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让AI为你打工,腾讯混元大模型实战篇
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腾讯混元大模型 API 产品,可以实现对话沟通、内容生成、分析理解,可以广泛应用在智能客服、智能营销、角色扮演、广告文案创作、商品描述、剧本创作、简历生成、文章写作、代码生成、数据分析、内容分析等各类场景。本文目标将结合腾讯混元大模型实现,表设计,数据库连接,代码增删查改的实现等功能。👉目录
1 操作教程2 错误排查3 代码测试4 整体总结
01
例如:你是以为优秀的 Java 软件开发人员。您的工作是使用 Java 语言 和 SpringBoot 框架开发应用程序和架构代码。下面我将为你提供一些关于 Java Web 应用程序要求的具体信息,请您根据具体信息,给出解决办法。
请我提供一个基于 SpringBoot 的框架,包含 pom.xml 和 yml 文件的配置,需要连接 MySQL 数据库。
pom.xml
<?xml version="1.0" encoding="UTF-8"?><project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.6.1</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.example</groupId>
<artifactId>spring-boot-mysql</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>spring-boot-mysql</name>
<description>Spring Boot with MySQL</description>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
spring:
datasource:
url: jdbc:mysql://localhost:3306/your_database_name?useSSL=false&serverTimezone=UTC
username: your_database_username
password: your_database_password
driver-class-name: com.mysql.cj.jdbc.Driver
jpa:
hibernate:
ddl-auto: update
properties:
hibernate:
dialect: org.hibernate.dialect.MySQL5InnoDBDialect
show-sql: true
your_database_name
、your_database_username
和your_database_password
替换为您的 MySQL 数据库的实际信息。这个配置将帮助您的 SpringBoot 项目连接到 MySQL 数据库。请帮我基于 MySQL 设计 user 用户表,根据上述的 SpringBoot 框架,采用 MVC 分层的结构,实现 User 表的增删查改操作。
user
表结构:CREATE TABLE `user` (
`id` INT(11) NOT NULL AUTO_INCREMENT,
`username` VARCHAR(50) NOT NULL,
`password` VARCHAR(255) NOT NULL,
`email` VARCHAR(255) NOT NULL,
`created_at` TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
`updated_at` TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
PRIMARY KEY (`id`),
UNIQUE KEY `username_UNIQUE` (`username`),
UNIQUE KEY `email_UNIQUE` (`email`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
User
来表示用户:package com.example.demo.entity;
import javax.persistence.*;
import java.time.LocalDateTime;
@Entity
@Table(name = "user")
public class User {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
@Column(name = "username", nullable = false, unique = true)
private String username;
@Column(name = "password", nullable = false)
private String password;
@Column(name = "email", nullable = false, unique = true)
private String email;
@Column(name = "created_at", nullable = false, columnDefinition = "TIMESTAMP DEFAULT CURRENT_TIMESTAMP")
private LocalDateTime createdAt;
@Column(name = "updated_at", nullable = false, columnDefinition = "TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP")
private LocalDateTime updatedAt;
// Getters and setters
}
UserRepository
接口来处理数据库操作:package com.example.demo.repository;
import com.example.demo.entity.User;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.stereotype.Repository;
@Repository
public interface UserRepository extends JpaRepository<User, Long> {
}
UserService
类来处理业务逻辑:package com.example.demo.service;
import com.example.demo.entity.User;
import com.example.demo.repository.UserRepository;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.util.List;
import java.util.Optional;
@Service
public class UserService {
@Autowired
private UserRepository userRepository;
public List<User> getAllUsers() {
return userRepository.findAll();
}
public Optional<User> getUserById(Long id) {
return userRepository.findById(id);
}
public User createUser(User user) {
return userRepository.save(user);
}
public User updateUser(Long id, User user) {
User existingUser = userRepository.findById(id).orElse(null);
