[{"data":1,"prerenderedAt":339},["ShallowReactive",2],{"blog-article-\u002Ftw\u002Fblog\u002Fclear-jetbrains-cache":3},{"id":4,"title":5,"author":6,"body":7,"category":319,"cover":320,"coverAlt":321,"description":322,"draft":323,"extension":324,"meta":325,"navigation":326,"path":327,"publishedAt":328,"seo":329,"stem":330,"tags":331,"topics":335,"translationKey":337,"updatedAt":328,"__hash__":338},"articles_tw\u002Ftw\u002Fblog\u002Fclear-jetbrains-cache.md","如何清理 IntelliJ IDEA 快取","Harry",{"type":8,"value":9,"toc":311},"minimark",[10,14,21,30,35,38,50,61,64,81,84,103,111,115,127,180,190,205,208,239,243,254,266,269,273,276,298,304],[11,12,13],"p",{},"專案沒增加多少，C 槽卻越來越滿，IDEA 的快取也值得檢查。開啟過的專案會留下索引與暫存資料，這些檔案通常不在原始碼資料夾裡，關閉專案也不會一起清掉。",[11,15,16,20],{},[17,18,19],"strong",{},"清理 IDEA 快取，不必解除安裝軟體，也不用刪除專案或重設設定。"," 儲存工作、關閉 IDE 後，只處理已經確認的快取。下次開啟專案時，IDEA 可能需要重新建立索引，程式碼補全與跳轉等功能要等索引就緒才能正常使用。",[11,22,23,24,29],{},"不想自己翻 AppData，可以用 ",[25,26,28],"a",{"href":27},"\u002Ftw","MangoDisk"," 掃描 JetBrains 快取，把大小和路徑列出來，再選擇要清理的部分。免費開源，不必註冊或登入。",[31,32,34],"h2",{"id":33},"用-mangodisk-查看-idea-快取占用","用 MangoDisk 查看 IDEA 快取占用",[11,36,37],{},"IDEA 的內建快取清理功能適合處理索引問題；如果目的是騰出空間，先看快取放在哪裡、占了多少會更實用。MangoDisk 會集中顯示支援的快取資料夾，不必逐一開啟資料夾、查看內容大小。",[11,39,40,41,45,46,49],{},"開啟",[25,42,44],{"href":43},"\u002Ftw\u002Fdocs\u002Ffeatures\u002Fdeep-clean","深度清理","，完成標準掃描後，在開發工具中找到 ",[17,47,48],{},"JetBrains IDE 快取","，展開查看大小與路徑。電腦上裝過不同版本，或同時使用 PyCharm、WebStorm 時，先分清楚哪些屬於 IDEA，不必整組一起清掉。",[11,51,52],{},[53,54],"img",{"alt":55,"decoding":56,"height":57,"loading":58,"src":59,"width":60},"MangoDisk Windows 版深度清理畫面，依分類查看快取大小與路徑並選取清理內容","async",1171,"lazy","https:\u002F\u002Fassets.mangodisk.app\u002Fimages\u002Fscreenshots\u002Fwindows\u002Ftw\u002Flight-01-deep-cleanup.jpg",1746,[11,62,63],{},"準備清理時：",[65,66,67,71,78],"ol",{},[68,69,70],"li",{},"儲存程式碼，停止建置工作，關閉 IDEA 和其他正在使用的 JetBrains IDE。",[68,72,73,74,77],{},"選擇",[17,75,76],{},"全部取消選取","，只勾選已經檢查過的 IDEA 快取。",[68,79,80],{},"確認預計可釋放空間與選取的路徑，再執行清理。",[11,82,83],{},"單純掃描不會刪除檔案。JetBrains 快取不需要全部勾選；清理後可能要重新建立，先看大小再決定值不值得清。",[11,85,86,87,90,91,97,98],{},"MangoDisk 在 Windows 上處理預設位置中的部分快取、索引、暫存檔、記錄檔與編譯服務資料；Mac 上則處理部分可重新產生的快取子資料夾。