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This article mainly explains "how to use IDEA to debug code remotely". The content of the article is simple and clear, and it is easy to learn and understand. Please follow the editor's train of thought to study and learn "how to debug code remotely using IDEA".

Often encountered at work to connect to the development database, the program has no problems, but as soon as it is online or running in the test environment, there are all kinds of problems, now let's configure the remote debug.

I. principle

The two VM of the local machine and the remote host communicate through the Socket using the Debug protocol to transmit debugging instructions and debugging information.

Remote virtual machine of the debugged program: as a Debug server, listens for Debug debugging instructions. Jdwp is the abbreviation of Java Debug Wire Protocol.

Local virtual machine for the debugger: the Remote Server configured in IDEA, which specifies the Host:Port of the Debug server for Debug client programs to connect.

Second, remote debugging steps

1. Use spring-boot to create test project ares-boot, and write test Controller

Package com.ares.controller;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RestController;@RestController@RequestMapping ("/ hello") public class HelloController {@ RequestMapping ("") public String hello (String name) {return "hello" + name;}}

Pack it into a jar package and start the service using java-jar

Java-agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=*:10090-jar ares-springboot-1.0.0.jar-- server.port=9090 where-agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=*:10090 specifies the port for open debugging

2. IDEA configure startup environment (Debug server)

Create a new remote

Configure the service address and port to debug

Using debug to launch and the browser to visit http://localhost:9090/hello, we find that Idea has entered the debug mode

Note:

1) sometimes prompt Connect time out when debugging, and you need to turn off the firewall at this time

2) remote debugging can be carried out only if the local and remote code are consistent.

Thank you for reading, the above is the content of "how to use IDEA to debug code remotely". After the study of this article, I believe you have a deeper understanding of how to use IDEA to debug code remotely, and the specific use needs to be verified in practice. Here is, the editor will push for you more related knowledge points of the article, welcome to follow!

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