From 1b164c09e4f7b53db1f7ea7839cce5284ea8c107 Mon Sep 17 00:00:00 2001
From: Arno <15528622+arno-1@user.noreply.gitee.com>
Date: Sun, 12 Oct 2025 00:03:20 +0800
Subject: [PATCH] final commit

---
 doc/README.md                 |  7 ++++---
 src/Base/User.java            | 21 +++++++++++++++++++++
 src/Service/User_service.java |  6 +++---
 3 files changed, 28 insertions(+), 6 deletions(-)

diff --git a/doc/README.md b/doc/README.md
index 4829c5d..6983ea1 100644
--- a/doc/README.md
+++ b/doc/README.md
@@ -26,7 +26,8 @@ Math_learning
 &emsp;&emsp;&emsp;&emsp;|——Exam_service.java&emsp;&emsp;考试服务类  
 &emsp;&emsp;&emsp;&emsp;|——Deal_file.java&emsp;&emsp;可选功能：保存试卷为文件  
 &emsp;&emsp;|——View&emsp;&emsp;前端类包  
-
+&emsp;&emsp;&emsp;&emsp;|——MainFrame.java&emsp;&emsp;前端界面  
+&emsp;&emsp;|——Math_learning_app.java&emsp;&emsp;主类  
 |——doc&emsp;&emsp;说明文档  
 &emsp;&emsp;|——README.md
 
@@ -40,11 +41,11 @@ Math_learning
 4. 其他邮箱配置方法具体见官方说明。
 
 ## 用户信息
-用户信息保存在本地，用户/用户信息.txt(运行时会产生)
+用户信息保存在本地，用户/用户信息.txt(运行时会产生)，密码已加密。
 
 ## 运行环境
 可执行文件：Math_Learning.jar（依赖已经打包）  
-Windows&emsp;&emsp;UTF-8编码&emsp;&emsp;
+本软件使用java 23编译，请使用java 17及以上版本运行&emsp;&emsp;UTF-8编码&emsp;&emsp;
 
 ---
 软件2302  
diff --git a/src/Base/User.java b/src/Base/User.java
index 0bb324b..08fe956 100644
--- a/src/Base/User.java
+++ b/src/Base/User.java
@@ -1,5 +1,8 @@
 package Base;
 
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+
 public class User {
     private String email;
     private String id;
@@ -31,4 +34,22 @@ public class User {
         }
         return hasUpper && hasLower && hasDigit;
     }
+
+    public static String hash_pwd(String password){
+        try {
+            MessageDigest digest = MessageDigest.getInstance("SHA-256");
+            byte[] hashBytes = digest.digest(password.getBytes(java.nio.charset.StandardCharsets.UTF_8));
+            StringBuilder sb = new StringBuilder();
+            for (byte b : hashBytes) {
+                sb.append(String.format("%02x", b));
+            }
+            return sb.toString();
+        } catch (NoSuchAlgorithmException e) {
+            throw new RuntimeException("无法创建SHA-256实例", e);
+        }
+    }
+
+    public static boolean check_hash_pwd(String pwd,String hash_pwd){
+        return hash_pwd(pwd).equals(hash_pwd);
+    }
 }
diff --git a/src/Service/User_service.java b/src/Service/User_service.java
index b0ea8b0..8cac970 100644
--- a/src/Service/User_service.java
+++ b/src/Service/User_service.java
@@ -41,7 +41,7 @@ public class User_service {
                 return "密码长6-20位，至少包含大小写字母和数字";
             }
             User new_one=new User(email);
-            new_one.set_password(pwd);
+            new_one.set_password(User.hash_pwd(pwd));
             new_one.set_id(id);
             if (find_user_i(id)!=null){
                 return "用户名重复";
@@ -63,7 +63,7 @@ public class User_service {
         if (u==null){
             return "请先注册";
         }
-        if (u.get_password().equals(pwd)){
+        if (User.check_hash_pwd(pwd,u.get_password())){
             return "登陆成功";
         }
         return "密码有误";
@@ -74,7 +74,7 @@ public class User_service {
         if (user == null) {
             return "用户不存在";
         }
-        if (!user.get_password().equals(oldPassword)) {
+        if (!User.check_hash_pwd(oldPassword,user.get_password())) {
             return "原密码不正确";
         }
         if (oldPassword.equals(newPassword)){