SpringMVC集成MongoDb

（1）pom添加相关依赖

    <dependency>
      <groupId>org.springframework.data</groupId>
      <artifactId>spring-data-mongodb</artifactId>
      <version>1.10.18.RELEASE</version>
    </dependency>

（2）注册相关bean

package cn.coreqi.config;

import com.mongodb.Mongo;
import com.mongodb.MongoClient;
import com.mongodb.MongoCredential;
import com.mongodb.ServerAddress;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.mongodb.config.AbstractMongoConfiguration;
import org.springframework.data.mongodb.repository.config.EnableMongoRepositories;
import java.util.Arrays;

@Configuration
@EnableMongoRepositories(basePackages = "cn.coreqi.dao.mongodb")
public class MongodbConfig extends AbstractMongoConfiguration {

    @Override
    protected String getDatabaseName() {
        return "springmongo";
    }

    @Override
    public Mongo mongo() throws Exception {
        MongoCredential credential = MongoCredential.createCredential("fanqi","springmongo","123456".toCharArray());
        return new MongoClient(new ServerAddress("192.168.205.128",27017), Arrays.asList(credential));
    }
}

（3）编写实体类

package cn.coreqi.entities;

import org.springframework.data.annotation.Id;
import org.springframework.data.mongodb.core.mapping.Document;
import org.springframework.data.mongodb.core.mapping.Field;

import java.io.Serializable;

@Document
public class User implements Serializable {
    @Id
    private Integer Id;
    @Field("age")
    private Integer Age;
    private String UserName;
    private String PassWord;
    private Integer Enabled;

    public User(Integer id, Integer age, String userName, String passWord, Integer enabled) {
        Id = id;
        Age = age;
        UserName = userName;
        PassWord = passWord;
        Enabled = enabled;
    }

    public Integer getId() {
        return Id;
    }

    public void setId(Integer id) {
        Id = id;
    }

    public Integer getAge() {
        return Age;
    }

    public void setAge(Integer age) {
        Age = age;
    }

    public String getUserName() {
        return UserName;
    }

    public void setUserName(String userName) {
        UserName = userName;
    }

    public String getPassWord() {
        return PassWord;
    }

    public void setPassWord(String passWord) {
        PassWord = passWord;
    }

    public Integer getEnabled() {
        return Enabled;
    }

    public void setEnabled(Integer enabled) {
        Enabled = enabled;
    }

    @Override
    public String toString() {
        return "User{" +
                "Id=" + Id +
                ", Age=" + Age +
                ", UserName='" + UserName + '\'' +
                ", PassWord='" + PassWord + '\'' +
                ", Enabled=" + Enabled +
                '}';
    }
}

（4）编写dao

package cn.coreqi.dao.mongodb;

import cn.coreqi.entities.User;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.mongodb.core.MongoOperations;
import org.springframework.data.mongodb.core.query.Criteria;
import org.springframework.data.mongodb.core.query.Query;
import org.springframework.stereotype.Repository;

@Repository
public class UserMongoDao {
    @Autowired
    private MongoOperations mongo;

    public long count(){
        return mongo.getCollection("user").count();
    }
    public void addUser(User user){
        mongo.save(user,"user");
    }
    public User getById(int id){
        return mongo.findById(id,User.class);
    }
    public User getByUserName(String userName){
        return mongo.findOne(Query.query(Criteria.where("UserName").is(userName)),User.class);
    }
    public void delById(int id){
        mongo.remove(Query.query(Criteria.where("Id").is(id)),User.class);
    }
}