Java method for reading JSON data

Source: Internet
Author: User

JSON-lib is a Java class package used to convert beans, maps, and XML into JSON and convert JSON back to bean and dynabean.

: Http://json-lib.sourceforge.net/
The third-party package is also required:
Org. Apache. commons (version 3.2 or later)
Org. Apache. oro
Net. SF. ezmorph (ezmorph-1.0.4.jar)
Nu. XOM

Import net. SF. JSON. jsonarray;
Import net. SF. JSON. jsonobject;

1. List
Java code
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"]

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
Java code
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
Java code
/**
* 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. 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. 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. 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
Java code
/**
* 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
Java code
String JSON = "{name =/" JSON/", bool: True, INT: 1, double: 2.2, FUNC: function (a) {return a ;}, array: [1, 2]} ";
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. 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 code
String JSON = "{/" value/":/" XX/",/" Row/": 1,/" COL/": 1 }";
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. 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];}]

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