IDEA远程调试Tomcat【Java】

一、linux环境修改tomcat配置

vi tomcat8/bin/catalina.sh 

#                   Example (all one line)
#                   LOGGING_MANAGER="-Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManage
#
#   UMASK           (Optional) Override Tomcat's default UMASK of 0027
#
#   USE_NOHUP       (Optional) If set to the string true the start command will
#                   use nohup so that the Tomcat process will ignore any hangup
#                   signals. Default is "false" unless running on HP-UX in which
#                   case the default is "true"
# -----------------------------------------------------------------------------

# 在此处加上下面的语句，address=5005，5005端口号要与下面JPDA_ADDRESS="localhost:5005"一致
# 默认是8000，可以修改我其他端口号，但是要保证端口是开启的
export JAVA_OPTS='-agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=5005'

# OS specific support.  $var _must_ be set to either true or false.
cygwin=false
darwin=false
os400=false
hpux=false
case "`uname`" in
CYGWIN*) cygwin=true;;
Darwin*) darwin=true;;
OS400*) os400=true;;
HP-UX*) hpux=true;;
esac
# ...
# ...
# ...
# 中间的省略
# ...
# ...
# ...
if [ "$1" = "jpda" ] ; then
  if [ -z "$JPDA_TRANSPORT" ]; then
    JPDA_TRANSPORT="dt_socket"
  fi
  if [ -z "$JPDA_ADDRESS" ]; then
    JPDA_ADDRESS="localhost:5005"           // 此处端口号要与上面的一致
  fi
  if [ -z "$JPDA_SUSPEND" ]; then
    JPDA_SUSPEND="n"
  fi
  if [ -z "$JPDA_OPTS" ]; then
    JPDA_OPTS="-agentlib:jdwp=transport=$JPDA_TRANSPORT,address=$JPDA_ADDRESS,server=y,suspend=$JPDA_
SUSPEND"
  fi
  CATALINA_OPTS="$JPDA_OPTS $CATALINA_OPTS"
  shift
fi

上面的配置重点是

# -----------------------------------------------------------------------------

# 在此处加上下面的语句，address=5005，5005端口号要与下面JPDA_ADDRESS="localhost:5005"一致
# 默认是8000，可以修改我其他端口号，但是要保证端口是开启的
export JAVA_OPTS='-agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=5005'

# OS specific support.  $var _must_ be set to either true or false.

# ...
# ...
# ...
# 中间的省略
# ...
# ...
# ...

    JPDA_ADDRESS="localhost:5005"           // 此处端口号要与上面的一致

在bin目录下执行命令 sh catalina.sh jpda start ，可以启动tomcat并开启远程调试的端口

二、IDEA配置

最后在IDEA上以dubug模式启动就可以了。

三、如果是springboot项目，linux中以jar的方式启动

java -jar -Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=5005 XXX.jar