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java - 在 java 中使用 configuration2 读取逗号分隔的属性

转载 作者:塔克拉玛干 更新时间:2023-11-03 05:05:01 27 4
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我有这个属性:

move.patternfile.include = *1a.txt,*2a.txt

我正在尝试使用 Apache 公共(public)配置2将它放入列表中。

我的代码是:

Configurations configs = new Configurations();
AbstractConfiguration config = configs.properties(new File(fileName));
config.setListDelimiterHandler(new DefaultListDelimiterHandler(','));

我可以读取所有其他属性,但我想要的仍然是 1 尺寸列表。

这是检索值的命令:

List<String> linclude = configuration.getList(String.class, "patternfile.include");

你能帮忙吗?

最佳答案

基于 this似乎必须在从文件中读取属性之前设置分隔符。下面的代码在我运行时有效,但会生成警告。

Parameters params = new Parameters();
FileBasedConfigurationBuilder<PropertiesConfiguration> builder =
new FileBasedConfigurationBuilder<PropertiesConfiguration>(
PropertiesConfiguration.class).configure(params.fileBased()
.setListDelimiterHandler(new DefaultListDelimiterHandler(','))
.setFile(new File("test.properties")));
PropertiesConfiguration config = builder.getConfiguration();

List<String> linclude = config.getList(String.class, "patternfile.include");

System.out.println(linclude.size());
for(String item: linclude){
System.out.println(item);
}

测试.properties

patternfile.include = *1a.txt,*2a.txt

输出

2

*1a.txt

*2a.txt

这是我在运行时看到的警告:

Jun 26, 2016 2:12:17 AM org.apache.commons.beanutils.FluentPropertyBeanIntrospector introspect
WARNING: Error when creating PropertyDescriptor for public final void org.apache.commons.configuration2.AbstractConfiguration.setProperty(java.lang.String,java.lang.Object)! Ignoring this property.
java.beans.IntrospectionException: bad write method arg count: public final void org.apache.commons.configuration2.AbstractConfiguration.setProperty(java.lang.String,java.lang.Object)
at java.beans.PropertyDescriptor.findPropertyType(Unknown Source)
at java.beans.PropertyDescriptor.setWriteMethod(Unknown Source)
at java.beans.PropertyDescriptor.<init>(Unknown Source)
at org.apache.commons.beanutils.FluentPropertyBeanIntrospector.createFluentPropertyDescritor(FluentPropertyBeanIntrospector.java:177)
at org.apache.commons.beanutils.FluentPropertyBeanIntrospector.introspect(FluentPropertyBeanIntrospector.java:140)
at org.apache.commons.beanutils.PropertyUtilsBean.fetchIntrospectionData(PropertyUtilsBean.java:2234)
at org.apache.commons.beanutils.PropertyUtilsBean.getIntrospectionData(PropertyUtilsBean.java:2215)
at org.apache.commons.beanutils.PropertyUtilsBean.getPropertyDescriptor(PropertyUtilsBean.java:950)
at org.apache.commons.beanutils.PropertyUtilsBean.isWriteable(PropertyUtilsBean.java:1466)
at org.apache.commons.configuration2.beanutils.BeanHelper.isPropertyWriteable(BeanHelper.java:521)
at org.apache.commons.configuration2.beanutils.BeanHelper.initProperty(BeanHelper.java:357)
at org.apache.commons.configuration2.beanutils.BeanHelper.initBeanProperties(BeanHelper.java:273)
at org.apache.commons.configuration2.beanutils.BeanHelper.initBean(BeanHelper.java:192)
at org.apache.commons.configuration2.beanutils.BeanHelper$BeanCreationContextImpl.initBean(BeanHelper.java:669)
at org.apache.commons.configuration2.beanutils.DefaultBeanFactory.initBeanInstance(DefaultBeanFactory.java:162)
at org.apache.commons.configuration2.beanutils.DefaultBeanFactory.createBean(DefaultBeanFactory.java:116)
at org.apache.commons.configuration2.beanutils.BeanHelper.createBean(BeanHelper.java:459)
at org.apache.commons.configuration2.beanutils.BeanHelper.createBean(BeanHelper.java:479)
at org.apache.commons.configuration2.beanutils.BeanHelper.createBean(BeanHelper.java:492)
at org.apache.commons.configuration2.builder.BasicConfigurationBuilder.createResultInstance(BasicConfigurationBuilder.java:447)
at org.apache.commons.configuration2.builder.BasicConfigurationBuilder.createResult(BasicConfigurationBuilder.java:417)
at org.apache.commons.configuration2.builder.BasicConfigurationBuilder.getConfiguration(BasicConfigurationBuilder.java:285)
at main.Main.main(Main.java:25)

我找到了 this link关于此警告消息。

关于java - 在 java 中使用 configuration2 读取逗号分隔的属性,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/36782847/

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