diff --git a/pom.xml b/pom.xml
index 96abc55..c966296 100644
--- a/pom.xml
+++ b/pom.xml
@@ -49,6 +49,16 @@
             <artifactId>spring-security-test</artifactId>
             <scope>test</scope>
         </dependency>
+
+        <dependency>
+            <groupId>mysql</groupId>
+            <artifactId>mysql-connector-java</artifactId>
+            <scope>runtime</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-data-jpa</artifactId>
+        </dependency>
     </dependencies>
 
     <build>
diff --git a/readme.md b/readme.md
index 37ccfbe..0d28f4d 100644
--- a/readme.md
+++ b/readme.md
@@ -1,4 +1,8 @@
 端口：8081
 [http://localhost:8081](http://localhost:8081])
 
-表单登录地址：http://localhost:8081/login.html
\ No newline at end of file
+表单登录地址：http://localhost:8081/login.html
+
+账号:admin,user
+
+密码:1234
\ No newline at end of file
diff --git a/src/main/java/com/al/_01springsecuritydemo01/config/SecurityConfig.java b/src/main/java/com/al/_01springsecuritydemo01/config/SecurityConfig.java
index 4026f71..c7f4223 100644
--- a/src/main/java/com/al/_01springsecuritydemo01/config/SecurityConfig.java
+++ b/src/main/java/com/al/_01springsecuritydemo01/config/SecurityConfig.java
@@ -11,6 +11,8 @@
 import org.springframework.security.web.authentication.AuthenticationFailureHandler;
 import org.springframework.security.web.authentication.AuthenticationSuccessHandler;
 
+import com.al._01springsecuritydemo01.service.UserDetailService;
+
 @EnableWebSecurity
 // @Configuration 被包括在上面的注解了
 public class SecurityConfig extends WebSecurityConfigurerAdapter {
@@ -20,6 +22,9 @@ public class SecurityConfig extends WebSecurityConfigurerAdapter {
     @Autowired
     private AuthenticationFailureHandler failureHandler;
 
+    @Autowired
+    private UserDetailService userDetailService;
+
     @Bean
     public PasswordEncoder passwordEncoder() {
         return new BCryptPasswordEncoder();
@@ -57,6 +62,10 @@ protected void configure(HttpSecurity http) throws Exception {
 
