@Target(value={TYPE,METHOD}) @Retention(value=RUNTIME) @Documented public @interface ConfigurationProperties
@Bean method in a @Configuration class if you want to bind and validate
 some external Properties (e.g. from a .properties file).
 
 Note that contrary to @Value, SpEL expressions are not evaluated since property
 values are externalized.
ConfigurationPropertiesBindingPostProcessor, 
EnableConfigurationProperties| Modifier and Type | Optional Element and Description | 
|---|---|
| boolean | ignoreInvalidFieldsFlag to indicate that when binding to this object invalid fields should be ignored. | 
| boolean | ignoreUnknownFieldsFlag to indicate that when binding to this object unknown fields should be ignored. | 
| String | prefixThe name prefix of the properties that are valid to bind to this object. | 
| String | valueThe name prefix of the properties that are valid to bind to this object. | 
@AliasFor(value="prefix") public abstract String value
prefix(). A valid prefix is defined by one or more words separated
 with dots (e.g. "acme.system.feature").@AliasFor(value="value") public abstract String prefix
value(). A valid prefix is defined by one or more words separated with
 dots (e.g. "acme.system.feature").public abstract boolean ignoreInvalidFields
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