SpringBoot-Mongodb

淩亂°似流年 2022-05-18 06:28 184阅读 0赞

目录结构：

![70][]

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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
       <modelVersion>4.0.0</modelVersion>
    
       <groupId>com.neo</groupId>
       <artifactId>spring-boot-mongodb</artifactId>
       <version>1.0.0</version>
       <packaging>jar</packaging>
    
       <name>spring-boot-mongodb</name>
       <description>Demo project for Spring Boot and mongodb</description>
    
       <parent>
          <groupId>org.springframework.boot</groupId>
          <artifactId>spring-boot-starter-parent</artifactId>
          <version>1.5.3.RELEASE</version>
          <relativePath/> 
       </parent>
    
       <properties>
          <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
          <java.version>1.8</java.version>
       </properties>
    
       <dependencies>
          <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter</artifactId>
          </dependency>
          <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-test</artifactId>
             <scope>test</scope>
          </dependency>
            <dependency>
               <groupId>org.springframework.boot</groupId>
               <artifactId>spring-boot-devtools</artifactId>
               <optional>true</optional>
          </dependency>
          <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-data-mongodb</artifactId>
          </dependency>
        </dependencies>
       
       <build>
          <plugins>
             <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <configuration>
                       <fork>true</fork>
                   </configuration>
             </plugin>
          </plugins>
       </build>
       
    
    </project>

UserEntity：

package com.neo.entity;
    
    import java.io.Serializable;
    
    /**
     * Created by summer on 2017/5/5.
     */
    public class UserEntity implements Serializable {
            private static final long serialVersionUID = -3258839839160856613L;
            private Long id;
            private String userName;
            private String passWord;
    
            public Long getId() {
                    return id;
            }
    
            public void setId(Long 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;
            }
    
            @Override
            public String toString() {
                    return "UserEntity{" +
                            "id=" + id +
                            ", userName='" + userName + '\'' +
                            ", passWord='" + passWord + '\'' +
                            '}';
            }
    }

UserDao：

package com.neo.dao;
    
    import com.neo.entity.UserEntity;
    
    /**
     * Created by summer on 2017/5/5.
     */
    public interface UserDao  {
    
        public void saveUser(UserEntity user);
    
        public UserEntity findUserByUserName(String userName);
    
        public int updateUser(UserEntity user);
    
        public void deleteUserById(Long id);
    
    }

UserDaoImpl：

package com.neo.dao.impl;
    
    import com.mongodb.WriteResult;
    import com.neo.dao.UserDao;
    import com.neo.entity.UserEntity;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.boot.autoconfigure.security.SecurityProperties;
    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.stereotype.Component;
    
    /**
     * Created by summer on 2017/5/5.
     */
    @Component
    public class UserDaoImpl implements UserDao {
    
        @Autowired
        private MongoTemplate mongoTemplate;
    
        /**
         * 创建对象
         * @param user
         */
        @Override
        public void saveUser(UserEntity user) {
            mongoTemplate.save(user);
        }
    
        /**
         * 根据用户名查询对象
         * @param userName
         * @return
         */
        @Override
        public UserEntity findUserByUserName(String userName) {
            Query query=new Query(Criteria.where("userName").is(userName));
            UserEntity user =  mongoTemplate.findOne(query , UserEntity.class);
            return user;
        }
    
        /**
         * 更新对象
         * @param user
         */
        @Override
        public int updateUser(UserEntity user) {
            Query query=new Query(Criteria.where("id").is(user.getId()));
            Update update= new Update().set("userName", user.getUserName()).set("passWord", user.getPassWord());
            //更新查询返回结果集的第一条
            WriteResult result =mongoTemplate.updateFirst(query,update,UserEntity.class);
            //更新查询返回结果集的所有
            // mongoTemplate.updateMulti(query,update,UserEntity.class);
            if(result!=null)
                return result.getN();
            else
                return 0;
        }
    
        /**
         * 删除对象
         * @param id
         */
        @Override
        public void deleteUserById(Long id) {
            Query query=new Query(Criteria.where("id").is(id));
            mongoTemplate.remove(query,UserEntity.class);
        }
    }

Application：

package com.neo;
    
    import org.springframework.boot.SpringApplication;
    import org.springframework.boot.autoconfigure.SpringBootApplication;
    import org.springframework.scheduling.annotation.EnableScheduling;
    
    @SpringBootApplication
    public class Application {
    
       public static void main(String[] args) {
          SpringApplication.run(Application.class, args);
       }
    }

application.properties：

spring.application.name=spirng-boot-mongodb
    
    spring.data.mongodb.uri=mongodb://127.0.0.1:27017/test
    
    上面的mongodb自行百度安装，然后安装一个Robo 3T 1.2.1可视化工具。

这里查看上面的uri链接地址：

![70 1][]

最后添加两个测试类：

ApplicationTests：

package com.neo;
    
    import org.junit.Test;
    import org.junit.runner.RunWith;
    import org.springframework.boot.test.context.SpringBootTest;
    import org.springframework.test.context.junit4.SpringRunner;
    
    @RunWith(SpringRunner.class)
    @SpringBootTest
    public class ApplicationTests {
    
       @Test
       public void contextLoads() {
          System.out.println("hello world");
       }
    
    }

测试结果：

![70 2][]

UserDaoTest：

package com.neo.dao;
    
    import com.neo.entity.UserEntity;
    import org.junit.Test;
    import org.junit.runner.RunWith;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.boot.test.context.SpringBootTest;
    import org.springframework.test.context.junit4.SpringRunner;
    
    /**
     * Created by summer on 2017/5/5.
     */
    @RunWith(SpringRunner.class)
    @SpringBootTest
    public class UserDaoTest {
    
        @Autowired
        private UserDao userDao;
    
        @Test
        public void testSaveUser() throws Exception {
            UserEntity user=new UserEntity();
            user.setId(2l);
            user.setUserName("小明");
            user.setPassWord("fffooo123");
            userDao.saveUser(user);
        }
    
        @Test
        public void findUserByUserName(){
           UserEntity user= userDao.findUserByUserName("小明");
           System.out.println("user is "+user);
        }
    
        @Test
        public void updateUser(){
            UserEntity user=new UserEntity();
            user.setId(2l);
            user.setUserName("天空");
            user.setPassWord("fffxxxx");
            userDao.updateUser(user);
        }
    
        @Test
        public void deleteUserById(){
            userDao.deleteUserById(2l);
        }
    
    }

测试保存结果：

![70 3][]

![70 4][]

查找测试：

![70 5][]

修改测试：

![70 6][]

![70 7][]

删除测试：

![70 8][]

![70 9][]

[70]: /images/20220518/08ba5df2d88f40868935ca90bc27ca50.png
[70 1]: /images/20220518/7193ac4cee6f4160ad475f346340f57a.png
[70 2]: /images/20220518/1634cf0372c6430d86c5fcad80da603b.png
[70 3]: /images/20220518/d8df901be43648578a4b8b9b745dbbeb.png
[70 4]: /images/20220518/7e0aeff890674abb85dc3daf76f74bd5.png
[70 5]: /images/20220518/467f0f91552043d4b762be66f6c6c431.png
[70 6]: /images/20220518/50a5eb8c3f6644da8bd85ed744a302e0.png
[70 7]: /images/20220518/37106cca2da54d19a2c3ab918f6914ff.png
[70 8]: /images/20220518/f5827392909a42908d727dbf2428011c.png
[70 9]: /images/20220518/bfebf6b2c8cf44119e858d8dfe440dfd.png

SpringBoot-Mongodb

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