java-读取javabean类的set方法并设值

时间:2023-03-09 06:50:40
java-读取javabean类的set方法并设值
    /**
* 新反射实例化模型
* @param filenamepath
* @return
*/
public static Object newIntence(String filenamepath) {
Object t = null;
try {
Class<?> cls = Class.forName(filenamepath);
t = cls.newInstance();
} catch (Exception e) {
e.printStackTrace();
}
return t;
} @SuppressWarnings("unchecked")
public static <T> T convertObj(Map<String,Object> map, Class<T> cls) {
Object obj = ModelUtils.createInstance(cls);
if( map != null ) {
convertObj(JSONObject.fromObject(map), obj);
}
return (T)obj;
} public static void convertObj(JSONObject jsonObj, Object obj)
{
PropertyDescriptor pds[] = BeanUtils.getPropertyDescriptors(obj.getClass());
for(int i = 0; i < pds.length; i++)
{
PropertyDescriptor pd = pds[i];
if(jsonObj.containsKey(pd.getName())){
Method method = pd.getWriteMethod();
String parameterTypeName = (method.getParameterTypes()[0].getName());
Object ob = pd.getName();
//System.out.println(method.getName()+":"+ob+":"+jsonObj.get(ob));
invokeSetMethod(obj, method, converValueType(parameterTypeName, jsonObj.get(ob)));
}
} } public static void invokeSetMethod(Object object, Method method, Object value)
{
try
{
method.invoke(object, new Object[] {
value
});
}
catch(IllegalAccessException ex)
{
throw new IllegalArgumentException(ex.getMessage());
}
catch(InvocationTargetException ex)
{
throw new IllegalArgumentException(ex.getMessage());
}
catch(Exception ex)
{
throw new IllegalArgumentException(ex.getMessage());
}
} /**
* 数据根据类型转化成响应的数据
* @param methodType
* @param ob
* @return
*/
public static Object converValueType(String methodType,Object ob){
if( ob == null )return null;
if( StringUtils.isBlank(methodType)) return ob.toString();
if( "java.math.BigDecimal".equalsIgnoreCase(methodType)){
try {
return new BigDecimal(ob.toString());
} catch (Exception e) {
e.printStackTrace();
}
}else if( "java.lang.String".equalsIgnoreCase(methodType)){
try {
return ob.toString();
} catch (Exception e) {
e.printStackTrace();
} }else if( "java.lang.Integer".equalsIgnoreCase(methodType)){
try {
return Integer.parseInt(ob.toString());
} catch (Exception e) {
e.printStackTrace();
}
}else if( "java.util.Date".equalsIgnoreCase(methodType)){
try {
return DateTimeUtils.str2Date(ob.toString(), DateTimeUtils.FORMAT_yyyy_MM_dd);
} catch (Exception e) {
e.printStackTrace();
}
}else if( "long".equalsIgnoreCase(methodType)){
try {
return Long.parseLong(ob.toString());
} catch (Exception e) {
e.printStackTrace();
}
}else{
logger.debug("ConverUtils converValueType is fail .type["+methodType+"],value["+ob+"]");
}
return null;
}