在测试xml资源之前阅读spring属性源

Question

在spring boot 1.4中，在主类中我有一个导入xml资源的配置类。

@ImportResource("classpath:app-config-c3p0.xml") 

在src/test/resources/application.properties我所提供的属性

datasource.database.master.pool-size=1 

但我仍然面临着问题，我试图添加顺序和@PropertySource也@TestPropertySource，但没有一次成功。

以下是例外

Caused by: org.springframework.beans.TypeMismatchException: Failed to convert property value of type [java.lang.String] to required type [int] for property 'maxPoolSize'; nested exception is java.lang.NumberFormatException: For input string: "${datasource.database.master.pool-size}" 
    at org.springframework.beans.AbstractNestablePropertyAccessor.convertIfNecessary(AbstractNestablePropertyAccessor.java:596) 
    at org.springframework.beans.AbstractNestablePropertyAccessor.convertForProperty(AbstractNestablePropertyAccessor.java:603) 
    at org.springframework.beans.BeanWrapperImpl.convertForProperty(BeanWrapperImpl.java:216) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.convertForProperty(AbstractAutowireCapableBeanFactory.java:1532) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1491) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1231) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:543) 
    ... 54 common frames omitted 
Caused by: java.lang.NumberFormatException: For input string: "${datasource.database.master.pool-size}" 
    at java.lang.NumberFormatException.forInputString(NumberFormatException.java:65) 
    at java.lang.Integer.parseInt(Integer.java:569) 
    at java.lang.Integer.valueOf(Integer.java:766) 
    at org.springframework.util.NumberUtils.parseNumber(NumberUtils.java:208) 
    at org.springframework.beans.propertyeditors.CustomNumberEditor.setAsText(CustomNumberEditor.java:113) 
    at org.springframework.beans.TypeConverterDelegate.doConvertTextValue(TypeConverterDelegate.java:468) 
    at org.springframework.beans.TypeConverterDelegate.doConvertValue(TypeConverterDelegate.java:441) 
    at org.springframework.beans.TypeConverterDelegate.convertIfNecessary(TypeConverterDelegate.java:199) 
    at org.springframework.beans.AbstractNestablePropertyAccessor.convertIfNecessary(AbstractNestablePropertyAccessor.java:576) 
    ... 60 common frames omitted 

它的正常工作的性质从春季云配置服务器读取未运行测试时。

以下是测试案例

@WebMvcTest(VCController.class) 
@RunWith(SpringRunner.class) 
@TestPropertySource("classpath:test.properties") 
public class VCControllerTest { 

    @MockBean 
    private VCGateway vCGateway; 

    @Autowired 
    private MockMvc mvc; 

    @Test 
    public void testCreateVoucher() throws Exception { 
     int timeout = 10; 
     CreateVC createVC = new CreateVC(timeout); 
     CreatedVCModel createdVCModel = new CreatedVCModel(); 

     given(vCGateway.create(createVC)).willReturn(createdVCModel); 


     mvc.perform(post("/v1/vc") 
       .content(json(createVC)) 
       .accept(MediaType.APPLICATION_JSON)) 
       .andExpect(status().isCreated()); 
    } 



} 

Answer 1

是否尝试在您的java配置文件中添加PropertySourcesPlaceholderConfigurer bean以解析@Value注释中的$ {...}表达式。

通过添加该内部类：

@Configuration 
public static class TestContext{ 
     @Bean 
     public static PropertySourcesPlaceholderConfigurer properties(){ 
      return new PropertySourcesPlaceholderConfigurer(); 
     } 
} 

如果需要添加@ContextConfiguration（装载机= AnnotationConfigContextLoader.class）到您的VCControllerTest测试类加载@Configuration类。

Answer 2

正常时该属性没有得到解决，就会出现此错误。

添加resources目录下的src/test/resources为您的测试属性，应该工作。