DebugTools

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Quickly Call Java Methods ​

DebugTools lets you call Java methods in your project directly from IntelliJ IDEA. Both local and remote applications are supported, and you can call multiple methods across multiple applications at the same time.

You do not need to add a Controller, write a temporary test case, or trigger the logic layer by layer from a request entry point. Select the target method, fill in the parameters, and run it to quickly verify your business logic.

Use Cases ​

You can call ordinary class methods, static methods, Spring Bean methods, Dubbo services, XXL-JOB tasks, MQ consumer methods, MyBatis Mapper methods, streaming SSE responses, and more.

  • Verify the return result of a Service, Mapper, utility class, or component method
  • Skip outer flows such as Controller, gateway, authentication, and parameter assembly, and debug core business logic directly
  • Quickly call Spring-managed Bean methods, including methods from frameworks such as Dubbo, XXL-JOB, and MQ
  • Call MyBatis Mapper methods to verify SQL parameters, query results, and execution time
  • Pass complex parameters, Header parameters, or XXL-JOB parameters to a method
  • Remotely call methods in the target application and use remote Debug to locate problems
  • Combine with hot reload to call the method again immediately after changing code

Quick Start ​

Attach an Application ​

Click the attach button in the toolwindow to view the applications that can currently be attached.

attach_local.png

Double-click an application, or click the attach button below it, to attach the application. Click the item below to view its details.

attach_list.png

You can view attached applications in the connection management list. Multiple applications can be attached at the same time.

connection_list.png

Select a Method ​

You can open the method invocation window from both the method gutter icon and the right-click menu inside the method body. Multiple methods are supported.

method_invoke_position.png

View the method invocation window in toolwindows.

method_invoke_panel.png

Fill In Parameters and Run ​

Fill in the method parameter information. Complex parameters, Header parameters, pre- and post-scripts, XXL-JOB parameters, and more are supported. Then click run.

method_param.png

View Results ​

View the result with toString.

result_to_string.png

View the result as JSON.

result_json.png

View the result in Debug mode. The effect is basically the same as viewing breakpoints in IDEA.

result_debug.png

TIP

There are also special result views for scenarios such as Exception, SSE streaming, and Trace. These will be introduced in detail later.