java - 如何使用 Spring-data-JPA 使用 crudRepository 在 MySQL 数据库中附加多条记录？

Question

我正在使用 POST 方法一条一条地插入新记录，但我期待一次推送多条记录。我的单插入代码如下:

@RequestMapping(path="/users")
public class MainController {
@Autowired
private UserRepository userRepository;

@PostMapping(path="/add", consumes="application/json", produces = "application/json")
@Transactional(propagation=Propagation.REQUIRED)
public @ResponseBody String addNewUser(@RequestBody UserFormDto userForm) {
    User n = new User();
    n.setName(userForm.getName());
    n.setEmail(userForm.getEmail());
    userRepository.save(n);
    return "\n\t\t Saved";
}
}

实体类如下:任何帮助将不胜感激

package hello;
import javax.persistence.*;
import javax.persistence.Table;
import org.hibernate.validator.constraints.Email;

@SuppressWarnings("unused")
@Entity
public class User {

private String name;
private String email;
@Id
@GeneratedValue(strategy=GenerationType.AUTO)
private Long id;

public User() {
}

public User(String email,String name) {
    super();
    this.name = name;
    this.email = email;
}

public Long getId() {
    return id;
}

public void setId(Long id) {
    this.id = id;
}

public String getName() {
    return name;
}

public void setName(String name) {
    this.name = name;
}

public String getEmail() {
    return email;
}

public void setEmail(String email) {
    this.email = email;
}
}

Answer 1

您需要批量插入更新。检查这个Spring Data JPA performnace issue with batch save 和这个 https://frightanic.com/software-development/jpa-batch-inserts/