兩邊都排除專案、設定、外掛和 ",[17,88,89],{},"Local History（本機歷程記錄）","，不是清空整個 JetBrains 資料夾。",[25,92,96],{"href":93,"rel":94},"https:\u002F\u002Fgithub.com\u002Fharry0703\u002FMangoDisk\u002Fblob\u002Fv1.1.6\u002Fsrc-tauri\u002Fcrates\u002Fmangodisk-core\u002Frules\u002Ffilesystem\u002Fwindows\u002Fdevelopment\u002Fdev.jetbrains-cache.toml",[95],"nofollow","Windows 清理規則"," · ",[25,99,102],{"href":100,"rel":101},"https:\u002F\u002Fgithub.com\u002Fharry0703\u002FMangoDisk\u002Fblob\u002Fv1.1.6\u002Fsrc-tauri\u002Fcrates\u002Fmangodisk-core\u002Frules\u002Ffilesystem\u002Fmacos\u002Fdevelopment\u002Fdev.jetbrains-cache.toml",[95],"Mac 清理規則",[11,104,105,106,110],{},"清理會永久刪除選取的內容，不經過資源回收筒或垃圾桶。還在排查問題時，先保留相關記錄檔；還原限制見",[25,107,109],{"href":108},"\u002Ftw\u002Fdocs\u002Fsafety","安全清理指南","。",[31,112,114],{"id":113},"idea-快取放在哪裡","IDEA 快取放在哪裡",[11,116,117,118,122,123,126],{},"預設位置如下，",[119,120,121],"code",{},"\u003C版本資料夾>"," 代表實際安裝版本的資料夾，例如 ",[119,124,125],{},"IntelliJIdea2026.2","：",[128,129,130,146],"table",{},[131,132,133],"thead",{},[134,135,136,140,143],"tr",{},[137,138,139],"th",{},"系統",[137,141,142],{},"快取所在的系統目錄",[137,144,145],{},"開啟方式",[147,148,149,163],"tbody",{},[134,150,151,155,160],{},[152,153,154],"td",{},"Windows",[152,156,157],{},[119,158,159],{},"%LOCALAPPDATA%\\JetBrains\\\u003C版本資料夾>",[152,161,162],{},"貼到檔案總管的位址列",[134,164,165,168,173],{},[152,166,167],{},"Mac",[152,169,170],{},[119,171,172],{},"~\u002FLibrary\u002FCaches\u002FJetBrains\u002F\u003C版本資料夾>",[152,174,175,176,179],{},"在 Finder 按 ",[119,177,178],{},"Shift + Command + G","，貼上路徑",[11,181,182,185,186,189],{},[17,183,184],{},"這些是外層資料夾，不是可以整包刪掉的快取。"," IDEA 的系統目錄裡也可能有 Local History，別因為路徑裡有 ",[119,187,188],{},"Caches"," 就全部清空。",[11,191,192,193,196,197,110,200],{},"如果改過儲存位置，可以到 IDEA 的 ",[17,194,195],{},"Help → Diagnostic Tools → Special Files and Folders"," 查看實際路徑。MangoDisk 的標準掃描辨識已知預設位置，不一定涵蓋自訂的 ",[119,198,199],{},"idea.system.path",[25,201,204],{"href":202,"rel":203},"https:\u002F\u002Fwww.jetbrains.com\u002Fhelp\u002Fidea\u002Fdirectories-used-by-the-ide-to-store-settings-caches-plugins-and-logs.html",[95],"JetBrains 目錄說明",[11,206,207],{},"以下內容要保留：",[209,210,211,220,233],"ul",{},[68,212,213,219],{},[17,214,215,216],{},"專案原始碼與 ",[119,217,218],{},".idea","：後者存放專案設定，不是可隨意刪除的 IDE 快取。",[68,221,222,225,226,229,230,110],{},[17,223,224],{},"設定與外掛資料夾","：Windows 通常在 ",[119,227,228],{},"%APPDATA%\\JetBrains","，Mac 通常在 ",[119,231,232],{},"~\u002FLibrary\u002FApplication Support\u002FJetBrains",[68,234,235,238],{},[17,236,237],{},"Local History","：可能保留尚未提交到 Git 的修改，不能當成一般快取清掉。",[31,240,242],{"id":241},"使用-idea-內建功能清理快取","使用 IDEA 內建功能清理快取",[11,244,245,246,249,250,253],{},"如果遇到程式碼跳轉失靈、索引異常，可以先開啟 ",[17,247,248],{},"File → Invalidate Caches…","，再選擇 ",[17,251,252],{},"Invalidate and Restart","。