mavn项目搭建（后端单表）

mavn+ajax的单表项目

1.项目的搭建

• 步骤一：创建项目
  

• 步骤二：复制部门xml文件

• 

• 步骤三：拷贝properties文件

• 

• 步骤四：拷贝配置类

• 

• 步骤五：编写启动

• 

1.2 分类的基本结构

• 编写domain JavaBean：Category

• 编写dao：CategoryMapper

• 编写service：CategoryService

• 编写controller：CategoryController

• 编写domain JavaBean：Category

  /**
   * @author 桐叔
   * @email [email protected]
   */
  @Table(name="t_category")
  public class Category {
        
        
  
      @Id
      private Integer cid;
  
      @Column(name="cname")
      private String cname;
  
      @Column(name="description")
      private String description;
      // 省略getter、setter 等方法
  }
  

• 编写dao：CategoryMapper

  package com.czxy.mapper;
  
  import com.czxy.domain.Category;
  import tk.mybatis.mapper.common.Mapper;
  
  /**
   * @author 桐叔
   * @email [email protected]
   */
  @org.apache.ibatis.annotations.Mapper
  public interface CategoryMapper extends Mapper<Category> {
        
        
  }
  
  

• 编写service：CategoryService

  package com.czxy.service;
  
  import com.czxy.mapper.CategoryMapper;
  import org.springframework.stereotype.Service;
  import org.springframework.transaction.annotation.Transactional;
  
  import javax.annotation.Resource;
  
  /**
   * @author 桐叔
   * @email [email protected]
   */
  @Service
  @Transactional
  public class CategoryService {
        
        
  
      @Resource
      private CategoryMapper categoryMapper;
  
  
  }
  
  

• 编写controller：CategoryController

  package com.czxy.controller;
  
  import com.czxy.service.CategoryService;
  import org.springframework.web.bind.annotation.RequestMapping;
  import org.springframework.web.bind.annotation.RestController;
  
  import javax.annotation.Resource;
  
  /**
   * @author 桐叔
   * @email [email protected]
   */
  @RestController
  @RequestMapping("/category")
  public class CategoryController {
        
        
      
      @Resource
      private CategoryService categoryService;
  }
  
  

1.3 商品的基本结构

• 编写domain ：Product

• 编写dao：ProductMapper

• 编写service：ProductService

• 编写controller：ProductController

• 编写domain ：Product

  /**
   * @author 桐叔
   * @email [email protected]
   */
  @Table(name="t_product")
  public class Product {
        
        
      @Id
      private Integer pid;
      @Column(name="pname")
      private String pname;
      @Column(name="price")
      private Double price;
      @Column(name="num")
      private Integer num;
      @Column(name="category_id")
      private Integer categoryId;
  }
  

• 编写dao：ProductMapper

  package com.czxy.mapper;
  
  import com.czxy.domain.Product;
  import tk.mybatis.mapper.common.Mapper;
  
  /**
   * @author 桐叔
   * @email [email protected]
   */
  @org.apache.ibatis.annotations.Mapper
  public interface ProductMapper extends Mapper<Product> {
        
        
  }
  
  

• 编写service：ProductService

  package com.czxy.service;
  
  import com.czxy.mapper.ProductMapper;
  import org.springframework.stereotype.Service;
  import org.springframework.transaction.annotation.Transactional;
  
  import javax.annotation.Resource;
  
  /**
   * @author 桐叔
   * @email [email protected]
   */
  @Service
  @Transactional
  public class ProductService {
        
        
      
      @Resource
      private ProductMapper productMapper;
  
  }
  
  

• 编写controller：ProductController

  package com.czxy.controller;
  
  import com.czxy.service.ProductService;
  import org.springframework.web.bind.annotation.RequestMapping;
  import org.springframework.web.bind.annotation.RestController;
  
  import javax.annotation.Resource;
  
  /**
   * @author 桐叔
   * @email [email protected]
   */
  @RestController
  @RequestMapping("/product")
  public class ProductController {
        
        
  
      @Resource
      private ProductService productService;
  
      
  }
  
  

• 1.5 单表测试

• 基于通用mapper的单表测试：分类

package com.czxy;

import com.czxy.domain.Category;
import com.czxy.mapper.CategoryMapper;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;

import javax.annotation.Resource;
import java.util.List;

/**
 * @author 桐叔
 * @email [email protected]
 */
@RunWith(SpringRunner.class)                    //spring整合Junit
@SpringBootTest(classes=Bms09Application.class) // 整合SpringBoot
public class TestCategory {
    
    
    @Resource
    private CategoryMapper categoryMapper;

    @Test
    public void testDemo() {
    
    
        //查询所有
        List<Category> list = categoryMapper.selectAll();
        for(Category category : list) {
    
    
            System.out.println(category);
        }
    }

    @Test
    public void testDemo02() {
    
    
        // 通过id查询详情
        Category category = categoryMapper.selectByPrimaryKey(2);
        System.out.println(category);

    }
}

• 基于通用mapper的单表测试：商品

package com.czxy;

import com.czxy.domain.Product;
import com.czxy.mapper.ProductMapper;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;

import javax.annotation.Resource;
import java.util.List;

/**
 * @author 桐叔
 * @email [email protected]
 */
@RunWith(SpringRunner.class)
@SpringBootTest(classes=Bms09Application.class)
public class TestProduct {
    
    
    @Resource
    private ProductMapper productMapper;

    @Test
    public void testDemo(){
    
    
        List<Product> list = productMapper.selectAll();
        for (Product product : list) {
    
    
            System.out.println(product);
        }
    }
}