1 Star 0 Fork 0

灵宝骑士 / tcc-final

加入 Gitee
与超过 1200万 开发者一起发现、参与优秀开源项目,私有仓库也完全免费 :)
免费加入
克隆/下载
贡献代码
同步代码
取消
提示: 由于 Git 不支持空文件夾,创建文件夹后会生成空的 .keep 文件
tcc-final @ f3584e5
Loading...
README
Apache-2.0

tcc-final

介绍

tcc分布式事务解决方案

通常一个请求到达网关,经由网关到APP中心,APP中心调用服务完成业务流程。 这里是在APP中心里增加了ucc层,使用ucc调用服务。一个ucc代表一个完整的业务流程。

一个业务分为try、confirm、cancel方法。try执行通过,confirm、cancel必须保证能正常执行。 每一个完整的业务流程都要求有一个全分布式系统唯一的tcc_id。

软件架构

sql
tcc_db.sql 核心sql,记录ucc,bs相关信息; tcc_acount_points.sql、tcc_acount_pay.sql应用例子sql。应用例子是为了说明tcc-final的使用和测试。

tcc-final-core tcc-final核心,包含切面的定义等。

tcc-final-consts tcc-final常量定义。

tcc-springcloud-starter tcc-final结合springcloud eureka使用时须导入此包。

tcc-final-cloud-eureka tcc-final结合springcloud使用例子 tcc-cloud-pay-api 账户支付接口 tcc-cloud-pay 账户支付业务 tcc-cloud-points-api 账户积分接口 tcc-cloud-points账户积分业务 tcc-cloud-server eureka服务中心 tcc-cloud-web-app app应用中心,在这里使用ucc调用业务 tcc-final-sure 定时6秒查找因各种异常原因超过3分钟未正常执行完的ucc,然后使之正常执行完

安装教程

  1. 暂时只适合springcloud eureka使用

  2. 在应用中心,引入tcc-final-core包,在定义ucc接口和实现类。在ucc接口有分布式事务的方法上加@TccTransaction(ucc = true) 在ucc实现类里调用各业务接口完成业务流程。在需要参与分布式事务的接口try方法上加@TccTransaction 如果一个ucc发生了变化,需加入ver参数使生成新的ucc流程定义。eg.@TccTransaction(ucc = true,ver = 1)//版本号变更会生成新的tcc_bs bs的confirm、cancel方法名字默认为try方法名首字母大写在在前面加上confirm、cancel;如果bs自定义了不一样的confirm、cancel方法名,需
    在注解上加上confirm,cancel方法名参数

    @TccTransaction只在接口方法上使用。只用于ucc和bs接口。

  3. tcc-final-core当ucc执完try方法正常结束则执行各业务confirm,如try过程中异常则执行各业务cancel。

  4. tcc-final-sure 定时6秒查找因各种异常原因超过3分钟未正常执行完的ucc,然后使之正常执行完

使用说明

一个完整的分布式业务流程就是一个ucc。其try尝试执行,如try能通过,则confirm一定能正常执行通过。如果try无法执行通过,则cancel一定
能正常执行通过。保证的是最终一致性,try是尝试执行,并记录业务信息,confirm是确认,cancel
是回退到最初,confirm、cancel都是通过try记录的业务信息来执行的。
 
这里业务服务示例应该用mq或其它做一个幂等。
eg。一个简单的业务,账户支付、账户加积分,最终一起成功或失败。 支付10元,加100积分。则try方法为支付账户里减10元,积分账户不动,并在 
记录表里记下这次业务数据;  
假设先执行的是积分服务;
try都执行通过,那么confirm方法支付账户不动,积分账户里加上100积分,完成业务流程;   
支付try执行不通过,则执行cancel,积分账户不动,支付账户里加上业务数据里记录的10元钱,完成业务流程。

tcc-final-sure 定时6秒查找因各种异常原因超过3分钟未正常执行完的ucc,比如应用中心突然挂机了,然后调用bs执行完业务流程

更新后续

1.数据库变更为多库,一表变为多表,增加并发量 2.增加其它项目子包,使之能结合dubbo等其它框架使用 3.更改一些方式,使之异步执行confirm和cancel各业务 4.增加其它持久化方法,使之可以不一定非得用数据库来持久分布式信息 5.增加一个外部记录类,代替printStackTrace,使异常信息直接输入到业务系统指定地方。默认实现为在系统控制台打印。 6.分布式事务数据中心。分布式事务数据不直接物理删除,移到history表中。展现管理各分布式事务数据。 7.业务示例用mq队列或其它方式做一个幂等控制

