Encapsulating a JavaBean as a JSON object by reflection

Package Maskedmen.uitils.classparameterstojson;

Import Java.lang.reflect.Field;

Import Java.lang.reflect.Method;

/**

* @author Maskedmen

* Convert a class to a JSON object, that is, the properties of the encapsulated class

* Because this tool class largely destroys the encapsulation characteristics of a class

* Therefore, please be careful when using, and make appropriate changes if necessary.

*/

public class Classparameterstojson {

public static void Main (string[] args) {

TestClass TestClass = new TestClass ("Potato", "watermelon");

try {

Classparameterstojson (TestClass);

} catch (Exception e) {

E.printstacktrace ();

}

}

public static void Classparameterstojson (Object object) throws exception{

Class<?> clazz = Object.getclass ();//Get Class object

String paramname=null;//Parameter name

String paramtype=null;//Parameter type

String MethodName = null;//Method Name

Method Method=null;

Object Value=null;

int count=0;//record number of cycles

int length=0;

StringBuffer JSONBF = new StringBuffer ();

StringBuffer PARAMBF = new StringBuffer ();

field[] Parameters = Clazz.getdeclaredfields ();//Gets the parameter array of the class

length = Parameters.length;

Jsonbf.append ("{");

for (Field parameter:parameters) {//foreach loop

ParamName = Parameter.getname ();//Get parameter name

Paramtype = Parameter.gettype (). toString ();//Get parameter type

if (!paramtype.equals ("boolean")) {//Out of non-boolean type

if (count>=1&&count<length) {

Jsonbf.append (",");

}

Jsonbf.append ("\" "+paramname+" \ "");

Capitalize the first letter and connect the Get

MethodName = Parambf.append ("Get"). Append (paramname.substring (0, 1). toUpperCase ())

. Append (paramname.substring (1)). ToString ();

method = Clazz.getdeclaredmethod (MethodName, New class[]{});//Get corresponding methods according to the method name

if (!method.isaccessible ()) {//If private property

Method.setaccessible (TRUE);//set to visible

}

Value = Method.invoke (object, New object[]{});//executes the corresponding GET method

Value=value.tostring ();

Jsonbf.append (":");

Jsonbf.append ("\" "+value+" \ "");

count++;

Parambf.delete (0, Parambf.length ());//Empty every cycle

}else {

System.out.println ("Boolean type does not handle");

}

}

Jsonbf.append ("}");

System.out.println ("JSON string" +jsonbf.tostring ());

}

}

Test class

Class testclass{

Private String potato;//Potatoes

Private String watermelon;//Watermelon

Public TestClass () {

}

Public TestClass (string potato, string watermelon) {

Super ();

This.potato = potato;

This.watermelon = watermelon;

}

Public String Getpotato () {

return potato;

}

public void Setpotato (String potato) {

This.potato = potato;

}

Public String Getwatermelon () {

return watermelon;

}

public void Setwatermelon (String watermelon) {

This.watermelon = watermelon;

}

}

SOURCE Download Link Http://pan.baidu.com/s/1geAGaLP

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Encapsulating a JavaBean as a JSON object by reflection