Spring mongodb 之簡單CRUD

官方文檔參考:http://www.mkyong.com/mongodb/  
用MyEclipse添加maven-Project工程，在這之前你可能需要配置你的m2eclipse
1.將maven配置成你自己安裝的版本。

2.設定User Settings
當然也可以修改倉庫預設目錄，打maven安裝目錄conf/setting.xml
在<settings>節點裡
添加：<localRepository>d:/myrepository</localRepository>即可

pom.xml

 

<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.test</groupId>  <artifactId>mongodb</artifactId>  <version>0.0.1-SNAPSHOT</version>  <name>springmongodb</name>  <description>This is test case</description>  <build>    <plugins>      <plugin>        <artifactId>maven-compiler-plugin</artifactId>        <configuration>          <source>1.6</source>          <target>1.6</target>        </configuration>      </plugin>    </plugins>  </build>    <repositories>        <repository>            <id>spring-milestone</id>            <name>Spring Maven MILESTONE Repository</name>            <url>http://maven.springframework.org/milestone</url>        </repository>    </repositories>     <dependencies>        <dependency>            <groupId>junit</groupId>            <artifactId>junit</artifactId>            <version>4.8.2</version>            <scope>test</scope>        </dependency>         <!-- Spring framework -->        <dependency>            <groupId>org.springframework</groupId>            <artifactId>spring-core</artifactId>            <version>3.0.5.RELEASE</version>        </dependency>         <dependency>            <groupId>org.springframework</groupId>            <artifactId>spring-context</artifactId>            <version>3.0.5.RELEASE</version>        </dependency>         <!-- mongodb java driver -->        <dependency>            <groupId>org.mongodb</groupId>            <artifactId>mongo-java-driver</artifactId>            <version>2.5.2</version>        </dependency>         <dependency>            <groupId>org.springframework.data</groupId>            <artifactId>spring-data-mongodb</artifactId>            <version>1.0.0.M2</version>        </dependency>         <dependency>            <groupId>cglib</groupId>            <artifactId>cglib</artifactId>            <version>2.2</version>        </dependency>     </dependencies>    </project>

寫完pom.xml後，執行 項目-右鍵-run-maven install 
下載完jar包，Test 成功後，就可以寫代碼了。
SpringMongoConfig.java

package entity;import java.util.List;public class User{    private String id;    private String username;    private String password;    //文檔中的集合    private List<String> position;    // 要有聲明預設的構造方法，不然查詢的時候會報錯(無法執行個體化)    public User()    {    }    public String getId()    {        return id;    }    public void setId(String 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;    }    public List<String> getPosition()    {        return position;    }    public void setPosition(List<String> position)    {        this.position = position;    }    public User(String id, String username, String password,            List<String> position)    {        super();        this.id = id;        this.username = username;        this.password = password;        this.position = position;    }    public User(String username, String password, List<String> position)    {        super();        this.username = username;        this.password = password;        this.position = position;    }}

測試類別:

package run;import java.util.ArrayList;import java.util.Iterator;import java.util.List;import java.util.Set;import org.junit.Test;import org.springframework.context.ApplicationContext;import org.springframework.context.annotation.AnnotationConfigApplicationContext;import org.springframework.data.document.mongodb.MongoOperations;import org.springframework.data.document.mongodb.query.Criteria;import org.springframework.data.document.mongodb.query.Query;import org.springframework.data.document.mongodb.query.Update;import com.config.SpringMongoConfig;import entity.User;public class App{    private ApplicationContext ctx = new AnnotationConfigApplicationContext(            SpringMongoConfig.class);    private MongoOperations mongoOperations = (MongoOperations) ctx            .getBean("mongoTemplate");    @Test    public void testSave()    {        List<String> list = new ArrayList<String>();        for(int i =0; i < 100; i ++)        {            list.add("開發" + i);            list.add("經理" + i);            User user = new User("John" + i,"123" + i,list);            //第一個參數：要儲存的表名，預設為執行個體名user同名的集合(表)            //如果表不存在會自動建立, 表名user為關鍵字不要使用            mongoOperations.save("userinfo", user);            list.clear();        }    }    @Test    public void testUpdate()    {        mongoOperations.updateFirst("userinfo",                new Query(Criteria.where("username").is("John0")),                Update.update("password", "newpassword"));    }    @Test    public void testDelete()    {        mongoOperations.remove("userinfo",new Query(Criteria.where("id").is("4ffe3486b41f8ed41269a729")),User.class);    }    @Test    public void testQuery()    {        //輸出所有表名        Set<String> set = mongoOperations.getCollectionNames();        Iterator<String> it =  set.iterator();        while(it.hasNext())        {            System.out.println(it.next());        }        //user:要查詢的表名        List<User> users = mongoOperations.getCollection("userinfo", User.class);        System.out.println(users.size());        for(User u : users)        {            System.out.println(u.getId());        }    }}

源碼下載