参与贡献

  1. Fork 本仓库
  2. 新建 Feat_xxx 分支
  3. 提交代码
  4. 新建 Pull Request

码云特技

  1. 使用 Readme_XXX.md 来支持不同的语言,例如 Readme_en.md, Readme_zh.md
  2. 码云官方博客 blog.gitee.com
  3. 你可以 https://gitee.com/explore 这个地址来了解码云上的优秀开源项目
  4. GVP 全称是码云最有价值开源项目,是码云综合评定出的优秀开源项目
  5. 码云官方提供的使用手册 https://gitee.com/help
  6. 码云封面人物是一档用来展示码云会员风采的栏目 https://gitee.com/gitee-stars/
Apache License Version 2.0, January 2004 http://www.apache.org/licenses/ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 1. Definitions. "License" shall mean the terms and conditions for use, reproduction, and distribution as defined by Sections 1 through 9 of this document. "Licensor" shall mean the copyright owner or entity authorized by the copyright owner that is granting the License. "Legal Entity" shall mean the union of the acting entity and all other entities that control, are controlled by, or are under common control with that entity. For the purposes of this definition, "control" means (i) the power, direct or indirect, to cause the direction or management of such entity, whether by contract or otherwise, or (ii) ownership of fifty percent (50%) or more of the outstanding shares, or (iii) beneficial ownership of such entity. "You" (or "Your") shall mean an individual or Legal Entity exercising permissions granted by this License. "Source" form shall mean the preferred form for making modifications, including but not limited to software source code, documentation source, and configuration files. "Object" form shall mean any form resulting from mechanical transformation or translation of a Source form, including but not limited to compiled object code, generated documentation, and conversions to other media types. "Work" shall mean the work of authorship, whether in Source or Object form, made available under the License, as indicated by a copyright notice that is included in or attached to the work (an example is provided in the Appendix below). "Derivative Works" shall mean any work, whether in Source or Object form, that is based on (or derived from) the Work and for which the editorial revisions, annotations, elaborations, or other modifications represent, as a whole, an original work of authorship. For the purposes of this License, Derivative Works shall not include works that remain separable from, or merely link (or bind by name) to the interfaces of, the Work and Derivative Works thereof. "Contribution" shall mean any work of authorship, including the original version of the Work and any modifications or additions to that Work or Derivative Works thereof, that is intentionally submitted to Licensor for inclusion in the Work by the copyright owner or by an individual or Legal Entity authorized to submit on behalf of the copyright owner. For the purposes of this definition, "submitted" means any form of electronic, verbal, or written communication sent to the Licensor or its representatives, including but not limited to communication on electronic mailing lists, source code control systems, and issue tracking systems that are managed by, or on behalf of, the Licensor for the purpose of discussing and improving the Work, but excluding communication that is conspicuously marked or otherwise designated in writing by the copyright owner as "Not a Contribution." "Contributor" shall mean Licensor and any individual or Legal Entity on behalf of whom a Contribution has been received by Licensor and subsequently incorporated within the Work. 2. Grant of Copyright License. Subject to the terms and conditions of this License, each Contributor hereby grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare Derivative Works of, publicly display, publicly perform, sublicense, and distribute the Work and such Derivative Works in Source or Object form. 3. Grant of Patent License. Subject to the terms and conditions of this License, each Contributor hereby grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable (except as stated in this section) patent license to make, have made, use, offer to sell, sell, import, and otherwise transfer the Work, where such license applies only to those patent claims licensable by such Contributor that are necessarily infringed by their Contribution(s) alone or by combination of their Contribution(s) with the Work to which such Contribution(s) was submitted. If You institute patent litigation against any entity (including a cross-claim or counterclaim in a lawsuit) alleging that the Work or a Contribution incorporated within the Work constitutes direct or contributory patent infringement, then any patent licenses granted to You under this License for that Work shall terminate as of the date such litigation is filed. 