@DuplicatedUsernameConstraint

src/main/java/com/wzy/tacocloud/TacoCloudApplication.java

@@ -2,8 +2,9 @@ package com.wzy.tacocloud;
 
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.boot.autoconfigure.orm.jpa.HibernateJpaAutoConfiguration;
 
-@SpringBootApplication // 表明这是一个 Spring 引导应用程序
+@SpringBootApplication
 public class TacoCloudApplication {
 
     public static void main(String[] args) {

src/main/java/com/wzy/tacocloud/application/user/DuplicatedUsernameConstraint.java

+package com.wzy.tacocloud.application.user;
+
+import javax.validation.Constraint;
+import javax.validation.Payload;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+
+@Constraint(validatedBy = com.wzy.tacocloud.application.user.DuplicatedUsernameValidator.class)
+@Retention(RetentionPolicy.RUNTIME)
+@interface DuplicatedUsernameConstraint {
+  String message() default "用户名重复";
+
+  Class<?>[] groups() default {};
+
+  Class<? extends Payload>[] payload() default {};
+}

src/main/java/com/wzy/tacocloud/application/user/DuplicatedUsernameValidator.java

+package com.wzy.tacocloud.application.user;
+
+import com.wzy.tacocloud.core.user.UserRepository;
+import org.springframework.beans.factory.annotation.Autowired;
+
+import javax.validation.ConstraintValidator;
+import javax.validation.ConstraintValidatorContext;
+
+class DuplicatedUsernameValidator
+    implements ConstraintValidator<DuplicatedUsernameConstraint, String> {
+
+  @Autowired private UserRepository userRepository;
+
+  @Override
+  public boolean isValid(String value, ConstraintValidatorContext context) {
+    return (value == null || value.isEmpty()) || !userRepository.findByUsername(value).isPresent();
+  }
+}

src/main/java/com/wzy/tacocloud/application/user/RegisterParam.java

@@ -12,6 +12,7 @@ import javax.validation.constraints.NotBlank;
 @AllArgsConstructor
 @NoArgsConstructor
 public class RegisterParam {
+  @DuplicatedUsernameConstraint
   @NotBlank(message = "用户名不能为空")
   private String username;
 

src/main/java/com/wzy/tacocloud/application/user/UserService.java

@@ -12,22 +12,25 @@ import javax.validation.Valid;
 @Service
 @Validated
 public class UserService {
-//  private final UserRepository userRepository;
+  private final UserRepository userRepository;
 //  private final EncryptService encryptService;
-//
-//  @Autowired
-//  public UserService(
-//          UserRepository userRepository,
-//          EncryptService encryptService) {
-//    this.userRepository = userRepository;
+
+  @Autowired
+  public UserService(
+          UserRepository userRepository
+//          ,EncryptService encryptService
+  ) {
+    this.userRepository = userRepository;
 //    this.encryptService = encryptService;
-//  }
+  }
 
   public User createUser(@Valid RegisterParam registerParam) {
-    return new User(
+    final User user = new User(
             registerParam.getUsername(),
             registerParam.getPassword()
     );
+    userRepository.save(user);
+    return user;
   }
 
 }

src/main/java/com/wzy/tacocloud/controller/UserController.java

@@ -17,8 +17,9 @@ import org.springframework.web.bind.annotation.RestController;
 import java.util.HashMap;
 import java.util.Map;
 
+import static org.springframework.web.bind.annotation.RequestMethod.POST;
+
 @RestController
-@RequestMapping("/users")
 public class UserController {
 //    private final UserRepository userRepository;
     private final UserService userService;
@@ -33,7 +34,7 @@ public class UserController {
         this.jwtService = jwtService;
     }
 
-    @RequestMapping("/register")
+    @RequestMapping(path = "/register", method = POST)
     public ResponseEntity<?> createUser(@Valid @RequestBody RegisterParam registerParam) {
         User user = userService.createUser(registerParam);
         UserData userData = userQueryService.findById(user.getId()).orElse(null);

src/main/java/com/wzy/tacocloud/core/user/User.java

 package com.wzy.tacocloud.core.user;
 
 import com.wzy.tacocloud.Util;
+import java.util.UUID;
 import lombok.EqualsAndHashCode;
 import lombok.Getter;
 import lombok.NoArgsConstructor;
 
