点对点直连报错：
关键的报错语句：
2021-06-02 15:30:55.784 ERROR 5248 --- [ main] c.n.d.s.t.d.RedirectingEurekaHttpClient : Request execution error. endpoint=DefaultEndpoint{ serviceUrl='http://localhost:8761/eureka/}
com.sun.jersey.api.client.ClientHandlerException: java.net.ConnectException: Connection refused: connect
Caused by: java.net.ConnectException: Connection refused: connect
2021-06-02 15:30:55.786 ERROR 5248 --- [ main] com.netflix.discovery.DiscoveryClient : DiscoveryClient_APPLICATION-CLIENT/localhost:application-client:8083 - was unable to refresh its cache! status = Cannot execute request on any known server
源码：
避坑！！！
博客：https://blog.csdn.net/a755199443/article/details/92637977
可以正常运行的正常shell脚本代码(两处中文处记得更改!)：
#!/bin/bash
cd `dirname $0`
CUR_SHELL_DIR=`pwd`
CUR_SHELL_NAME=`basename ${BASH_SOURCE}`
JAR_NAME="项目名(如eureka-1.0-SNAPSHOT.jar)"
JAR_PATH=$CUR_SHELL_DIR/$JAR_NAME
#JAVA_MEM_OPTS=" -server -Xms1024m -Xmx1024m -XX:PermSize=128m"
JAVA_MEM_OPTS=""
SPRING_PROFILES_ACTIV="-Dspring.profiles.active=配置文件变量名称(如eureka1)"
#SPRING_PROFILES_ACTIV=""
LOG_DIR=$CUR_SHELL_DIR/logs
LOG_PATH=$LOG_DIR/${JAR_NAME%..log
echo_help()
{
echo -e "syntax: sh $CUR_SHELL_NAME start|stop"
}
if [ -z $1 ];then
echo_help
exit 1
fi
if [ ! -d "$LOG_DIR" ];then
mkdir "$LOG_DIR"
fi
if [ ! -f "$LOG_PATH" ];then
touch "$LOG_DIR"
fi
if [ "$1" == "start" ];then
# check server
PIDS=`ps --no-heading -C java -f --width 1000 | grep $JAR_NAME | awk '{print $2}'`
if [ -n "$PIDS" ]; then
echo -e "ERROR: The $JAR_NAME already started and the PID is ${PIDS}."
exit 1
fi
echo "Starting the $JAR_NAME..."
# start
nohup java $JAVA_MEM_OPTS -jar $SPRING_PROFILES_ACTIV $JAR_PATH >> $LOG_PATH 2>&1 &
COUNT=0
while [ $COUNT -lt 1 ]; do
sleep 1
COUNT=`ps --no-heading -C java -f --width 1000 | grep "$JAR_NAME" | awk '{print $2}' | wc -l`
if [ $COUNT -gt 0 ]; then
break
fi
done
PIDS=`ps --no-heading -C java -f --width 1000 | grep "$JAR_NAME" | awk '{print $2}'`
echo "${JAR_NAME} Started and the PID is ${PIDS}."
echo "You can check the log file in ${LOG_PATH} for details."
elif [ "$1" == "stop" ];then
PIDS=`ps --no-heading -C java -f --width 1000 | grep $JAR_NAME | awk '{print $2}'`
if [ -z "$PIDS" ]; then
echo "ERROR:The $JAR_NAME does not started!"
exit 1
fi
echo -e "Stopping the $JAR_NAME..."
for PID in $PIDS; do
kill $PID > /dev/null 2>&1
done
COUNT=0
while [ $COUNT -lt 1 ]; do
sleep 1
COUNT=1
for PID in $PIDS ; do
PID_EXIST=`ps --no-heading -p $PID`
if [ -n "$PID_EXIST" ]; then
COUNT=0
break
fi
done
done
echo -e "${JAR_NAME} Stopped and the PID is ${PIDS}."
else
echo_help
exit 1
fi
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