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| <h1 id="215-260">2.1.5 升级 2.6.0 指导</h1> |
| <h2 id="notblanknotempty">支持<code>@NotBlank</code>和<code>@NotEmpty</code></h2> |
| <p>参考下面的例子。这个新的特性在一些特殊的情况下可能导致业务故障,比如业务错误的加上了这些标签,但是实际上不会做参数校验,现在变更为校验。 </p> |
| <pre><code class="language-java">public class Teacher { |
| |
| @NotBlank |
| private String name; |
| |
| private String age; |
| |
| // getters, setters |
| } |
| </code></pre> |
| <h2 id="servicecombrestclientconnectionidletimeoutinseconds-30s"><code>servicecomb.rest.client.connection.idleTimeoutInSeconds</code> 缺省值修改为 30s</h2> |
| <p>因为服务端HTTP连接的Idle Timeout时间设置通常是60s(包括Vert.x、Tomcat等),为了尽可能降低客户端使用已经关闭了连接 |
| 的概率,调整了这个参数的默认值。如果业务系统中没有设置这个参数,并且有些场景将 <code>servicecomb.request.timeout</code> 设置 |
| 为大于30s, 那么可能导致这些请求提前超时。 </p> |
| <p>更多详细信息可以<a href="https://github.com/apache/servicecomb-java-chassis/issues/2603">参考案例</a>。</p> |
| <h2 id="nettyvertx"><code>netty</code>和<code>vert.x</code> 升级</h2> |
| <p>2.6.0目前使用了最新的 <code>netty</code> 和 <code>vert.x</code> 版本, 这两个软件最新版本做了较多的重构,需要保证版本匹配才能够正常工作。 |
| 业务尽可能不要自行单独调整单个软件的版本,保持和java-chassis使用一致,否则容易导致一些兼容性问题。 未来的版本,两个软件 |
| 的兼容情况应该会有所改善,建议业务升级后,及时调整这两个软件的废弃用法。 </p> |
| <p>这两个软件升级目前已知的可能影响业务功能的点包括:</p> |
| <ul> |
| <li><code>servicecomb.rest.server.maxFormAttributeSize</code> 的缺省值为 8192。 java-chassis的缺省值使用了 <code>vert.x</code> |
| 的缺省值。这个值在最近的几个版本中,发生过几次变更,从无限制变更为1024, 变更为2048,到现在的8192。 如果业务需要 |
| 依赖比较大的值,建议在配置文件设置适合应用场景的限制,不跟随这个缺省值。</li> |
| </ul> |
| <h2 id="spring-spring-boot"><code>Spring</code> 和 <code>Spring Boot</code> 升级</h2> |
| <p>2.6.0目前使用了最新的 <code>Spring</code> 和 <code>Spring Boot</code> 版本,这个版本存在少量的变更,可能在某些特殊场景下影响业务功能。已知的情况包括:</p> |
| <ul> |
| <li>对URL进行了更加严格的校验,以符合HTTP协议标准。早期一些不符合标准的URL可能会报告错误。</li> |
| <li><code>StringUtils</code>的<code>isEmpty</code>方法废弃了,这个方法容易造成误用,建议切换使用其他接口或者使用Commons Lang组件的接口。</li> |
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