-import java.util.UUID;
-
 @Getter
 @NoArgsConstructor
 @EqualsAndHashCode(of = {"id"})

src/main/java/com/wzy/tacocloud/infrastructure/mybatis/mapper/UserMapper.java

@@ -8,5 +8,6 @@ import org.apache.ibatis.annotations.Param;
 public interface UserMapper {
     void insert(@Param("user") User user);
     User findById(@Param("id") String id);
+    User findByUsername(@Param("username") String username);
     void update(@Param("user") User user);
 }
\ No newline at end of file

src/main/java/com/wzy/tacocloud/infrastructure/repository/MyBatisUserRepository.java

 package com.wzy.tacocloud.infrastructure.repository;
 
-import com.wzy.tacocloud.core.user.UserRepository;
 import com.wzy.tacocloud.core.user.User;
+import com.wzy.tacocloud.core.user.UserRepository;
 import com.wzy.tacocloud.infrastructure.mybatis.mapper.UserMapper;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Repository;
@@ -28,11 +28,11 @@ public class MyBatisUserRepository implements UserRepository {
 
     @Override
     public Optional<User> findById(String id) {
-        return Optional.empty();
+        return Optional.ofNullable(userMapper.findById(id));
     }
 
     @Override
     public Optional<User> findByUsername(String username) {
-        return Optional.empty();
+        return Optional.ofNullable(userMapper.findByUsername(username));
     }
 }

src/main/resources/application.yml

@@ -6,9 +6,10 @@ spring:
     username: root
     password: 123
 
-mvc:
-  static-path-pattern: /static/**  #配置静态路径
-
 mybatis:
-  type-aliases-package: com.wzy.tacocloud.entity
-  mapper-locations: classpath:com/wzy/tacocloud/mapper/*.xml
\ No newline at end of file
+  type-handlers-package: com.wzy.tacocloud.infrastructure.mybatis
+  mapper-locations: mapper/*.xml
+
+jwt:
+  secret: nRvyYC4soFxBdZ-F-5Nnzz5USXstR1YylsTd-mA0aKtI9HUlriGrtkf-TiuDapkLiUCogO3JOK7kwZisrHp6wA
+  sessionTime: 86400
\ No newline at end of file

src/main/resources/mapper/UserMapper.xml

 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
-<mapper namespace="day2.demo.test.mapper.UserMapper">
-    <select id="selectUserById" resultType="User" parameterType="int">
-        SELECT * from u where id = #{id}
+<mapper namespace="com.wzy.tacocloud.infrastructure.mybatis.mapper.UserMapper">
+
+    <select id="findById" resultMap="user">
+        select id, username, password
+        from users
+        where id = #{id}
     </select>
-    <select id="selectUserByName" resultType="User" parameterType="String">
-        SELECT * from u where NAME = #{NAME}
+
+    <select id="findByUsername" resultMap="user">
+        select * from users where username = #{username}
     </select>
-    <insert id="insertUser" parameterType="User">
-        insert into  u(name,password) values(#{name},#{password})
+
+    <update id="update">
+        update users
+        <set>
+            <if test="user.username != ''">username = #{user.username},</if>
+            <if test="user.password != ''">password = #{user.password},</if>
+        </set>
+        where id = #{user.id}
+    </update>
+
+    <insert id="insert">
+        insert into users (id, username, password)
+        values (#{user.id},
+                #{user.username},
+                #{user.password})
     </insert>
+
+    <resultMap id="user" type="com.wzy.tacocloud.core.user.User" >
+        <id column="id" property="id"/>
+        <result column="username" property="username"/>
+        <result column="password" property="password"/>
+    </resultMap>
 </mapper>
\ No newline at end of file

src/main/resources/mapper/UserReadService.xml

+<?xml version="1.0" encoding="UTF-8" ?>
+<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
+<mapper namespace="com.wzy.tacocloud.infrastructure.mybatis.readservice.UserReadService">
+    <select id="findByUsername" resultType="com.wzy.tacocloud.application.data.UserData">
+        select * from users where username = #{username}
+    </select>
+    <select id="findById" resultType="com.wzy.tacocloud.application.data.UserData">
+        select * from users where id = #{id}
+    </select>
+</mapper>
\ No newline at end of file