社交项目（四）

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配置测试用例

1.pom.xml文件引入单元测试依赖

<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-test</artifactId>
    <version>5.2.6.RELEASE</version>
</dependency>
<dependency>
    <groupId>junit</groupId>
    <artifactId>junit</artifactId>
    <version>4.12</version>
</dependency>

2.mapper新增TestMapper接口类

package com.imooc.reader.mapper;

public interface TestMapper {
    public void insert();
}

3.配置TestMapper.xml文件

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.imooc.reader.mapper.TestMapper">
    <insert id="insert">
        insert into test(content) values('测试内容')
    </insert>
</mapper>

代码说明：
namespace="com.imooc.reader.mapper.TestMapper":用来和TestMapper接口类对应起来

4.新增service层

新增TestService

package com.imooc.reader.service;

import com.imooc.reader.mapper.TestMapper;
import org.springframework.stereotype.Service;

import javax.annotation.Resource;
@Service
public class TestService {
    @Resource
    TestMapper testMapper;
    public void batchImport(){
        for (int i = 0; i < 5; i++) {
            testMapper.insert();
        }
    }

}

代码说明：
@Service：表明该类是Service层
@Resource TestMapper testMapper;：引入testMapper

5.使用idea创建测试用例

6.生成测试用例

package com.imooc.reader.service;

import junit.framework.TestCase;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

import javax.annotation.Resource;

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = {"classpath:applicationContext.xml"})
public class TestServiceTest  {
    @Resource
    private TestService testService;
    @Test
    public void testBatchImport() {
        testService.batchImport();
        System.out.println("批量导入成功");
    }
}

代码说明：
@ContextConfiguration(locations = {"classpath:applicationContext.xml"}):引入配置文件 @RunWith(SpringJUnit4ClassRunner.class):运行时junit4模块

7.执行测试用例

发现控制台报错 解决方案：pom.xml引入对应的依赖，因为这个依赖是tomcat提供的，所以我们要进行配置

<dependency>
    <groupId>javax.servlet</groupId>
    <artifactId>javax.servlet-api</artifactId>
    <version>3.1.0</version>
    <scope>provided</scope>
</dependency>

代码说明：
provided：表示运行时才需要，发布到tomcat不需要

8.重新启动

查看数据是否有值