Spring+MongoDB配置简单Demo

由于也是刚接触MongoDB,自己倒腾了一下MongoDB的安装配置,以及基本语法结构后,就着手搭建了这个Demo。源码在这里

https://github.com/972579/Spring_MongoDB

pom.xml

	<properties>
        <maven.compiler.source>1.8</maven.compiler.source>
        <maven.compiler.target>1.8</maven.compiler.target>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <spring.version>5.1.3.RELEASE</spring.version>
    </properties>
    <dependencies>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.13-beta-1</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.data</groupId>
            <artifactId>spring-data-mongodb</artifactId>
            <version>2.1.3.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-core</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-test</artifactId>
            <version>${spring.version}</version>
        </dependency>
    </dependencies>

applicationContext.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="
        http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans-4.3.xsd
        http://www.springframework.org/schema/context
        http://www.springframework.org/schema/context/spring-context-4.3.xsd"
       >
    <!--使用注解管理bean  -->
    <context:annotation-config/>
    <!-- 扫描所有类 -->
    <context:component-scan base-package="com.mongo">
        <context:exclude-filter type = "annotation" expression = "org.springframework.stereotype.Controller"/>
    </context:component-scan>
    <import resource="mongo.xml"  />
</beans>

mongo.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:mongo="http://www.springframework.org/schema/data/mongo"
       xsi:schemaLocation="http://www.springframework.org/schema/context
          http://www.springframework.org/schema/context/spring-context-4.3.xsd
          http://www.springframework.org/schema/data/mongo
          http://www.springframework.org/schema/data/mongo/spring-mongo-2.0.xsd
          http://www.springframework.org/schema/beans
          http://www.springframework.org/schema/beans/spring-beans-4.3.xsd">

    <!-- 加载mongodb的属性配置文件 -->
    <context:property-placeholder location="classpath:mongodb.properties" />
    
    <!-- 连接mongo-->
    <mongo:mongo-client id="mongo" port="${mongo.port}" host="${mongo.host}"/>
    
    <!-- 连接工厂-->
    <mongo:db-factory id="mgFactory" mongo-ref="mongo" dbname="${mongo.dbname}" />
    
    <bean id="mongoTemplate" class="org.springframework.data.mongodb.core.MongoTemplate">
        <constructor-arg name="mongoDbFactory" ref="mgFactory"/>
    </bean>
</beans>

User.java

@Document(collection = "user")
public class User {

    @Id
    private String id;

    @Field(value = "name")
    private String name;

    @Field(value = "age")
    private Integer age;

    public User(String name, Integer age) {
        this.name = name;
        this.age = age;
    }

    public String getName() {
        return name;
    }

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

    public Integer getAge() {
        return age;
    }

    public void setAge(Integer age) {
        this.age = age;
    }

    public String getId() {
        return id;
    }

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

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

UserTest.java

@ContextConfiguration({ "classpath:applicationContext.xml"})
@RunWith(SpringJUnit4ClassRunner.class)
public class UserTest {

    @Autowired
    private MongoTemplate mongoTemplate;
    private static final String collectionName = "user";

    @Test
    public void add(){
        for (int i = 0; i < 20; i ++){
            User user = new User("测试" + i,i);
            mongoTemplate.save(user);
        }

    }

    @Test
    public void delete(){
        //只删除查询到的第一条
        //System.out.println(mongoTemplate.findAndRemove(new Query(Criteria.where("age").is(1)),User.class));


        //删除查询到的所有记录
        //System.out.println(mongoTemplate.findAllAndRemove(new Query(Criteria.where("age").gte(0)),User.class));

        //直接删除所有
        mongoTemplate.remove(new Query(Criteria.where("age").gte(0)),User.class);
    }
    
    @Test
    public void update(){
        //mongoTemplate.updateFirst() 删除符合条件的第一个
        mongoTemplate.upsert(new Query(Criteria.where("age").gte(100)),
                Update.update("name","修改后的").set("title","新增"),User.class); //删除符合条件的记录，没有符合条件的则添加

       /* mongoTemplate.updateMulti(new Query(Criteria.where("age").gte(0)),
                Update.update("name","修改后的").set("title","新增"),User.class);*/

        //查询并删除
       /* System.out.println(mongoTemplate.findAndModify(new Query(Criteria.where("age").is(0)),
                new Update().set("name","修改后的"),User.class));*/
    }

    @Test
    public void select(){

        //查询符合条件的第一个
        System.out.println(mongoTemplate.findOne(new Query(Criteria.where("age").gte(0)),User.class));

        //查询user集合所有数据
        System.out.println(mongoTemplate.findAll(User.class));

        //查询age >= 0 的所有数据
        System.out.println(mongoTemplate.find(new Query(Criteria.where("age").gte(0)),User.class));
    }
}