将Map转换为Java 对象

public class MapUtil {

public static Object convert2Object(Class clazz,Map<String,Object[]> map) throws
IntrospectionException, InstantiationException, IllegalAccessException{
BeanInfo bi = Introspector.getBeanInfo(clazz);

Object obj = clazz.newInstance();

PropertyDescriptor[] pds = bi.getPropertyDescriptors();

String pName;
for(PropertyDescriptor pd:pds){
pName = pd.getName();
if(map.containsKey(pName)){
try {
pd.getWriteMethod().invoke(obj, map.get(pName)[0]);
} catch (Exception ex) {
Logger.getLogger(MapUtil.class.getName()).log(Level.SEVERE, null, ex);
}
}
}

return obj;
}
}

Map<String,Object[]> map = request.getParameterMap();

Request req = (Request)MapUtil.convert2Object(Request.class, map);