细细品味webjson-lib类库使用手册

——Json- 类库使用手册虾皮20125211、JsonLib简 2、JsonLib使 准备工 处理 处理 处理 处理 处理 处理 处理 处理 处理 处理 对象 对象 3、日期转 三种解决方 封装函数方 4、参考文 1、JsonLib简介arrays和XML等）JSON互相转换的功能。java.lang.Number,byte,short,int,long,float,2、JsonLib使用【测试实体——Studentpackagepackagepublicclass{privateStringuserName;privateString;privateintpublicpublicStudent()}publicStudent(StringuserName,this.userName=,intage) this.age=}publicStringgetUserName()return}publicvoidsetUserName(StringuserName)this.userName=}publicString () }publicvoid;)=}publicintgetAge()return}publicvoidsetAge(intage)this.age=}}【测试实体——Classpackagepackageimportimportpublicclass{privateStringprivateDateprivateList<Student>publicClass()}}publicClass(Stringname,Datedate,List<Student>students)=name;this.date=date;this.students=students;}publicStringgetName()return}publicvoidsetName(Stringname)=}publicDategetDate()return}publicvoidsetDate(Datedate)this.date=}publicList<Student>getStudents()return}publicvoidsetStudents(List<Student>students)this.students=}}处理【示例代码packagepackageimportjava.util.ArrayList;importjava.util.List;importorg.junit.Test;publicclass{publicpublicvoidarray2json()int[]intArray=newJSONArrayjsonArray1=System.out.println("int[]intArray");boolean[]boolArray=newSystem.out.println("boolean[]JSONArrayjsonArray2=JSONArray.fromObject(boolArray);int[][]int2Array=newJSONArrayjsonArray3=JSONArray.fromObject(int2Array);System.out.println("int[][]int2Array");float[]floatArray=newJSONArrayjsonArray4=JSONArray.fromObject(floatArray);System.out.println("float[]floatArray");String[]strArray=newJSONArrayjsonArray5=System.out.println("String[]strArray");}}【运行结果int[]int[]int[][]int2Arrayfloat[]String[] 处理【示例代码packagepackageimportjava.util.ArrayList;importjava.util.List;importorg.junit.Test;publicclass{publiccollections2json(){List=newArrayList();JSONArrayjsonArray1=JSONArray.fromObject(list1);System.out.println("Listlist1");List<Studentlist2newArrayList<Student>();list2.add(newStudent("xiapi1","男",10));JSONArrayjsonArray2=JSONArray.fromObject(list2);System.out.println("List<Student>list2");}【运行结果ListListList<Student> 处理【示例代码packagepackageimportimportimportimportpublicclass{publicvoidMapmap1=newHashMap();map1.put("int",newInteger(1));map1.put("func","function(i){returnthis.arr[i];}");JSONObjectjsonObject1=JSONObject.fromObject(map1);System.out.println("Mapmap1");Map<String,Student>map2newHashMap<String,Student>();map2.put("k1",newStudent("xiapi1","男",10));map2.put("k2"newStudent("xiapi2","女map2.put("k3",newStudent("xiapi3","男",13));JSONObjectjsonObject2JSONObject.fromObject(map2);System.out.println("Map<String,Student>map2");}}【运行结果MapMapthis.arr[i];},"bool":true} 处理【示例代码packagepackageimportjava.util.ArrayList;importjava.util.Date;importimportnet.sf.json.JSON;importnet.sf.json.JSONArray;importimportnet.sf.json.util.CycleDetectionStrategy;importorg.junit.Test;publicclass{publicvoidStudents1=newStudent("xiapi","男",22);JSONObjectjsonObject1JSONObject.fromObject(s1);System.out.println("Students1");Classc1=newClass();c1.setDate(newDate());JsonConfigconfig=newnewJsonValueProcessor()//参数1：属性 publicObjectprocessObjectValue(Stringarg0,ObjectJsonConfigarg2)SimpleDateFormatsdf=newSimpleDateFormat("yyyy‐MM‐ddDated=(Date)returnreturn}return}List<StudentstudentsnewArrayList<Student>();students.add(newStudent("xiapi1","男",10));students.add(newStudent("xiapi2","女",11));students.add(newStudent("xiapi3","男",12));JSONObjectjsonObject2=JSONObject.fromObject(c1,config);System.out.println("Classc1");}}【运行结果StudentStudent