獅哥哥 三日不寫Code面目可憎

1.pom.xml增加依賴

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

2.application.properties加入連線設定

spring.data.mongodb.authentication-database=admin
spring.data.mongodb.database=liongogo
spring.data.mongodb.host=127.0.0.1
spring.data.mongodb.port=27017
spring.data.mongodb.username=root
spring.data.mongodb.password=xxxxxxxx

3.加入document(需注意id為String類型)

package com.liongogo.domain;

import org.springframework.data.mongodb.core.mapping.Document;
import org.springframework.data.mongodb.core.mapping.Field;

import javax.persistence.Id;

@Document(collection = "product")
public class Product {

    @Id
    private String id;
    @Field("product_id")
    private String productId;
    @Field("product_name")
    private String productName;

    public String getId() {
        return id;
    }

    public void setId(String id) {
        this.id = id;
    }

    public String getProductId() {
        return productId;
    }

    public void setProductId(String productId) {
        this.productId = productId;
    }

    public String getProductName() {
        return productName;
    }

    public void setProductName(String productName) {
        this.productName = productName;
    }
}

4.加入Repository

package com.liongogo.repository;

import com.liongogo.domain.Product;
import org.springframework.data.mongodb.repository.MongoRepository;

import java.util.List;

public interface ProductRepository extends MongoRepository<Product, String> {

    List<Product> findAll();

    Product findOneByProductId(String pProductId);
}

5.加入Service

package com.liongogo.service;

import com.liongogo.domain.Product;
import com.liongogo.repository.ProductRepository;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;

@Service
public class ProductService {
    @Autowired
    ProductRepository productRepository;
    public void save(Product pProduct){
        productRepository.save(pProduct);
    }

    public List<Product> findAll(){
        return productRepository.findAll();
    }

    public Product findOneByProductId(String pProductId){
        return productRepository.findOneByProductId(pProductId);
    }
}

6.測試程式

package com.liongogo.controller;

import com.liongogo.domain.Product;
import com.liongogo.service.ProductService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class ProductController {

    @Autowired
    ProductService productService;

    @RequestMapping("/products/add")
    public String add() {
        Product tMewtwo = new Product();
        tMewtwo.setProductId("76023");
        tMewtwo.setProductName("蝙蝠裝甲車");
        productService.save(tMewtwo);

        Product tCharizard = new Product();
        tCharizard.setProductId("76139");
        tCharizard.setProductName("1989年蝙蝠車");
        productService.save(tCharizard);

        return "OK";
    }

    @RequestMapping("/products/findAll")
    public Object findAll() {
        return productService.findAll();
    }

    @RequestMapping("/products/76139")
    public Object findOnde() {
        return productService.findOneByProductId("76139");
    }
}