spring boot 单元测试与读取配置文件（application.yml）中的属性值

ゞ浴缸里的玫瑰 2022-07-15 03:16 350阅读 0赞

1、引入依赖：

<dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-test</artifactId>
                <scope>test</scope>
    </dependency>

2、配置文件（application.yml）中配置各个属性的值：

myProps: #自定义的属性和值
      simpleProp: simplePropValue
      arrayProps: 1,2,3,4,5
      listProp1:
        - name: Solin
          value: SolinValue
        - name: Tom
          value: TomValue
      listProp2:
        - config1Value1
        - config2Value2
      mapProps:
        key1: value1
        key2: value2

3、创建管理配置的实体类：

package Solin.controller;
    
    import java.util.ArrayList;
    import java.util.HashMap;
    import java.util.List;
    import java.util.Map;
    
    import org.springframework.boot.context.properties.ConfigurationProperties;
    import org.springframework.stereotype.Component;
    
    @Component
    @ConfigurationProperties(prefix="myProps",locations = "classpath:application.yml") //接收application.yml中的myProps下面的属性 
    public class MyProps {
    	private String simpleProp;
    	private String[] arrayProps;
    	private List<Map<String, String>> listProp1 = new ArrayList<Map<String, String>>(); //接收prop1里面的属性值
    	private List<String> listProp2 = new ArrayList<String>(); //接收prop2里面的属性值
    	private Map<String, String> mapProps = new HashMap<String, String>(); //接收mapProps里面的属性值
    	
    	public String getSimpleProp() {
    		return simpleProp;
    	}
    	
    	//String类型的一定需要setter来接收属性值；maps, collections不需要
    	public void setSimpleProp(String simpleProp) {
    		this.simpleProp = simpleProp;
    	}
    	
    	public List<Map<String, String>> getListProp1() {
    		return listProp1;
    	}
    	public List<String> getListProp2() {
    		return listProp2;
    	}
    
    	public String[] getArrayProps() {
    		return arrayProps;
    	}
    
    	public void setArrayProps(String[] arrayProps) {
    		this.arrayProps = arrayProps;
    	}
    
    	public Map<String, String> getMapProps() {
    		return mapProps;
    	}
    
    	public void setMapProps(Map<String, String> mapProps) {
    		this.mapProps = mapProps;
    	}
    }

启动后，这个bean里面的属性就会自动接收配置的值了。

4、单元测试用例：

package Solin.controller;
    
    import java.util.Arrays;
    
    import org.junit.Test;
    import org.junit.runner.RunWith;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.boot.test.SpringApplicationConfiguration;
    import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
    
    import com.fasterxml.jackson.core.JsonProcessingException;
    
    import Solin.config.WebAppConfig;
    
    @RunWith(SpringJUnit4ClassRunner.class)  
    //@SpringBootTest(classes=WebAppConfig.class)// 指定spring-boot的启动类   
    @SpringApplicationConfiguration(classes = WebAppConfig.class)// 1.4.0 前版本  注意启动类不要搞错了
    public class MyPropsTest {
    	@Autowired
    	private MyProps myProps; 
    	
    	@Test
    	public void propsTest() throws JsonProcessingException {
    		System.out.println("simpleProp: " + myProps.getSimpleProp());
    		System.out.println("arrayProps: " + Arrays.toString(myProps.getArrayProps()));
    		System.out.println("listProp1: " + myProps.getListProp1());
    		System.out.println("listProp2: " + myProps.getListProp2());
    		System.out.println("mapProps: " + myProps.getMapProps());
    	}
    }

5、测试结果：

simpleProp: simplePropValue
    arrayProps: [1, 2, 3, 4, 5]
    listProp1: [{name=Solin, value=SolinValue}, {name=Tom, value=TomValue}]
    listProp2: [config1Value1, config2Value2]
    mapProps: {key1=value1, key2=value2}

6、可以看到，对spring-boot项目进行单元测试是件容易的事儿，需要添加spring-boot-starter-test依赖，然后 使用@RunWith和@SpringBootTest或@SpringApplicationConfiguration(1.4.0过期)注解，然后引入自己要测试的bean，调用指定方法进行测试即可。

转载自：[http://blog.csdn.net/clementad/article/details/51970962][http_blog.csdn.net_clementad_article_details_51970962]

[http_blog.csdn.net_clementad_article_details_51970962]: http://blog.csdn.net/clementad/article/details/51970962