SpringBoot整合mongoDB

最新推荐文章于 2025-05-26 23:15:34 发布

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#spring boot #mongodb #spring

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本文详细介绍如何在SpringBoot项目中整合mongoDB，包括依赖引入、配置、实体类定义、DAO层实现及测试代码示例。

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SpringBoot整合mongoDB

创建一个SpringBoot项目，pom.xml中引入的依赖如下

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-mongodb</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

在application.properties中引入mongoDB的配置

spring.data.mongodb.host=127.0.0.1
spring.data.mongodb.port=27017
spring.data.mongodb.database=test

在启动类父文件夹下创建bean包，在其下创建Book实体类

package cn.itxiaoliu.bean;

public class Book {
    private Integer id;
    private String name;
    private String author;

    @Override
    public String toString() {
        return "Book{" +
                "id=" + id +
                ", name='" + name + '\'' +
                ", author='" + author + '\'' +
                '}';
    }

    public Integer getId() {
        return id;
    }

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

    public String getName() {
        return name;
    }

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

    public String getAuthor() {
        return author;
    }

    public void setAuthor(String author) {
        this.author = author;
    }
}

在启动类父文件夹下创建dao包，在其下创建BookDao.java

public interface BookDao extends MongoRepository<Book,Integer>{
    List<Book> findBookByNameContaining(String name);
}

在测试类中进行测试

@RunWith(SpringRunner.class)
@SpringBootTest
public class MongoApplicationTests {

    @Autowired
    BookDao bookDao;
    @Test
    public void contextLoads() {
        Book book=new Book();
        book.setAuthor("小刘");
        book.setName("java");
        book.setId(4);
        bookDao.insert(book);
    }

    @Test
    public void test1(){
        List<Book> all = bookDao.findAll();
        System.out.println(all);
        List<Book> books = bookDao.findBookByNameContaining("红");
        System.out.println(books);
    }
    @Autowired
    MongoTemplate mongoTemplate;
    @Test
    public void test2(){
        Book book=new Book();
        book.setId(5);
        book.setName("python");
        book.setAuthor("老刘");
        mongoTemplate.insert(book);
        List<Book> list = mongoTemplate.findAll(Book.class);
        System.out.println(list);
    }

}