java不同对象属性赋值

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将JSONObject中的值赋值给类中和key同名的属性

public Object addPropertyVale(JSONObject data, Object entity)            throws IllegalArgumentException, IllegalAccessException {        Field fields[] = entity.getClass().getDeclaredFields();        for (Map.Entry<String, Object> entry : data.entrySet()) {            for (int i = 0; i < fields.length; i++) {                fields[i].setAccessible(true);                if (fields[i].getName().equals(entry.getKey())) {// json字段key和对象实体属性名相同                    // 将value赋值给属性                    if (fields[i].getGenericType().getTypeName().equals("java.lang.String")) {                        fields[i].set(entity, data.getString(entry.getKey()));                    }                    if (fields[i].getGenericType().getTypeName().equals("java.lang.Integer")) {                        fields[i].set(entity, data.getInteger(entry.getKey()));                    }                    if (fields[i].getGenericType().getTypeName().equals("java.lang.Long")) {                        fields[i].set(entity, data.getLong(entry.getKey()));                    }                    if (fields[i].getGenericType().getTypeName().equals("int")) {                        fields[i].set(entity, data.getInteger(entry.getKey()));                    }                    if (fields[i].getGenericType().getTypeName().equals("long")) {                        fields[i].set(entity, data.getLong(entry.getKey()));                    }                    if (fields[i].getGenericType().getTypeName().equals("java.lang.Boolean")) {                        fields[i].set(entity, data.getBoolean(entry.getKey()));                    }                }            }        }        return entity;    }

传入两个类，将editEntity类中和entity类中同名属性赋值给另一个类

    public Object addPropertyVale(Object editEntity, Object entity) {        Field fieldEdit[] = editEntity.getClass().getDeclaredFields();        Field field[] = entity.getClass().getDeclaredFields();        for (int i = 0; i < fieldEdit.length; i++) {            fieldEdit[i].setAccessible(true);            for (int j = 0; j < field.length; j++) {                field[j].setAccessible(true);                if (fieldEdit[i].getName().equals(field[j].getName()) && field[i].getName() != "id") {// id不能修改                    try {                        field[j].set(entity, fieldEdit[i].get(editEntity));                    } catch (IllegalArgumentException | IllegalAccessException e) {                        e.printStackTrace();                    }                }            }        }        return entity;    }

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