Conversion between JSON and bean and between arrays and collections

Jar packages dependent on JSON can be downloaded to jar114.com.
1. commons-beanutils.jar
2. commons-collections-3.2.1.jar
3. commons-lang-2.5.jar
4. commons-logging-1.1.1.jar
5. ezmorph-1.0.6.jar
6. json-lib-2.2.3-jdk15.jar


// General Usage
Jsonarray = jsonarray. fromobject (getlist ());
System. Out. println (jsonarray );

LConvert arrays and collections

Boolean [] boolarray = new Boolean [] {true, false, true };

Jsonarray = jsonarray. fromobject (boolarray );

System. Out. println (jsonarray );

Output: [true, false, true]

List list = new arraylist ();

List. Add ("first ");

List. Add ("second ");

Jsonarray = jsonarray. fromobject (list );

System. Out. println (jsonarray );

Output: ["first", "second"]

Jsonarray jsonarray3 = jsonarray. fromobject ("['json', 'is', 'easy']");

System. Out. println (jsonarray3 );

Output: ["JSON", "is", "'easy'"]

LConversion object

Convert 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 );

Output: ["name": "JSON", "bool": True, "int", 1, "arr": ["A", "B"], "func": function (I) {return this. arr [I];}]

Convert Bean

Mybean. Java

Public class mybean {

Private string name = "JSON ";

Private int pojoid = 1;

Private string func1 = "function (I) {return this. Options [I]}";

Private jsonfunction func2 = new jsonfunction (New String [] {"I"}, "return this. Options [I];");

// The get and set methods are as follows:

}

Mybean bean = new mybean ();

Jsonobject = jsonobject. fromobject (bean );

System. Out. println (jsonobject );

Output:

{"Func1": function (I) {return this. options [I]}, "pojoid": 1, "name": "JSON", "func2": function (I) {return this. options [I];}

From JSON to beans

// Convert to dynamic Bean

String myjson = "{name = \" JSON \ ", bool: True, INT: 1, double: 2.2, function: function (a) {return a ;}, array: [1, 2]} ";

Jsonobject json1 = jsonobject. fromstring (myjson );

Object bean1 = jsonobject. tobean (json1 );

XML generated by JSON

Jsonobject JSON = new jsonobject (true );

Xmlserializer = new xmlserializer ();

String xml = xmlserializer. Write (JSON );

System. Out. println ("XML:" + XML );

Output: XML: <? XML version = "1.0" encoding = "UTF-8"?>

<O null = "true"/>

Jsonobject json2 = jsonobject. fromobject ("{\" Name \ ": \" JSON \ ", \" bool \ ": True, \" int \ ": 1 }");

String xml2 = xmlserializer. Write (json2 );

System. Out. println ("xml2:" + xml2 );

Output: xml2: <? XML version = "1.0" encoding = "UTF-8"?>

<O> <bool type = "Boolean"> true </bool> <int type = "Number"> 1 </int> <name type = "string"> JSON </ name> </o>

Jsonarray json3 = jsonarray. fromobject ("[1, 2, 3]");

String xml3 = xmlserializer. Write (json3 );

System. Out. println ("xml3:" + xml3 );

Output: xml3: <? XML version = "1.0" encoding = "UTF-8"?>

<A> <E type = "Number"> 1 </E> <E type = "Number"> 2 </E> <E type = "Number"> 3 </ e> </a>

Http://json-lib.sourceforge.net/usage.html from:

From JSON to beans
String JSON = "{name = \" JSON \ ", bool: True, INT: 1, double: 2.2, FUNC: function (a) {return a ;}, array: [1, 2]} ";

Jsonobject = jsonobject. fromobject (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 "));

Assertions. assertlistequals (expected, (list) propertyutils. getproperty (bean, "array "));

Convert to Bean:
String JSON = "{bool: True, integer: 1, string: \" JSON \"}";

Jsonobject = jsonobject. fromobject (JSON );

Beana bean = (beana) jsonobject. tobean (jsonobject, beana. Class );

Assertequals (jsonobject. Get ("bool"), Boolean. valueof (bean. isbool ()));

Assertequals (jsonobject. Get ("integer"), new INTEGER (bean. getinteger ()));

Assertequals (jsonobject. Get ("string"), Bean. getstring ());