zhangdaiscott 发表于 2021-12-25 20:32:15

JeecgBoot与MongoDB集成实战文档

1. 坐标引入依赖
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-mongodb</artifactId>
</dependency>
2. 升级积木报表
jeecgboot2.4.6/3.0等版本集成mongodb会报mongoTemplate错误,官方已经提供了解决方案,将积木报表升级到最新版即可。
<dependency>
<groupId>org.jeecgframework.jimureport</groupId>
<artifactId>jimureport-spring-boot-starter</artifactId>
<version>1.4.2</version>
</dependency>之后在application-dev.yml文件中,加入mongoDb的配置项
spring:
data:
    mongodb:
      uri: mongodb://localhost:27017/springboot-db
3. 创建实体类
package org.jeecg.modules.mongodb.entity;

import org.springframework.data.annotation.Id;

public class Customer {

    @Id
    public String id;

    public String firstName;
    public String lastName;

    public Customer() {}

    public Customer(String firstName, String lastName) {
      this.firstName = firstName;
      this.lastName = lastName;
    }

    @Override
    public String toString() {
      return String.format(
                "Customer",
                id, firstName, lastName);
    }

}
4. 创建Repository
package org.jeecg.modules.mongodb.dao;

import org.jeecg.modules.mongodb.entity.Customer;
import org.springframework.data.mongodb.repository.MongoRepository;

import java.util.List;

public interface CustomerRepository extends MongoRepository<Customer, String> {

   Customer findByFirstName(String firstName);
   List<Customer> findByLastName(String lastName);

}
5. 测试用例
用两种方式测试mongoDB,分别为MongoRepository和MongoTemplate
package org.jeecg.modules.mongodb;

import org.jeecg.common.api.vo.Result;
import org.jeecg.modules.mongodb.dao.CustomerRepository;
import org.jeecg.modules.mongodb.entity.Customer;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.mongodb.core.MongoTemplate;
import org.springframework.web.bind.annotation.*;

import java.util.HashMap;
import java.util.Map;


/**
* 测试mongodb
*/
@RestController
@RequestMapping("/mongo")
public class MongoController {

    @Autowired
    private MongoTemplate mongoTemplate;
    @Autowired
    private CustomerRepository repository;

    @GetMapping("/test1")
    public Result<?> TestMongoDb(){
      Map<String,String> map = new HashMap<>();
      map.put("jeecg","mongodb-jeecg");
      mongoTemplate.insert(map, "testMongoDb");

      return Result.OK("存入成功");
    }

    @GetMapping("/test2")
    public Result<?> TestMongoDb2(){
      repository.deleteAll();

      // save a couple of customers
      repository.save(new Customer("Alice", "Smith"));
      repository.save(new Customer("Bob", "Smith"));

      // fetch all customers
      System.out.println("Customers found with findAll():");
      System.out.println("-------------------------------");
      for (Customer customer : repository.findAll()) {
            System.out.println(customer);
      }
      System.out.println();

      // fetch an individual customer
      System.out.println("Customer found with findByFirstName('Alice'):");
      System.out.println("--------------------------------");
      System.out.println(repository.findByFirstName("Alice"));

      System.out.println("Customers found with findByLastName('Smith'):");
      System.out.println("--------------------------------");
      for (Customer customer : repository.findByLastName("Smith")) {
            System.out.println(customer);
      }

      return Result.OK("存入成功");
    }

}
6. 测试结果
测试后的数据库截图

https://img-blog.csdnimg.cn/9ad4b7f7bfa04960b1bc0eeaecaa5de3.png https://img-blog.csdnimg.cn/131c993e87014cb9bc297b4c6320929c.png
https://img-blog.csdnimg.cn/2f7c85e3e52b4b3580ba1dfc90f52f6d.png



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