apache-commons-config PropertiesConfiguration：最后一个属性丢失后的注释
我正在使用 PropertiesConfiguration 编辑属性文件。这让我可以保留评论。除了最后一个键后面的注释之外，一切正常。
例如输入文件
# *** A comment
GameCheck.no=No
**# end coment**
输出如下。它丢失了最后一个键之后的注释
# *** A comment
GameCheck.no = myvar
代码如下。
package trials;
import org.apache.commons.configuration.ConfigurationException;
import org.apache.commons.configuration.PropertiesConfiguration;
import org.apache.commons.configuration.PropertiesConfigurationLayout;
import java.io.FileWriter;
import java.io.IOException;
public class EditVersion {
public static void main(String[] args) {
try {
PropertiesConfiguration config = new PropertiesConfiguration("C:\\try\\in.properties");
config.setProperty("application.version", "myvar");
PropertiesConfigurationLayout layout = config.getLayout();
config.save( new FileWriter( "c:/try/out.props"));
} catch (ConfigurationException e) {
} catch (IOException e) {
e.printStackTrace(); //To change body of catch statement use File | Settings | File Templates.
}
}
}
解决方法是在文件末尾添加一个虚拟属性。有正确的方法吗？
I am using PropertiesConfiguration to edit property file. This allows me to retain comments. All works fine except for comments that comes after the last key..
For example input file
# *** A comment
GameCheck.no=No
**# end coment**
The output is as below. It lost comment that was after last key
# *** A comment
GameCheck.no = myvar
The code as below.
package trials;
import org.apache.commons.configuration.ConfigurationException;
import org.apache.commons.configuration.PropertiesConfiguration;
import org.apache.commons.configuration.PropertiesConfigurationLayout;
import java.io.FileWriter;
import java.io.IOException;
public class EditVersion {
public static void main(String[] args) {
try {
PropertiesConfiguration config = new PropertiesConfiguration("C:\\try\\in.properties");
config.setProperty("application.version", "myvar");
PropertiesConfigurationLayout layout = config.getLayout();
config.save( new FileWriter( "c:/try/out.props"));
} catch (ConfigurationException e) {
} catch (IOException e) {
e.printStackTrace(); //To change body of catch statement use File | Settings | File Templates.
}
}
}
Work around is to add a dummy property towards the end of file. Is there a correct way?
如果你对这篇内容有疑问，欢迎到本站社区发帖提问 参与讨论，获取更多帮助，或者扫码二维码加入 Web 技术交流群。
绑定邮箱获取回复消息
由于您还没有绑定你的真实邮箱，如果其他用户或者作者回复了您的评论，将不能在第一时间通知您！
发布评论
评论（3）
这是一个应该在项目的 JIRA 中报告的错误:)
https://issues.apache.org /jira/browse/配置
This is a bug that should be reported in the project's JIRA :)
https://issues.apache.org/jira/browse/CONFIGURATION
您可以尝试从
**# end comment**开头删除**以防产生影响。还要检查一下如果最后一行后面有一个空行是否有帮助。
You could try to remove the
**from the beginning of**# end coment**in case it makes a difference.Also check out whether it helps if there is an empty line just after your last actual line.
这似乎是旧版本的 commons-configuration ( 1.8 <= ) 的一个错误，
版本 1.10 应该可以解决这个问题。
从这里下载 https://commons.apache.org/proper/commons-configuration /download_configuration.cgi
This seems to be a bug for old versions of commons-configuration ( 1.8 <= )
Version 1.10 should solve the issue.
Download from here https://commons.apache.org/proper/commons-configuration/download_configuration.cgi