Cause: Could not load a dependent class com/jcraft/jsch/Logger_could not load a dependedt class-优快云博客

本文链接：https://blog.youkuaiyun.com/eases_stone/article/details/84585411

本文详细解析了在使用Ant进行项目部署过程中遇到的scp任务失败问题，原因是未能加载依赖类com/jcraft/jsch/Logger。文章提供了从Maven中央库获取jsch库并将其放置在Ant安装包lib目录下的解决方案，确保了部署流程的顺利进行。

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Cause: Could not load a dependent class com/jcraft/jsch/Logger

原因ant scp 依赖jsch-xxx.jar
解决：到maven 中央库中，找一个jar 放到ant 的安装包lib 目录下。
http://repo.maven.apache.org/maven2/com/jcraft/jsch/
找一个比较新的jar 即可。

[devops@iZbp12vtv76y9q3d633bh6Z nginx-analysis]$ ./ant/bin/ant -f shell/scp-niginx-log.xml  -Ddate=2018-11-28 
Buildfile: /resource/nginx-analysis/shell/scp-niginx-log.xml

scp-tar:

BUILD FAILED
/resource/nginx-analysis/shell/scp-niginx-log.xml:17: Problem: failed to create task or type scp
Cause: Could not load a dependent class com/jcraft/jsch/Logger
       It is not enough to have Ant's optional JARs
       you need the JAR files that the optional tasks depend upon.
       Ant's optional task dependencies are listed in the manual.
Action: Determine what extra JAR files are needed, and place them in one of:
        -/resource/nginx-analysis/ant/lib
        -/home/devops/.ant/lib
        -a directory added on the command line with the -lib argument

Do not panic, this is a common problem.
The commonest cause is a missing JAR.

This is not a bug; it is a configuration problem