JeecgBoot与MongoDB集成实战文档

zhangdaiscott · 发表于 2021-12-25 20:32:15

1. 坐标引入依赖

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

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2. 增加配置类

package org.jeecg.config;
import com.mongodb.client.MongoClient;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.mongodb.core.MongoClientFactoryBean;
import org.springframework.data.mongodb.core.MongoOperations;
import org.springframework.data.mongodb.core.MongoTemplate;
@Configuration
public class MongoConfig {
@Bean
public MongoClientFactoryBean mongoClientFactoryBean() {
MongoClientFactoryBean factoryBean = new MongoClientFactoryBean();
factoryBean.setHost("127.0.0.1");
factoryBean.setPort(27017);
return factoryBean;
}
@Bean
public MongoTemplate mongoTemplate(MongoClient mongoClient) {
return new MongoTemplate(mongoClient, "springboot-db");
}
}

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说明：新建springboot工程，引入坐标，然后在application.properties文件中加入

spring.data.mongodb.uri=mongodb://localhost:27017/springboot-db

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springboot就能支持MongoRepository和MongoTemplate读写MongoDb，测试很顺利。

但是将springboot工程中的代码加入到jeecgboot中，运行后一直提示错误

用这个配置类，代替yml中的mongodb配置可解决该错误。

3. 升级积木报表

针对上面提到的mongoTemplate错误，官方已经提供了最新的解决方案，将积木报表升级。这样就可以不用配置类。

<dependency>
<groupId>org.jeecgframework.jimureport</groupId>
<artifactId>jimureport-spring-boot-starter</artifactId>
<version>1.4.2</version>
</dependency>

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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

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4. 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=%s, firstName='%s', lastName='%s']",
id, firstName, lastName);
}
}

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5. 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);
}

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6. 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");
}
}

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7. 测试结果
测试后的数据库截图

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