get it?
If you're Maven user, just use our maven repository(http://code.alibabatech.com/mvn/releases/) with folloging dependency
{code}
<dependency>
     <groupId>com.alibaba</groupId>
     <artifactId>fastjson</artifactId>
     <version>1.1.1</version>
</dependency>
{code}

h3. Downlaods
Source : http://code.alibabatech.com/mvn/releases/com/alibaba/fastjson/1.1.1/fastjson-1.1.1.jar
Binary :http://code.alibabatech.com/mvn/releases/com/alibaba/fastjson/1.1.1/fastjson-1.1.1-sources.jar
Subversion : http://code.alibabatech.com/svn/fastjson/

评论

2 楼 yixiandave 2014-03-26  

SortField如何关闭？我输出前是排序过的（和key无关），但是调用JSON.toJSONString()后按key重新排序了

1 楼 tywo45 2011-08-01  

下面这段是1.1.1生成的json串，IE解析不了（同样的内容用1.0.6解析是可以的）：{"completed":false,"currentDbName":"BRSCFG_DB","currentTableName":"R_IPDISP","dbCount":5,"dbIndex":5,"exceptionOccured":false,"infoForShow":"","progressIndex":3,"saveResult":0,"synMsgChangeListener":{"dispathComleted":false,"responseList":[{"responseMsg":"ftp mdb sync: recv msg from omc!"},{"responseMsg":"Table: R_FRG_IPDISP is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_IPV6DISP is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_INTERMEDIAIP is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_BRSGLOBAL is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_MAXCON is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_IPPD is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_IPDISP4_6_DYNAMIC is a new table, not exist in ZDB !"},{"responseMsg":"Table R_SCTP Field MAXBURST: FieldType isn't compatible,TypeZDB=2,TypeMem=1!"},{"responseMsg":"Table R_SCTP Field MAXBURST: FieldLength 1 is smaller in Mem!"},{"responseMsg":"Table: R_PORTATTIBUTE is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_STATICARP is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_BFDAUTH is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_BFDSESSION is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_VPN_VRF is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_VRF_ATTR is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_VRF_RT is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_IPGLOBAL is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_INICFG is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_DNSSERVER is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_DNSPREFER is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_DNSGLOBAL is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_ACL4_NAME is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_ACL4 is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_ACL6 is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_MACL is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_STATICNDENTRY is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_NDPREFIX is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_PREFIXDEFAULT is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_MLDGROUP is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_TUNNEL is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_IPV6_INTF is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_IPV6_RIM is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_POLICYMAP is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_POLICYMAPITEM is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_TUNNELNO is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_IKE_POLICY is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_IKE_POLICYATTR is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_IKE_PSK is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_IKE_XCHMODE is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_IKE_VERSION is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_IKE_GLOBAL is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_IPSEC_TRANS is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_CRYPTO_MAP is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_CRYPTO_MAPITEM is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_RMP_NAME is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_RMP_MATCH_ACL is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_RMPPBR_SETIPNH is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_RMPPBR_SETOTH is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_IPE1PORT is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_PPPCFG is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_MPCFG is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_FTPS is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_FTPC is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_ETHERNETOAM is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_COMPATCFG is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_VRRP_GROUP is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_VRRP_SECONDIP is a new table, not exist in ZDB !"},{"responseMsg":"Table R_INTERFACE Field VRFID: FieldType changed! Zdb: BYTE, Mem: WORD!"},{"responseMsg":"Table R_INTERFACE Field ACL4_NAME_IN does not exist in ZDB!"