1.0

旧的java项目/itcast/server/service/UserService.java

@@ -0,0 +1,15 @@
+package cn.itcast.server.service;
+
+/**
+ * 用户管理接口
+ */
+public interface UserService {
+
+    /**
+     * 登录
+     * @param username 用户名
+     * @param password 密码
+     * @return 登录成功返回 true, 否则返回 false
+     */
+    boolean login(String username, String password);
+}

旧的java项目/itcast/server/service/UserServiceFactory.java

@@ -0,0 +1,10 @@
+package cn.itcast.server.service;
+
+public abstract class UserServiceFactory {
+
+    private static UserService userService = new UserServiceMemoryImpl();
+
+    public static UserService getUserService() {
+        return userService;
+    }
+}

旧的java项目/itcast/server/service/UserServiceMemoryImpl.java

@@ -0,0 +1,25 @@
+package cn.itcast.server.service;
+
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+
+public class UserServiceMemoryImpl implements UserService {
+    private Map<String, String> allUserMap = new ConcurrentHashMap<>();
+
+    {
+        allUserMap.put("zhangsan", "123");
+        allUserMap.put("lisi", "123");
+        allUserMap.put("wangwu", "123");
+        allUserMap.put("zhaoliu", "123");
+        allUserMap.put("qianqi", "123");
+    }
+
+    @Override
+    public boolean login(String username, String password) {
+        String pass = allUserMap.get(username);
+        if (pass == null) {
+            return false;
+        }
+        return pass.equals(password);
+    }
+}