spring测试类

1.测试须要的包

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<!-- 测试须要的包 -->
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>4.13-beta-2</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-test</artifactId>
      <version>4.3.2.RELEASE</version>
    </dependency>

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2.用ClassPathXmlApplicationContext对象写的测试类

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public class TestService {
    @Test
    public void testQueryAll(){
        System.out.println("start");
        ApplicationContext applicationContext = new ClassPathXmlApplicationContext("spring.xml");
        EmpService empService = (EmpService) applicationContext.getBean("empService");
        System.out.println(empService.getClass());
        List<Emp> emps = empService.queryAll();
        for (Emp emp : emps) {
            System.out.println(emp);
        }
        System.out.println("end");

    }
}

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3.前2步状况足够使用了，可是为了代码美观，用@RunWith和@ContextConfiguration两个注解建一个TestBean类，而后测试类继承这个类。

好处：代码美观

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/* * 用@RunWith和@ContextConfiguration两个注解建一个TestBean类 * */
package com.baizhi.my.test;
import org.junit.runner.RunWith;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

@RunWith(SpringJUnit4ClassRunner.class)// 随着工厂环境的运行
@ContextConfiguration("classpath:spring.xml")// 须要指定配置文件
public abstract class TestBean {
}

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/* * 用测试类继承TestBean这个类 * */
package com.baizhi.my.service;

import com.baizhi.my.entity.Emp;
import com.baizhi.my.test.TestBean;
import org.junit.Test;
import org.springframework.beans.factory.annotation.Autowired;

import java.util.ArrayList;
import java.util.List;

public class TestEmpService extends TestBean {
    @Autowired
    EmpService empService;
    @Test
    public void selectAllEmps() {
        List<Emp> empList = new ArrayList<>();
        empList = empService.selectAllEmps();
        for (Emp emp : empList) {
            System.out.println(emp);
        }
    }
}

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试了一下，还行