java Spring：如何在 Spring 配置中注入 ENUM？
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Spring: How do I inject ENUM in Spring configuration?
提问by daydreamer
I have a ENUMas
我有一个ENUM为
package com.myorg.sparrow.s3Environment;
import javax.annotation.Nonnull;
public enum DocumentType {
Document("document/", ".xml.gz", "binary/octet-stream", "gzip", true);
private final String path;
private final String suffix;
private final String contentType;
private final String contentEncoding;
private final Boolean compress;
private DocumentType(@Nonnull final String path, @Nonnull final String suffix,
@Nonnull final String contentType, @Nonnull final String contentEncoding,
@Nonnull final Boolean compress) {
this.path = path;
this.suffix = suffix;
this.contentType = contentType;
this.contentEncoding = contentEncoding;
this.compress = compress;
}
@Nonnull
public String getPath() {
return path;
}
@Nonnull
public String getSuffix() {
return suffix;
}
@Nonnull
public String getContentType() {
return contentType;
}
@Nonnull
public String getContentEncoding() {
return contentEncoding;
}
@Nonnull
public Boolean isCompress() {
return compress;
}
}
I want to inject this value of DocumentType.Documentin Springconfiguration file
我想DocumentType.Document在Spring配置文件中注入这个值
<bean id="s3Service" class="com.myorg.sparrow.business.xml.persist.S3Service">
<constructor-arg ref="awsCredentials" />
<constructor-arg value="**DocumentType.DOCUMENT**" /> // how do I inject it here?
<constructor-arg value="${com.myorg.sparrow.s3EnvironmentConfiguration.S3EnvironmentConfigurator-destBucketName}" />
</bean>
How do I inject this value in
我如何注入这个值
<constructor-arg value="**DocumentType.DOCUMENT**" /> // how do I inject it here?
I am very new to Spring framework and not sure how to achieve this
我对 Spring 框架很陌生，不知道如何实现
Thank you
谢谢
回答by MK.
<bean id="s3Service" class="com.myorg.sparrow.business.xml.persist.S3Service">
<constructor-arg ref="awsCredentials" />
<constructor-arg value="Document" /> // We love Spring because it is simpler than we expect
<constructor-arg value="${com.myorg.sparrow.s3EnvironmentConfiguration.S3EnvironmentConfigurator-destBucketName}" />
</bean>
回答by Ravi K
Seems like you need to use "org.springframework.beans.factory.config.FieldRetrievingFactoryBean"
似乎您需要使用“org.springframework.beans.factory.config.FieldRetrievingFactoryBean”
example:
例子：
<property name="b">
<bean class="org.springframework.beans.factory.config.FieldRetrievingFactoryBean">
<property name="targetClass" value="whole.package.path.A$B"></property>
<property name="targetField" value="FIRST"></property>
</bean>
</property>
References:
参考：
http://forum.springsource.org/showthread.php?19396-Accessing-enum-value-defined-in-inner-class
http://forum.springsource.org/showthread.php?19396-Accessing-enum-value-defined-in-inner-class
http://forum.springsource.org/showthread.php?19696-Spring-1-2-3-How-do-I-inject-Java-1-5-Enums
http://forum.springsource.org/showthread.php?19696-Spring-1-2-3-How-do-I-inject-Java-1-5-Enums
