diff --git a/main.go b/main.go
index 63363c9..3e37e08 100644
--- a/main.go
+++ b/main.go
@@ -111,6 +111,17 @@ func loginHandler(w http.ResponseWriter, r *http.Request) {
 	glog.Infof("Created a HTTP session [%s] for user [%s]", httpSession.Values["id"].(string), args.Username)
 }
 
+// 退出（登出）.
+func logoutHandler(w http.ResponseWriter, r *http.Request) {
+	data := map[string]interface{}{"succ": true}
+	defer util.RetJSON(w, r, data)
+
+	httpSession, _ := session.HTTPSession.Get(r, "wide-session")
+
+	httpSession.Options.MaxAge = 0
+	httpSession.Save(r, w)
+}
+
 // Wide 首页.
 func indexHandler(w http.ResponseWriter, r *http.Request) {
 	i18n.Load()
@@ -167,6 +178,7 @@ func main() {
 
 	// IDE
 	http.HandleFunc("/login", handlerWrapper(loginHandler))
+	http.HandleFunc("/logout", handlerWrapper(logoutHandler))
 	http.HandleFunc("/", handlerWrapper(indexHandler))
 
 	// 静态资源
diff --git a/output/outputs.go b/output/outputs.go
index ed30f81..bc2b3f6 100644
--- a/output/outputs.go
+++ b/output/outputs.go
@@ -179,7 +179,6 @@ func BuildHandler(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	// TODO: 会话校验
 	sid := args["sid"].(string)
 
 	filePath := args["file"].(string)
diff --git a/static/js/wide.js b/static/js/wide.js
index d8d7929..7ede54c 100644
--- a/static/js/wide.js
+++ b/static/js/wide.js
@@ -400,7 +400,6 @@ var wide = {
         this.fmt(editors.getCurrentPath(), wide.curEditor);
     },
     saveAllFiles: function () {
-        // TODO: 需要全部保存的接口
         if ($(".menu li.save-all").hasClass("disabled")) {
             return false;
         }
@@ -409,9 +408,6 @@ var wide = {
             this.fmt(tree.fileTree.getNodeByTId(editors.data[i].id).path, editors.data[i].editor);
         }
     },
-    closeFile: function () {
-        // TODO: close file
-    },
     closeAllFiles: function () {
         if ($(".menu li.close-all").hasClass("disabled")) {
             return false;
@@ -427,7 +423,19 @@ var wide = {
         menu.disabled(['save-all', 'close-all', 'run', 'go-get', 'go-install']);
     },
     exit: function () {
-        // TODO: exit
+        var request = newWideRequest();
+
+        $.ajax({
+            type: 'POST',
+            url: '/logout',
+            data: JSON.stringify(request),
+            dataType: "json",
+            success: function (data) {
+                if (data.succ) {
+                    window.location.href = "/login";
+                }
+            }
+        });
     },
     stop: function () {
         if ($(".toolbars .ico-buildrun").length === 1) {