IDEA 會在重新啟動時清理目前版本的專案快取，之後依需要重新建立。",[11,255,256,257,260,261],{},"不要順手勾選 ",[17,258,259],{},"Clear file system cache and Local History","，這個額外選項會連本機歷程記錄一起刪除。一般快取清理預設保留 Local History；也不必為了騰空間，勾選清除內建瀏覽器 Cookie 等無關選項。",[25,262,265],{"href":263,"rel":264},"https:\u002F\u002Fwww.jetbrains.com\u002Fhelp\u002Fidea\u002Finvalidate-caches.html",[95],"JetBrains 快取清理說明",[11,267,268],{},"只想修復目前 IDEA 的索引，用內建功能就可以。想比較不同版本、不同 IDE 的快取大小，或一起查看其他開發工具，可以用 MangoDisk 集中檢查，省下逐一找資料夾的時間。",[31,270,272],{"id":271},"清完-idea-快取空間還是不夠","清完 IDEA 快取，空間還是不夠",[11,274,275],{},"專案的建置產物、Gradle 相依套件和 npm 下載快取也會占用空間，不會隨著 IDEA 快取一起清掉。",[11,277,278,279,283,284,287,288,292,293,297],{},"用 MangoDisk 的",[25,280,282],{"href":281},"\u002Ftw\u002Fdocs\u002Ffeatures\u002Fdisk-analysis","磁碟空間分析","查看專案資料夾，先找出占用最大的地方。主要占用在 ",[119,285,286],{},".gradle"," 時，可以接著看 ",[25,289,291],{"href":290},"\u002Ftw\u002Fblog\u002Fclear-gradle-cache","Gradle 快取清理","；Node.js 專案則參考 ",[25,294,296],{"href":295},"\u002Ftw\u002Fblog\u002Fclean-npm-cache","npm 快取與專案相依套件的差別","。別一直清同一小塊快取，卻漏掉真正占空間的資料夾。",[11,299,300,303],{},[25,301,302],{"href":27},"下載 MangoDisk","，先看看 IDEA 和其他開發工具的快取占了多少。確認不需要的再清理，還在趕進度的專案也可以先保留快取。",[11,305,306,307,110],{},"延伸閱讀：",[25,308,310],{"href":309},"\u002Ftw\u002Fblog\u002Ftopics\u002Fdeveloper-cleanup","開發者磁碟清理指南",{"title":312,"searchDepth":313,"depth":313,"links":314},"",2,[315,316,317,318],{"id":33,"depth":313,"text":34},{"id":113,"depth":313,"text":114},{"id":241,"depth":313,"text":242},{"id":271,"depth":313,"text":272},"開發者磁碟清理","\u002Fimages\u002Fblog\u002Fclear-jetbrains-cache.webp","IntelliJ IDEA 圖示旁的橘色刷子掃走快取方塊，另一側的專案資料夾保持完整","用 MangoDisk 查看 Windows 和 Mac 上的 IDEA 快取大小與路徑，選擇需要清理的項目，保留專案、設定及本機歷程記錄。附 IntelliJ IDEA 內建清理方式與快取位置。",false,"md",{},true,"\u002Ftw\u002Fblog\u002Fclear-jetbrains-cache","2026-10-07T10:25:00+08:00",{"title":5,"description":322},"tw\u002Fblog\u002Fclear-jetbrains-cache",[332,333,334],"IDEA 快取清理","IntelliJ IDEA","JetBrains 快取",[336],"developer-cleanup","article-clear-jetbrains-cache","3xZzvxCsTYUjvCom0LPMk2QbTkU3Q2FxJ8dsxE4V0R0",1791340984146]