本地使用 IDEA 调试远程部署的程序代码

​日常开发工作中经常会出现代码本地运行无问题，但部署到服务器中功能无法正常使用。本篇博客介绍如何使用IDEA像调试本地代码一样，调试远端代码。

• 服务端口：远端部署的应用对外开放的访问端口。

• 调试端口：远端部署的应用额外开启的对外调试端口。

  当远端服务被调用时，触发本地IDEA上的调试断点，用于调试远程服务器上部署的应用程序。

  

  ---

  实现步骤

  1. 创建springboot工程，并指定服务端口。(当然也可以不指定，默认8080)

     application.properties

     server.port=18080
     

  2. 配置本地IDEA远程连接。

     

     • Name：远程连接名称，任意写。
     • Host：远程主机。（服务部署服务器）
     • Port：调试端口
     • Command line arguments for remote JVM：填写好主机、端口信息后，IDEA会自动生成命令行，用于远端服务启动参数。

  3. 打包应用，并将Jar包上传至服务器。

  4. 启动服务。

     java -Xdebug -agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=8088 -jar remote-debug-demo-0.0.1-SNAPSHOT.jar
     

     服务器启动日志：

     [root@iZf8ozvj95ui19Z code]# java -Xdebug -agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=8088 -jar remote-debug-demo-0.0.1-SNAPSHOT.jar 
     Listening for transport dt_socket at address: 8088
     
       .   ____          _            __ _ _
      /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
     ( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
      \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
       '  |____| .__|_| |_|_| |_\__, | / / / /
      =========|_|==============|___/=/_/_/_/
      :: Spring Boot ::        (v2.3.1.RELEASE)
     
     2020-06-23 20:14:16.975  INFO 3206 --- [           main] com.ari.RemoteDebugDemoApplication       : Starting RemoteDebugDemoApplication v0.0.1-SNAPSHOT on iZf8ozvj95ui19Z with PID 3206 (/usr/code/remote-debug-demo-0.0.1-SNAPSHOT.jar started by root in /usr/code)
     2020-06-23 20:14:16.980  INFO 3206 --- [           main] com.ari.RemoteDebugDemoApplication       : No active profile set, falling back to default profiles: default
     2020-06-23 20:14:20.567  INFO 3206 --- [           main] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat initialized with port(s): 18080 (http)
     2020-06-23 20:14:20.630  INFO 3206 --- [           main] o.apache.catalina.core.StandardService   : Starting service [Tomcat]
     2020-06-23 20:14:20.631  INFO 3206 --- [           main] org.apache.catalina.core.StandardEngine  : Starting Servlet engine: [Apache Tomcat/9.0.36]
     2020-06-23 20:14:21.020  INFO 3206 --- [           main] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring embedded WebApplicationContext
     2020-06-23 20:14:21.020  INFO 3206 --- [           main] w.s.c.ServletWebServerApplicationContext : Root WebApplicationContext: initialization completed in 3904 ms
     2020-06-23 20:14:22.194  INFO 3206 --- [           main] o.s.s.concurrent.ThreadPoolTaskExecutor  : Initializing ExecutorService 'applicationTaskExecutor'
     2020-06-23 20:14:23.003  INFO 3206 --- [           main] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat started on port(s): 18080 (http) with context path ''
     2020-06-23 20:14:23.041  INFO 3206 --- [           main] com.ari.RemoteDebugDemoApplication       : Started RemoteDebugDemoApplication in 7.484 seconds (JVM running for 8.882)
     2020-06-23 20:17:25.379  INFO 3206 --- [io-18080-exec-1] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring DispatcherServlet 'dispatcherServlet'
     2020-06-23 20:17:25.379  INFO 3206 --- [io-18080-exec-1] o.s.web.servlet.DispatcherServlet        : Initializing Servlet 'dispatcherServlet'
     2020-06-23 20:17:25.415  INFO 3206 --- [io-18080-exec-1] o.s.web.servlet.DispatcherServlet        : Completed initialization in 36 ms
     

     Listening for transport dt_socket at address:8088 调试端口：8088

     Tomcat started on port(s): 18080 (http) with context path '' 服务端口：18080

  5. 启动本地远程连接，控制台提示”成功连接到远程调试端口“

     Connected to the target VM, address: '118.190.209.24:8088', transport: 'socket'
     

  6. 本地打断点并重新访问远端服务，本地成功进入DEBUG

     

  原视频链接：https://www.bilibili.com/video/BV1Da4y1e7kG