4. Redistribution. You may reproduce and distribute copies of the Work or Derivative Works thereof in any medium, with or without modifications, and in Source or Object form, provided that You meet the following conditions: (a) You must give any other recipients of the Work or Derivative Works a copy of this License; and (b) You must cause any modified files to carry prominent notices stating that You changed the files; and (c) You must retain, in the Source form of any Derivative Works that You distribute, all copyright, patent, trademark, and attribution notices from the Source form of the Work, excluding those notices that do not pertain to any part of the Derivative Works; and (d) If the Work includes a "NOTICE" text file as part of its distribution, then any Derivative Works that You distribute must include a readable copy of the attribution notices contained within such NOTICE file, excluding those notices that do not pertain to any part of the Derivative Works, in at least one of the following places: within a NOTICE text file distributed as part of the Derivative Works; within the Source form or documentation, if provided along with the Derivative Works; or, within a display generated by the Derivative Works, if and wherever such third-party notices normally appear. The contents of the NOTICE file are for informational purposes only and do not modify the License. You may add Your own attribution notices within Derivative Works that You distribute, alongside or as an addendum to the NOTICE text from the Work, provided that such additional attribution notices cannot be construed as modifying the License. You may add Your own copyright statement to Your modifications and may provide additional or different license terms and conditions for use, reproduction, or distribution of Your modifications, or for any such Derivative Works as a whole, provided Your use, reproduction, and distribution of the Work otherwise complies with the conditions stated in this License. 5. Submission of Contributions. Unless You explicitly state otherwise, any Contribution intentionally submitted for inclusion in the Work by You to the Licensor shall be under the terms and conditions of this License, without any additional terms or conditions. Notwithstanding the above, nothing herein shall supersede or modify the terms of any separate license agreement you may have executed with Licensor regarding such Contributions. 6. Trademarks. This License does not grant permission to use the trade names, trademarks, service marks, or product names of the Licensor, except as required for reasonable and customary use in describing the origin of the Work and reproducing the content of the NOTICE file. 7. Disclaimer of Warranty. Unless required by applicable law or agreed to in writing, Licensor provides the Work (and each Contributor provides its Contributions) on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied, including, without limitation, any warranties or conditions of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A PARTICULAR PURPOSE. You are solely responsible for determining the appropriateness of using or redistributing the Work and assume any risks associated with Your exercise of permissions under this License. 8. Limitation of Liability. In no event and under no legal theory, whether in tort (including negligence), contract, or otherwise, unless required by applicable law (such as deliberate and grossly negligent acts) or agreed to in writing, shall any Contributor be liable to You for damages, including any direct, indirect, special, incidental, or consequential damages of any character arising as a result of this License or out of the use or inability to use the Work (including but not limited to damages for loss of goodwill, work stoppage, computer failure or malfunction, or any and all other commercial damages or losses), even if such Contributor has been advised of the possibility of such damages. 9. Accepting Warranty or Additional Liability. While redistributing the Work or Derivative Works thereof, You may choose to offer, and charge a fee for, acceptance of support, warranty, indemnity, or other liability obligations and/or rights consistent with this License. However, in accepting such obligations, You may act only on Your own behalf and on Your sole responsibility, not on behalf of any other Contributor, and only if You agree to indemnify, defend, and hold each Contributor harmless for any liability incurred by, or claims asserted against, such Contributor by reason of your accepting any such warranty or additional liability. END OF TERMS AND CONDITIONS APPENDIX: How to apply the Apache License to your work. To apply the Apache License to your work, attach the following boilerplate notice, with the fields enclosed by brackets "[]" replaced with your own identifying information. (Don't include the brackets!) The text should be enclosed in the appropriate comment syntax for the file format. We also recommend that a file or class name and description of purpose be included on the same "printed page" as the copyright notice for easier identification within third-party archives. Copyright [yyyy] [name of copyright owner] Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

简介

tcc分布式事务解决方案 展开 收起
Java
Apache-2.0
取消

发行版

暂无发行版

贡献者

全部

近期动态

加载更多
不能加载更多了
Java
1
https://gitee.com/HuanPoSui/tcc-final.git
git@gitee.com:HuanPoSui/tcc-final.git
HuanPoSui
tcc-final
tcc-final
master

搜索帮助