对springboot的service层方法进行单元测试

梦里梦外; 2021-11-08 16:44 484阅读 0赞

对springboot得service层方法进行测试，由于我的启动类与java代码不在一个模块里，启动类在web模块，service在普通模块内，测试得时候遇到了一些问题。如下图所示。

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2phdmFfeHh4eA_size_16_color_FFFFFF_t_70]

下图，测试类的路径与启动类的路径要一致，切记，切记  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2phdmFfeHh4eA_size_16_color_FFFFFF_t_70 1]

启动类代码

package com.springboot.controller;
    
    import org.mybatis.spring.annotation.MapperScan;
    import org.omg.Messaging.SYNC_WITH_TRANSPORT;
    import org.springframework.boot.SpringApplication;
    import org.springframework.boot.autoconfigure.SpringBootApplication;
    import org.springframework.context.annotation.ComponentScan;
    
    @SpringBootApplication
    @MapperScan(basePackages = "com.springboot.*.mapper")
    @ComponentScan(basePackages={"com.springboot"})
    public class Application {
        public static void main(String args[]){
            System.out.println("垃圾springboot");
            SpringApplication.run(Application.class, args);
        }
    }

service层

@Service
    public class IMybatisUserServiceImpl implements IMybatisUserService {
    
    	    @Autowired
    	    public MyBatisDao myBatisDao;
    	
    	    @Override
    	    public List<MybatisUser> selectAll() {
    	        List<MybatisUser> mybatisUsers = myBatisDao.pageByFilterRows();
    	        return mybatisUsers;
    	    }
        }

dao层

import com.springboot.mybatistest.entity.MybatisUser;
    import org.springframework.stereotype.Repository;
    
    import java.util.List;
    
    @Repository
    public interface MyBatisDao {
        public List<MybatisUser> pageByFilterRows();
    }

测试类

package com.springboot.controller;
    
    
    import com.springboot.mybatistest.entity.MybatisUser;
    import com.springboot.mybatistest.service.IMybatisUserService;
    import org.junit.Test;
    import org.junit.runner.RunWith;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.boot.test.context.SpringBootTest;
    import org.springframework.test.context.junit4.SpringRunner;
    
    import java.util.List;
    
    @RunWith(SpringRunner.class)
    @SpringBootTest(classes = Application.class)
    public class Test1 {
    
    
        @Autowired
        public IMybatisUserService mybatisUserService;
    
        @Test
        public void test(){
           mybatisUserService.select();
            List<MybatisUser> mybatisUsers = mybatisUserService.selectAll();
            System.out.println(mybatisUsers.size());
        }
    }

注：所有的方法都写完后，启动测试类，报错，说找不到mapper文件中的pageByFilterRows方法。最后在sb-core模块的pom文件中添加以下配置。因为如果不添加一下配置，程序只会默认去找resources下的配置文件，所以找不到我们自己写的mapper文件。添加以下配置后，解决问题

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2phdmFfeHh4eA_size_16_color_FFFFFF_t_70]: /images/20211108/b9e24d0807254825b5b661376a1c514a.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2phdmFfeHh4eA_size_16_color_FFFFFF_t_70 1]: /images/20211108/3b55ec8f2a8b4f3f8c2edf82221ba913.png