JSON与JAVA数据的转换
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关键字: json java
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{"lastModifiedTime":1319103651000,"id":"AFB763760EBD1E73E040E00A95396A97","blInCache":true}
{"blInCache":true,"id":"AFB763760EBD1E73E040E00A95396A97","lastModifiedTime":1319103651000}
上面是map.中间是map转化的json,下面是been转化的json
下载地址:http://json-lib.sourceforge.net/
还要需要的第3方包:
org.apache.commons(3.2以上版本)
org.apache.oro
net.sf.ezmorph(ezmorph-1.0.4.jar)
nu.xom
1、List
- boolean[] boolArray =newboolean[]{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"]
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"]
2、Map
- 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}
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}
3、BEAN
- /**
- * 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];");
- */
- 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]; }}
/*** Bean.javaprivate 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];");*/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]; }}
4、BEANS
- /**
- * private int row ;
- private int col ;
- private String value ;
- *
- */
- 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}]
/*** private int row ;private int col ;private String value ;**/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}]
5、String to bean
- 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" ) );
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" ) );
- 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() );
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() );
6 json to xml
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]; }]
出自http://falchion.javaeye.com/
转换后的对象Object是一个MorphDynaBean的动态JavaBean,通过PropertyUtils可以获得指定的属性的值。
运行后结果如下:
- json数据与JAVA数据的转换
- json数据与JAVA数据的转换
- json数据与JAVA数据的转换
- json数据与JAVA数据的转换
- json数据与JAVA数据的转换
- json数据与JAVA数据的转换
- JSON与JAVA数据的转换
- JSON与JAVA数据的转换
- JSON与JAVA数据的转换
- JSON与JAVA数据的转换
- JSON与JAVA数据的转换
- JSON与JAVA数据的转换
- JSON与JAVA数据的转换
- JSON与JAVA数据的转换【转】
- 关于JSON与JAVA数据的转换
- JSON与JAVA数据的转换
- JSON与JAVA数据的转换
- JSON与JAVA数据的转换
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