來(lái)自：戰(zhàn)魂小筑

http://m.shnenglu.com/sunicdavy/archive/2017/04/20/214874.html

使用Visual Studio Code調(diào)試Golang工程

關(guān)鍵字

• 最簡(jiǎn)單的調(diào)試攻略
• 多項(xiàng)目調(diào)試, 適用個(gè)人開(kāi)發(fā)和項(xiàng)目開(kāi)發(fā)
• 無(wú)需修改系統(tǒng)環(huán)境變量

準(zhǔn)備VSCode

在官網(wǎng)下載最新版的VSCode:

https://code.visualstudio.com/

安裝Golang插件

• 打開(kāi)擴(kuò)展面板

  VSCode->查看->擴(kuò)展

• 找到Go插件 在搜索框里輸入Go, 找到第二行寫有 Rich Go language support for Visual Studio Code的插件, 點(diǎn)擊安裝

  注意不是排名最高的

• 重啟編輯器

配置啟動(dòng)項(xiàng)

• 打開(kāi)調(diào)試面板

  VSCode->查看->調(diào)試

• 添加調(diào)試目標(biāo)

  在"沒(méi)有調(diào)試"的下拉框中點(diǎn)擊"添加配置.."

• 添加目標(biāo)調(diào)試配置

  例子:

  {
      "version": "0.2.0",
      "configurations": [
          {
              "name": "Launch",
              "type": "go",
              "request": "launch",
              "mode": "debug",
              "remotePath": "",
              "port": 2345,
              "host": "127.0.0.1",
              "program": "${fileDirname}",
              "env": {
                  "GOPATH":"D:/Develop/vscodegolang"
              },
              "args": [],
              "showLog": true
          }
      ]
  }

其中: "port", "host"都是go插件自動(dòng)生成的

"env"為設(shè)置環(huán)境變量, 設(shè)置為你的工程目錄就可以(包含bin, src的文件夾)

準(zhǔn)備調(diào)試插件

此時(shí)找到main.go按F5, 會(huì)報(bào)錯(cuò)提示:

Failded to continue:"Cannot find Delve debugger. Install from https://github.com/derekparker/delve & ensure it is in your "GOPATH/bin" or "PATH"

我們使用go命令行編譯調(diào)試器

go get github.com/derekparker/delve/cmd/dlv

將dlv調(diào)試器放在GOPATH(工程目錄)的bin目錄下

開(kāi)始調(diào)試

選中要調(diào)試的main.go, 點(diǎn)擊F5, 既可以開(kāi)始調(diào)試

調(diào)試快捷鍵和Visual Studio系一致

• F9 切換斷點(diǎn)
• F10 Step over
• F11 Step in
• Shift+F11 Step out

注意點(diǎn)

• 某些結(jié)構(gòu)體成員無(wú)法直接顯示時(shí), 可以直接選中變量名, 添加到監(jiān)視, 或者右鍵點(diǎn)擊: "調(diào)試:求值"

多項(xiàng)目調(diào)試

在launch.json中可以添加多組調(diào)試入口, 通過(guò)調(diào)試面板中選中對(duì)應(yīng)的配置開(kāi)啟不同目標(biāo)的調(diào)試

{
    "version": "0.2.0",
    "configurations": [
        {
            "name": "client",
            "type": "go",
            "request": "launch",
            "mode": "debug",
            "remotePath": "",
            "port": 2345,
            "host": "127.0.0.1",
            "program": "${fileDirname}",
            "env": {
                "GOPATH":"D:/Develop/vscodegolang"
            },
            "args": [],
            "showLog": true
        },

        {
            "name": "server",
            "type": "go",
            "request": "launch",
            "mode": "debug",
            "remotePath": "",
            "port": 2345,
            "host": "127.0.0.1",
            "program": "${workspaceRoot}/src/server",
            "env": {
                "GOPATH":"D:/Develop/vscodegolang"
            },
            "args": [],
            "showLog": true
        }
    ]
}

"program"中的"${fileDirname}"是以當(dāng)前選中文件作為啟動(dòng)點(diǎn)

更建議使用"program"的"${workspaceRoot}", 以包名作為啟動(dòng)點(diǎn)的方式進(jìn)行配置

參考鏈接

https://code.visualstudio.com/Docs/editor/debugging