1、基于MongoRepository操作 mongodb
配置mongodb上一个文件有提现，这里就不写了。
Docker创建一个mongodb实例，并用springboot连接 mongodb进行读写文件-CSDN博客
java
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-mongodb</artifactId>
</dependency>
</dependencies>
java
@Data
@Document(collection = "User")
public class User {
@Id
private String id;
private String name;
private Integer age;
private String email;
private String createDate;
}
java
@Repository
public interface UserRepository extends MongoRepository<User, String> {
}
java
@ActiveProfiles("test")
@SpringBootTest
public class MongoRepositoryTest {
@Autowired
private UserRepository userRepository;
@Test
public void createTest() {
User user = new User();
user.setAge(20);
user.setName("张三");
user.setEmail("[email protected]");
User user1 = userRepository.save(user);
System.out.println(user1);
}
@Test
public void findAllTest() {
List<User> list = userRepository.findAll();
System.out.println(list);
}
@Test
public void findByIdTest() {
Optional<User> optional = userRepository.findById("6195b9a5c6e3b8f8a0e8c6e3");
optional.ifPresent(System.out::println);
}
@Test
public void findConditionTest() {
//name="张三" and age = 20
User user = new User();
user.setAge(20);
user.setName("张三");
Example<User> example = Example.of(user);
userRepository.findAll(example);
}
@Test
public void findLikeTest() {
//设置模糊查询规则
ExampleMatcher matcher = ExampleMatcher.matching();
matcher.withStringMatcher(ExampleMatcher.StringMatcher.CONTAINING)
.withIgnoreCase(true);
User user = new User();
user.setAge(20);
user.setName("m");
Example<User> example = Example.of(user,matcher);
userRepository.findAll(example);
}
@Test
public void findPageTest(){
int pageNo = 1;
int pageSize = 2;
Pageable pageable = PageRequest.of(pageNo, pageSize);
User user = new User();
user.setAge(20);
user.setName("张三");
Example<User> example = Example.of(user);
Page<User> page = userRepository.findAll(example, pageable);
System.out.println(page.getTotalElements());
}
@Test
public void updateTest(){
User user = userRepository.findById("6195b9a5c6e3b8f8a0e8c6e3").get();
user.setName("李四");
User user1 = userRepository.save(user);
System.out.println(user1);
}
@Test
public void removeTest(){
userRepository.deleteById("6195b9a5c6e3b8f8a0e8c6e3");
}
}2、基于MongoTemplate操作mongodb
java
import com.bilibili.domain.User;
import com.mongodb.client.result.DeleteResult;
import com.mongodb.client.result.UpdateResult;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.data.mongodb.core.MongoTemplate;
import org.springframework.data.mongodb.core.query.Criteria;
import org.springframework.data.mongodb.core.query.Query;
import org.springframework.data.mongodb.core.query.Update;
import org.springframework.test.context.ActiveProfiles;
import java.util.List;
import java.util.regex.Pattern;
@SpringBootTest
@ActiveProfiles("test")
public class MongoTemplateTest {
@Autowired
private MongoTemplate mongoTemplate;
private static final String ID = "675bdbb2d3031003cab59e2f";
@Test
public void createTest() {
User user = new User();
user.setAge(20);
user.setName("张三");
user.setEmail("[email protected]");
User user1 = mongoTemplate.insert(user);
System.out.println(user1);
}
@Test
public void findAllTest() {
List<User> list = mongoTemplate.findAll(User.class);
System.out.println(list);
}
@Test
public void findByIdTest() {
User user = mongoTemplate.findById(ID, User.class);
System.out.println(user);
}
@Test
public void findConditionTest() {
Query query = new Query(Criteria.where("name").is("张三").and("age").is(20));
List<User> userList = mongoTemplate.find(query, User.class);
System.out.println(userList);
}
@Test
public void findLikeTest() {
String name = "张三";
String regex = String.format("%s%s%s","^.*",name,".*$");
// 模糊查询
Pattern pattern = Pattern.compile(regex, Pattern.CASE_INSENSITIVE);
Query query = new Query(Criteria.where("name").regex(pattern));
List<User> userList = mongoTemplate.find(query, User.class);
System.out.println(userList);
}
@Test
public void findPageTest(){
int pageNo = 1;
int pageSize = 2;
Query query = new Query();
//查询记录数
long count = mongoTemplate.count(query, User.class);
//分页查询 (pageNo - 1) * pageSize 表示开始位置
List<User> list = mongoTemplate.find(query.skip((pageNo - 1) * pageSize).limit(pageSize), User.class);
System.out.println(count);
System.out.println(list);
}
@Test
public void updateTest(){
//更新所有符合条件的数据
User user = mongoTemplate.findById(ID, User.class);
user.setName("李四");
user.setAge(30);
//过滤条件
Query query = new Query(Criteria.where("_id").is(user.getId()));
//更新内容
Update update = new Update();
update.set("name",user.getName());
update.set("age",user.getAge());
UpdateResult upsert = mongoTemplate.upsert(query, update, User.class);
//更新条数
long modifiedCount = upsert.getModifiedCount();
System.out.println(modifiedCount);
}
@Test
public void removeTest(){
Query query = new Query(Criteria.where("_id").is(ID));
DeleteResult remove = mongoTemplate.remove(query, User.class);
//删除条数
long deletedCount = remove.getDeletedCount();
System.out.println(deletedCount);
}
}