first commit

src/com/sipai/activiti/util/UserUtil.java

@@ -0,0 +1,37 @@
+package com.sipai.activiti.util;
+
+import org.activiti.engine.identity.User;
+
+import javax.servlet.http.HttpSession;
+
+/**
+ * 用户工具类
+ *
+ * @author HenryYan
+ */
+public class UserUtil {
+
+    public static final String USER = "user";
+
+    /**
+     * 设置用户到session
+     *
+     * @param session
+     * @param user
+     */
+    public static void saveUserToSession(HttpSession session, User user) {
+        session.setAttribute(USER, user);
+    }
+
+    /**
+     * 从Session获取当前用户信息
+     *
+     * @param session
+     * @return
+     */
+    public static User getUserFromSession(HttpSession session) {
+        Object attribute = session.getAttribute(USER);
+        return attribute == null ? null : (User) attribute;
+    }
+
+}