我有一些代码可以在 Spring Boot 2 之前的版本上正常工作,但我发现很难将其转换为与 Spring Boot 2 一起使用。
有人可以帮忙吗?
public static MutablePropertySources buildPropertySources(String propertyFile, String profile)
{
try
{
Properties properties = new Properties();
YamlPropertySourceLoader loader = new YamlPropertySourceLoader();
// load common properties
PropertySource<?> applicationYamlPropertySource = loader.load("properties", new ClassPathResource(propertyFile), null);
Map<String, Object> source = ((MapPropertySource) applicationYamlPropertySource).getSource();
properties.putAll(source);
// load profile properties
if (null != profile)
{
applicationYamlPropertySource = loader.load("properties", new ClassPathResource(propertyFile), profile);
if (null != applicationYamlPropertySource)
{
source = ((MapPropertySource) applicationYamlPropertySource).getSource();
properties.putAll(source);
}
}
propertySources = new MutablePropertySources();
propertySources.addLast(new PropertiesPropertySource("apis", properties));
}
catch (Exception e)
{
log.error("{} file cannot be found.", propertyFile);
return null;
}
}
public static <T> void handleConfigurationProperties(T bean, MutablePropertySources propertySources) throws BindException
{
ConfigurationProperties configurationProperties = bean.getClass().getAnnotation(ConfigurationProperties.class);
if (null != configurationProperties && null != propertySources)
{
String prefix = configurationProperties.prefix();
String value = configurationProperties.value();
if (null == value || value.isEmpty())
{
value = prefix;
}
PropertiesConfigurationFactory<?> configurationFactory = new PropertiesConfigurationFactory<>(bean);
configurationFactory.setPropertySources(propertySources);
configurationFactory.setTargetName(value);
configurationFactory.bindPropertiesToTarget();
}
}
PropertiesConfigurationFactory
不再存在,YamlPropertySourceLoader
加载方法不再接受 3 个参数。
(响应也不相同,当我尝试调用新方法时,响应对象被包装而不是直接给我字符串/整数等...)
最佳答案
PropertiesConfigurationFactory
应替换为 Binder
类。
示例代码:-
ConfigurationPropertySource source = new MapConfigurationPropertySource(
loadProperties(resource));
Binder binder = new Binder(source);
return binder.bind("initializr", InitializrProperties.class).get();
We were also using PropertiesConfigurationFactory to bind a POJO to a prefix of the Environment. In 2.0, a brand new Binder API was introduced that is more flexible and easier to use. Our binding that took 10 lines of code could be reduced to 3 simple lines.
YamlPropertySourceLoader:-
是的,这个类在版本2中已经改变了。它不接受第三个参数profile
不再了。方法签名已更改为返回 List<PropertySource<?>>
而不是PropertySource<?>
。如果您期望单一来源,请从列表中获取第一个出现的位置。
Load the resource into one or more property sources. Implementations may either return a list containing a single source, or in the case of a multi-document format such as yaml a source for each document in the resource.
关于java - Spring Boot 2属性配置,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/52421180/