如何在属性文件中包含“＃”。 '\\＃'转义不起作用

Question

I need to include value with # in properties file but # is used to comment line in properties file. How to I do it.

I want to define mapping something as follow

someField[#]=someValue

But anything after # get commented. Thanks for help.

Answer 1

You can escape the # with \\ , like

someField\#=1

which will get you {someField#=1}

Answer 2

write it like this :

key\#1=value\#1

other special characters like '=', ':' work the same.

Code in Java:

1. write properties:

    Properties p = new Properties(); p.load(PropertiesTest.class.getResourceAsStream("prop.properties")); p.setProperty("key#=dsafw", "value $#@^$%@**^"); p.setProperty("key#1", "value#1"); p.store(new FileOutputStream(new File("../TEMP/prop.properties")), "write special property kvs"); 

2. read properties:

    p.load(new FileInputStream(new File("../TEMP/prop.properties"))); Enumeration<Object> keys = p.keys(); while(keys.hasMoreElements()){ String key = (String) keys.nextElement(); System.out.println("key --> " + key + ", value --> " + p.getProperty(key)); } 

Answer 3

Tested on Java 8 works fine without any escape character

Example below

properties

name# = #John#

Java code

System.out.println( p.getProperty("name#"));

Prints: #John#

Edit:

If the key contains the first character as # in that case you need to escape it with '\\' in properties file

eg

\#country# = #India#