需引入jar包

<!-- https://mvnrepository.com/artifact/commons-configuration/commons-configuration -->
<dependency>
<groupId>commons-configuration</groupId>
<artifactId>commons-configuration</artifactId>
<version>1.10</version>
</dependency>

PropertiesConfiguration config = new PropertiesConfiguration();
config.setEncoding("UTF-8");//编码
config.load("文件路径");//读取文件，如果不写这一步，那么setFileName文件将是空文件，然后存入我们设定的属性

config.setFileName("文件路径");

Iterator<String> keys = config.getKeys();
while(keys.hasNext()){
    //如果存在，则调用next实现迭代
    //Object-->Integer-->int
    String key=keys.next(); 
    if(key.split("_")[2].equals("*****"))//要修改的属性值
    config.setProperty(key,"33333");
}
config.setProperty("****", "11111");
config.save();