Java Bean Conversion Map

/**

*

* @Title: Convertmap

* @Description: Using generic Map-to-bean

* First, the type of the incoming entity bean is instantiated by reflection to get all the methods of the bean.

* Traverse all key of map, capitalize key first letter, prefix add set, get method name

* Then traverse all methods of the bean, if there is a method name and map can be spliced method name consistent,

* Insert the value of map into the bean (provided the type must be consistent, otherwise an error)

* @param @param <T>

* @param @param map

* @param @param TC

* @param @return

* @param @throws IllegalArgumentException

* @param @throws Illegalaccessexception

* @param @throws InvocationTargetException

* @param @throws SecurityException

* @param @throws Nosuchmethodexception

* @param @throws instantiationexception Setting parameters

* @return T return type

* @since 1.0.0

* @author Huyidong

* @throws

*/

public static <T> T convertmap (map map, class<t> tc) throws IllegalArgumentException, Illegalaccessexception , InvocationTargetException, SecurityException, Nosuchmethodexception, instantiationexception{

T t = tc.newinstance ();

Iterator It=map.entryset (). Iterator ();

Method [] methods=tc.getdeclaredmethods ();

while (It.hasnext ()) {

Map.entry entry= (Map.entry) it.next ();

String methodname= "Set" +beantomap.fristtouppercase (Entry.getkey (). toString ());

for (Method method:methods) {

if (Method.getname (). Equals (MethodName)) {

Object Value=entry.getvalue ();

Method.invoke (t, value);

Break

}

}

}

return t;

}

/**

*

* @Title: Fristtouppercase

* @Description: Capitalize the first letter

* @param @param str

* @param @return Set parameters

* @return String return type

* @since 1.0.0

* @author Huyidong

* @throws

*/

public static string Fristtouppercase (String str) {

Str=str.substring (0,1). toUpperCase () +str.substring (1,str.length ());

return str;

}

/**

*

* @Title: Fristtouppercase

* @Description: First Letter lowercase

* @param @param str

* @param @return Set parameters

* @return String return type

* @since 1.0.0

* @author Huyidong

* @throws

*/

public static string Fristtolowercase (String str) {

Str=str.substring (0,1). toLowerCase () +str.substring (1,str.length ());

return str;

}

/**

*

* @Title: Convertbean

* @Description: Entity Bean turns into map

* Traverse all methods of an object

* Gets the method of get in the entity bean, returns the value using the reflection Get method, if the value is not empty, is the value of map,

* Then take the Get method to remove the get part, the first letter to lowercase, the key for the map

* @param @param obj

* @param @return

* @param @throws IllegalArgumentException

* @param @throws Illegalaccessexception

* @param @throws invocationtargetexception Setting parameters

* @return Map return type

* @since 1.0.0

* @author Huyidong

* @throws

*/

public static Map Convertbean (Object obj) throws IllegalArgumentException, Illegalaccessexception, invocationtargetexception{

Class Cla=obj.getclass ();

Method [] methods=cla.getdeclaredmethods ();

Map map =new HashMap ();

for (Method method:methods) {

if (Method.getname (). StartsWith ("get")) {

String name=method.getname (). substring (3,method.getname (). Length ());

String key =beantomap.fristtolowercase (name);

Object value = Method.invoke (obj);

if (null!=value) Map.put (key, value);

}

}

return map;

}

Java Bean Conversion Map