Springboot集成MongoDB实现CRUD

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1、添加依赖

1        <dependency>
2            <groupId>org.springframework.boot</groupId>
3            <artifactId>spring-boot-starter-web</artifactId>
4        </dependency>
5        <dependency>
6            <groupId>org.springframework.boot</groupId>
7            <artifactId>spring-boot-starter-data-mongodb</artifactId>
8        </dependency>

2、Java代码

　　a、控制层

 1 package com.mao2080.mongodb;
 2 
 3 import com.mao2080.beans.User;
 4 import org.springframework.beans.factory.annotation.Autowired;
 5 import org.springframework.data.mongodb.core.MongoTemplate;
 6 import org.springframework.data.mongodb.core.query.Criteria;
 7 import org.springframework.data.mongodb.core.query.Query;
 8 import org.springframework.data.mongodb.core.query.Update;
 9 import org.springframework.web.bind.annotation.*;
10 
11 import javax.servlet.http.HttpServletResponse;
12 import java.util.List;
13 
14 @RestController
15 @RequestMapping("/mongodbController")
16 public class MongodbController {
17 
18     @Autowired
19     private MongoTemplate mongoTemplate;
20 
21     /**表名*/
22     private static final String collectionName = "user";
23 
24     /**
25      * 描述：新增
26      * @author maochengyuan
27      * @created 2018/9/1 20:17
28      * @param user
29      * @return ResultObject
30      */
31     @RequestMapping(value = "/insert", method = RequestMethod.POST)
32     @ResponseBody
33     public ResultObject insert(@ModelAttribute User user) throws Exception {
34         this.mongoTemplate.insert(user);
35         return new ResultObject(HttpServletResponse.SC_OK);
36     }
37 
38     /**
39      * 描述：删除
40      * @author maochengyuan
41      * @created 2018/9/1 20:17
42      * @param userId
43      * @return ResultObject
44      */
45     @RequestMapping("/delete")
46     @ResponseBody
47     public ResultObject delete(@RequestParam("userId") String userId) throws Exception {
48         Query query = Query.query(Criteria.where("userId").is(userId));
49         this.mongoTemplate.remove(query, collectionName);
50         return new ResultObject(HttpServletResponse.SC_OK);
51     }
52 
53     /**
54      * 描述：修改
55      * @author maochengyuan
56      * @created 2018/9/1 20:17
57      * @param user
58      * @return ResultObject
59      */
60     @RequestMapping(value = "/update", method = RequestMethod.POST)
61     @ResponseBody
62     public ResultObject update(@ModelAttribute User user) throws Exception {
63         Query query = Query.query(Criteria.where("userId").is(user.getUserId()));
64         Update update = new Update();
65         update.set("age", user.getAge());
66         update.set("name", user.getName());
67         update.set("email", user.getEmail());
68         this.mongoTemplate.updateFirst(query, update, collectionName);
69         return new ResultObject(HttpServletResponse.SC_OK);
70     }
71 
72     /**
73      * 描述：查询
74      * @author maochengyuan
75      * @created 2018/9/1 20:17
76      * @param
77      * @return ResultObject
78      */
79     @RequestMapping("/query")
80     @ResponseBody
81     public ResultObject query() throws Exception {
82         Query query = Query.query(Criteria.where("dataStatus").is(1));
83         List<User> users = this.mongoTemplate.find(query, User.class);
84         return new ResultObject(HttpServletResponse.SC_OK, users);
85     }
86 
87 }

　　b、实体类

 1 package com.mao2080.beans;
 2 
 3 import org.springframework.data.mongodb.core.mapping.Document;
 4 
 5 import java.util.Date;
 6 
 7 @Document(collection="user")
 8 public class User {
 9 
10     private String userId;
11 
12     private String name;
13 
14     private String uclass;
15 
16     private String email;
17 
18     private Date birthday;
19 
20     private int age;
21 
22     private int dataStatus;
23 
24     public User() {
25     }
26 
27     public String getName() {
28         return name;
29     }
30 
31     public void setName(String name) {
32         this.name = name;
33     }
34 
35     public String getUserId() {
36         return userId;
37     }
38 
39     public void setUserId(String userId) {
40         this.userId = userId;
41     }
42 
43     public String getUclass() {
44         return uclass;
45     }
46 
47     public void setUclass(String uclass) {
48         this.uclass = uclass;
49     }
50 
51     public String getEmail() {
52         return email;
53     }
54 
55     public void setEmail(String email) {
56         this.email = email;
57     }
58 
59     public Date getBirthday() {
60         return birthday;
61     }
62 
63     public void setBirthday(Date birthday) {
64         this.birthday = birthday;
65     }
66 
67     public int getAge() {
68         return age;
69     }
70 
71     public void setAge(int age) {
72         this.age = age;
73     }
74 
75     public int getDataStatus() {
76         return dataStatus;
77     }
78 
79     public void setDataStatus(int dataStatus) {
80         this.dataStatus = dataStatus;
81     }
82 }

c、配置文件（application.properties）

1 spring.data.mongodb.host=127.0.0.1
2 spring.data.mongodb.port=27000
3 spring.data.mongodb.database=mao2080

3、操作过程

　　注意使用postman来模拟POST请求。

　　1、新增URL：http://localhost:8080/mongodbController/insert?userId=015&name=Back&uclass=B&[email protected]&age=11&dataStatus=1

　　2、删除URL：http://localhost:8080/mongodbController/delete?userId=015

　　3、修改URL：http://localhost:8080/mongodbController/update?userId=014&name=Back&uclass=B&[email protected]&age=18&dataStatus=2

　　4、查询URL：http://localhost:8080/mongodbController/query

4、代码下载

　　mongodb-demo.zip

5、参考网站

　　https://blog.csdn.net/mazhen1991/article/details/78161784