SpringMVC集成MongoDb

（1）pom添加相關依賴

1     <dependency>
2       <groupId>org.springframework.data</groupId>
3       <artifactId>spring-data-mongodb</artifactId>
4       <version>1.10.18.RELEASE</version>
5     </dependency>

（2）註冊相關bean

 1 package cn.coreqi.config;  2 
 3 import com.mongodb.Mongo;  4 import com.mongodb.MongoClient;  5 import com.mongodb.MongoCredential;  6 import com.mongodb.ServerAddress;  7 import org.springframework.context.annotation.Configuration;  8 import org.springframework.data.mongodb.config.AbstractMongoConfiguration;  9 import org.springframework.data.mongodb.repository.config.EnableMongoRepositories; 10 import java.util.Arrays; 11 
12 @Configuration 13 @EnableMongoRepositories(basePackages = "cn.coreqi.dao.mongodb") 14 public class MongodbConfig extends AbstractMongoConfiguration { 15 
16  @Override 17     protected String getDatabaseName() { 18         return "springmongo"; 19  } 20 
21  @Override 22     public Mongo mongo() throws Exception { 23         MongoCredential credential = MongoCredential.createCredential("fanqi","springmongo","123456".toCharArray()); 24         return new MongoClient(new ServerAddress("192.168.205.128",27017), Arrays.asList(credential)); 25  } 26 }

（3）編寫實體類

 1 package cn.coreqi.entities;  2 
 3 import org.springframework.data.annotation.Id;  4 import org.springframework.data.mongodb.core.mapping.Document;  5 import org.springframework.data.mongodb.core.mapping.Field;  6 
 7 import java.io.Serializable;  8 
 9 @Document 10 public class User implements Serializable { 11  @Id 12     private Integer Id; 13     @Field("age") 14     private Integer Age; 15     private String UserName; 16     private String PassWord; 17     private Integer Enabled; 18 
19     public User(Integer id, Integer age, String userName, String passWord, Integer enabled) { 20         Id = id; 21         Age = age; 22         UserName = userName; 23         PassWord = passWord; 24         Enabled = enabled; 25  } 26 
27     public Integer getId() { 28         return Id; 29  } 30 
31     public void setId(Integer id) { 32         Id = id; 33  } 34 
35     public Integer getAge() { 36         return Age; 37  } 38 
39     public void setAge(Integer age) { 40         Age = age; 41  } 42 
43     public String getUserName() { 44         return UserName; 45  } 46 
47     public void setUserName(String userName) { 48         UserName = userName; 49  } 50 
51     public String getPassWord() { 52         return PassWord; 53  } 54 
55     public void setPassWord(String passWord) { 56         PassWord = passWord; 57  } 58 
59     public Integer getEnabled() { 60         return Enabled; 61  } 62 
63     public void setEnabled(Integer enabled) { 64         Enabled = enabled; 65  } 66 
67  @Override 68     public String toString() { 69         return "User{" +
70                 "Id=" + Id +
71                 ", Age=" + Age +
72                 ", UserName='" + UserName + '\'' +
73                 ", PassWord='" + PassWord + '\'' +
74                 ", Enabled=" + Enabled +
75                 '}'; 76  } 77 }

（4）編寫dao

 1 package cn.coreqi.dao.mongodb;  2 
 3 import cn.coreqi.entities.User;  4 import org.springframework.beans.factory.annotation.Autowired;  5 import org.springframework.data.mongodb.core.MongoOperations;  6 import org.springframework.data.mongodb.core.query.Criteria;  7 import org.springframework.data.mongodb.core.query.Query;  8 import org.springframework.stereotype.Repository;  9 
10 @Repository 11 public class UserMongoDao { 12  @Autowired 13     private MongoOperations mongo; 14 
15     public long count(){ 16         return mongo.getCollection("user").count(); 17  } 18     public void addUser(User user){ 19         mongo.save(user,"user"); 20  } 21     public User getById(int id){ 22         return mongo.findById(id,User.class); 23  } 24     public User getByUserName(String userName){ 25         return mongo.findOne(Query.query(Criteria.where("UserName").is(userName)),User.class); 26  } 27     public void delById(int id){ 28         mongo.remove(Query.query(Criteria.where("Id").is(id)),User.class); 29  } 30 }