@PutMapping public Result<?> updateUser(@RequestBody User user){ user.setPassword(null); userService.updateById(user); return Result.success("修改用户成功"); }
时间: 2024-04-18 08:27:51 浏览: 14
这段代码是一个用于更新用户信息的方法,使用了Spring Framework中的@PutMapping注解来处理HTTP的PUT请求。接收到的请求体中包含了要更新的用户信息,其中密码被设置为null以防止密码被更新。
接下来,调用userService的updateById方法来更新用户信息。该方法根据用户的ID将传入的用户信息更新到数据库中。
最后,返回一个Result对象,表示用户信息修改成功。在这里,使用了自定义的Result类,并调用其success方法来创建一个成功的结果对象。字符串"修改用户成功"被作为成功消息返回给客户端。
相关问题
控制层中使用mybatis-plus提供的service层增删改查方法实现以下更新方法 // 根据 UpdateWrapper 条件,更新记录 需要设置sqlset boolean update(Wrapper<T> updateWrapper); // 根据 whereWrapper 条件,更新记录 boolean update(T updateEntity, Wrapper<T> whereWrapper); // 根据 ID 选择修改 boolean updateById(T entity); // 根据ID 批量更新 boolean updateBatchById(Collection<T> entityList); // 根据ID 批量更新 boolean updateBatchById(Collection<T> entityList, int batchSize); 以下是实体类User @Data @ApiModel(value = "User对象", description = "用户信息表") public class User implements Serializable { private static final long serialVersionUID = 1L; @ApiModelProperty("用户id") @TableId(value = "id", type = IdType.AUTO) private Long id; @ApiModelProperty("用户名") private String username; @ApiModelProperty("密码") private String password; @ApiModelProperty("手机号") private String phone; @ApiModelProperty("邮箱") private String email; @ApiModelProperty("地址") private String address; }
在控制层中使用MyBatis-Plus提供的Service层增删改查方法来实现更新方法,可以按照以下方式进行操作:
1. 引入相关的类和注解。
```java
import com.baomidou.mybatisplus.core.conditions.update.UpdateWrapper;
import com.baomidou.mybatisplus.extension.service.IService;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;
```
2. 在控制层中注入Service对象。
```java
@Autowired
private UserService userService;
```
3. 实现更新方法,调用Service层提供的相应方法。
```java
@PutMapping("/{id}")
public boolean updateUser(@PathVariable Long id, @RequestBody User user) {
user.setId(id);
return userService.updateById(user);
}
```
在上述示例中,我们使用`@PutMapping`注解来处理PUT请求,并通过`@PathVariable`注解将路径中的`id`参数绑定到方法参数`Long id`上。我们还通过`@RequestBody`注解将请求体中的数据绑定到方法参数`User user`上。
然后,我们调用Service层的`updateById`方法来更新指定ID的用户信息。
确保您已经在Service层中定义了相应的更新方法,并且已经在配置文件中配置了相关的依赖和Bean。同时,确保您的实体类User使用了MyBatis-Plus的注解。
通过上述方式,您可以在控制层中使用MyBatis-Plus提供的Service层方法来实现更新操作。根据具体的业务需求,您可以修改方法签名和调用逻辑来满足您的实际需求。
springmyboot+batis的代码 1.带有依赖,yml配置,mapper.xml,entity,mapper,service,controller,application 2.要有注释 3.entity为user ,属性为id,username,password
1.带有依赖,yml配置,mapper.xml,entity,mapper,service,controller,application
pom.xml
```xml
<dependencies>
<!-- Spring Boot Starter -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<!-- MyBatis Starter -->
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>2.1.3</version>
</dependency>
<!-- MySQL Connector -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>8.0.23</version>
</dependency>
<!-- Spring Boot Starter Test -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
```
application.yml
```yml
spring:
datasource:
url: jdbc:mysql://localhost:3306/mydb
username: root
password: root
driver-class-name: com.mysql.cj.jdbc.Driver
jpa:
hibernate:
ddl-auto: update
show-sql: true
main:
web-application-type: servlet
mybatis:
mapper-locations: classpath:mapper/*.xml
```
UserMapper.xml
```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.example.mapper.UserMapper">
<resultMap id="UserMap" type="com.example.entity.User">
<id column="id" property="id"/>
<result column="username" property="username"/>
<result column="password" property="password"/>
</resultMap>
<select id="getUserById" resultMap="UserMap" parameterType="int">
SELECT * FROM user WHERE id = #{id}
</select>
<select id="getUserByUsername" resultMap="UserMap" parameterType="string">
SELECT * FROM user WHERE username = #{username}
</select>
<insert id="insertUser" parameterType="com.example.entity.User">
INSERT INTO user(username, password) VALUES (#{username}, #{password})
</insert>
<update id="updateUser" parameterType="com.example.entity.User">
UPDATE user SET username = #{username}, password = #{password} WHERE id = #{id}
</update>
<delete id="deleteUser" parameterType="int">
DELETE FROM user WHERE id = #{id}
</delete>
</mapper>
```
User.java
```java
public class User {
private int id;
private String username;
private String password;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
}
```
UserMapper.java
```java
@Mapper
public interface UserMapper {
User getUserById(int id);
User getUserByUsername(String username);
void insertUser(User user);
void updateUser(User user);
void deleteUser(int id);
}
```
UserService.java
```java
@Service
public class UserService {
@Autowired
private UserMapper userMapper;
public User getUserById(int id) {
return userMapper.getUserById(id);
}
public User getUserByUsername(String username) {
return userMapper.getUserByUsername(username);
}
public void insertUser(User user) {
userMapper.insertUser(user);
}
public void updateUser(User user) {
userMapper.updateUser(user);
}
public void deleteUser(int id) {
userMapper.deleteUser(id);
}
}
```
UserController.java
```java
@RestController
@RequestMapping("/user")
public class UserController {
@Autowired
private UserService userService;
@GetMapping("/{id}")
public User getUserById(@PathVariable int id) {
return userService.getUserById(id);
}
@GetMapping("/username/{username}")
public User getUserByUsername(@PathVariable String username) {
return userService.getUserByUsername(username);
}
@PostMapping("/")
public void insertUser(@RequestBody User user) {
userService.insertUser(user);
}
@PostMapping("/{id}")
public void updateUser(@PathVariable int id, @RequestBody User user) {
user.setId(id);
userService.updateUser(user);
}
@DeleteMapping("/{id}")
public void deleteUser(@PathVariable int id) {
userService.deleteUser(id);
}
}
```
Application.java
```java
@SpringBootApplication
@MapperScan("com.example.mapper")
public class Application {
public static void main(String[] args) {
SpringApplication.run(Application.class, args);
}
}
```
2.要有注释
注释已添加在代码中。
3.entity为user,属性为id,username,password
User.java
```java
public class User {
private int id;
private String username;
private String password;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
}
```