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Hibernate @Transactional
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Stack Overflow用户
提问于 2018-07-24 02:36:41
回答 1查看 97关注 0票数 0

我是hibernate的新手,如何在spring中使用@Transactional,

这是inf类,

@Transactional(propagation = Propagation.REQUIRES_NEW, rollbackForClassName = {
"com.framework.exceptions.ApplicationException" })
public ServiceObject create(ServiceObject dtObject) throws ApplicationException;

@Transactional(propagation = Propagation.REQUIRES_NEW, rollbackForClassName = {
        "com.framework.exceptions.ApplicationException" })
public ServiceObject update(ServiceObject dtObject) throws ApplicationException;

实现类,

public ServiceObject read(ServiceObject dtObject) throws ApplicationException {
    try {

            if (dtObject.getDataObject() != null) {
                CustomersEntity customersEntity = (CustomersEntity) dtObject.getDataObject();
                String captchaStr = customersEntity.getCaptchaString();
                if (captchaStr != null && !captchaStr.isEmpty()) {
                    customersEntity.setCaptchaType(captchaStr.split(",", 2)[0]); 
                    customersEntity.setCaptcha(captchaStr.split(",", 2)[1].getBytes());
                    customersEntity.setCaptchaString(null);
                    customersEntity.setUpdatedOn(DateUtil.getISTTodayDate());
                    if(customersEntity.getResult() == null || customersEntity.getResult().isEmpty()){
                        customersEntity.setWip((byte) 0); // if user not submit the captcha value
                    }
                    dtObject.setDataObject(customersEntity);
                    update(dtObject);

                    CustomersEntity customersEntity2 = (CustomersEntity) dtObject.getDataObject();
                    customersEntity2.setUserId(customersEntity2.getSolvedBy());
                    customersEntity2.setUpdatedOn(DateUtil.getISTTodayDate());
                    dtObject.setDataObject(customersEntity2);
                    CustomersEntity customersEntity3 = getCaptcha(dtObject);
                    if (customersEntity3 != null) {
                        byte[] imgByte = customersEntity3.getCaptcha();
                        customersEntity3
                                .setCaptchaString(customersEntity3.getCaptchaType() + "," + new String(imgByte));
                        customersEntity3.setWip((byte) 1);
                        customersEntity3.setUpdatedOn(DateUtil.getISTTodayDate());
                        dtObject.setDataObject(customersEntity3);
                        update(dtObject);
                    } else {
                        dtObject.setMessage("No captcha, please try again after some time.");
                        dtObject.setSuccess(false);
                    }
                } else {
                    dtObject.setMessage("Pls try again.");
                    dtObject.setSuccess(false);
                }
            }

    } catch (Exception e) {
        dtObject.setSuccess(false);
        throw new ApplicationException(e.getMessage(), e);
    }
    return dtObject;
}

@Override
public ServiceObject update(ServiceObject dtObject) throws ApplicationException {
    try {
            customersDao.update((CustomersEntity) dtObject.getDataObject());
            dtObject.setMessage("Record updated successfully.");
            dtObject.setSuccess(true);

    } catch (Exception e) {
        dtObject.setSuccess(false);
        throw new ApplicationException(e.getMessage(), e);
    }
    return dtObject;
}

调用read(...)时方法,内部调用update(...)方法两次,但结果将是在具有不同行的单个表中进行两次不同的更新,但它更新错误。

那么,我该如何使用@Transactional注释呢?

请帮助我解决这个问题。

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页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接:

https://stackoverflow.com/questions/51485254

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