对象与JSON之间的转换

boolean[] boolArray =newboolean[]{true,false,true};                  JSONArray jsonArray1 = JSONArray.fromObject( boolArray );                  System.out.println( jsonArray1 );                 // prints [true,false,true]                List list =newArrayList();                  list.add("first");                  list.add("second");                  JSONArray jsonArray2 = JSONArray.fromObject( list );                  System.out.println( jsonArray2 );                 // prints ["first","second"]                JSONArray jsonArray3 = JSONArray.fromObject("['json','is','easy']");                  System.out.println( jsonArray3 );                 // prints ["json","is","easy"]     
 

Map map =newHashMap();                map.put("name","json");                map.put("bool", Boolean.TRUE );                map.put("int",newInteger(1) );                map.put("arr",newString[]{"a","b"} );                map.put("func","function(i){ return this.arr[i]; }");                JSONObject json = JSONObject.fromObject( map );                System.out.println( json );               //{"func":function(i){ return this.arr[i]; },"arr":["a","b"],"int":1,"name":"json","bool":true}  
 

/**      * Bean.java         private String name = "json";            private int pojoId = 1;            private char[] ptions = new char[]{'a','f'};            private String func1 = "function(i){ return this.options[i]; }";            private JSONFunction func2 = new JSONFunction(new String[]{"i"},"return this.options[i];");     */  JSONObject jsonObject = JSONObject.fromObject(newJsonBean() );      System.out.println( jsonObject );      //{"func1":function(i){ return this.options[i]; },"pojoId":1,"name":"json","options":["a","f"],"func2":function(i){ return this.options[i]; }}    
 

Java代码/**       * private int row ;           private int col ;           private String value ;       *       */  List list =newArrayList();             JsonBean2 jb1 =newJsonBean2();             jb1.setCol(1);             jb1.setRow(1);             jb1.setValue("xx");             JsonBean2 jb2 =newJsonBean2();             jb2.setCol(2);             jb2.setRow(2);             jb2.setValue("");             list.add(jb1);             list.add(jb2);             JSONArray ja = JSONArray.fromObject(list);             System.out.println( ja.toString() );            //[{"value":"xx","row":1,"col":1},{"value":"","row":2,"col":2}]  
 

String json ="{name=\"json\",bool:true,int:1,double:2.2,func:function(a){ return a; },array:[1,2]}";      JSONObject jsonObject = JSONObject.fromString(json);      Object bean = JSONObject.toBean( jsonObject );      assertEquals( jsonObject.get("name"), PropertyUtils.getProperty( bean,"name") );         assertEquals( jsonObject.get("bool"), PropertyUtils.getProperty( bean,"bool") );         assertEquals( jsonObject.get("int"), PropertyUtils.getProperty( bean,"int") );          assertEquals( jsonObject.get("double"), PropertyUtils.getProperty( bean,"double") );          assertEquals( jsonObject.get("func"), PropertyUtils.getProperty( bean,"func") );         List expected = JSONArray.toList( jsonObject.getJSONArray("array") );         assertEquals( expected, (List) PropertyUtils.getProperty( bean,"array") );    Java代码String json ="{\"value\":\"xx\",\"row\":1,\"col\":1}";      JSONObject jsonObject = JSONObject.fromString(json);      JsonBean2 bean = (JsonBean2) JSONObject.toBean( jsonObject, JsonBean2.class);          assertEquals( jsonObject.get("col"),newInteger( bean.getCol())   );            assertEquals( jsonObject.get("row"),newInteger( bean.getRow() ) );            assertEquals( jsonObject.get("value"), bean.getValue() );    
 

1)JSONObject json = new JSONObject( true );String xml = XMLSerializer.write( json );<o class="object" null="true">2)JSONObject json = JSONObject.fromObject("{\"name\":\"json\",\"bool\":true,\"int\":1}");String xml = XMLSerializer.write( json );<o class="object"><name type="string">json</name><bool type="boolean">true</bool><int type="number">1</int></o><o class="object"><name type="string">json</name><bool type="boolean">true</bool><int type="number">1</int></o>3)JSONArray json = JSONArray.fromObject("[1,2,3]");String xml = XMLSerializer.write( json );<a class="array"><e type="number">1</e><e type="number">2</e><e type="number">3</e></a>7 、xml to json<a class="array"><e type="function" params="i,j">return matrix[i][j];</e></a><a class="array"><e type="function" params="i,j">return matrix[i][j];</e></a>JSONArray json = (JSONArray) XMLSerializer.read( xml );System.out.println( json );// prints [function(i,j){ return matrix[i][j]; }]
 

文章来源: blog.csdn.net，作者：隔壁老瓦，版权归原作者所有，如需转载，请联系作者。

原文链接：blog.csdn.net/wxb880114/article/details/84282842