json 测试

参照：
    http://json-lib.sourceforge.net/usage.html

先 json <-> object

package  test.json;

import  java.util.ArrayList;
import  java.util.HashMap;
import  java.util.List;
import  java.util.Map;

import  org.apache.commons.beanutils.PropertyUtils;

import  com.jjm.viewBean.reportTableBean;

import  net.sf.json.JSONArray;
import  net.sf.json.JSONFunction;
import  net.sf.json.JSONObject;

import  junit.framework.TestCase;

public   class  JsonTest  extends  TestCase {

// object to json ************************************************************
     public   void  testList(){
         boolean [] boolArray  =   new   boolean []{ true , false , true };   
            JSONArray jsonArray1  =  JSONArray.fromObject( boolArray );   
            System.out.println( jsonArray1 );   
             //  prints [true,false,true]  
            
            List list  =   new  ArrayList();   
            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"]   
    }
    
     public   void  testMap(){
        Map map  =   new  HashMap();   
         map.put(  " name " ,  " json "  );   
         map.put(  " bool " , Boolean.TRUE );   
         
         map.put(  " int " ,  new  Integer( 1 ) );   
         map.put(  " arr " ,  new  String[]{ " 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[] options = 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];");
     */
      public   void  testBean(){
         JSONObject jsonObject  =  JSONObject.fromObject(  new  JsonBean() );   
         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]; }}  
     }
     
      /**
      * private int row ;
          private int col ;
          private String value ;
      *
       */
      public   void  testBeans(){
         List list  =   new  ArrayList();
         JsonBean2 jb1  =   new  JsonBean2();
         jb1.setCol( 1 );
         jb1.setRow( 1 );
         jb1.setValue( " xx " );
         
         JsonBean2 jb2  =   new  JsonBean2();
         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}]
     }
     
     

//    json  to object ************************************************************     
     
      public   void  testJsonBeanUtil() throws  Exception{
             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 "  ) );  
     }
     
      public   void  testJsonBean(){
             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 "  ), new  Integer( bean.getCol())  );   
            assertEquals( jsonObject.get(  " row "  ),  new  Integer( bean.getRow() ) );   
            assertEquals( jsonObject.get(  " value "  ), bean.getValue() );  
     }
}                                                                                                                                  

json <-> xml
JSON to XML

JSONObject json = new JSONObject( true ); String xml = XMLSerializer.write( json ); JSONObject json = new JSONObject( true ); String xml = XMLSerializer.write( json );	<o class="object" null="true"> <o class="object" null="true">
JSONObject json = JSONObject.fromObject("{\"name\":\"json\",\"bool\":true,\"int\":1}"); String xml = XMLSerializer.write( json ); 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>
JSONArray json = JSONArray.fromObject("[1,2,3]"); String xml = XMLSerializer.write( json ); 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>

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]; }]