},{"responseMsg":"Table R_INTERFACE Field ACL4_NAME_OUT does not exist in ZDB!"},{"responseMsg":"Table R_INTERFACE Field CRYPTO_MAP does not exist in ZDB!"},{"responseMsg":"Table: R_DES_BOARDINFO is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_NETCFG is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_LOMP is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_NETYPE_DIS is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_APSGROUP is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_APSCHANNEL is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_SDHSOHPARA is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_SDHHPPARA is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_SDHLPPARA is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_RPT_RACK is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_RPT_SHELF is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_RPT_BOARDPLUS is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_RPT_DES_BOARDINFO is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_TCPTRANS is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_BOARDCOMPAT is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_N7ISNITR is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_N7CLT is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_LINKMONI is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_CLT is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_R2OFFICE is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_OFFICEEX is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_IUADCHNL is a new table, not exist in ZDB !"},{"responseMsg":"Table R_SUBSYSTEM Field STATUS does not exist in ZDB!"},{"responseMsg":"Table R_MODULE Field STATUS does not exist in ZDB!"},{"responseMsg":"Table R_UNIT Field STATUS does not exist in ZDB!"},{"responseMsg":"Table R_SUNIT Field STATUS does not exist in ZDB!"},{"responseMsg":"Table R_OFFICE Field TAG: FieldType changed! Zdb: BYTE, Mem: DWORD!"},{"responseMsg":"Table R_OFFICE Field CLUSTERID does not exist in ZDB!"},{"responseMsg":"Table R_N7LS Field STATUS does not exist in ZDB!"},{"responseMsg":"Table R_SIGROUTE Field RANGEMODE does not exist in ZDB!"},{"responseMsg":"Table: R_ST is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_ST_DATA is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_PM_GLOBAL is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_PM_DATA is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_ALARM is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_ALARMFILTER is a new table, not exist in ZDB !"},{"responseMsg":"Table: R_OBJECT is a new table, not exist in ZDB !"},{"responseMsg":"Table R_SIUCFG Field SCMEDIALEDNUM: FieldLength 100 is longer in Mem!"},{"responseMsg":"Table R_SIUCFG Field SCMEBLACKSERVICE: FieldLength 12 is longer in Mem!"},{"responseMsg":"Table R_SIUCFG Field SCMEVCSKY: FieldLength 96 is longer in Mem!"},{"dbNum":5,"responseMsg\":\"{'dbNum':5,'type':2,'tFtpSyncResult':[{\"dbName\":\"BRSCFG_DB\",\"failTblName\":[],\"failTblNum\":0,\"retCode\":0,\"ucpad\":[0,0,0,0]},{\"dbName\":\"IPCONF_DB\",\"failTblName\":[],\"failTblNum\":0,\"retCode\":0,\"ucpad\":[0,0,0,0]},{\"dbName\":\"PLAT_DB\",\"failTblName\":[],\"failTblNum\":0,\"retCode\":0,\"ucpad\":[0,0,0,0]},{\"dbName\":\"OAM_DB\",\"failTblName\":[],\"failTblNum\":0,\"retCode\":0,\"ucpad\":[0,0,0,0]},{\"dbName\":\"SIU_DB\",\"failTblName\":[],\"failTblNum\":0,\"retCode\":0,\"ucpad\":[0,0,0,0]}],"tFtpSyncResult":[{"dbName":"BRSCFG_DB","failTblName":[],"failTblNum":0,"retCode":0,"ucpad":[0,0,0,0]},{"dbName":"IPCONF_DB","failTblName":[],"failTblNum":0,"retCode":0,"ucpad":[0,0,0,0]},{"dbName":"PLAT_DB","failTblName":[],"failTblNum":0,"retCode":0,"ucpad":[0,0,0,0]},{"dbName":"OAM_DB","failTblName":[],"failTblNum":0,"retCode":0,"ucpad":[0,0,0,0]},{"dbName":"SIU_DB","failTblName":[],"failTblNum":0,"retCode":0,"ucpad":[0,0,0,0]}],"ucpad":[0,0,0,0,0,0]}],"saveComleted":false,"syncCompleted":true},"tableCount":100,"tableIndex":100,"zdbSynResponse":{"dbNum":5,"responseMsg\":\"{'dbNum':5,'type':2,'tFtpSyncResult':[{\"dbName\":\"BRSCFG_DB\",\"failTblName\":[],\"failTblNum\":0,\"retCode\":0,\"ucpad\":[0,0,0,0]},{\"dbName\":\"IPCONF_DB\",\"failTblName\":[],\"failTblNum\":0,\"retCode\":0,\"ucpad\":[0,0,0,0]},{\"dbName\":\"PLAT_DB\",\"failTblName\":[],\"failTblNum\":0,\"retCode\":0,\"ucpad\":[0,0,0,0]},{\"dbName\":\"OAM_DB\",\"failTblName\":[],\"failTblNum\":0,\"retCode\":0,\"ucpad\":[0,0,0,0]},{\"dbName\":\"SIU_DB\",\"failTblName\":[],\"failTblNum\":0,\"retCode\":0,\"ucpad\":[0,0,0,0]}],"tFtpSyncResult":[{"dbName":"BRSCFG_DB","failTblName":[],"failTblNum":0,"retCode":0,"ucpad":[0,0,0,0]},{"dbName":"IPCONF_DB","failTblName":[],"failTblNum":0,"retCode":0,"ucpad":[0,0,0,0]},{"dbName":"PLAT_DB","failTblName":[],"failTblNum":0,"retCode":0,"ucpad":[0,0,0,0]},{"dbName":"OAM_DB","failTblName":[],"failTblNum":0,"retCode":0,"ucpad":[0,0,0,0]},{"dbName":"SIU_DB","failTblName":[],"failTblNum":0,"retCode":0,"ucpad":[0,0,0,0]}],"ucpad":[0,0,0,0,0,0]}}