Jetty的工作参数

Jetty加载参数的优先级：

1. 命令行。
2. $JETTY_BASE下的文件。
3. 使用--include-jetty-dir指定的目录下的文件。
4. $JETTY_HOME下的文件。

查看当前的配置参数，执行如下命令：

java -jar $JETTY_HOME/start.jar --list-config

命令的输出如下：

Enabled Modules:
----------------
  1) resources                 transitive provider of resources for logging-jetty
  2) logging/slf4j             transitive provider of logging/slf4j for logging-jetty
                               dynamic dependency of logging-jetty
  3) logging-jetty             transitive provider of logging for threadpool
                               transitive provider of logging for bytebufferpool
                               transitive provider of logging for server
  4) bytebufferpool            transitive provider of bytebufferpool for server
                               ini template available with --add-modules=bytebufferpool
  5) threadpool                transitive provider of threadpool for server
                               ini template available with --add-modules=threadpool
  6) server                    ${jetty.base}/start.d/server.ini
  7) http                      ${jetty.base}/start.d/http.ini

JVM Version & Properties:
-------------------------
 java.home = /home/jackie/software/jdk-21.0.2
 java.vm.vendor = Oracle Corporation
 java.vm.version = 21.0.2+13-LTS-58
 java.vm.name = Java HotSpot(TM) 64-Bit Server VM
 java.vm.info = mixed mode, sharing
 java.runtime.name = Java(TM) SE Runtime Environment
 java.runtime.version = 21.0.2+13-LTS-58
 java.io.tmpdir = /tmp
 user.dir = /home/jackie/workspace/jetty_run
 user.language = en
 user.country = US

Jetty Version & Properties:
---------------------------
 jetty.version = 12.0.6
 jetty.tag.version = jetty-12.0.6
 jetty.build = 78ab6e6ba163f89cdd97f2ae0283fbb5e371cfaf
 jetty.home = /home/jackie/software/jetty-home-12.0.6
 jetty.base = /home/jackie/workspace/jetty_run

Config Search Order:
--------------------
 <command-line>
 ${jetty.base} -> /home/jackie/workspace/jetty_run
 ${jetty.home} -> /home/jackie/software/jetty-home-12.0.6

System Properties:
------------------
 (no system properties specified)

Properties: Jetty
-----------------
 java.version = 21.0.2
 java.version.major = 21
 java.version.micro = 2
 java.version.minor = 0
 java.version.platform = 21
 jetty.base = /home/jackie/workspace/jetty_run
 jetty.base.uri = file:///home/jackie/workspace/jetty_run
 jetty.home = /home/jackie/software/jetty-home-12.0.6
 jetty.home.uri = file:///home/jackie/software/jetty-home-12.0.6
 jetty.webapp.addServerClasses = org.eclipse.jetty.logging.,${jetty.home.uri}/lib/logging/,org.slf4j.
 runtime.feature.alpn = true
 slf4j.version = 2.0.9

Classpath: Jetty
----------------
Version Information on 8 entries in the classpath.
Note: order presented here is how they would appear on the classpath.
      changes to the --module=name command line options will be reflected here.
 0:                    (dir) | ${jetty.base}/resources
 1:                    2.0.9 | ${jetty.home}/lib/logging/slf4j-api-2.0.9.jar
 2:                   12.0.6 | ${jetty.home}/lib/logging/jetty-slf4j-impl-12.0.6.jar
 3:                   12.0.6 | ${jetty.home}/lib/jetty-http-12.0.6.jar
 4:                   12.0.6 | ${jetty.home}/lib/jetty-server-12.0.6.jar
 5:                   12.0.6 | ${jetty.home}/lib/jetty-xml-12.0.6.jar
 6:                   12.0.6 | ${jetty.home}/lib/jetty-util-12.0.6.jar
 7:                   12.0.6 | ${jetty.home}/lib/jetty-io-12.0.6.jar

Active XMLs: Jetty
------------------
 ${jetty.home}/etc/jetty-bytebufferpool.xml
 ${jetty.home}/etc/jetty-threadpool.xml
 ${jetty.home}/etc/jetty.xml
 ${jetty.home}/etc/jetty-http.xml

修改http模块的配置文件$JETTY_BASE/start.d/http.ini，指定jetty.http.port为8081。

查看配置文件中的参数，执行如下命令：

cat $JETTY_BASE/start.d/http.ini|grep "jetty.http.port"

命令的输出，如下：

jetty.http.port=8081

检查Jetty加载的参数，执行如下命令：

java -jar $JETTY_HOME/start.jar --list-config|grep "jetty.http.port"

命令的输出，如下：

 jetty.http.port = 8081

在命令行指定指定jetty.http.port为9091，检查Jetty加载的参数，执行如下命令：

java -jar $JETTY_HOME/start.jar --list-config jetty.http.port=9091|grep "jetty.http.port"

命令的输出，如下：

 jetty.http.port = 9091