if (existingUser != null) {
existingUser.setUsername(user.getUsername());
existingUser.setPassword(user.getPassword());
existingUser.setEmail(user.getEmail());
return userRepository.save(existingUser);
}
return null;
}
public void deleteUser(Long id) {
userRepository.deleteById(id);
}
}
UserController
类来处理 HTTP 请求:package com.example.demo.controller;
import com.example.demo.entity.User;
import com.example.demo.service.UserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.*;
import java.util.List;
@RestController
@RequestMapping("/api/users")
public class UserController {
@Autowired
private UserService userService;
@GetMapping
public List<User> getAllUsers() {
return userService.getAllUsers();
}
@GetMapping("/{id}")
public ResponseEntity<User> getUserById(@PathVariable Long id) {
return userService.getUserById(id).map(ResponseEntity::ok).orElse(ResponseEntity.notFound().build());
}
@PostMapping
public User createUser(@RequestBody User user) {
return userService.createUser(user);
}
@PutMapping("/{id}")
public ResponseEntity<User> updateUser(@PathVariable Long id, @RequestBody User user) {
User updatedUser = userService.updateUser(id, user);
if (updatedUser != null) {
return ResponseEntity.ok(updatedUser);
} else {
return ResponseEntity.notFound().build();
}
}
@DeleteMapping("/{id}")
public ResponseEntity<Void> deleteUser(@PathVariable Long id) {
userService.deleteUser(id);
return ResponseEntity.noContent().build();
}
}
02
解决办法:
我们启动程序后可能会有些错误提示信息,我们将错误信息作为输入:
以下是一些建议:
createdAt
属性设置了一个有效值。例如:User user = new User();
user.setName("John Doe");
user.setEmail("john.doe@example.com");
user.setCreatedAt(new Date()); // 设置创建时间
@CreationTimestamp
注解自动设置创建时间。例如:@Entity
public class User {
// ... 其他属性
@CreationTimestamp
@Column(name = "created\_at", nullable = false)
private Date createdAt;
// ... getter 和 setter
}
save()
方法。例如:@Service
public class UserService {
@Autowired
private UserRepository userRepository;
public User createUser(User user) {
// 设置创建时间
user.setCreatedAt(new Date());
// 保存实体
return userRepository.save(user);
}
}
Session
对象,确保在调用 persist()
方法之前设置了所有必要的属性。例如:Session session = sessionFactory.openSession();
Transaction transaction = session.beginTransaction();
User user = new User();
user.setName("John Doe");
user.setEmail("john.doe@example.com");
user.setCreatedAt(new Date()); // 设置创建时间
session.persist(user);
transaction.commit();
session.close();
我们根据混元大模型给的答案,对程序进行调整,调整内容如下:
修改 User 实体:
package com.example.demo.entity;
import lombok.Data;
import org.hibernate.annotations.CreationTimestamp;
import javax.persistence.*;
import java.time.LocalDateTime;
@Entity
@Data
@Table(name = "user")
public class User {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
@Column(name = "username", nullable = false, unique = true)
private String username;
@Column(name = "password", nullable = false)
private String password;
@Column(name = "email", nullable = false, unique = true)
private String email;
// @Column(name = "created_at", nullable = false, columnDefinition = "TIMESTAMP DEFAULT CURRENT_TIMESTAMP")
@CreationTimestamp
@Column(name = "created_at", nullable = false)
private LocalDateTime createdAt;
// @Column(name = "updated_at", nullable = false, columnDefinition = "TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP")
@CreationTimestamp
@Column(name = "updated_at", nullable = false)
private LocalDateTime updatedAt;
// Getters and setters
}
03
04
混元大模型是一款非常优秀的大模型,可以提高我们工作效率,同样,我们也要学会使用大模型的正确姿势,对问题的描述也要足够的准确,这样大模型才能更好的为我们解决问题。
迄今为止 AI 工具的出现主要还是为了便利人类,而不是代替人类。加以学习利用,使其成为我们的优秀的工作助手。