在Eclipse中，如何使用“ Workspace…”语法（例如$ {workspace_loc：/ myworkspace}）指定文件（用于控制台日志）？

Question

I was following the instructions in this answer: View deleted console output

(to set up a file in which Eclipse will record everything that goes to the console _{(too bad that is not done by default!)} ), and under:

• Run Configurations
  • Java Application
    • Common (tab)
      • Standard Input and Output

there are 3 options

• Workspace...
• File System...
• Variables...

I wanted to use "Workspace...", and I selected my workspace, which generated text like this in the text box:

${workspace_loc:/myworkspacesubfolder}

I wanted to specify the file name, and I tried all of these forms:

${workspace_loc:/myworkspacesubfolder}test.txt

${workspace_loc:/myworkspacesubfolder}/test.txt

${workspace_loc:/myworkspacesubfolder}\\test.txt

...but none of them worked. (No errors alerts were thrown, but neither was the text file generated upon running the program.)

_{(I then gave up and used "File System..." instead of "Workspace...", which takes a standard path such as}

C:\\test.txt

^{, but...)}

What is the proper syntax for using "Workspace..."?

Answer 1

The proper syntax for this is: ${workspace_loc:/myworkspacesubfolder/test.txt} Make sure that you manually create test.txt file in that location. I is not created automatically by eclipse.

Answer 2

The correct syntax is ${workspace_loc:/myworkspacesubfolder}/test.txt . This works even when the file does not already exist.

See this Eclipse bug for an explanation of why ${workspace_loc:/myworkspacesubfolder/test.txt} doesn't work when the file doesn't already exist.