spring 構造器多構造器指定初始化對象+test測試

package testone.bean;


import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

/**
 * @author helloLi
 * @version 1.0
 * @date 2020/4/7 22:59
 */
public class TestStudent {
    int id;
    String name;

    public TestStudent(String name) {
        this.name = name;
    }

    public TestStudent(int id, String name) {
        this.id = id;
        this.name = name;
    }

    public TestStudent() {
    }

    public int getId() {
        return id;
    }

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

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }
}

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">


    <bean id = "TestStudent" class="testone.bean.TestStudent">
    <constructor-arg name="id" type="int" value="1"/>
    <constructor-arg name="name" type="java.lang.String" value="lisi"/>
    </bean>
    <bean id = "testStudent2" class="testone.bean.TestStudent">
        <constructor-arg name="name" type="java.lang.String" value="wangwu"/>
    </bean>

</beans>

package testone.bean;

import com.sun.scenario.effect.impl.sw.sse.SSEBlend_SRC_OUTPeer;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.context.ApplicationContext;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import org.springframework.web.context.support.XmlWebApplicationContext;

import static org.junit.Assert.*;

/**
 * @author helloLi
 * @version 1.0
 * @date 2020/4/8 9:33
 */
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = "classpath:META-INF/spring/demo.xml")
public class TestStudentTest {

    @Autowired
    @Qualifier("testStudent2")
    private TestStudent testStudent;

    @Test
    public void TestStudentTest() {
        System.out.println(testStudent.getName());
    }
}

直接在java包裏面測試不在Junit4中：

package testone.bean;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.web.context.support.XmlWebApplicationContext;

/**
 * @author helloLi
 * @version 1.0
 * @date 2020/4/8 9:45
 */
public class Test {
    public static void main(String[] args) {
        ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext("META-INF/spring/demo.xml");
//        String path = "demo.xml";
//        context.setConfigLocation(path);
//        context.refresh();
      TestStudent student  =  (TestStudent) context.getBean("testStudent2");
        System.out.println(student.getName());
    }
}