精选留言(6)

• 
  冬渐暖

  2019-12-02

  这一章真的是相见恨晚啊。。。。感觉这一章基本可以放在前几章讲了。。。突然发现这一章感觉看你人都更帅了，可能是换了件衣服吧。哈哈
  之前我一直是从你git上传的代码里面查看netty源代码。这样完全不能全局搜索源代码，我看你突然点开一个文件。。我就现在页面上写一个这个类。。。。然后点进去看源码。。
  当时我看你git也没有上传netty源代码相关的。我还以为只有netty内部开发人员才可以下载，哈哈。
  
  我已经在git上下载netty源码了
  目前遇到的问题是无论是命令行clean install 还是在maven 指定jdk8+windows配置文件 还是右键任何一个项目debug--》compile 都是412的错误
  
  
  [INFO] ------------------------------------------------------------------------
  [ERROR] Failed to execute goal org.apache.maven.plugins:maven-checkstyle-plugin:3.0.0:check (check-style) on project netty-common: Failed during checkstyle execution: There are 412 erro
  rs reported by Checkstyle 8.18 with io/netty/checkstyle.xml ruleset. -> [Help 1]
  [ERROR]
  [ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
  [ERROR] Re-run Maven using the -X switch to enable full debug logging.
  [ERROR]
  [ERROR] For more information about the errors and possible solutions, please read the following articles:
  [ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException
  [ERROR]
  [ERROR] After correcting the problems, you can resume the build with the command
  [ERROR] mvn <goals> -rf :netty-common
  
  
  说是说关闭checkstyle。。。。不过找了很多资料还是关不了，idea里面的插件也没有装这个。尴尬。。。
  
  
  
  

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• 
  WING

  2019-12-01

  我用的Eclipse，编译代码遇到很多坑，供同用Eclipse的同学参考：
  1、maven插件问题：代码导入进来，好多pom报错，都是maven插件错误，如xml-maven-plugin，groovy-maven-plugin等等，解决办法：找到eclipse安装目录下的plugins目录，找到org.eclipse.m2e.lifecyclemapping.defaults_xxxx.jar插件，将里面的lifecycle-mapping-metadata.xml拷贝到netty源码工作区的.metadata\.plugins\org.eclipse.m2e.core下，添加报错的maven插件配置（配置完要重启Eclipse）：
      <pluginExecution>
        <pluginExecutionFilter>
          <groupId>org.codehaus.mojo</groupId>
          <artifactId>xml-maven-plugin</artifactId>
          <versionRange>[1.0.1,)</versionRange>
          <goals>
            <goal>check-format</goal> <!-- 与报错信息的execution的goal一致 -->
            <goal>validate</goal>
          </goals>
        </pluginExecutionFilter>
        <action>
          <ignore />
        </action>
      </pluginExecution>
  
  2、check style的错误，会提示文件未以空行结尾（windows平台，mac估计不会报这个），那是因为文件默认是Unix的换行，在windows平台转换一下换行就可以，File->Convert Line Delimiters To，选择Windows即可。所以有钱还是换台mac book吧 :)
  
  3、其他错误参考老师视频就好
  
  4、废弃的udt模块也有个slf4j的依赖存在版本冲突，不用管，可以编译成功，反正也废弃了，就是留着个红叉不舒服而已。

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  作者回复: 谢谢您对eclipse补充，赠人玫瑰，手有余香，👏👍

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• 
  pchou

  2019-11-30

  有个疑问，那一堆需要codegen的代码是什么原因。怎么感觉跟c++模板似的。不能用泛型解决吗？

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• 
  加载中……

  2019-10-28

  记录下构建结果:
  Reactor Summary for Netty 4.1.43.Final-SNAPSHOT:
  Netty/Dev-Tools ........ SUCCESS [2.455 s]
  Netty ........... SUCCESS [7.586 s]
  Netty/Common ........... SUCCESS [ 14.504 s]
  Netty/Buffer ........... SUCCESS [4.194 s]
  Netty/Resolver ......... SUCCESS [3.221 s]
  Netty/Transport ........ SUCCESS [4.764 s]
  Netty/Codec ..... SUCCESS [6.489 s]
  Netty/Codec/DNS ........ SUCCESS [3.390 s]
  Netty/Codec/HAProxy .... SUCCESS [3.381 s]
  Netty/Handler .......... SUCCESS [5.136 s]
  Netty/Codec/HTTP ....... SUCCESS [5.295 s]
  Netty/Codec/HTTP2 ...... SUCCESS [4.238 s]
  Netty/Codec/Memcache .......... SUCCESS [3.003 s]
  Netty/Codec/MQTT ....... SUCCESS [2.965 s]
  Netty/Codec/Redis ...... SUCCESS [2.733 s]
  Netty/Codec/SMTP ....... SUCCESS [2.993 s]
  Netty/Codec/Socks ...... SUCCESS [3.349 s]
  Netty/Codec/Stomp ...... SUCCESS [2.824 s]
  Netty/Codec/XML ........ SUCCESS [2.732 s]
  Netty/Handler/Proxy .... SUCCESS [2.507 s]
  Netty/Resolver/DNS ..... SUCCESS [4.733 s]
  Netty/Transport/RXTX .......... SUCCESS [2.496 s]
  Netty/Transport/SCTP .......... SUCCESS [2.857 s]
  Netty/Transport/UDT .... SUCCESS [4.487 s]
  Netty/Example .......... SUCCESS [4.359 s]
  Netty/Transport/Native/Unix/Common ... SUCCESS [3.106 s]
  Netty/Testsuite ........ SUCCESS [3.148 s]
  Netty/Transport/Native/Unix/Common/Tests .... SUCCESS [2.550 s]
  Netty/Transport/Native/KQueue ........ SUCCESS [ 25.000 s]
  Netty/Transport/Native/Epoll ......... SUCCESS [8.717 s]
  Netty/All-in-One ....... SUCCESS [8.696 s]
  Netty/Tarball .......... SUCCESS [0.905 s]
  Netty/Testsuite/Autobahn ...... SUCCESS [3.151 s]
  Netty/Testsuite/Http2 ......... SUCCESS [3.413 s]
  Netty/Testsuite/OSGI .......... SUCCESS [3.374 s]
  Netty/Testsuite/Shading ....... SUCCESS [9.432 s]
  Netty/Testsuite/NativeImage ... SUCCESS [3.898 s]
  Netty/Microbench ....... SUCCESS [ 25.340 s]
  Netty/BOM ....... SUCCESS [0.023 s]
  BUILD SUCCESS
  Total time: 03:28 min
  Finished at: 2019-10-28T08:17:40+08:00

  展开

  作者回复: 你成功了，哈

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• 
  小不点

  2019-10-24

  下周三见了，这几章听的云里雾里的，好几脸懵逼

  作者回复: 加油

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• 
  李园

  2019-10-23

  老师能用这个netty做通讯用于一秒通讯一次一天24小时不停，如果能怎么部署呢

  作者回复: 一秒一次，太少了……，连health check也不止吧，随便用什么写都能做到的，部署什么方式都行，最简单的，打成可执行jar启动

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