新手详细讲解：spring注入int、String、list、 set 、map数据，junit测试。

矫情吗；* 2024-04-18 21:28 17阅读 0赞

### 新手：spring注入基本类型数据 ###

**1.首先看一下谷咕咕这次例子用到的项目结构**  
用到SomeValue.java,TestCase2.java,BascValue.xml这三个文件，其他的文件和这次不想关。  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2ExNDI0MjYxMzAz_size_16_color_FFFFFF_t_70]  
**2.SomeValue.java**  
这里用了多种不同类型的数据演示。同时添加get，set，toSting方法

package Value;
    
    import java.util.List;
    import java.util.Map;
    import java.util.Properties;
    import java.util.Set;
    
    public class BasicValue { 
    	private String name;
    	private int age;
    	private List<String> city;
    	private Set<String> hobby;
    	private Map<String,Double> map;
    	private Properties properties;
    	public BasicValue() { 
    		System.out.println("BasicValue()");
    	}
    	public void setProperties(Properties properties) { 
    		this.properties=properties;
    	}
    	public void setMap(Map<String,Double> map) { 
    		this.map=map;
    	}
    	public void setCity(List<String> city) { 
    		this.city=city;
    	}
    	public void setHobby(Set<String> hobby) { 
    		this.hobby=hobby;
    	}
    	public String getName() { 
    		return name;
    	}
    	public void setName(String name) { 
    		this.name = name;
    	}
    	public int getAge() { 
    		return age;
    	}
    	public void setAge(int age) { 
    		this.age = age;
    	}
    	@Override
    	public String toString() { 
    		return "BasicValue [name=" + name + ", age=" + age +",city"+city+ ",hobby"+hobby+",map"+map+",properties"+properties+"]";
    	}
    	
    
    }

**3.BascValue.xml**  
然后我在BascValue.xml申明bean  
id=“basic” 一会再TestCase2.java中要对应他的id  
class=“Value.BasicValue”对应BasicValue.java的包名+类名，因为我们是对BasicValue注入

<?xml version="1.0" encoding="UTF-8"?>
    <beans xmlns="http://www.springframework.org/schema/beans" xmlns:context="http://www.springframework.org/schema/context" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:util="http://www.springframework.org/schema/util" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-2.5.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-3.0.xsd">
        		<bean id="basic" class="Value.BasicValue">
        		
        		<property name="name" value="张三"></property>
        		<property name="age" value="23"></property>
        		<property name="city">
        		<list>
        			<value>安庆</value>
        			<value>连云港</value>
        			<value>安庆</value>
        			<value>安庆</value>
        		</list>
        		</property>
        		<property name="hobby">
        		<set>
        			<value>小吃</value>
        			<value>看书</value>
        			<value>羽毛球</value>
        			<value>逛街</value>
        		</set>
        		</property>
        		<property name="map">
        		<map>
        			<entry key="金牌" value="105"></entry>
        			<entry key="银牌" value="105"></entry>
        			<entry key="铜牌" value="105"></entry>
        		</map>
        		</property>
        		<property name="properties">
        		<props>
        		<prop key="admin">123</prop>
        		<prop key="password">123</prop>
        		</props>
        		</property>
        		</bean>
    </bean>

**4.TestCase2.java**  
然后我们写一个测试类来测试。  
看到这么多代码别怕，应为有用的就Test2（）  
因为谷咕咕也在学习，所以懒了就没有删除其他的测试类，抱歉啦！  
要是想看清把其他的Test()删掉也可以。

package test;
    
    import org.junit.Before;
    import org.junit.Test;
    import org.springframework.context.ApplicationContext;
    import org.springframework.context.support.AbstractApplicationContext;
    import org.springframework.context.support.ClassPathXmlApplicationContext;
    
    import IOC2.A;
    import IOC2.Rest;
    import SpringScope.HelloBean;
    import SpringScope.PsersonBean;
    import Value.BasicValue;
    import Value.Page;
    import Value.SomeValue;
    import Value.SomeValue2;
    import Web.UserServlet;
    
    public class TestCase2 { 
    	private ApplicationContext ac;
    	private final static String XML="BasicValue.xml";
    	@Before
    	public void init() { 
    // ApplicationContext 
    		ac=new ClassPathXmlApplicationContext(XML);
    	}
    	/** * 测试自动装配 */
    // @Test
    	public void test1() { 
    		Rest r=ac.getBean("rest",Rest.class);
    		System.out.println(r);
    		
    	}
    	@Test
    	public void test2() { 
    		BasicValue basic=ac.getBean("basic",BasicValue.class);
    		System.out.println(basic);
    		
    	}
    // @Test
    	public void test3() { 
    		SomeValue some=ac.getBean("some", SomeValue.class);
    		System.out.println(some);
    	}
    // @Test 测试引用凡是的注入
    	public void test4() { 
    		BasicValue basic2=ac.getBean("bas",BasicValue.class);
    		System.out.println(basic2);
    		
    	}
    // @Test
    	public void test5() { 
    		BasicValue basic3=ac.getBean("bas2",BasicValue.class);
    		System.out.println(basic3);
    		
    	}
    // @Test
    	public void test6() { 
    		SomeValue2 some2=ac.getBean("some2",SomeValue2.class);
    		System.out.println(some2);
    		
    	}
    	/** * 老师的作业读取config。properties中的page=3 */
    // @Test
    	public void test7() { 
    		Page page=ac.getBean("page2",Page.class);
    		System.out.println(page);
    	}
    	
    	
    	
    	
    }

最后我们看一下测试的结果  
只要看谷咕咕画圈的就可以了，其他的是谷咕咕写的其他的bean在spring启动时创建是写的无参构造器中输出的，便于自己学习。  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2ExNDI0MjYxMzAz_size_16_color_FFFFFF_t_70 1]  
对了要说一下，这里谷咕咕用的事Junit测试  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2ExNDI0MjYxMzAz_size_16_color_FFFFFF_t_70 2]  
@Test怎么出现？  
先打@然后再按alt+/键可以选择@Test  
别嫌谷咕咕唠叨，我只是个菜鸟，记录一下。

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[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2ExNDI0MjYxMzAz_size_16_color_FFFFFF_t_70 1]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/18/2e72b17c99434e8093b11897f877327a.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2ExNDI0MjYxMzAz_size_16_color_FFFFFF_t_70 2]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/18/aaa5835301134bfd90afb568918eafc3.png