     @Override
     protected void configure(AuthenticationManagerBuilder auth) throws Exception {
+        auth.userDetailsService(userDetailService)
+                .passwordEncoder(passwordEncoder());
+        System.out.println(passwordEncoder().encode("1234"));
+        /*
         auth.inMemoryAuthentication()
                 .withUser("user")
                 .password(passwordEncoder().encode("1234"))
@@ -70,5 +79,6 @@ protected void configure(AuthenticationManagerBuilder auth) throws Exception {
                 .and()
                 .passwordEncoder(passwordEncoder());
         ;
+         */
     }
 }
diff --git a/src/main/java/com/al/_01springsecuritydemo01/dao/UserDao.java b/src/main/java/com/al/_01springsecuritydemo01/dao/UserDao.java
new file mode 100644
index 0000000..5d91942
--- /dev/null
+++ b/src/main/java/com/al/_01springsecuritydemo01/dao/UserDao.java
@@ -0,0 +1,10 @@
+package com.al._01springsecuritydemo01.dao;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.stereotype.Repository;
+
+import com.al._01springsecuritydemo01.entity.User;
+
+@Repository
+public interface UserDao extends JpaRepository<User, Long> {
+}
diff --git a/src/main/java/com/al/_01springsecuritydemo01/entity/User.java b/src/main/java/com/al/_01springsecuritydemo01/entity/User.java
new file mode 100644
index 0000000..8624b38
--- /dev/null
+++ b/src/main/java/com/al/_01springsecuritydemo01/entity/User.java
@@ -0,0 +1,80 @@
+package com.al._01springsecuritydemo01.entity;
+
+import java.util.Collection;
+import java.util.List;
+
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+import javax.persistence.Table;
+import javax.persistence.Transient;
+
+import org.springframework.security.core.GrantedAuthority;
+import org.springframework.security.core.userdetails.UserDetails;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+@Entity
+@Table(name = "users")
+@Data
+@AllArgsConstructor
+@NoArgsConstructor
+public class User implements UserDetails {
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    @Column
+    private Long userId;
+
+    @Column(name = "user_name")
+    private String userName;
+
+    @Column(name = "password")
+    private String password;
+
+    @Column(name = "status")
+    private String status;
+
+    @Column(name = "roles")
+    private String roles;
+
+    @Transient
+    private List<GrantedAuthority> authorities;
+
+    public void setAuthorities(List<GrantedAuthority> authorities) {
+        this.authorities = authorities;
+    }
+
+    @Override
+    public Collection<? extends GrantedAuthority> getAuthorities() {
+        return this.authorities;
+    }
+
+    @Override
+    public String getUsername() {
+        return this.userName;
+    }
+
+    @Override
+    public boolean isAccountNonExpired() {
+        return true;
+    }
+
+    @Override
+    public boolean isAccountNonLocked() {
+        return true;
+    }
+
+    @Override
+    public boolean isCredentialsNonExpired() {
+        return true;
+    }
+
+    @Override
+    public boolean isEnabled() {
+        return true;
+    }
+}
diff --git a/src/main/java/com/al/_01springsecuritydemo01/service/UserDetailService.java b/src/main/java/com/al/_01springsecuritydemo01/service/UserDetailService.java
new file mode 100644
index 0000000..b32d84b
--- /dev/null
+++ b/src/main/java/com/al/_01springsecuritydemo01/service/UserDetailService.java
@@ -0,0 +1,27 @@
+package com.al._01springsecuritydemo01.service;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.security.core.authority.AuthorityUtils;
+import org.springframework.security.core.userdetails.UserDetails;
+import org.springframework.security.core.userdetails.UserDetailsService;
+import org.springframework.security.core.userdetails.UsernameNotFoundException;
+import org.springframework.stereotype.Service;
+
+import com.al._01springsecuritydemo01.entity.User;
+
+@Service
+public class UserDetailService implements UserDetailsService {
+    @Autowired
+    private UserService userService;
+
+    @Override
+    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
+        User user = userService.selectUserByUserName(username);
+        if (user == null) {
+            throw new UsernameNotFoundException("用户" + user.getUsername() + "不存在");
+        }
+        // 设置权限
+        user.setAuthorities(AuthorityUtils.commaSeparatedStringToAuthorityList(user.getRoles()));
+        return user;
+    }
+}
diff --git a/src/main/java/com/al/_01springsecuritydemo01/service/UserService.java b/src/main/java/com/al/_01springsecuritydemo01/service/UserService.java
new file mode 100644
index 0000000..df6f989
--- /dev/null
+++ b/src/main/java/com/al/_01springsecuritydemo01/service/UserService.java
@@ -0,0 +1,7 @@
+package com.al._01springsecuritydemo01.service;
+
+import com.al._01springsecuritydemo01.entity.User;
+
+public interface UserService {
+    public User selectUserByUserName(String username);
+}
diff --git a/src/main/java/com/al/_01springsecuritydemo01/service/UserServiceImpl.java b/src/main/java/com/al/_01springsecuritydemo01/service/UserServiceImpl.java
new file mode 100644
index 0000000..a6b6b80
--- /dev/null
+++ b/src/main/java/com/al/_01springsecuritydemo01/service/UserServiceImpl.java
@@ -0,0 +1,24 @@
+package com.al._01springsecuritydemo01.service;
+
+import java.util.List;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.data.domain.Example;
+import org.springframework.stereotype.Service;
+
+import com.al._01springsecuritydemo01.dao.UserDao;
+import com.al._01springsecuritydemo01.entity.User;
+
+@Service
+public class UserServiceImpl implements UserService {
+    @Autowired
+    private UserDao userDao;
+
+    @Override
+    public User selectUserByUserName(String username) {
+        User user = new User();
+        user.setUserName(username);
+        List<User> list = userDao.findAll(Example.of(user));
+        return list.isEmpty() ? null : list.get(0);
+    }
+}
diff --git a/src/main/resources/application.properties b/src/main/resources/application.properties
index bafddce..30ba351 100644
--- a/src/main/resources/application.properties
+++ b/src/main/resources/application.properties
@@ -1 +1,5 @@
-server.port=8081
\ No newline at end of file
+server.port=8081
+spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
+spring.datasource.username=root
+spring.datasource.password=1234
+spring.datasource.url=jdbc:mysql://localhost:3306/jwt_demo?serverTimezone=GMT%2B8&characterEncoding=utf-8
\ No newline at end of file