publicclassJstJobGoodsimplementsSerializable{@JSONField(serialize=false)privateLongid;//ID@JSONField(name="shop_id")privateStringshopId;//店铺编号@JSONField(name="i_id")privateLongiId;//商品款号,商品ID@JSONField(name="shop_i_id")privateStringshopIId;//外部款号@JSONField(name="name")privateStringname;//名称@JSONField(name="sale_price")privateLongsalePrice;//销售价格@JSONField(name="enabled")privateIntegerenabled;//是否启用@JSONField(name="brand_name")privateStringbrandName;//品牌名称@JSONField(name="market_price")privateLongmarketPrice;//市场价格@JSONField(serialize=false)privateintrealSkuQt=0;//真实SKU数量@JSONField(serialize=false)privateStringdigit;//数据MD5（不含id和uptime计算所得）@JSONField(serialize=false)privatejava.util.Dateuptime;//更新时间@JSONField(name="skus")privateList<JstJobGoodsSku>goodsSkuList;@JSONField(serialize=false)privateOptopt=Opt.DO_NOTHING;privatestaticPatternpnv=Pattern.compile("(.+):(.+)");publicstaticSerializeFilter[]serializeFilters=newSerializeFilter[]{newValueFilter(){@OverridepublicObjectprocess(Objectobject,Stringname,Objectvalue){if(objectinstanceofJstJobGoods){JstJobGoodsgoods=(JstJobGoods)object;if(name.equals("sale_price"))returnnumberFormat2((long)value/100);if(name.equals("market_price"))returnnumberFormat2((long)value/100);}elseif(objectinstanceofJstJobGoodsSku){JstJobGoodsSkusku=(JstJobGoodsSku)object;if(name.equals("sale_price"))returnnumberFormat2((long)value/100);if(name.equals("market_price"))returnnumberFormat2((long)value/100);}returnvalue;}},newBeforeFilter(){@OverridepublicvoidwriteBefore(Objectobject){//尺码:22,颜色:黑色if(objectinstanceofJstJobGoods){JstJobGoodsgoods=(JstJobGoods)object;goods.setDigit(goods.getDigit());}elseif(objectinstanceofJstJobGoodsSku){JstJobGoodsSkusku=(JstJobGoodsSku)object;sku.setDigit(sku.getDigit());Stringproperties=sku.getProperties();if(properties==null||properties.trim().length()==0)return;String[]nvs=properties.split(",");StringBufferpropertiesNames=newStringBuffer();StringBufferpropertiesValues=newStringBuffer();for(Stringnv:nvs){Matcherm=pnv.matcher(nv);if(m.find()){propertiesNames.append(m.group(1).trim()).append(',');propertiesValues.append(m.group(2).trim()).append(',');}}wipeEndSeparator(propertiesNames,',');wipeEndSeparator(propertiesValues,',');sku.setPropertiesName(propertiesNames.toString());sku.setPropertiesValue(propertiesValues.toString());}}privatevoidwipeEndSeparator(StringBuffersb,charseparator){if(sb.length()>0&&sb.charAt(sb.length()-1)==separator)sb.deleteCharAt(sb.length()-1);}}};//getterandsetter...

publicstaticDoublenumberFormat2(doublevalue){DecimalFormatdf=newDecimalFormat("0.00");df.setRoundingMode(RoundingMode.DOWN);returnDouble.parseDouble(df.format(value));}Stringreq=JSON.toJSONString(needSynGoodsList,JstJobGoods.serializeFilters,SerializerFeature.PrettyFormat,SerializerFeature.WriteMapNullValue);

[{"brand_name":"","enabled":1,"i_id":1174,"market_price":188.0,"name":"皮豆豆6620真皮战斗短靴大棉","sale_price":158.0,"shop_i_id":"1174_001","shop_id":"10039844","skus":[{"brand_name":"","color":"","enabled":1,"market_price":188.0,"name":"皮豆豆6620真皮战斗短靴大棉","pic":"","pic_big":"","properties_name":"尺码,颜色","properties_value":"21,红色","sale_price":158.0,"shop_sku_id":"v_1572_001","sku_id":"r_1572"},{"brand_name":"","color":"","enabled":1,"market_price":188.0,"name":"皮豆豆6620真皮战斗短靴大棉","pic":"","pic_big":"","properties_name":"尺码,颜色","properties_value":"21,黑色","sale_price":158.0,"shop_sku_id":"v_1573_001","sku_id":"r_1573"}]}]{"code":0,"issuccess":true,"msg":null}

再给个例子：

importcom.alibaba.fastjson.JSON;importcom.alibaba.fastjson.annotation.JSONField;importcom.alibaba.fastjson.serializer.AfterFilter;importcom.alibaba.fastjson.serializer.BeforeFilter;importcom.alibaba.fastjson.serializer.SerializeFilter;importcom.alibaba.fastjson.serializer.ValueFilter;importjava.util.ArrayList;importjava.util.List;publicclassFastJSONTest{publicstaticvoidmain(String[]args){Foof0=newFoo("asan",1100,24);System.out.println("原始的Foo：\n"+f0);Stringjson1=JSON.toJSONString(f0,newValueFilter(){@OverridepublicObjectprocess(Objectobject,Stringname,Objectvalue){switch(name){case"_val":return(Integer)value/10;case"age":return(Integer)value+1;default:returnvalue;}}});System.out.println("第1次序列化后的Foo：\n"+f0);System.out.println(">>>JSON1"+json1);Listlist=newArrayList();list.add(f0);Stringjson2=JSON.toJSONString(f0,newSerializeFilter[]{newBeforeFilter(){@OverridepublicvoidwriteBefore(Objectobject){if(!(objectinstanceofFoo))return;Foof=(Foo)object;f.setName(f.getName()+"++");f.setAge(f.getAge()+100);}},newAfterFilter(){@OverridepublicvoidwriteAfter(Objectobject){//if(!(objectinstanceofFoo))return;//Foof=(Foo)object;//f.setName(f.getName().substring(0,f.getName().length()-2));//f.setAge(f.getAge()-100);}}});System.out.println("第2次序列化后的Foo：\n"+f0);System.out.println(">>>JSON2"+json2);}}classFoo{privateStringname;@JSONField(name="_val",serialize=true)privateintval;privateintage;publicFoo(Stringname,intval,intage){this.name=name;this.val=val;this.age=age;}publicStringgetName(){returnname;}publicvoidsetName(Stringname){this.name=name;}publicintgetVal(){returnval;}publicvoidsetVal(intval){this.val=val;}publicintgetAge(){returnage;}publicvoidsetAge(intage){this.age=age;}@OverridepublicStringtoString(){return"Foo{"+"name='"+name+'\''+",val="+val+",age="+age+'}';}}

原始的Foo：Foo{name='asan',val=1100,age=24}第1次序列化后的Foo：Foo{name='asan',val=1100,age=24}>>>JSON1{"_val":110,"age":25,"name":"asan"}第2次序列化后的Foo：Foo{name='asan++',val=1100,age=124}>>>JSON2{"_val":1100,"age":124,"name":"asan++"}Processfinishedwithexitcode0

https://www.w3cschool.cn/fastjson/fastjson-api.html

fastjson SerializerFeature详解

http://blog.csdn.net/u010246789/article/details/52539576

FastJSON个性化序列化

原文地址：http://blog.51cto.com/lavasoft/2046732