反射避开field.setAccessible(true)； field.set(t, lineArray[i])； 赋值

Reflection should not be used to increase accessibility of classes, methods, or fields

public  T toJavaObject(String line) throws Exception {
    // 数据组文件没有标题行 单独处理
    if (StringUtils.isBlank(line)) {
        return null;
    } else {
        String[] lineArray = line.split(SymbolConstants.COMMA, -1);
        Class clazz = getFileType().findClass();
        T t = clazz.newInstance();
        Field[] fields = clazz.getDeclaredFields();
        int i = 0;
        for (Field field : fields) {
            // field.setAccessible(true);
            // field.set(t, lineArray[i]);
            setBodyValueByField(t, field, lineArray[i]);
            i++;
        }
        return t;
    }
}

private void setBodyValueByField(Object t, Field field, String stringValue) {
    try {
        Class clazz = t.getClass();
        PropertyDescriptor pd = new PropertyDescriptor(field.getName(), clazz);
        Method method = pd.getWriteMethod();
        String type = field.getGenericType()
            .toString();
        if (StringUtil.isBlank(stringValue)) {
            return;
        }
        switch (type) {
            case "class java.lang.String":
                method.invoke(t, stringValue);
                break;
            case "class java.lang.Integer":
                method.invoke(t, Double.valueOf(stringValue)
                    .intValue());
                break;
            case "class java.lang.Long":
                method.invoke(t, Double.valueOf(stringValue)
                    .longValue());
                break;
            case "class java.lang.Double":
                method.invoke(t, Double.valueOf(stringValue));
                break;
            case "class java.lang.Float":
                method.invoke(t, Double.valueOf(stringValue)
                    .floatValue());
                break;
            case "class java.lang.Character":
                method.invoke(t, stringValue.toCharArray()[0]);
                break;
            case "class java.math.BigDecimal":
                method.invoke(t, new BigDecimal(stringValue));
                break;
            case "class java.util.Date":
                method.invoke(t, DateUtil.getDate(stringValue, DateUtil.DATE_FORMAT_2));
                break;
            default:
                method.invoke(t, (Object) null);
                break;
        }
    } catch (Exception e) {
        log.error("{}属性方法执行异常", field.getName(), e);
        throw new HsjryBizException(EnumOpChannelError.BIZ_FAILED_ERROR.getCode(), "属性方法执行异常");
    }
}