Class处理【示例代码packagepackageimportimportimportpublicclass{publicvoidStringString<name XMLSerializerx=newXMLSerializer();JSONjson=x.read(s);}}【运行结果2012‐5‐212012‐5‐2119:01:03net.sf.json.xml.XMLSerializer信息Usingdefaulttype 处理【示例代码packagepackageimportimportnet.sf.json.JSONArray;importnet.sf.json.JsonConfig;importpublicclass{publicvoidStringjson1=JSONArrayjsonArray1=(JSONArray)JSONSerializer.toJSON(json1);JsonConfigjsonConfig=newJsonConfig();Object[]expected=newObject[]{"first","second"Stringjson2JSONArrayjsonArray2=Object[][]output2=(Object[][])JSONArray.toArray(jsonArray2);}}【运行结果21处理【示例代码packagepackageimportimportnet.sf.json.JSONArray;importorg.junit.Test;publicclass{publicvoidStringjson1=JSONArrayjsonArray1=(JSONArray)JSONSerializer.toJSON(json1);Listoutput1=(List)JSONSerializer.toJava(jsonArray1);StringStringjson2 JSONArrayjsonArray2=JSONArray.fromObject(json2);List<Student>output2=JSONArray.toList(jsonArray2,Student.class);}}【运行结果处理【示例代码packagepackageimportjava.util.Date;importjava.util.Map;importimportnet.sf.ezmorph.MorpherRegistry;importnet.sf.ezmorph.bean.BeanMorpher;importnet.sf.json.JSONObject;importnet.sf.json.JSONSerializer;importnet.sf.json.util.JSONUtils;importpublicclassJsonLibpublicvoidStringjson1JSONObjectjsonObject1=JSONObject.fromObject(json1);MaptypeMap1=newHashMap();typeMap1.put("int",Integer.class);typeMap1.put("name",String.class);Mapoutput1=Stringjson2 JSONObjectjsonObject2=JSONObject.fromObject(json2);Map<String,Class<?>>typeMap2=newHashMap<String,Class<?>>();Map<String,Student>output2=(Map<String,Student>) MorpherRegistrymorpherRegistry=JSONUtils.getMorpherRegistry();MorpherdynaMorpher=newBeanMorpher(Student.class,}}【运行结果42 =男age=10]处理【示例代码packagepackageimportimportnet.sf.ezmorph.MorpherRegistry;importnet.sf.ezmorph.bean.BeanMorpher;importnet.sf.json.JSONObject;importimportimportpublicclass{publicvoidStringjson1="{'age':22,' JSONObjectjsonObject1=JSONObject.fromObject(json1);Studentoutput1=(Student)JSONObject.toBean(jsonObject1,Stringjson2="{'date':'2012‐05‐21'name':'计算机应用1班', String[]DATE_FORMAT={"yyyy‐MM‐ddHH:mm:ss"};JSONObjectjsonObject2=JSONObject.fromObject(json2);MaptypeMap1=newHashMap();typeMap1.put("date",Date.class);Classoutput2=}}【运行结果MonMay2113:03:11CST处理【示例代码packagepackageimportnet.sf.json.JSONObject;importorg.junit.Test;publicclass{publicvoidStringjson1="{'age':22,' JSONObjectjsonObj=JSONObject.fromObject(json1);XMLSerializerx=newXMLSerializer();Stringxml=x.write(jsonObj);}}【运行结果<?xmlversion="1.0"<o><agetype="number">22</age>< 对象【示例代码packagepackageimportimportpublicclass{publicvoidtestJSONArray()JSONArrayjsonArray=newJSONArray();}}【运行结果对象【示例代码packagepackageimportimportimportimportpublicclass{publicvoidtestJSONObject()JSONObjectjsonObjectnewJSONObject();jsonObject.put("name","xiapi");jsonObject.put("age",20); ","男");JSONArrayjsonArraynewJSONArray();}}【运行结果 3、日期json-lib转换出来的日期类三种解决方案使用jsonConfig的setExcludessetExcludespublicpublicvoidEmpemp=new}滤该字段，返回false表示可以转换该字段。publicpublicvoidEmpemp=newconfig.setJsonPropertyFilter(newPropertyFilter()publicbooleanapply(Objectarg0,Stringarg1,Objectreturntrue;}return}}jsonConfigregisterJsonValueProcessor()进行属性转换设置。publicpublicvoidEmpemp=new 解决json最头疼的问题死循//jsonconfig.registerJsonValueProcessor(Date.class,newJsonValueProcessor()//参数1：属性 参数2：json对象的 publicObjectprocessObjectValue(Stringarg0,Objectarg1,JsonConfig{SimpleDateFormatsdf=newSimpleDateFormat("yyyy-MM-ddHH:mm:ss");Dated=(Date)arg1;return}{return}}{"birthday":"2010-08-{"birthday":"2010-08- 00:00:00","dept":{"depid":1,"depna