属性文件,列表作为单个键的值 [英] Properties file with a list as the value for an individual key
问题描述
对于我的程序,我想从属性文件中读取一个键,并为键值创建一个相关的值列表。
最近我在尝试像这样
For my program I want to read a key from a properties file and an associated List of values for the key.
Recently I was trying like that
public static Map<String,List<String>>categoryMap = new Hashtable<String, List<String>>();
Properties prop = new Properties();
try {
prop2.load(new FileInputStream(/displayCategerization.properties));
Set<Object> keys = prop.keySet();
List<String> categoryList = new ArrayList<String>();
for (Object key : keys) {
categoryList.add((String)prop2.get(key));
LogDisplayService.categoryMap.put((String)key,categoryList);
}
System.out.println(categoryList);
System.out.println("Category Map :"+LogDisplayService.categoryMap);
keys = null;
prop = null;
} catch (Throwable e) {
e.printStackTrace();
}
,我的属性文件如下 -
and my properties file is like below -
A=APPLE
A=ALPHABET
A=ANT
B=BAT
B=BALL
B=BUS
我想要键A应该有一个包含 [APPLE,ALPHABET,ANT]
和B包含 [BAT,BALL,BUS]
。
就像这样 {A = [APPLE,ALPHABET,ANT],B = [BAT,BALL,BUS]}
{A = [ANT],B = [BUS]}
我在互联网上搜索这样的方式,但什么都找不到。我希望应该有办法。
任何帮助?
I want for key A there should be a list which contain [APPLE, ALPHABET,ANT]
and B contain [BAT,BALL,BUS]
.
So Map should be like this {A=[APPLE, ALPHABET,ANT], B=[BAT,BALL,BUS]}
but I get
{A=[ANT], B=[BUS]}
I searched on the internet for such a way but found nothing. I wish there should be a way.
Any help?
推荐答案
尝试将属性写为逗号分隔列表,然后在属性文件加载。例如
Try writing the properties as a comma seperated list then split the value after the properties file is loaded. For example
a=one,two,three
b=nine,ten,fourteen
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