springboot开启远程调试

时间:2021-09-08 16:34:54

远程调试maven设置

The run goal forks a process for the boot application. It is possible to specify jvm arguments to that forked process. The following configuration suspend the process until a debugger has joined on port 5005

<project>
...
<build>
...
<plugins>
...
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<version>1.1.12.RELEASE</version>
<configuration>
<jvmArguments>
-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=5005
</jvmArguments>
</configuration>
...
</plugin>
...
</plugins>
...
</build>
...
</project>
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These arguments can be specified on the command line as well, make sure to wrap that properly, that is:

mvn spring-boot:run -Drun.jvmArguments="-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=5005"
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jar 命令开启远程调试

在执行jar的时候,添加上参数。如下:

java -Xdebug -Xrunjdwp:server=y,transport=dt_socket,address=8000,suspend=n -jar demo.jar
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如果想深入了解Java调试,那么去看一下这个吧。深入Java调试体系

问题

如果出现Connection refused

首先检查一下端口8000的使用情况:

use:~/tomcat/logs # netstat -an|grep 8000
cp 0 0 127.0.0.1:8000 0.0.0.0:* LISTEN
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可见当前16808端口服务被绑定了回环地址,外部无法访问。即本地调试。

办法:

修改catalina.sh中一个参数。

if [ -z "$JPDA_TRANSPORT" ]; then
JPDA_TRANSPORT="dt_socket"
fi
if [ -z "$JPDA_ADDRESS" ]; then
JPDA_ADDRESS="0.0.0.0:8000"
fi
if [ -z "$JPDA_SUSPEND" ]; then
JPDA_SUSPEND="n"
fi
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JPDA_ADDRESS="localhost:8000" 把默认值(localhost:8000)改成0.0.0.0:8000。默认是本地ip调试也就是无法远程调试,0.0.0.0表示所有ip地址都能调试。

远程连上后再看端口情况:

root@VM-198-217-ubuntu:/opt/apache-tomcat-8.5.16/bin# netstat -an | grep 8000
tcp 0 0 10.133.198.217:8000 60.177.99.27:49998 ESTABLISHED
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断开后是这样的:

root@VM-198-217-ubuntu:/opt/apache-tomcat-8.5.16/bin# netstat -an | grep 8000
tcp 0 0 0.0.0.0:8000 0.0.0.0:* LISTEN
tcp 0 0 10.133.198.217:8000 60.177.99.27:49998 TIME_WAIT
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idea连接远程端口进行远程debug

我已经在服务器上开启了远程调试,idea连接的步骤,直接上图。

  1. edit configurations

    springboot开启远程调试

  2. 远程调试配置 
    springboot开启远程调试

  3. 参数配置 
    springboot开启远程调试

    将红框内的地址和端口号改成自己的。

    springboot开启远程调试

  4. 启动远程调试 
    springboot开启远程调试

  5. 成功界面

    springboot开启远程调试

  6. 请求一下试试

    springboot开启远程调试

转自:https://blog.csdn.net/wsyw126/article/details/74853680