spring boot 集成 mongodb

ゝ一世哀愁。 2022-05-16 15:55 255阅读 0赞

mongodb安装请查看：[http://www.runoob.com/mongodb/mongodb-window-install.html][http_www.runoob.com_mongodb_mongodb-window-install.html]

1、在pom.xml中添加mongodb的maven依赖

<dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-data-mongodb</artifactId>
    </dependency>

2、在application.properties文件中添加mongodb的配置

#mongodb
    spring.data.mongodb.uri=mongodb://localhost:27017/demo
    #设置了密码的话使用下面的配置方式
    #spring.data.mongodb.uri=mongodb://name:pass@localhost:27017/dbName

或者

spring.data.mongodb.host=localhost
    spring.data.mongodb.port=27017
    spring.data.mongodb.database=demo
    # 默认没有账号密码
    #spring.data.mongodb.username=
    #spring.data.mongodb.password=

3、编写实体类：MongoUserEntity.java

package com.ldy.bootv2.demo.entity;
    
    import java.io.Serializable;
    
    import org.springframework.data.annotation.Id;
    
    public class MongoUserEntity implements Serializable {
    
    	private static final long serialVersionUID = 1L;
    
    	@Id
    	private String id;
    
    	private String userName;
    
    	private Integer userAge;
    
    	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 Integer getUserAge() {
    		return userAge;
    	}
    
    	public void setUserAge(Integer userAge) {
    		this.userAge = userAge;
    	}
    
    }

4、编写dao层：MongoUserRepository.java

package com.ldy.bootv2.demo.dao;
    
    import java.util.List;
    
    import org.springframework.data.mongodb.repository.MongoRepository;
    
    import com.ldy.bootv2.demo.entity.MongoUserEntity;
    
    public interface MongoUserRepository extends MongoRepository<MongoUserEntity, String> {
    
        List<MongoUserEntity> findByUserName(String userName);
    
    }

5、编写测试接口：MongoUserController.java

package com.ldy.bootv2.demo.controller;
    
    import java.util.List;
    import java.util.Optional;
    
    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.web.bind.annotation.DeleteMapping;
    import org.springframework.web.bind.annotation.GetMapping;
    import org.springframework.web.bind.annotation.ModelAttribute;
    import org.springframework.web.bind.annotation.PathVariable;
    import org.springframework.web.bind.annotation.PutMapping;
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.RequestParam;
    import org.springframework.web.bind.annotation.RestController;
    
    import com.ldy.bootv2.demo.dao.MongoUserRepository;
    import com.ldy.bootv2.demo.entity.MongoUserEntity;
    
    import io.swagger.annotations.Api;
    import io.swagger.annotations.ApiOperation;
    import io.swagger.annotations.ApiParam;
    
    @Api(tags = "mongo用户信息管理接口-API")
    @RestController
    @RequestMapping("/mongoUser")
    public class MongoUserController {
    
    	private static Logger logger = LoggerFactory.getLogger(MongoUserController.class);
    
    	@Autowired
    	MongoUserRepository mongoUserRepository;
    
    	@GetMapping("/findAll")
    	@ApiOperation("查询全部用户")
    	public List<MongoUserEntity> findAll() {
    		logger.info("您调用了findAll接口");
    		return mongoUserRepository.findAll();
    	}
    
    	@GetMapping("/findByUserName")
    	@ApiOperation("根据用户名查询用户")
    	public List<MongoUserEntity> findByUserName(
    			@ApiParam(value = "用户名", required = true) @RequestParam String userName) {
    		logger.info("您调用了findByUserName接口");
    		return mongoUserRepository.findByUserName(userName);
    	}
    
    	@GetMapping("/getOne/{id}")
    	@ApiOperation("根据ID查询用户")
    	public MongoUserEntity getOne(@ApiParam(value = "用户id", required = true) @PathVariable("id") String id) {
    		logger.info("您调用了getOne接口");
    		Optional<MongoUserEntity> optional = mongoUserRepository.findById(id);
    		return optional.get();
    	}
    
    	@PutMapping("/saveOrUpdate")
    	@ApiOperation("新增或者修改用户")
    	public String saveOrUpdate(@ModelAttribute MongoUserEntity entity) {
    		logger.info("您调用了saveOrUpdate接口");
    		try {
    			if (null == entity.getId()) {
    				mongoUserRepository.insert(entity);
    			} else {
    				mongoUserRepository.save(entity);
    			}
    
    		} catch (Exception e) {
    			logger.error("失败，原因：" + e.getMessage());
    			return "error";
    		}
    		return "success";
    	}
    
    	@DeleteMapping("/delete/{id}")
    	@ApiOperation("根据ID删除用户")
    	public String deleteById(@ApiParam(value = "用户id", required = true) @PathVariable("id") String id) {
    		logger.info("您调用了delete接口");
    		try {
    			mongoUserRepository.deleteById(id);
    		} catch (Exception e) {
    			logger.error("失败，原因：" + e.getMessage());
    			return "error";
    		}
    		return "success";
    	}
    
    }

6、运行项目，打开swagger页面，测试接口正常，swagger的集成请查看：[https://blog.csdn.net/LDY1016/article/details/83415640][https_blog.csdn.net_LDY1016_article_details_83415640]

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源码下载地址：[https://pan.baidu.com/s/1Z771VDiuabDBJJV445xLeA\#list/path=%2Fspring%20boot%202.x%20%E4%BB%A3%E7%A0%81][https_pan.baidu.com_s_1Z771VDiuabDBJJV445xLeA_list_path_2Fspring_20boot_202.x_20_E4_BB_A3_E7_A0_81]

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[http_www.runoob.com_mongodb_mongodb-window-install.html]: http://www.runoob.com/mongodb/mongodb-window-install.html
[https_blog.csdn.net_LDY1016_article_details_83415640]: https://blog.csdn.net/LDY1016/article/details/83415640
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0xEWTEwMTY_size_16_color_FFFFFF_t_70]: /images/20220503/337f0232e2d44fb6b9da5b557eac47a7.png
[https_pan.baidu.com_s_1Z771VDiuabDBJJV445xLeA_list_path_2Fspring_20boot_202.x_20_E4_BB_A3_E7_A0_81]: https://pan.baidu.com/s/1Z771VDiuabDBJJV445xLeA#list/path=%2Fspring%20boot%202.x%20%E4%BB%A3%E7%A0%81
[20181031170601332.png]: /images/20220503/7ba40912319f4b47b6555bf23e786ee3.png